// Snap.svg 0.3.0 // // Copyright (c) 2013 – 2014 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // // build: 2014-09-17 // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ┌────────────────────────────────────────────────────────────┐ \\ // │ Eve 0.4.2 - JavaScript Events Library │ \\ // ├────────────────────────────────────────────────────────────┤ \\ // │ Author Dmitry Baranovskiy (http://dmitry.baranovskiy.com/) │ \\ // └────────────────────────────────────────────────────────────┘ \\ (function (glob) { var version = "0.4.2", has = "hasOwnProperty", separator = /[\.\/]/, comaseparator = /\s*,\s*/, wildcard = "*", fun = function () {}, numsort = function (a, b) { return a - b; }, current_event, stop, events = {n: {}}, firstDefined = function () { for (var i = 0, ii = this.length; i < ii; i++) { if (typeof this[i] != "undefined") { return this[i]; } } }, lastDefined = function () { var i = this.length; while (--i) { if (typeof this[i] != "undefined") { return this[i]; } } }, /*\ * eve [ method ] * Fires event with given `name`, given scope and other parameters. > Arguments - name (string) name of the *event*, dot (`.`) or slash (`/`) separated - scope (object) context for the event handlers - varargs (...) the rest of arguments will be sent to event handlers = (object) array of returned values from the listeners. Array has two methods `.firstDefined()` and `.lastDefined()` to get first or last not `undefined` value. \*/ eve = function (name, scope) { name = String(name); var e = events, oldstop = stop, args = Array.prototype.slice.call(arguments, 2), listeners = eve.listeners(name), z = 0, f = false, l, indexed = [], queue = {}, out = [], ce = current_event, errors = []; out.firstDefined = firstDefined; out.lastDefined = lastDefined; current_event = name; stop = 0; for (var i = 0, ii = listeners.length; i < ii; i++) if ("zIndex" in listeners[i]) { indexed.push(listeners[i].zIndex); if (listeners[i].zIndex < 0) { queue[listeners[i].zIndex] = listeners[i]; } } indexed.sort(numsort); while (indexed[z] < 0) { l = queue[indexed[z++]]; out.push(l.apply(scope, args)); if (stop) { stop = oldstop; return out; } } for (i = 0; i < ii; i++) { l = listeners[i]; if ("zIndex" in l) { if (l.zIndex == indexed[z]) { out.push(l.apply(scope, args)); if (stop) { break; } do { z++; l = queue[indexed[z]]; l && out.push(l.apply(scope, args)); if (stop) { break; } } while (l) } else { queue[l.zIndex] = l; } } else { out.push(l.apply(scope, args)); if (stop) { break; } } } stop = oldstop; current_event = ce; return out; }; // Undocumented. Debug only. eve._events = events; /*\ * eve.listeners [ method ] * Internal method which gives you array of all event handlers that will be triggered by the given `name`. > Arguments - name (string) name of the event, dot (`.`) or slash (`/`) separated = (array) array of event handlers \*/ eve.listeners = function (name) { var names = name.split(separator), e = events, item, items, k, i, ii, j, jj, nes, es = [e], out = []; for (i = 0, ii = names.length; i < ii; i++) { nes = []; for (j = 0, jj = es.length; j < jj; j++) { e = es[j].n; items = [e[names[i]], e[wildcard]]; k = 2; while (k--) { item = items[k]; if (item) { nes.push(item); out = out.concat(item.f || []); } } } es = nes; } return out; }; /*\ * eve.on [ method ] ** * Binds given event handler with a given name. You can use wildcards “`*`” for the names: | eve.on("*.under.*", f); | eve("mouse.under.floor"); // triggers f * Use @eve to trigger the listener. ** > Arguments ** - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards - f (function) event handler function ** = (function) returned function accepts a single numeric parameter that represents z-index of the handler. It is an optional feature and only used when you need to ensure that some subset of handlers will be invoked in a given order, despite of the order of assignment. > Example: | eve.on("mouse", eatIt)(2); | eve.on("mouse", scream); | eve.on("mouse", catchIt)(1); * This will ensure that `catchIt` function will be called before `eatIt`. * * If you want to put your handler before non-indexed handlers, specify a negative value. * Note: I assume most of the time you don’t need to worry about z-index, but it’s nice to have this feature “just in case”. \*/ eve.on = function (name, f) { name = String(name); if (typeof f != "function") { return function () {}; } var names = name.split(comaseparator); for (var i = 0, ii = names.length; i < ii; i++) { (function (name) { var names = name.split(separator), e = events, exist; for (var i = 0, ii = names.length; i < ii; i++) { e = e.n; e = e.hasOwnProperty(names[i]) && e[names[i]] || (e[names[i]] = {n: {}}); } e.f = e.f || []; for (i = 0, ii = e.f.length; i < ii; i++) if (e.f[i] == f) { exist = true; break; } !exist && e.f.push(f); }(names[i])); } return function (zIndex) { if (+zIndex == +zIndex) { f.zIndex = +zIndex; } }; }; /*\ * eve.f [ method ] ** * Returns function that will fire given event with optional arguments. * Arguments that will be passed to the result function will be also * concated to the list of final arguments. | el.onclick = eve.f("click", 1, 2); | eve.on("click", function (a, b, c) { | console.log(a, b, c); // 1, 2, [event object] | }); > Arguments - event (string) event name - varargs (…) and any other arguments = (function) possible event handler function \*/ eve.f = function (event) { var attrs = [].slice.call(arguments, 1); return function () { eve.apply(null, [event, null].concat(attrs).concat([].slice.call(arguments, 0))); }; }; /*\ * eve.stop [ method ] ** * Is used inside an event handler to stop the event, preventing any subsequent listeners from firing. \*/ eve.stop = function () { stop = 1; }; /*\ * eve.nt [ method ] ** * Could be used inside event handler to figure out actual name of the event. ** > Arguments ** - subname (string) #optional subname of the event ** = (string) name of the event, if `subname` is not specified * or = (boolean) `true`, if current event’s name contains `subname` \*/ eve.nt = function (subname) { if (subname) { return new RegExp("(?:\\.|\\/|^)" + subname + "(?:\\.|\\/|$)").test(current_event); } return current_event; }; /*\ * eve.nts [ method ] ** * Could be used inside event handler to figure out actual name of the event. ** ** = (array) names of the event \*/ eve.nts = function () { return current_event.split(separator); }; /*\ * eve.off [ method ] ** * Removes given function from the list of event listeners assigned to given name. * If no arguments specified all the events will be cleared. ** > Arguments ** - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards - f (function) event handler function \*/ /*\ * eve.unbind [ method ] ** * See @eve.off \*/ eve.off = eve.unbind = function (name, f) { if (!name) { eve._events = events = {n: {}}; return; } var names = name.split(comaseparator); if (names.length > 1) { for (var i = 0, ii = names.length; i < ii; i++) { eve.off(names[i], f); } return; } names = name.split(separator); var e, key, splice, i, ii, j, jj, cur = [events]; for (i = 0, ii = names.length; i < ii; i++) { for (j = 0; j < cur.length; j += splice.length - 2) { splice = [j, 1]; e = cur[j].n; if (names[i] != wildcard) { if (e[names[i]]) { splice.push(e[names[i]]); } } else { for (key in e) if (e[has](key)) { splice.push(e[key]); } } cur.splice.apply(cur, splice); } } for (i = 0, ii = cur.length; i < ii; i++) { e = cur[i]; while (e.n) { if (f) { if (e.f) { for (j = 0, jj = e.f.length; j < jj; j++) if (e.f[j] == f) { e.f.splice(j, 1); break; } !e.f.length && delete e.f; } for (key in e.n) if (e.n[has](key) && e.n[key].f) { var funcs = e.n[key].f; for (j = 0, jj = funcs.length; j < jj; j++) if (funcs[j] == f) { funcs.splice(j, 1); break; } !funcs.length && delete e.n[key].f; } } else { delete e.f; for (key in e.n) if (e.n[has](key) && e.n[key].f) { delete e.n[key].f; } } e = e.n; } } }; /*\ * eve.once [ method ] ** * Binds given event handler with a given name to only run once then unbind itself. | eve.once("login", f); | eve("login"); // triggers f | eve("login"); // no listeners * Use @eve to trigger the listener. ** > Arguments ** - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards - f (function) event handler function ** = (function) same return function as @eve.on \*/ eve.once = function (name, f) { var f2 = function () { eve.unbind(name, f2); return f.apply(this, arguments); }; return eve.on(name, f2); }; /*\ * eve.version [ property (string) ] ** * Current version of the library. \*/ eve.version = version; eve.toString = function () { return "You are running Eve " + version; }; (typeof module != "undefined" && module.exports) ? (module.exports = eve) : (typeof define === "function" && define.amd ? (define("eve", [], function() { return eve; })) : (glob.eve = eve)); })(this); (function (glob, factory) { // AMD support if (typeof define == "function" && define.amd) { // Define as an anonymous module define(["eve"], function (eve) { return factory(glob, eve); }); } else if (typeof exports != 'undefined') { // Next for Node.js or CommonJS var eve = require('eve'); module.exports = factory(glob, eve); } else { // Browser globals (glob is window) // Snap adds itself to window factory(glob, glob.eve); } }(window || this, function (window, eve) { // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. var mina = (function (eve) { var animations = {}, requestAnimFrame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) { setTimeout(callback, 16); }, isArray = Array.isArray || function (a) { return a instanceof Array || Object.prototype.toString.call(a) == "[object Array]"; }, idgen = 0, idprefix = "M" + (+new Date).toString(36), ID = function () { return idprefix + (idgen++).toString(36); }, diff = function (a, b, A, B) { if (isArray(a)) { res = []; for (var i = 0, ii = a.length; i < ii; i++) { res[i] = diff(a[i], b, A[i], B); } return res; } var dif = (A - a) / (B - b); return function (bb) { return a + dif * (bb - b); }; }, timer = Date.now || function () { return +new Date; }, sta = function (val) { var a = this; if (val == null) { return a.s; } var ds = a.s - val; a.b += a.dur * ds; a.B += a.dur * ds; a.s = val; }, speed = function (val) { var a = this; if (val == null) { return a.spd; } a.spd = val; }, duration = function (val) { var a = this; if (val == null) { return a.dur; } a.s = a.s * val / a.dur; a.dur = val; }, stopit = function () { var a = this; delete animations[a.id]; a.update(); eve("mina.stop." + a.id, a); }, pause = function () { var a = this; if (a.pdif) { return; } delete animations[a.id]; a.update(); a.pdif = a.get() - a.b; }, resume = function () { var a = this; if (!a.pdif) { return; } a.b = a.get() - a.pdif; delete a.pdif; animations[a.id] = a; }, update = function () { var a = this, res; if (isArray(a.start)) { res = []; for (var j = 0, jj = a.start.length; j < jj; j++) { res[j] = +a.start[j] + (a.end[j] - a.start[j]) * a.easing(a.s); } } else { res = +a.start + (a.end - a.start) * a.easing(a.s); } a.set(res); }, frame = function () { var len = 0; for (var i in animations) if (animations.hasOwnProperty(i)) { var a = animations[i], b = a.get(), res; len++; a.s = (b - a.b) / (a.dur / a.spd); if (a.s >= 1) { delete animations[i]; a.s = 1; len--; (function (a) { setTimeout(function () { eve("mina.finish." + a.id, a); }); }(a)); } a.update(); } len && requestAnimFrame(frame); }, /*\ * mina [ method ] ** * Generic animation of numbers ** - a (number) start _slave_ number - A (number) end _slave_ number - b (number) start _master_ number (start time in general case) - B (number) end _master_ number (end time in gereal case) - get (function) getter of _master_ number (see @mina.time) - set (function) setter of _slave_ number - easing (function) #optional easing function, default is @mina.linear = (object) animation descriptor o { o id (string) animation id, o start (number) start _slave_ number, o end (number) end _slave_ number, o b (number) start _master_ number, o s (number) animation status (0..1), o dur (number) animation duration, o spd (number) animation speed, o get (function) getter of _master_ number (see @mina.time), o set (function) setter of _slave_ number, o easing (function) easing function, default is @mina.linear, o status (function) status getter/setter, o speed (function) speed getter/setter, o duration (function) duration getter/setter, o stop (function) animation stopper o pause (function) pauses the animation o resume (function) resumes the animation o update (function) calles setter with the right value of the animation o } \*/ mina = function (a, A, b, B, get, set, easing) { var anim = { id: ID(), start: a, end: A, b: b, s: 0, dur: B - b, spd: 1, get: get, set: set, easing: easing || mina.linear, status: sta, speed: speed, duration: duration, stop: stopit, pause: pause, resume: resume, update: update }; animations[anim.id] = anim; var len = 0, i; for (i in animations) if (animations.hasOwnProperty(i)) { len++; if (len == 2) { break; } } len == 1 && requestAnimFrame(frame); return anim; }; /*\ * mina.time [ method ] ** * Returns the current time. Equivalent to: | function () { | return (new Date).getTime(); | } \*/ mina.time = timer; /*\ * mina.getById [ method ] ** * Returns an animation by its id - id (string) animation's id = (object) See @mina \*/ mina.getById = function (id) { return animations[id] || null; }; /*\ * mina.linear [ method ] ** * Default linear easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.linear = function (n) { return n; }; /*\ * mina.easeout [ method ] ** * Easeout easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.easeout = function (n) { return Math.pow(n, 1.7); }; /*\ * mina.easein [ method ] ** * Easein easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.easein = function (n) { return Math.pow(n, .48); }; /*\ * mina.easeinout [ method ] ** * Easeinout easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.easeinout = function (n) { if (n == 1) { return 1; } if (n == 0) { return 0; } var q = .48 - n / 1.04, Q = Math.sqrt(.1734 + q * q), x = Q - q, X = Math.pow(Math.abs(x), 1 / 3) * (x < 0 ? -1 : 1), y = -Q - q, Y = Math.pow(Math.abs(y), 1 / 3) * (y < 0 ? -1 : 1), t = X + Y + .5; return (1 - t) * 3 * t * t + t * t * t; }; /*\ * mina.backin [ method ] ** * Backin easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.backin = function (n) { if (n == 1) { return 1; } var s = 1.70158; return n * n * ((s + 1) * n - s); }; /*\ * mina.backout [ method ] ** * Backout easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.backout = function (n) { if (n == 0) { return 0; } n = n - 1; var s = 1.70158; return n * n * ((s + 1) * n + s) + 1; }; /*\ * mina.elastic [ method ] ** * Elastic easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.elastic = function (n) { if (n == !!n) { return n; } return Math.pow(2, -10 * n) * Math.sin((n - .075) * (2 * Math.PI) / .3) + 1; }; /*\ * mina.bounce [ method ] ** * Bounce easing - n (number) input 0..1 = (number) output 0..1 \*/ mina.bounce = function (n) { var s = 7.5625, p = 2.75, l; if (n < (1 / p)) { l = s * n * n; } else { if (n < (2 / p)) { n -= (1.5 / p); l = s * n * n + .75; } else { if (n < (2.5 / p)) { n -= (2.25 / p); l = s * n * n + .9375; } else { n -= (2.625 / p); l = s * n * n + .984375; } } } return l; }; window.mina = mina; return mina; })(typeof eve == "undefined" ? function () {} : eve); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. var Snap = (function(root) { Snap.version = "0.3.0"; /*\ * Snap [ method ] ** * Creates a drawing surface or wraps existing SVG element. ** - width (number|string) width of surface - height (number|string) height of surface * or - DOM (SVGElement) element to be wrapped into Snap structure * or - array (array) array of elements (will return set of elements) * or - query (string) CSS query selector = (object) @Element \*/ function Snap(w, h) { if (w) { if (w.tagName) { return wrap(w); } if (is(w, "array") && Snap.set) { return Snap.set.apply(Snap, w); } if (w instanceof Element) { return w; } if (h == null) { w = glob.doc.querySelector(w); return wrap(w); } } w = w == null ? "100%" : w; h = h == null ? "100%" : h; return new Paper(w, h); } Snap.toString = function () { return "Snap v" + this.version; }; Snap._ = {}; var glob = { win: root.window, doc: root.window.document }; Snap._.glob = glob; var has = "hasOwnProperty", Str = String, toFloat = parseFloat, toInt = parseInt, math = Math, mmax = math.max, mmin = math.min, abs = math.abs, pow = math.pow, PI = math.PI, round = math.round, E = "", S = " ", objectToString = Object.prototype.toString, ISURL = /^url\(['"]?([^\)]+?)['"]?\)$/i, colourRegExp = /^\s*((#[a-f\d]{6})|(#[a-f\d]{3})|rgba?\(\s*([\d\.]+%?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+%?(?:\s*,\s*[\d\.]+%?)?)\s*\)|hsba?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?%?)\s*\)|hsla?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?%?)\s*\))\s*$/i, bezierrg = /^(?:cubic-)?bezier\(([^,]+),([^,]+),([^,]+),([^\)]+)\)/, reURLValue = /^url\(#?([^)]+)\)$/, separator = Snap._.separator = /[,\s]+/, whitespace = /[\s]/g, commaSpaces = /[\s]*,[\s]*/, hsrg = {hs: 1, rg: 1}, pathCommand = /([a-z])[\s,]*((-?\d*\.?\d*(?:e[\-+]?\d+)?[\s]*,?[\s]*)+)/ig, tCommand = /([rstm])[\s,]*((-?\d*\.?\d*(?:e[\-+]?\d+)?[\s]*,?[\s]*)+)/ig, pathValues = /(-?\d*\.?\d*(?:e[\-+]?\\d+)?)[\s]*,?[\s]*/ig, idgen = 0, idprefix = "S" + (+new Date).toString(36), ID = function (el) { return (el && el.type ? el.type : E) + idprefix + (idgen++).toString(36); }, xlink = "http://www.w3.org/1999/xlink", xmlns = "http://www.w3.org/2000/svg", hub = {}, URL = Snap.url = function (url) { return "url('#" + url + "')"; }; function $(el, attr) { if (attr) { if (el == "#text") { el = glob.doc.createTextNode(attr.text || ""); } if (typeof el == "string") { el = $(el); } if (typeof attr == "string") { if (attr.substring(0, 6) == "xlink:") { return el.getAttributeNS(xlink, attr.substring(6)); } if (attr.substring(0, 4) == "xml:") { return el.getAttributeNS(xmlns, attr.substring(4)); } return el.getAttribute(attr); } for (var key in attr) if (attr[has](key)) { var val = Str(attr[key]); if (val) { if (key.substring(0, 6) == "xlink:") { el.setAttributeNS(xlink, key.substring(6), val); } else if (key.substring(0, 4) == "xml:") { el.setAttributeNS(xmlns, key.substring(4), val); } else { el.setAttribute(key, val); } } else { el.removeAttribute(key); } } } else { el = glob.doc.createElementNS(xmlns, el); } return el; } Snap._.$ = $; Snap._.id = ID; function getAttrs(el) { var attrs = el.attributes, name, out = {}; for (var i = 0; i < attrs.length; i++) { if (attrs[i].namespaceURI == xlink) { name = "xlink:"; } else { name = ""; } name += attrs[i].name; out[name] = attrs[i].textContent; } return out; } function is(o, type) { type = Str.prototype.toLowerCase.call(type); if (type == "finite") { return isFinite(o); } if (type == "array" && (o instanceof Array || Array.isArray && Array.isArray(o))) { return true; } return (type == "null" && o === null) || (type == typeof o && o !== null) || (type == "object" && o === Object(o)) || objectToString.call(o).slice(8, -1).toLowerCase() == type; } /*\ * Snap.format [ method ] ** * Replaces construction of type `{}` to the corresponding argument ** - token (string) string to format - json (object) object which properties are used as a replacement = (string) formatted string > Usage | // this draws a rectangular shape equivalent to "M10,20h40v50h-40z" | paper.path(Snap.format("M{x},{y}h{dim.width}v{dim.height}h{dim['negative width']}z", { | x: 10, | y: 20, | dim: { | width: 40, | height: 50, | "negative width": -40 | } | })); \*/ Snap.format = (function () { var tokenRegex = /\{([^\}]+)\}/g, objNotationRegex = /(?:(?:^|\.)(.+?)(?=\[|\.|$|\()|\[('|")(.+?)\2\])(\(\))?/g, // matches .xxxxx or ["xxxxx"] to run over object properties replacer = function (all, key, obj) { var res = obj; key.replace(objNotationRegex, function (all, name, quote, quotedName, isFunc) { name = name || quotedName; if (res) { if (name in res) { res = res[name]; } typeof res == "function" && isFunc && (res = res()); } }); res = (res == null || res == obj ? all : res) + ""; return res; }; return function (str, obj) { return Str(str).replace(tokenRegex, function (all, key) { return replacer(all, key, obj); }); }; })(); function clone(obj) { if (typeof obj == "function" || Object(obj) !== obj) { return obj; } var res = new obj.constructor; for (var key in obj) if (obj[has](key)) { res[key] = clone(obj[key]); } return res; } Snap._.clone = clone; function repush(array, item) { for (var i = 0, ii = array.length; i < ii; i++) if (array[i] === item) { return array.push(array.splice(i, 1)[0]); } } function cacher(f, scope, postprocessor) { function newf() { var arg = Array.prototype.slice.call(arguments, 0), args = arg.join("\u2400"), cache = newf.cache = newf.cache || {}, count = newf.count = newf.count || []; if (cache[has](args)) { repush(count, args); return postprocessor ? postprocessor(cache[args]) : cache[args]; } count.length >= 1e3 && delete cache[count.shift()]; count.push(args); cache[args] = f.apply(scope, arg); return postprocessor ? postprocessor(cache[args]) : cache[args]; } return newf; } Snap._.cacher = cacher; function angle(x1, y1, x2, y2, x3, y3) { if (x3 == null) { var x = x1 - x2, y = y1 - y2; if (!x && !y) { return 0; } return (180 + math.atan2(-y, -x) * 180 / PI + 360) % 360; } else { return angle(x1, y1, x3, y3) - angle(x2, y2, x3, y3); } } function rad(deg) { return deg % 360 * PI / 180; } function deg(rad) { return rad * 180 / PI % 360; } function x_y() { return this.x + S + this.y; } function x_y_w_h() { return this.x + S + this.y + S + this.width + " \xd7 " + this.height; } /*\ * Snap.rad [ method ] ** * Transform angle to radians - deg (number) angle in degrees = (number) angle in radians \*/ Snap.rad = rad; /*\ * Snap.deg [ method ] ** * Transform angle to degrees - rad (number) angle in radians = (number) angle in degrees \*/ Snap.deg = deg; /*\ * Snap.angle [ method ] ** * Returns an angle between two or three points > Parameters - x1 (number) x coord of first point - y1 (number) y coord of first point - x2 (number) x coord of second point - y2 (number) y coord of second point - x3 (number) #optional x coord of third point - y3 (number) #optional y coord of third point = (number) angle in degrees \*/ Snap.angle = angle; /*\ * Snap.is [ method ] ** * Handy replacement for the `typeof` operator - o (…) any object or primitive - type (string) name of the type, e.g., `string`, `function`, `number`, etc. = (boolean) `true` if given value is of given type \*/ Snap.is = is; /*\ * Snap.snapTo [ method ] ** * Snaps given value to given grid - values (array|number) given array of values or step of the grid - value (number) value to adjust - tolerance (number) #optional maximum distance to the target value that would trigger the snap. Default is `10`. = (number) adjusted value \*/ Snap.snapTo = function (values, value, tolerance) { tolerance = is(tolerance, "finite") ? tolerance : 10; if (is(values, "array")) { var i = values.length; while (i--) if (abs(values[i] - value) <= tolerance) { return values[i]; } } else { values = +values; var rem = value % values; if (rem < tolerance) { return value - rem; } if (rem > values - tolerance) { return value - rem + values; } } return value; }; // Colour /*\ * Snap.getRGB [ method ] ** * Parses color string as RGB object - color (string) color string in one of the following formats: # * Note that `%` can be used any time: `rgb(20%, 255, 50%)`. = (object) RGB object in the following format: o { o r (number) red, o g (number) green, o b (number) blue, o hex (string) color in HTML/CSS format: #••••••, o error (boolean) true if string can't be parsed o } \*/ Snap.getRGB = cacher(function (colour) { if (!colour || !!((colour = Str(colour)).indexOf("-") + 1)) { return {r: -1, g: -1, b: -1, hex: "none", error: 1, toString: rgbtoString}; } if (colour == "none") { return {r: -1, g: -1, b: -1, hex: "none", toString: rgbtoString}; } !(hsrg[has](colour.toLowerCase().substring(0, 2)) || colour.charAt() == "#") && (colour = toHex(colour)); if (!colour) { return {r: -1, g: -1, b: -1, hex: "none", error: 1, toString: rgbtoString}; } var res, red, green, blue, opacity, t, values, rgb = colour.match(colourRegExp); if (rgb) { if (rgb[2]) { blue = toInt(rgb[2].substring(5), 16); green = toInt(rgb[2].substring(3, 5), 16); red = toInt(rgb[2].substring(1, 3), 16); } if (rgb[3]) { blue = toInt((t = rgb[3].charAt(3)) + t, 16); green = toInt((t = rgb[3].charAt(2)) + t, 16); red = toInt((t = rgb[3].charAt(1)) + t, 16); } if (rgb[4]) { values = rgb[4].split(commaSpaces); red = toFloat(values[0]); values[0].slice(-1) == "%" && (red *= 2.55); green = toFloat(values[1]); values[1].slice(-1) == "%" && (green *= 2.55); blue = toFloat(values[2]); values[2].slice(-1) == "%" && (blue *= 2.55); rgb[1].toLowerCase().slice(0, 4) == "rgba" && (opacity = toFloat(values[3])); values[3] && values[3].slice(-1) == "%" && (opacity /= 100); } if (rgb[5]) { values = rgb[5].split(commaSpaces); red = toFloat(values[0]); values[0].slice(-1) == "%" && (red /= 100); green = toFloat(values[1]); values[1].slice(-1) == "%" && (green /= 100); blue = toFloat(values[2]); values[2].slice(-1) == "%" && (blue /= 100); (values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360); rgb[1].toLowerCase().slice(0, 4) == "hsba" && (opacity = toFloat(values[3])); values[3] && values[3].slice(-1) == "%" && (opacity /= 100); return Snap.hsb2rgb(red, green, blue, opacity); } if (rgb[6]) { values = rgb[6].split(commaSpaces); red = toFloat(values[0]); values[0].slice(-1) == "%" && (red /= 100); green = toFloat(values[1]); values[1].slice(-1) == "%" && (green /= 100); blue = toFloat(values[2]); values[2].slice(-1) == "%" && (blue /= 100); (values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360); rgb[1].toLowerCase().slice(0, 4) == "hsla" && (opacity = toFloat(values[3])); values[3] && values[3].slice(-1) == "%" && (opacity /= 100); return Snap.hsl2rgb(red, green, blue, opacity); } red = mmin(math.round(red), 255); green = mmin(math.round(green), 255); blue = mmin(math.round(blue), 255); opacity = mmin(mmax(opacity, 0), 1); rgb = {r: red, g: green, b: blue, toString: rgbtoString}; rgb.hex = "#" + (16777216 | blue | (green << 8) | (red << 16)).toString(16).slice(1); rgb.opacity = is(opacity, "finite") ? opacity : 1; return rgb; } return {r: -1, g: -1, b: -1, hex: "none", error: 1, toString: rgbtoString}; }, Snap); // SIERRA It seems odd that the following 3 conversion methods are not expressed as .this2that(), like the others. /*\ * Snap.hsb [ method ] ** * Converts HSB values to a hex representation of the color - h (number) hue - s (number) saturation - b (number) value or brightness = (string) hex representation of the color \*/ Snap.hsb = cacher(function (h, s, b) { return Snap.hsb2rgb(h, s, b).hex; }); /*\ * Snap.hsl [ method ] ** * Converts HSL values to a hex representation of the color - h (number) hue - s (number) saturation - l (number) luminosity = (string) hex representation of the color \*/ Snap.hsl = cacher(function (h, s, l) { return Snap.hsl2rgb(h, s, l).hex; }); /*\ * Snap.rgb [ method ] ** * Converts RGB values to a hex representation of the color - r (number) red - g (number) green - b (number) blue = (string) hex representation of the color \*/ Snap.rgb = cacher(function (r, g, b, o) { if (is(o, "finite")) { var round = math.round; return "rgba(" + [round(r), round(g), round(b), +o.toFixed(2)] + ")"; } return "#" + (16777216 | b | (g << 8) | (r << 16)).toString(16).slice(1); }); var toHex = function (color) { var i = glob.doc.getElementsByTagName("head")[0] || glob.doc.getElementsByTagName("svg")[0], red = "rgb(255, 0, 0)"; toHex = cacher(function (color) { if (color.toLowerCase() == "red") { return red; } i.style.color = red; i.style.color = color; var out = glob.doc.defaultView.getComputedStyle(i, E).getPropertyValue("color"); return out == red ? null : out; }); return toHex(color); }, hsbtoString = function () { return "hsb(" + [this.h, this.s, this.b] + ")"; }, hsltoString = function () { return "hsl(" + [this.h, this.s, this.l] + ")"; }, rgbtoString = function () { return this.opacity == 1 || this.opacity == null ? this.hex : "rgba(" + [this.r, this.g, this.b, this.opacity] + ")"; }, prepareRGB = function (r, g, b) { if (g == null && is(r, "object") && "r" in r && "g" in r && "b" in r) { b = r.b; g = r.g; r = r.r; } if (g == null && is(r, string)) { var clr = Snap.getRGB(r); r = clr.r; g = clr.g; b = clr.b; } if (r > 1 || g > 1 || b > 1) { r /= 255; g /= 255; b /= 255; } return [r, g, b]; }, packageRGB = function (r, g, b, o) { r = math.round(r * 255); g = math.round(g * 255); b = math.round(b * 255); var rgb = { r: r, g: g, b: b, opacity: is(o, "finite") ? o : 1, hex: Snap.rgb(r, g, b), toString: rgbtoString }; is(o, "finite") && (rgb.opacity = o); return rgb; }; /*\ * Snap.color [ method ] ** * Parses the color string and returns an object featuring the color's component values - clr (string) color string in one of the supported formats (see @Snap.getRGB) = (object) Combined RGB/HSB object in the following format: o { o r (number) red, o g (number) green, o b (number) blue, o hex (string) color in HTML/CSS format: #••••••, o error (boolean) `true` if string can't be parsed, o h (number) hue, o s (number) saturation, o v (number) value (brightness), o l (number) lightness o } \*/ Snap.color = function (clr) { var rgb; if (is(clr, "object") && "h" in clr && "s" in clr && "b" in clr) { rgb = Snap.hsb2rgb(clr); clr.r = rgb.r; clr.g = rgb.g; clr.b = rgb.b; clr.opacity = 1; clr.hex = rgb.hex; } else if (is(clr, "object") && "h" in clr && "s" in clr && "l" in clr) { rgb = Snap.hsl2rgb(clr); clr.r = rgb.r; clr.g = rgb.g; clr.b = rgb.b; clr.opacity = 1; clr.hex = rgb.hex; } else { if (is(clr, "string")) { clr = Snap.getRGB(clr); } if (is(clr, "object") && "r" in clr && "g" in clr && "b" in clr && !("error" in clr)) { rgb = Snap.rgb2hsl(clr); clr.h = rgb.h; clr.s = rgb.s; clr.l = rgb.l; rgb = Snap.rgb2hsb(clr); clr.v = rgb.b; } else { clr = {hex: "none"}; clr.r = clr.g = clr.b = clr.h = clr.s = clr.v = clr.l = -1; clr.error = 1; } } clr.toString = rgbtoString; return clr; }; /*\ * Snap.hsb2rgb [ method ] ** * Converts HSB values to an RGB object - h (number) hue - s (number) saturation - v (number) value or brightness = (object) RGB object in the following format: o { o r (number) red, o g (number) green, o b (number) blue, o hex (string) color in HTML/CSS format: #•••••• o } \*/ Snap.hsb2rgb = function (h, s, v, o) { if (is(h, "object") && "h" in h && "s" in h && "b" in h) { v = h.b; s = h.s; h = h.h; o = h.o; } h *= 360; var R, G, B, X, C; h = (h % 360) / 60; C = v * s; X = C * (1 - abs(h % 2 - 1)); R = G = B = v - C; h = ~~h; R += [C, X, 0, 0, X, C][h]; G += [X, C, C, X, 0, 0][h]; B += [0, 0, X, C, C, X][h]; return packageRGB(R, G, B, o); }; /*\ * Snap.hsl2rgb [ method ] ** * Converts HSL values to an RGB object - h (number) hue - s (number) saturation - l (number) luminosity = (object) RGB object in the following format: o { o r (number) red, o g (number) green, o b (number) blue, o hex (string) color in HTML/CSS format: #•••••• o } \*/ Snap.hsl2rgb = function (h, s, l, o) { if (is(h, "object") && "h" in h && "s" in h && "l" in h) { l = h.l; s = h.s; h = h.h; } if (h > 1 || s > 1 || l > 1) { h /= 360; s /= 100; l /= 100; } h *= 360; var R, G, B, X, C; h = (h % 360) / 60; C = 2 * s * (l < .5 ? l : 1 - l); X = C * (1 - abs(h % 2 - 1)); R = G = B = l - C / 2; h = ~~h; R += [C, X, 0, 0, X, C][h]; G += [X, C, C, X, 0, 0][h]; B += [0, 0, X, C, C, X][h]; return packageRGB(R, G, B, o); }; /*\ * Snap.rgb2hsb [ method ] ** * Converts RGB values to an HSB object - r (number) red - g (number) green - b (number) blue = (object) HSB object in the following format: o { o h (number) hue, o s (number) saturation, o b (number) brightness o } \*/ Snap.rgb2hsb = function (r, g, b) { b = prepareRGB(r, g, b); r = b[0]; g = b[1]; b = b[2]; var H, S, V, C; V = mmax(r, g, b); C = V - mmin(r, g, b); H = (C == 0 ? null : V == r ? (g - b) / C : V == g ? (b - r) / C + 2 : (r - g) / C + 4 ); H = ((H + 360) % 6) * 60 / 360; S = C == 0 ? 0 : C / V; return {h: H, s: S, b: V, toString: hsbtoString}; }; /*\ * Snap.rgb2hsl [ method ] ** * Converts RGB values to an HSL object - r (number) red - g (number) green - b (number) blue = (object) HSL object in the following format: o { o h (number) hue, o s (number) saturation, o l (number) luminosity o } \*/ Snap.rgb2hsl = function (r, g, b) { b = prepareRGB(r, g, b); r = b[0]; g = b[1]; b = b[2]; var H, S, L, M, m, C; M = mmax(r, g, b); m = mmin(r, g, b); C = M - m; H = (C == 0 ? null : M == r ? (g - b) / C : M == g ? (b - r) / C + 2 : (r - g) / C + 4); H = ((H + 360) % 6) * 60 / 360; L = (M + m) / 2; S = (C == 0 ? 0 : L < .5 ? C / (2 * L) : C / (2 - 2 * L)); return {h: H, s: S, l: L, toString: hsltoString}; }; // Transformations // SIERRA Snap.parsePathString(): By _array of arrays,_ I assume you mean a format like this for two separate segments? [ ["M10,10","L90,90"], ["M90,10","L10,90"] ] Otherwise how is each command structured? /*\ * Snap.parsePathString [ method ] ** * Utility method ** * Parses given path string into an array of arrays of path segments - pathString (string|array) path string or array of segments (in the last case it is returned straight away) = (array) array of segments \*/ Snap.parsePathString = function (pathString) { if (!pathString) { return null; } var pth = Snap.path(pathString); if (pth.arr) { return Snap.path.clone(pth.arr); } var paramCounts = {a: 7, c: 6, o: 2, h: 1, l: 2, m: 2, r: 4, q: 4, s: 4, t: 2, v: 1, u: 3, z: 0}, data = []; if (is(pathString, "array") && is(pathString[0], "array")) { // rough assumption data = Snap.path.clone(pathString); } if (!data.length) { Str(pathString).replace(pathCommand, function (a, b, c) { var params = [], name = b.toLowerCase(); c.replace(pathValues, function (a, b) { b && params.push(+b); }); if (name == "m" && params.length > 2) { data.push([b].concat(params.splice(0, 2))); name = "l"; b = b == "m" ? "l" : "L"; } if (name == "o" && params.length == 1) { data.push([b, params[0]]); } if (name == "r") { data.push([b].concat(params)); } else while (params.length >= paramCounts[name]) { data.push([b].concat(params.splice(0, paramCounts[name]))); if (!paramCounts[name]) { break; } } }); } data.toString = Snap.path.toString; pth.arr = Snap.path.clone(data); return data; }; /*\ * Snap.parseTransformString [ method ] ** * Utility method ** * Parses given transform string into an array of transformations - TString (string|array) transform string or array of transformations (in the last case it is returned straight away) = (array) array of transformations \*/ var parseTransformString = Snap.parseTransformString = function (TString) { if (!TString) { return null; } var paramCounts = {r: 3, s: 4, t: 2, m: 6}, data = []; if (is(TString, "array") && is(TString[0], "array")) { // rough assumption data = Snap.path.clone(TString); } if (!data.length) { Str(TString).replace(tCommand, function (a, b, c) { var params = [], name = b.toLowerCase(); c.replace(pathValues, function (a, b) { b && params.push(+b); }); data.push([b].concat(params)); }); } data.toString = Snap.path.toString; return data; }; function svgTransform2string(tstr) { var res = []; tstr = tstr.replace(/(?:^|\s)(\w+)\(([^)]+)\)/g, function (all, name, params) { params = params.split(/\s*,\s*|\s+/); if (name == "rotate" && params.length == 1) { params.push(0, 0); } if (name == "scale") { if (params.length > 2) { params = params.slice(0, 2); } else if (params.length == 2) { params.push(0, 0); } if (params.length == 1) { params.push(params[0], 0, 0); } } if (name == "skewX") { res.push(["m", 1, 0, math.tan(rad(params[0])), 1, 0, 0]); } else if (name == "skewY") { res.push(["m", 1, math.tan(rad(params[0])), 0, 1, 0, 0]); } else { res.push([name.charAt(0)].concat(params)); } return all; }); return res; } Snap._.svgTransform2string = svgTransform2string; Snap._.rgTransform = /^[a-z][\s]*-?\.?\d/i; function transform2matrix(tstr, bbox) { var tdata = parseTransformString(tstr), m = new Snap.Matrix; if (tdata) { for (var i = 0, ii = tdata.length; i < ii; i++) { var t = tdata[i], tlen = t.length, command = Str(t[0]).toLowerCase(), absolute = t[0] != command, inver = absolute ? m.invert() : 0, x1, y1, x2, y2, bb; if (command == "t" && tlen == 2){ m.translate(t[1], 0); } else if (command == "t" && tlen == 3) { if (absolute) { x1 = inver.x(0, 0); y1 = inver.y(0, 0); x2 = inver.x(t[1], t[2]); y2 = inver.y(t[1], t[2]); m.translate(x2 - x1, y2 - y1); } else { m.translate(t[1], t[2]); } } else if (command == "r") { if (tlen == 2) { bb = bb || bbox; m.rotate(t[1], bb.x + bb.width / 2, bb.y + bb.height / 2); } else if (tlen == 4) { if (absolute) { x2 = inver.x(t[2], t[3]); y2 = inver.y(t[2], t[3]); m.rotate(t[1], x2, y2); } else { m.rotate(t[1], t[2], t[3]); } } } else if (command == "s") { if (tlen == 2 || tlen == 3) { bb = bb || bbox; m.scale(t[1], t[tlen - 1], bb.x + bb.width / 2, bb.y + bb.height / 2); } else if (tlen == 4) { if (absolute) { x2 = inver.x(t[2], t[3]); y2 = inver.y(t[2], t[3]); m.scale(t[1], t[1], x2, y2); } else { m.scale(t[1], t[1], t[2], t[3]); } } else if (tlen == 5) { if (absolute) { x2 = inver.x(t[3], t[4]); y2 = inver.y(t[3], t[4]); m.scale(t[1], t[2], x2, y2); } else { m.scale(t[1], t[2], t[3], t[4]); } } } else if (command == "m" && tlen == 7) { m.add(t[1], t[2], t[3], t[4], t[5], t[6]); } } } return m; } Snap._.transform2matrix = transform2matrix; Snap._unit2px = unit2px; var contains = glob.doc.contains || glob.doc.compareDocumentPosition ? function (a, b) { var adown = a.nodeType == 9 ? a.documentElement : a, bup = b && b.parentNode; return a == bup || !!(bup && bup.nodeType == 1 && ( adown.contains ? adown.contains(bup) : a.compareDocumentPosition && a.compareDocumentPosition(bup) & 16 )); } : function (a, b) { if (b) { while (b) { b = b.parentNode; if (b == a) { return true; } } } return false; }; function getSomeDefs(el) { var p = (el.node.ownerSVGElement && wrap(el.node.ownerSVGElement)) || (el.node.parentNode && wrap(el.node.parentNode)) || Snap.select("svg") || Snap(0, 0), pdefs = p.select("defs"), defs = pdefs == null ? false : pdefs.node; if (!defs) { defs = make("defs", p.node).node; } return defs; } function getSomeSVG(el) { return el.node.ownerSVGElement && wrap(el.node.ownerSVGElement) || Snap.select("svg"); } Snap._.getSomeDefs = getSomeDefs; Snap._.getSomeSVG = getSomeSVG; function unit2px(el, name, value) { var svg = getSomeSVG(el).node, out = {}, mgr = svg.querySelector(".svg---mgr"); if (!mgr) { mgr = $("rect"); $(mgr, {x: -9e9, y: -9e9, width: 10, height: 10, "class": "svg---mgr", fill: "none"}); svg.appendChild(mgr); } function getW(val) { if (val == null) { return E; } if (val == +val) { return val; } $(mgr, {width: val}); try { return mgr.getBBox().width; } catch (e) { return 0; } } function getH(val) { if (val == null) { return E; } if (val == +val) { return val; } $(mgr, {height: val}); try { return mgr.getBBox().height; } catch (e) { return 0; } } function set(nam, f) { if (name == null) { out[nam] = f(el.attr(nam) || 0); } else if (nam == name) { out = f(value == null ? el.attr(nam) || 0 : value); } } switch (el.type) { case "rect": set("rx", getW); set("ry", getH); case "image": set("width", getW); set("height", getH); case "text": set("x", getW); set("y", getH); break; case "circle": set("cx", getW); set("cy", getH); set("r", getW); break; case "ellipse": set("cx", getW); set("cy", getH); set("rx", getW); set("ry", getH); break; case "line": set("x1", getW); set("x2", getW); set("y1", getH); set("y2", getH); break; case "marker": set("refX", getW); set("markerWidth", getW); set("refY", getH); set("markerHeight", getH); break; case "radialGradient": set("fx", getW); set("fy", getH); break; case "tspan": set("dx", getW); set("dy", getH); break; default: set(name, getW); } svg.removeChild(mgr); return out; } /*\ * Snap.select [ method ] ** * Wraps a DOM element specified by CSS selector as @Element - query (string) CSS selector of the element = (Element) the current element \*/ Snap.select = function (query) { query = Str(query).replace(/([^\\]):/g, "$1\\:"); return wrap(glob.doc.querySelector(query)); }; /*\ * Snap.selectAll [ method ] ** * Wraps DOM elements specified by CSS selector as set or array of @Element - query (string) CSS selector of the element = (Element) the current element \*/ Snap.selectAll = function (query) { var nodelist = glob.doc.querySelectorAll(query), set = (Snap.set || Array)(); for (var i = 0; i < nodelist.length; i++) { set.push(wrap(nodelist[i])); } return set; }; function add2group(list) { if (!is(list, "array")) { list = Array.prototype.slice.call(arguments, 0); } var i = 0, j = 0, node = this.node; while (this[i]) delete this[i++]; for (i = 0; i < list.length; i++) { if (list[i].type == "set") { list[i].forEach(function (el) { node.appendChild(el.node); }); } else { node.appendChild(list[i].node); } } var children = node.childNodes; for (i = 0; i < children.length; i++) { this[j++] = wrap(children[i]); } return this; } // Hub garbage collector every 10s setInterval(function () { for (var key in hub) if (hub[has](key)) { var el = hub[key], node = el.node; if (el.type != "svg" && !node.ownerSVGElement || el.type == "svg" && (!node.parentNode || "ownerSVGElement" in node.parentNode && !node.ownerSVGElement)) { delete hub[key]; } } }, 1e4); function Element(el) { if (el.snap in hub) { return hub[el.snap]; } var svg; try { svg = el.ownerSVGElement; } catch(e) {} /*\ * Element.node [ property (object) ] ** * Gives you a reference to the DOM object, so you can assign event handlers or just mess around. > Usage | // draw a circle at coordinate 10,10 with radius of 10 | var c = paper.circle(10, 10, 10); | c.node.onclick = function () { | c.attr("fill", "red"); | }; \*/ this.node = el; if (svg) { this.paper = new Paper(svg); } /*\ * Element.type [ property (string) ] ** * SVG tag name of the given element. \*/ this.type = el.tagName; var id = this.id = ID(this); this.anims = {}; this._ = { transform: [] }; el.snap = id; hub[id] = this; if (this.type == "g") { this.add = add2group; } if (this.type in {g: 1, mask: 1, pattern: 1, symbol: 1}) { for (var method in Paper.prototype) if (Paper.prototype[has](method)) { this[method] = Paper.prototype[method]; } } } /*\ * Element.attr [ method ] ** * Gets or sets given attributes of the element. ** - params (object) contains key-value pairs of attributes you want to set * or - param (string) name of the attribute = (Element) the current element * or = (string) value of attribute > Usage | el.attr({ | fill: "#fc0", | stroke: "#000", | strokeWidth: 2, // CamelCase... | "fill-opacity": 0.5, // or dash-separated names | width: "*=2" // prefixed values | }); | console.log(el.attr("fill")); // #fc0 * Prefixed values in format `"+=10"` supported. All four operations * (`+`, `-`, `*` and `/`) could be used. Optionally you can use units for `+` * and `-`: `"+=2em"`. \*/ Element.prototype.attr = function (params, value) { var el = this, node = el.node; if (!params) { return el; } if (is(params, "string")) { if (arguments.length > 1) { var json = {}; json[params] = value; params = json; } else { return eve("snap.util.getattr." + params, el).firstDefined(); } } for (var att in params) { if (params[has](att)) { eve("snap.util.attr." + att, el, params[att]); } } return el; }; /*\ * Snap.parse [ method ] ** * Parses SVG fragment and converts it into a @Fragment ** - svg (string) SVG string = (Fragment) the @Fragment \*/ Snap.parse = function (svg) { var f = glob.doc.createDocumentFragment(), full = true, div = glob.doc.createElement("div"); svg = Str(svg); if (!svg.match(/^\s*<\s*svg(?:\s|>)/)) { svg = "" + svg + ""; full = false; } div.innerHTML = svg; svg = div.getElementsByTagName("svg")[0]; if (svg) { if (full) { f = svg; } else { while (svg.firstChild) { f.appendChild(svg.firstChild); } div.innerHTML = E; } } return new Fragment(f); }; function Fragment(frag) { this.node = frag; } // SIERRA Snap.fragment() could especially use a code example /*\ * Snap.fragment [ method ] ** * Creates a DOM fragment from a given list of elements or strings ** - varargs (…) SVG string = (Fragment) the @Fragment \*/ Snap.fragment = function () { var args = Array.prototype.slice.call(arguments, 0), f = glob.doc.createDocumentFragment(); for (var i = 0, ii = args.length; i < ii; i++) { var item = args[i]; if (item.node && item.node.nodeType) { f.appendChild(item.node); } if (item.nodeType) { f.appendChild(item); } if (typeof item == "string") { f.appendChild(Snap.parse(item).node); } } return new Fragment(f); }; function make(name, parent) { var res = $(name); parent.appendChild(res); var el = wrap(res); return el; } function Paper(w, h) { var res, desc, defs, proto = Paper.prototype; if (w && w.tagName == "svg") { if (w.snap in hub) { return hub[w.snap]; } var doc = w.ownerDocument; res = new Element(w); desc = w.getElementsByTagName("desc")[0]; defs = w.getElementsByTagName("defs")[0]; if (!desc) { desc = $("desc"); desc.appendChild(doc.createTextNode("Created with Snap")); res.node.appendChild(desc); } if (!defs) { defs = $("defs"); res.node.appendChild(defs); } res.defs = defs; for (var key in proto) if (proto[has](key)) { res[key] = proto[key]; } res.paper = res.root = res; } else { res = make("svg", glob.doc.body); $(res.node, { height: h, version: 1.1, width: w, xmlns: xmlns }); } return res; } function wrap(dom) { if (!dom) { return dom; } if (dom instanceof Element || dom instanceof Fragment) { return dom; } if (dom.tagName && dom.tagName.toLowerCase() == "svg") { return new Paper(dom); } if (dom.tagName && dom.tagName.toLowerCase() == "object" && dom.type == "image/svg+xml") { return new Paper(dom.contentDocument.getElementsByTagName("svg")[0]); } return new Element(dom); } Snap._.make = make; Snap._.wrap = wrap; /*\ * Paper.el [ method ] ** * Creates an element on paper with a given name and no attributes ** - name (string) tag name - attr (object) attributes = (Element) the current element > Usage | var c = paper.circle(10, 10, 10); // is the same as... | var c = paper.el("circle").attr({ | cx: 10, | cy: 10, | r: 10 | }); | // and the same as | var c = paper.el("circle", { | cx: 10, | cy: 10, | r: 10 | }); \*/ Paper.prototype.el = function (name, attr) { var el = make(name, this.node); attr && el.attr(attr); return el; }; // default eve.on("snap.util.getattr", function () { var att = eve.nt(); att = att.substring(att.lastIndexOf(".") + 1); var css = att.replace(/[A-Z]/g, function (letter) { return "-" + letter.toLowerCase(); }); if (cssAttr[has](css)) { return this.node.ownerDocument.defaultView.getComputedStyle(this.node, null).getPropertyValue(css); } else { return $(this.node, att); } }); var cssAttr = { "alignment-baseline": 0, "baseline-shift": 0, "clip": 0, "clip-path": 0, "clip-rule": 0, "color": 0, "color-interpolation": 0, "color-interpolation-filters": 0, "color-profile": 0, "color-rendering": 0, "cursor": 0, "direction": 0, "display": 0, "dominant-baseline": 0, "enable-background": 0, "fill": 0, "fill-opacity": 0, "fill-rule": 0, "filter": 0, "flood-color": 0, "flood-opacity": 0, "font": 0, "font-family": 0, "font-size": 0, "font-size-adjust": 0, "font-stretch": 0, "font-style": 0, "font-variant": 0, "font-weight": 0, "glyph-orientation-horizontal": 0, "glyph-orientation-vertical": 0, "image-rendering": 0, "kerning": 0, "letter-spacing": 0, "lighting-color": 0, "marker": 0, "marker-end": 0, "marker-mid": 0, "marker-start": 0, "mask": 0, "opacity": 0, "overflow": 0, "pointer-events": 0, "shape-rendering": 0, "stop-color": 0, "stop-opacity": 0, "stroke": 0, "stroke-dasharray": 0, "stroke-dashoffset": 0, "stroke-linecap": 0, "stroke-linejoin": 0, "stroke-miterlimit": 0, "stroke-opacity": 0, "stroke-width": 0, "text-anchor": 0, "text-decoration": 0, "text-rendering": 0, "unicode-bidi": 0, "visibility": 0, "word-spacing": 0, "writing-mode": 0 }; eve.on("snap.util.attr", function (value) { var att = eve.nt(), attr = {}; att = att.substring(att.lastIndexOf(".") + 1); attr[att] = value; var style = att.replace(/-(\w)/gi, function (all, letter) { return letter.toUpperCase(); }), css = att.replace(/[A-Z]/g, function (letter) { return "-" + letter.toLowerCase(); }); if (cssAttr[has](css)) { this.node.style[style] = value == null ? E : value; } else { $(this.node, attr); } }); (function (proto) {}(Paper.prototype)); // simple ajax /*\ * Snap.ajax [ method ] ** * Simple implementation of Ajax ** - url (string) URL - postData (object|string) data for post request - callback (function) callback - scope (object) #optional scope of callback * or - url (string) URL - callback (function) callback - scope (object) #optional scope of callback = (XMLHttpRequest) the XMLHttpRequest object, just in case \*/ Snap.ajax = function (url, postData, callback, scope){ var req = new XMLHttpRequest, id = ID(); if (req) { if (is(postData, "function")) { scope = callback; callback = postData; postData = null; } else if (is(postData, "object")) { var pd = []; for (var key in postData) if (postData.hasOwnProperty(key)) { pd.push(encodeURIComponent(key) + "=" + encodeURIComponent(postData[key])); } postData = pd.join("&"); } req.open((postData ? "POST" : "GET"), url, true); if (postData) { req.setRequestHeader("X-Requested-With", "XMLHttpRequest"); req.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); } if (callback) { eve.once("snap.ajax." + id + ".0", callback); eve.once("snap.ajax." + id + ".200", callback); eve.once("snap.ajax." + id + ".304", callback); } req.onreadystatechange = function() { if (req.readyState != 4) return; eve("snap.ajax." + id + "." + req.status, scope, req); }; if (req.readyState == 4) { return req; } req.send(postData); return req; } }; /*\ * Snap.load [ method ] ** * Loads external SVG file as a @Fragment (see @Snap.ajax for more advanced AJAX) ** - url (string) URL - callback (function) callback - scope (object) #optional scope of callback \*/ Snap.load = function (url, callback, scope) { Snap.ajax(url, function (req) { var f = Snap.parse(req.responseText); scope ? callback.call(scope, f) : callback(f); }); }; var getOffset = function (elem) { var box = elem.getBoundingClientRect(), doc = elem.ownerDocument, body = doc.body, docElem = doc.documentElement, clientTop = docElem.clientTop || body.clientTop || 0, clientLeft = docElem.clientLeft || body.clientLeft || 0, top = box.top + (g.win.pageYOffset || docElem.scrollTop || body.scrollTop ) - clientTop, left = box.left + (g.win.pageXOffset || docElem.scrollLeft || body.scrollLeft) - clientLeft; return { y: top, x: left }; }; /*\ * Snap.getElementByPoint [ method ] ** * Returns you topmost element under given point. ** = (object) Snap element object - x (number) x coordinate from the top left corner of the window - y (number) y coordinate from the top left corner of the window > Usage | Snap.getElementByPoint(mouseX, mouseY).attr({stroke: "#f00"}); \*/ Snap.getElementByPoint = function (x, y) { var paper = this, svg = paper.canvas, target = glob.doc.elementFromPoint(x, y); if (glob.win.opera && target.tagName == "svg") { var so = getOffset(target), sr = target.createSVGRect(); sr.x = x - so.x; sr.y = y - so.y; sr.width = sr.height = 1; var hits = target.getIntersectionList(sr, null); if (hits.length) { target = hits[hits.length - 1]; } } if (!target) { return null; } return wrap(target); }; /*\ * Snap.plugin [ method ] ** * Let you write plugins. You pass in a function with four arguments, like this: | Snap.plugin(function (Snap, Element, Paper, global, Fragment) { | Snap.newmethod = function () {}; | Element.prototype.newmethod = function () {}; | Paper.prototype.newmethod = function () {}; | }); * Inside the function you have access to all main objects (and their * prototypes). This allow you to extend anything you want. ** - f (function) your plugin body \*/ Snap.plugin = function (f) { f(Snap, Element, Paper, glob, Fragment); }; glob.win.Snap = Snap; return Snap; }(window || this)); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var elproto = Element.prototype, is = Snap.is, Str = String, unit2px = Snap._unit2px, $ = Snap._.$, make = Snap._.make, getSomeDefs = Snap._.getSomeDefs, has = "hasOwnProperty", wrap = Snap._.wrap; /*\ * Element.getBBox [ method ] ** * Returns the bounding box descriptor for the given element ** = (object) bounding box descriptor: o { o cx: (number) x of the center, o cy: (number) x of the center, o h: (number) height, o height: (number) height, o path: (string) path command for the box, o r0: (number) radius of a circle that fully encloses the box, o r1: (number) radius of the smallest circle that can be enclosed, o r2: (number) radius of the largest circle that can be enclosed, o vb: (string) box as a viewbox command, o w: (number) width, o width: (number) width, o x2: (number) x of the right side, o x: (number) x of the left side, o y2: (number) y of the bottom edge, o y: (number) y of the top edge o } \*/ elproto.getBBox = function (isWithoutTransform) { if (!Snap.Matrix || !Snap.path) { return this.node.getBBox(); } var el = this, m = new Snap.Matrix; if (el.removed) { return Snap._.box(); } while (el.type == "use") { if (!isWithoutTransform) { m = m.add(el.transform().localMatrix.translate(el.attr("x") || 0, el.attr("y") || 0)); } if (el.original) { el = el.original; } else { var href = el.attr("xlink:href"); el = el.original = el.node.ownerDocument.getElementById(href.substring(href.indexOf("#") + 1)); } } var _ = el._, pathfinder = Snap.path.get[el.type] || Snap.path.get.deflt; try { if (isWithoutTransform) { _.bboxwt = pathfinder ? Snap.path.getBBox(el.realPath = pathfinder(el)) : Snap._.box(el.node.getBBox()); return Snap._.box(_.bboxwt); } else { el.realPath = pathfinder(el); el.matrix = el.transform().localMatrix; _.bbox = Snap.path.getBBox(Snap.path.map(el.realPath, m.add(el.matrix))); return Snap._.box(_.bbox); } } catch (e) { // Firefox doesn’t give you bbox of hidden element return Snap._.box(); } }; var propString = function () { return this.string; }; function extractTransform(el, tstr) { if (tstr == null) { var doReturn = true; if (el.type == "linearGradient" || el.type == "radialGradient") { tstr = el.node.getAttribute("gradientTransform"); } else if (el.type == "pattern") { tstr = el.node.getAttribute("patternTransform"); } else { tstr = el.node.getAttribute("transform"); } if (!tstr) { return new Snap.Matrix; } tstr = Snap._.svgTransform2string(tstr); } else { if (!Snap._.rgTransform.test(tstr)) { tstr = Snap._.svgTransform2string(tstr); } else { tstr = Str(tstr).replace(/\.{3}|\u2026/g, el._.transform || E); } if (is(tstr, "array")) { tstr = Snap.path ? Snap.path.toString.call(tstr) : Str(tstr); } el._.transform = tstr; } var m = Snap._.transform2matrix(tstr, el.getBBox(1)); if (doReturn) { return m; } else { el.matrix = m; } } /*\ * Element.transform [ method ] ** * Gets or sets transformation of the element ** - tstr (string) transform string in Snap or SVG format = (Element) the current element * or = (object) transformation descriptor: o { o string (string) transform string, o globalMatrix (Matrix) matrix of all transformations applied to element or its parents, o localMatrix (Matrix) matrix of transformations applied only to the element, o diffMatrix (Matrix) matrix of difference between global and local transformations, o global (string) global transformation as string, o local (string) local transformation as string, o toString (function) returns `string` property o } \*/ elproto.transform = function (tstr) { var _ = this._; if (tstr == null) { var papa = this, global = new Snap.Matrix(this.node.getCTM()), local = extractTransform(this), ms = [local], m = new Snap.Matrix, i, localString = local.toTransformString(), string = Str(local) == Str(this.matrix) ? Str(_.transform) : localString; while (papa.type != "svg" && (papa = papa.parent())) { ms.push(extractTransform(papa)); } i = ms.length; while (i--) { m.add(ms[i]); } return { string: string, globalMatrix: global, totalMatrix: m, localMatrix: local, diffMatrix: global.clone().add(local.invert()), global: global.toTransformString(), total: m.toTransformString(), local: localString, toString: propString }; } if (tstr instanceof Snap.Matrix) { this.matrix = tstr; this._.transform = tstr.toTransformString(); } else { extractTransform(this, tstr); } if (this.node) { if (this.type == "linearGradient" || this.type == "radialGradient") { $(this.node, {gradientTransform: this.matrix}); } else if (this.type == "pattern") { $(this.node, {patternTransform: this.matrix}); } else { $(this.node, {transform: this.matrix}); } } return this; }; /*\ * Element.parent [ method ] ** * Returns the element's parent ** = (Element) the parent element \*/ elproto.parent = function () { return wrap(this.node.parentNode); }; /*\ * Element.append [ method ] ** * Appends the given element to current one ** - el (Element|Set) element to append = (Element) the parent element \*/ /*\ * Element.add [ method ] ** * See @Element.append \*/ elproto.append = elproto.add = function (el) { if (el) { if (el.type == "set") { var it = this; el.forEach(function (el) { it.add(el); }); return this; } el = wrap(el); this.node.appendChild(el.node); el.paper = this.paper; } return this; }; /*\ * Element.appendTo [ method ] ** * Appends the current element to the given one ** - el (Element) parent element to append to = (Element) the child element \*/ elproto.appendTo = function (el) { if (el) { el = wrap(el); el.append(this); } return this; }; /*\ * Element.prepend [ method ] ** * Prepends the given element to the current one ** - el (Element) element to prepend = (Element) the parent element \*/ elproto.prepend = function (el) { if (el) { if (el.type == "set") { var it = this, first; el.forEach(function (el) { if (first) { first.after(el); } else { it.prepend(el); } first = el; }); return this; } el = wrap(el); var parent = el.parent(); this.node.insertBefore(el.node, this.node.firstChild); this.add && this.add(); el.paper = this.paper; this.parent() && this.parent().add(); parent && parent.add(); } return this; }; /*\ * Element.prependTo [ method ] ** * Prepends the current element to the given one ** - el (Element) parent element to prepend to = (Element) the child element \*/ elproto.prependTo = function (el) { el = wrap(el); el.prepend(this); return this; }; /*\ * Element.before [ method ] ** * Inserts given element before the current one ** - el (Element) element to insert = (Element) the parent element \*/ elproto.before = function (el) { if (el.type == "set") { var it = this; el.forEach(function (el) { var parent = el.parent(); it.node.parentNode.insertBefore(el.node, it.node); parent && parent.add(); }); this.parent().add(); return this; } el = wrap(el); var parent = el.parent(); this.node.parentNode.insertBefore(el.node, this.node); this.parent() && this.parent().add(); parent && parent.add(); el.paper = this.paper; return this; }; /*\ * Element.after [ method ] ** * Inserts given element after the current one ** - el (Element) element to insert = (Element) the parent element \*/ elproto.after = function (el) { el = wrap(el); var parent = el.parent(); if (this.node.nextSibling) { this.node.parentNode.insertBefore(el.node, this.node.nextSibling); } else { this.node.parentNode.appendChild(el.node); } this.parent() && this.parent().add(); parent && parent.add(); el.paper = this.paper; return this; }; /*\ * Element.insertBefore [ method ] ** * Inserts the element after the given one ** - el (Element) element next to whom insert to = (Element) the parent element \*/ elproto.insertBefore = function (el) { el = wrap(el); var parent = this.parent(); el.node.parentNode.insertBefore(this.node, el.node); this.paper = el.paper; parent && parent.add(); el.parent() && el.parent().add(); return this; }; /*\ * Element.insertAfter [ method ] ** * Inserts the element after the given one ** - el (Element) element next to whom insert to = (Element) the parent element \*/ elproto.insertAfter = function (el) { el = wrap(el); var parent = this.parent(); el.node.parentNode.insertBefore(this.node, el.node.nextSibling); this.paper = el.paper; parent && parent.add(); el.parent() && el.parent().add(); return this; }; /*\ * Element.remove [ method ] ** * Removes element from the DOM = (Element) the detached element \*/ elproto.remove = function () { var parent = this.parent(); this.node.parentNode && this.node.parentNode.removeChild(this.node); delete this.paper; this.removed = true; parent && parent.add(); return this; }; /*\ * Element.select [ method ] ** * Gathers the nested @Element matching the given set of CSS selectors ** - query (string) CSS selector = (Element) result of query selection \*/ elproto.select = function (query) { query = Str(query).replace(/([^\\]):/g, "$1\\:"); return wrap(this.node.querySelector(query)); }; /*\ * Element.selectAll [ method ] ** * Gathers nested @Element objects matching the given set of CSS selectors ** - query (string) CSS selector = (Set|array) result of query selection \*/ elproto.selectAll = function (query) { var nodelist = this.node.querySelectorAll(query), set = (Snap.set || Array)(); for (var i = 0; i < nodelist.length; i++) { set.push(wrap(nodelist[i])); } return set; }; /*\ * Element.asPX [ method ] ** * Returns given attribute of the element as a `px` value (not %, em, etc.) ** - attr (string) attribute name - value (string) #optional attribute value = (Element) result of query selection \*/ elproto.asPX = function (attr, value) { if (value == null) { value = this.attr(attr); } return +unit2px(this, attr, value); }; // SIERRA Element.use(): I suggest adding a note about how to access the original element the returned instantiates. It's a part of SVG with which ordinary web developers may be least familiar. /*\ * Element.use [ method ] ** * Creates a `` element linked to the current element ** = (Element) the `` element \*/ elproto.use = function () { var use, id = this.node.id; if (!id) { id = this.id; $(this.node, { id: id }); } if (this.type == "linearGradient" || this.type == "radialGradient" || this.type == "pattern") { use = make(this.type, this.node.parentNode); } else { use = make("use", this.node.parentNode); } $(use.node, { "xlink:href": "#" + id }); use.original = this; return use; }; function fixids(el) { var els = el.selectAll("*"), it, url = /^\s*url\(("|'|)(.*)\1\)\s*$/, ids = [], uses = {}; function urltest(it, name) { var val = $(it.node, name); val = val && val.match(url); val = val && val[2]; if (val && val.charAt() == "#") { val = val.substring(1); } else { return; } if (val) { uses[val] = (uses[val] || []).concat(function (id) { var attr = {}; attr[name] = URL(id); $(it.node, attr); }); } } function linktest(it) { var val = $(it.node, "xlink:href"); if (val && val.charAt() == "#") { val = val.substring(1); } else { return; } if (val) { uses[val] = (uses[val] || []).concat(function (id) { it.attr("xlink:href", "#" + id); }); } } for (var i = 0, ii = els.length; i < ii; i++) { it = els[i]; urltest(it, "fill"); urltest(it, "stroke"); urltest(it, "filter"); urltest(it, "mask"); urltest(it, "clip-path"); linktest(it); var oldid = $(it.node, "id"); if (oldid) { $(it.node, {id: it.id}); ids.push({ old: oldid, id: it.id }); } } for (i = 0, ii = ids.length; i < ii; i++) { var fs = uses[ids[i].old]; if (fs) { for (var j = 0, jj = fs.length; j < jj; j++) { fs[j](ids[i].id); } } } } /*\ * Element.clone [ method ] ** * Creates a clone of the element and inserts it after the element ** = (Element) the clone \*/ elproto.clone = function () { var clone = wrap(this.node.cloneNode(true)); if ($(clone.node, "id")) { $(clone.node, {id: clone.id}); } fixids(clone); clone.insertAfter(this); return clone; }; /*\ * Element.toDefs [ method ] ** * Moves element to the shared `` area ** = (Element) the element \*/ elproto.toDefs = function () { var defs = getSomeDefs(this); defs.appendChild(this.node); return this; }; /*\ * Element.toPattern [ method ] ** * Creates a `` element from the current element ** * To create a pattern you have to specify the pattern rect: - x (string|number) - y (string|number) - width (string|number) - height (string|number) = (Element) the `` element * You can use pattern later on as an argument for `fill` attribute: | var p = paper.path("M10-5-10,15M15,0,0,15M0-5-20,15").attr({ | fill: "none", | stroke: "#bada55", | strokeWidth: 5 | }).pattern(0, 0, 10, 10), | c = paper.circle(200, 200, 100); | c.attr({ | fill: p | }); \*/ elproto.pattern = elproto.toPattern = function (x, y, width, height) { var p = make("pattern", getSomeDefs(this)); if (x == null) { x = this.getBBox(); } if (is(x, "object") && "x" in x) { y = x.y; width = x.width; height = x.height; x = x.x; } $(p.node, { x: x, y: y, width: width, height: height, patternUnits: "userSpaceOnUse", id: p.id, viewBox: [x, y, width, height].join(" ") }); p.node.appendChild(this.node); return p; }; // SIERRA Element.marker(): clarify what a reference point is. E.g., helps you offset the object from its edge such as when centering it over a path. // SIERRA Element.marker(): I suggest the method should accept default reference point values. Perhaps centered with (refX = width/2) and (refY = height/2)? Also, couldn't it assume the element's current _width_ and _height_? And please specify what _x_ and _y_ mean: offsets? If so, from where? Couldn't they also be assigned default values? /*\ * Element.marker [ method ] ** * Creates a `` element from the current element ** * To create a marker you have to specify the bounding rect and reference point: - x (number) - y (number) - width (number) - height (number) - refX (number) - refY (number) = (Element) the `` element * You can specify the marker later as an argument for `marker-start`, `marker-end`, `marker-mid`, and `marker` attributes. The `marker` attribute places the marker at every point along the path, and `marker-mid` places them at every point except the start and end. \*/ // TODO add usage for markers elproto.marker = function (x, y, width, height, refX, refY) { var p = make("marker", getSomeDefs(this)); if (x == null) { x = this.getBBox(); } if (is(x, "object") && "x" in x) { y = x.y; width = x.width; height = x.height; refX = x.refX || x.cx; refY = x.refY || x.cy; x = x.x; } $(p.node, { viewBox: [x, y, width, height].join(" "), markerWidth: width, markerHeight: height, orient: "auto", refX: refX || 0, refY: refY || 0, id: p.id }); p.node.appendChild(this.node); return p; }; // animation function slice(from, to, f) { return function (arr) { var res = arr.slice(from, to); if (res.length == 1) { res = res[0]; } return f ? f(res) : res; }; } var Animation = function (attr, ms, easing, callback) { if (typeof easing == "function" && !easing.length) { callback = easing; easing = mina.linear; } this.attr = attr; this.dur = ms; easing && (this.easing = easing); callback && (this.callback = callback); }; Snap._.Animation = Animation; /*\ * Snap.animation [ method ] ** * Creates an animation object ** - attr (object) attributes of final destination - duration (number) duration of the animation, in milliseconds - easing (function) #optional one of easing functions of @mina or custom one - callback (function) #optional callback function that fires when animation ends = (object) animation object \*/ Snap.animation = function (attr, ms, easing, callback) { return new Animation(attr, ms, easing, callback); }; /*\ * Element.inAnim [ method ] ** * Returns a set of animations that may be able to manipulate the current element ** = (object) in format: o { o anim (object) animation object, o mina (object) @mina object, o curStatus (number) 0..1 — status of the animation: 0 — just started, 1 — just finished, o status (function) gets or sets the status of the animation, o stop (function) stops the animation o } \*/ elproto.inAnim = function () { var el = this, res = []; for (var id in el.anims) if (el.anims[has](id)) { (function (a) { res.push({ anim: new Animation(a._attrs, a.dur, a.easing, a._callback), mina: a, curStatus: a.status(), status: function (val) { return a.status(val); }, stop: function () { a.stop(); } }); }(el.anims[id])); } return res; }; /*\ * Snap.animate [ method ] ** * Runs generic animation of one number into another with a caring function ** - from (number|array) number or array of numbers - to (number|array) number or array of numbers - setter (function) caring function that accepts one number argument - duration (number) duration, in milliseconds - easing (function) #optional easing function from @mina or custom - callback (function) #optional callback function to execute when animation ends = (object) animation object in @mina format o { o id (string) animation id, consider it read-only, o duration (function) gets or sets the duration of the animation, o easing (function) easing, o speed (function) gets or sets the speed of the animation, o status (function) gets or sets the status of the animation, o stop (function) stops the animation o } | var rect = Snap().rect(0, 0, 10, 10); | Snap.animate(0, 10, function (val) { | rect.attr({ | x: val | }); | }, 1000); | // in given context is equivalent to | rect.animate({x: 10}, 1000); \*/ Snap.animate = function (from, to, setter, ms, easing, callback) { if (typeof easing == "function" && !easing.length) { callback = easing; easing = mina.linear; } var now = mina.time(), anim = mina(from, to, now, now + ms, mina.time, setter, easing); callback && eve.once("mina.finish." + anim.id, callback); return anim; }; /*\ * Element.stop [ method ] ** * Stops all the animations for the current element ** = (Element) the current element \*/ elproto.stop = function () { var anims = this.inAnim(); for (var i = 0, ii = anims.length; i < ii; i++) { anims[i].stop(); } return this; }; /*\ * Element.animate [ method ] ** * Animates the given attributes of the element ** - attrs (object) key-value pairs of destination attributes - duration (number) duration of the animation in milliseconds - easing (function) #optional easing function from @mina or custom - callback (function) #optional callback function that executes when the animation ends = (Element) the current element \*/ elproto.animate = function (attrs, ms, easing, callback) { if (typeof easing == "function" && !easing.length) { callback = easing; easing = mina.linear; } if (attrs instanceof Animation) { callback = attrs.callback; easing = attrs.easing; ms = easing.dur; attrs = attrs.attr; } var fkeys = [], tkeys = [], keys = {}, from, to, f, eq, el = this; for (var key in attrs) if (attrs[has](key)) { if (el.equal) { eq = el.equal(key, Str(attrs[key])); from = eq.from; to = eq.to; f = eq.f; } else { from = +el.attr(key); to = +attrs[key]; } var len = is(from, "array") ? from.length : 1; keys[key] = slice(fkeys.length, fkeys.length + len, f); fkeys = fkeys.concat(from); tkeys = tkeys.concat(to); } var now = mina.time(), anim = mina(fkeys, tkeys, now, now + ms, mina.time, function (val) { var attr = {}; for (var key in keys) if (keys[has](key)) { attr[key] = keys[key](val); } el.attr(attr); }, easing); el.anims[anim.id] = anim; anim._attrs = attrs; anim._callback = callback; eve("snap.animcreated." + el.id, anim); eve.once("mina.finish." + anim.id, function () { delete el.anims[anim.id]; callback && callback.call(el); }); eve.once("mina.stop." + anim.id, function () { delete el.anims[anim.id]; }); return el; }; var eldata = {}; /*\ * Element.data [ method ] ** * Adds or retrieves given value associated with given key. (Don’t confuse * with `data-` attributes) * * See also @Element.removeData - key (string) key to store data - value (any) #optional value to store = (object) @Element * or, if value is not specified: = (any) value > Usage | for (var i = 0, i < 5, i++) { | paper.circle(10 + 15 * i, 10, 10) | .attr({fill: "#000"}) | .data("i", i) | .click(function () { | alert(this.data("i")); | }); | } \*/ elproto.data = function (key, value) { var data = eldata[this.id] = eldata[this.id] || {}; if (arguments.length == 0){ eve("snap.data.get." + this.id, this, data, null); return data; } if (arguments.length == 1) { if (Snap.is(key, "object")) { for (var i in key) if (key[has](i)) { this.data(i, key[i]); } return this; } eve("snap.data.get." + this.id, this, data[key], key); return data[key]; } data[key] = value; eve("snap.data.set." + this.id, this, value, key); return this; }; /*\ * Element.removeData [ method ] ** * Removes value associated with an element by given key. * If key is not provided, removes all the data of the element. - key (string) #optional key = (object) @Element \*/ elproto.removeData = function (key) { if (key == null) { eldata[this.id] = {}; } else { eldata[this.id] && delete eldata[this.id][key]; } return this; }; /*\ * Element.outerSVG [ method ] ** * Returns SVG code for the element, equivalent to HTML's `outerHTML`. * * See also @Element.innerSVG = (string) SVG code for the element \*/ /*\ * Element.toString [ method ] ** * See @Element.outerSVG \*/ elproto.outerSVG = elproto.toString = toString(1); /*\ * Element.innerSVG [ method ] ** * Returns SVG code for the element's contents, equivalent to HTML's `innerHTML` = (string) SVG code for the element \*/ elproto.innerSVG = toString(); function toString(type) { return function () { var res = type ? "<" + this.type : "", attr = this.node.attributes, chld = this.node.childNodes; if (type) { for (var i = 0, ii = attr.length; i < ii; i++) { res += " " + attr[i].name + '="' + attr[i].value.replace(/"/g, '\\"') + '"'; } } if (chld.length) { type && (res += ">"); for (i = 0, ii = chld.length; i < ii; i++) { if (chld[i].nodeType == 3) { res += chld[i].nodeValue; } else if (chld[i].nodeType == 1) { res += wrap(chld[i]).toString(); } } type && (res += ""); } else { type && (res += "/>"); } return res; }; } elproto.toDataURL = function () { if (window && window.btoa) { var bb = this.getBBox(), svg = Snap.format('{contents}', { x: +bb.x.toFixed(3), y: +bb.y.toFixed(3), width: +bb.width.toFixed(3), height: +bb.height.toFixed(3), contents: this.outerSVG() }); return "data:image/svg+xml;base64," + btoa(unescape(encodeURIComponent(svg))); } }; /*\ * Fragment.select [ method ] ** * See @Element.select \*/ Fragment.prototype.select = elproto.select; /*\ * Fragment.selectAll [ method ] ** * See @Element.selectAll \*/ Fragment.prototype.selectAll = elproto.selectAll; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var objectToString = Object.prototype.toString, Str = String, math = Math, E = ""; function Matrix(a, b, c, d, e, f) { if (b == null && objectToString.call(a) == "[object SVGMatrix]") { this.a = a.a; this.b = a.b; this.c = a.c; this.d = a.d; this.e = a.e; this.f = a.f; return; } if (a != null) { this.a = +a; this.b = +b; this.c = +c; this.d = +d; this.e = +e; this.f = +f; } else { this.a = 1; this.b = 0; this.c = 0; this.d = 1; this.e = 0; this.f = 0; } } (function (matrixproto) { /*\ * Matrix.add [ method ] ** * Adds the given matrix to existing one - a (number) - b (number) - c (number) - d (number) - e (number) - f (number) * or - matrix (object) @Matrix \*/ matrixproto.add = function (a, b, c, d, e, f) { var out = [[], [], []], m = [[this.a, this.c, this.e], [this.b, this.d, this.f], [0, 0, 1]], matrix = [[a, c, e], [b, d, f], [0, 0, 1]], x, y, z, res; if (a && a instanceof Matrix) { matrix = [[a.a, a.c, a.e], [a.b, a.d, a.f], [0, 0, 1]]; } for (x = 0; x < 3; x++) { for (y = 0; y < 3; y++) { res = 0; for (z = 0; z < 3; z++) { res += m[x][z] * matrix[z][y]; } out[x][y] = res; } } this.a = out[0][0]; this.b = out[1][0]; this.c = out[0][1]; this.d = out[1][1]; this.e = out[0][2]; this.f = out[1][2]; return this; }; /*\ * Matrix.invert [ method ] ** * Returns an inverted version of the matrix = (object) @Matrix \*/ matrixproto.invert = function () { var me = this, x = me.a * me.d - me.b * me.c; return new Matrix(me.d / x, -me.b / x, -me.c / x, me.a / x, (me.c * me.f - me.d * me.e) / x, (me.b * me.e - me.a * me.f) / x); }; /*\ * Matrix.clone [ method ] ** * Returns a copy of the matrix = (object) @Matrix \*/ matrixproto.clone = function () { return new Matrix(this.a, this.b, this.c, this.d, this.e, this.f); }; /*\ * Matrix.translate [ method ] ** * Translate the matrix - x (number) horizontal offset distance - y (number) vertical offset distance \*/ matrixproto.translate = function (x, y) { return this.add(1, 0, 0, 1, x, y); }; /*\ * Matrix.scale [ method ] ** * Scales the matrix - x (number) amount to be scaled, with `1` resulting in no change - y (number) #optional amount to scale along the vertical axis. (Otherwise `x` applies to both axes.) - cx (number) #optional horizontal origin point from which to scale - cy (number) #optional vertical origin point from which to scale * Default cx, cy is the middle point of the element. \*/ matrixproto.scale = function (x, y, cx, cy) { y == null && (y = x); (cx || cy) && this.add(1, 0, 0, 1, cx, cy); this.add(x, 0, 0, y, 0, 0); (cx || cy) && this.add(1, 0, 0, 1, -cx, -cy); return this; }; /*\ * Matrix.rotate [ method ] ** * Rotates the matrix - a (number) angle of rotation, in degrees - x (number) horizontal origin point from which to rotate - y (number) vertical origin point from which to rotate \*/ matrixproto.rotate = function (a, x, y) { a = Snap.rad(a); x = x || 0; y = y || 0; var cos = +math.cos(a).toFixed(9), sin = +math.sin(a).toFixed(9); this.add(cos, sin, -sin, cos, x, y); return this.add(1, 0, 0, 1, -x, -y); }; /*\ * Matrix.x [ method ] ** * Returns x coordinate for given point after transformation described by the matrix. See also @Matrix.y - x (number) - y (number) = (number) x \*/ matrixproto.x = function (x, y) { return x * this.a + y * this.c + this.e; }; /*\ * Matrix.y [ method ] ** * Returns y coordinate for given point after transformation described by the matrix. See also @Matrix.x - x (number) - y (number) = (number) y \*/ matrixproto.y = function (x, y) { return x * this.b + y * this.d + this.f; }; matrixproto.get = function (i) { return +this[Str.fromCharCode(97 + i)].toFixed(4); }; matrixproto.toString = function () { return "matrix(" + [this.get(0), this.get(1), this.get(2), this.get(3), this.get(4), this.get(5)].join() + ")"; }; matrixproto.offset = function () { return [this.e.toFixed(4), this.f.toFixed(4)]; }; function norm(a) { return a[0] * a[0] + a[1] * a[1]; } function normalize(a) { var mag = math.sqrt(norm(a)); a[0] && (a[0] /= mag); a[1] && (a[1] /= mag); } /*\ * Matrix.determinant [ method ] ** * Finds determinant of the given matrix. = (number) determinant \*/ matrixproto.determinant = function () { return this.a * this.d - this.b * this.c; }; /*\ * Matrix.split [ method ] ** * Splits matrix into primitive transformations = (object) in format: o dx (number) translation by x o dy (number) translation by y o scalex (number) scale by x o scaley (number) scale by y o shear (number) shear o rotate (number) rotation in deg o isSimple (boolean) could it be represented via simple transformations \*/ matrixproto.split = function () { var out = {}; // translation out.dx = this.e; out.dy = this.f; // scale and shear var row = [[this.a, this.c], [this.b, this.d]]; out.scalex = math.sqrt(norm(row[0])); normalize(row[0]); out.shear = row[0][0] * row[1][0] + row[0][1] * row[1][1]; row[1] = [row[1][0] - row[0][0] * out.shear, row[1][1] - row[0][1] * out.shear]; out.scaley = math.sqrt(norm(row[1])); normalize(row[1]); out.shear /= out.scaley; if (this.determinant() < 0) { out.scalex = -out.scalex; } // rotation var sin = -row[0][1], cos = row[1][1]; if (cos < 0) { out.rotate = Snap.deg(math.acos(cos)); if (sin < 0) { out.rotate = 360 - out.rotate; } } else { out.rotate = Snap.deg(math.asin(sin)); } out.isSimple = !+out.shear.toFixed(9) && (out.scalex.toFixed(9) == out.scaley.toFixed(9) || !out.rotate); out.isSuperSimple = !+out.shear.toFixed(9) && out.scalex.toFixed(9) == out.scaley.toFixed(9) && !out.rotate; out.noRotation = !+out.shear.toFixed(9) && !out.rotate; return out; }; /*\ * Matrix.toTransformString [ method ] ** * Returns transform string that represents given matrix = (string) transform string \*/ matrixproto.toTransformString = function (shorter) { var s = shorter || this.split(); if (!+s.shear.toFixed(9)) { s.scalex = +s.scalex.toFixed(4); s.scaley = +s.scaley.toFixed(4); s.rotate = +s.rotate.toFixed(4); return (s.dx || s.dy ? "t" + [+s.dx.toFixed(4), +s.dy.toFixed(4)] : E) + (s.scalex != 1 || s.scaley != 1 ? "s" + [s.scalex, s.scaley, 0, 0] : E) + (s.rotate ? "r" + [+s.rotate.toFixed(4), 0, 0] : E); } else { return "m" + [this.get(0), this.get(1), this.get(2), this.get(3), this.get(4), this.get(5)]; } }; })(Matrix.prototype); /*\ * Snap.Matrix [ method ] ** * Matrix constructor, extend on your own risk. * To create matrices use @Snap.matrix. \*/ Snap.Matrix = Matrix; /*\ * Snap.matrix [ method ] ** * Utility method ** * Returns a matrix based on the given parameters - a (number) - b (number) - c (number) - d (number) - e (number) - f (number) * or - svgMatrix (SVGMatrix) = (object) @Matrix \*/ Snap.matrix = function (a, b, c, d, e, f) { return new Matrix(a, b, c, d, e, f); }; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var has = "hasOwnProperty", make = Snap._.make, wrap = Snap._.wrap, is = Snap.is, getSomeDefs = Snap._.getSomeDefs, reURLValue = /^url\(#?([^)]+)\)$/, $ = Snap._.$, URL = Snap.url, Str = String, separator = Snap._.separator, E = ""; // Attributes event handlers eve.on("snap.util.attr.mask", function (value) { if (value instanceof Element || value instanceof Fragment) { eve.stop(); if (value instanceof Fragment && value.node.childNodes.length == 1) { value = value.node.firstChild; getSomeDefs(this).appendChild(value); value = wrap(value); } if (value.type == "mask") { var mask = value; } else { mask = make("mask", getSomeDefs(this)); mask.node.appendChild(value.node); } !mask.node.id && $(mask.node, { id: mask.id }); $(this.node, { mask: URL(mask.id) }); } }); (function (clipIt) { eve.on("snap.util.attr.clip", clipIt); eve.on("snap.util.attr.clip-path", clipIt); eve.on("snap.util.attr.clipPath", clipIt); }(function (value) { if (value instanceof Element || value instanceof Fragment) { eve.stop(); if (value.type == "clipPath") { var clip = value; } else { clip = make("clipPath", getSomeDefs(this)); clip.node.appendChild(value.node); !clip.node.id && $(clip.node, { id: clip.id }); } $(this.node, { "clip-path": URL(clip.node.id || clip.id) }); } })); function fillStroke(name) { return function (value) { eve.stop(); if (value instanceof Fragment && value.node.childNodes.length == 1 && (value.node.firstChild.tagName == "radialGradient" || value.node.firstChild.tagName == "linearGradient" || value.node.firstChild.tagName == "pattern")) { value = value.node.firstChild; getSomeDefs(this).appendChild(value); value = wrap(value); } if (value instanceof Element) { if (value.type == "radialGradient" || value.type == "linearGradient" || value.type == "pattern") { if (!value.node.id) { $(value.node, { id: value.id }); } var fill = URL(value.node.id); } else { fill = value.attr(name); } } else { fill = Snap.color(value); if (fill.error) { var grad = Snap(getSomeDefs(this).ownerSVGElement).gradient(value); if (grad) { if (!grad.node.id) { $(grad.node, { id: grad.id }); } fill = URL(grad.node.id); } else { fill = value; } } else { fill = Str(fill); } } var attrs = {}; attrs[name] = fill; $(this.node, attrs); this.node.style[name] = E; }; } eve.on("snap.util.attr.fill", fillStroke("fill")); eve.on("snap.util.attr.stroke", fillStroke("stroke")); var gradrg = /^([lr])(?:\(([^)]*)\))?(.*)$/i; eve.on("snap.util.grad.parse", function parseGrad(string) { string = Str(string); var tokens = string.match(gradrg); if (!tokens) { return null; } var type = tokens[1], params = tokens[2], stops = tokens[3]; params = params.split(/\s*,\s*/).map(function (el) { return +el == el ? +el : el; }); if (params.length == 1 && params[0] == 0) { params = []; } stops = stops.split("-"); stops = stops.map(function (el) { el = el.split(":"); var out = { color: el[0] }; if (el[1]) { out.offset = parseFloat(el[1]); } return out; }); return { type: type, params: params, stops: stops }; }); eve.on("snap.util.attr.d", function (value) { eve.stop(); if (is(value, "array") && is(value[0], "array")) { value = Snap.path.toString.call(value); } value = Str(value); if (value.match(/[ruo]/i)) { value = Snap.path.toAbsolute(value); } $(this.node, {d: value}); })(-1); eve.on("snap.util.attr.#text", function (value) { eve.stop(); value = Str(value); var txt = glob.doc.createTextNode(value); while (this.node.firstChild) { this.node.removeChild(this.node.firstChild); } this.node.appendChild(txt); })(-1); eve.on("snap.util.attr.path", function (value) { eve.stop(); this.attr({d: value}); })(-1); eve.on("snap.util.attr.class", function (value) { eve.stop(); this.node.className.baseVal = value; })(-1); eve.on("snap.util.attr.viewBox", function (value) { var vb; if (is(value, "object") && "x" in value) { vb = [value.x, value.y, value.width, value.height].join(" "); } else if (is(value, "array")) { vb = value.join(" "); } else { vb = value; } $(this.node, { viewBox: vb }); eve.stop(); })(-1); eve.on("snap.util.attr.transform", function (value) { this.transform(value); eve.stop(); })(-1); eve.on("snap.util.attr.r", function (value) { if (this.type == "rect") { eve.stop(); $(this.node, { rx: value, ry: value }); } })(-1); eve.on("snap.util.attr.textpath", function (value) { eve.stop(); if (this.type == "text") { var id, tp, node; if (!value && this.textPath) { tp = this.textPath; while (tp.node.firstChild) { this.node.appendChild(tp.node.firstChild); } tp.remove(); delete this.textPath; return; } if (is(value, "string")) { var defs = getSomeDefs(this), path = wrap(defs.parentNode).path(value); defs.appendChild(path.node); id = path.id; path.attr({id: id}); } else { value = wrap(value); if (value instanceof Element) { id = value.attr("id"); if (!id) { id = value.id; value.attr({id: id}); } } } if (id) { tp = this.textPath; node = this.node; if (tp) { tp.attr({"xlink:href": "#" + id}); } else { tp = $("textPath", { "xlink:href": "#" + id }); while (node.firstChild) { tp.appendChild(node.firstChild); } node.appendChild(tp); this.textPath = wrap(tp); } } } })(-1); eve.on("snap.util.attr.text", function (value) { if (this.type == "text") { var i = 0, node = this.node, tuner = function (chunk) { var out = $("tspan"); if (is(chunk, "array")) { for (var i = 0; i < chunk.length; i++) { out.appendChild(tuner(chunk[i])); } } else { out.appendChild(glob.doc.createTextNode(chunk)); } out.normalize && out.normalize(); return out; }; while (node.firstChild) { node.removeChild(node.firstChild); } var tuned = tuner(value); while (tuned.firstChild) { node.appendChild(tuned.firstChild); } } eve.stop(); })(-1); function setFontSize(value) { eve.stop(); if (value == +value) { value += "px"; } this.node.style.fontSize = value; } eve.on("snap.util.attr.fontSize", setFontSize)(-1); eve.on("snap.util.attr.font-size", setFontSize)(-1); eve.on("snap.util.getattr.transform", function () { eve.stop(); return this.transform(); })(-1); eve.on("snap.util.getattr.textpath", function () { eve.stop(); return this.textPath; })(-1); // Markers (function () { function getter(end) { return function () { eve.stop(); var style = glob.doc.defaultView.getComputedStyle(this.node, null).getPropertyValue("marker-" + end); if (style == "none") { return style; } else { return Snap(glob.doc.getElementById(style.match(reURLValue)[1])); } }; } function setter(end) { return function (value) { eve.stop(); var name = "marker" + end.charAt(0).toUpperCase() + end.substring(1); if (value == "" || !value) { this.node.style[name] = "none"; return; } if (value.type == "marker") { var id = value.node.id; if (!id) { $(value.node, {id: value.id}); } this.node.style[name] = URL(id); return; } }; } eve.on("snap.util.getattr.marker-end", getter("end"))(-1); eve.on("snap.util.getattr.markerEnd", getter("end"))(-1); eve.on("snap.util.getattr.marker-start", getter("start"))(-1); eve.on("snap.util.getattr.markerStart", getter("start"))(-1); eve.on("snap.util.getattr.marker-mid", getter("mid"))(-1); eve.on("snap.util.getattr.markerMid", getter("mid"))(-1); eve.on("snap.util.attr.marker-end", setter("end"))(-1); eve.on("snap.util.attr.markerEnd", setter("end"))(-1); eve.on("snap.util.attr.marker-start", setter("start"))(-1); eve.on("snap.util.attr.markerStart", setter("start"))(-1); eve.on("snap.util.attr.marker-mid", setter("mid"))(-1); eve.on("snap.util.attr.markerMid", setter("mid"))(-1); }()); eve.on("snap.util.getattr.r", function () { if (this.type == "rect" && $(this.node, "rx") == $(this.node, "ry")) { eve.stop(); return $(this.node, "rx"); } })(-1); function textExtract(node) { var out = []; var children = node.childNodes; for (var i = 0, ii = children.length; i < ii; i++) { var chi = children[i]; if (chi.nodeType == 3) { out.push(chi.nodeValue); } if (chi.tagName == "tspan") { if (chi.childNodes.length == 1 && chi.firstChild.nodeType == 3) { out.push(chi.firstChild.nodeValue); } else { out.push(textExtract(chi)); } } } return out; } eve.on("snap.util.getattr.text", function () { if (this.type == "text" || this.type == "tspan") { eve.stop(); var out = textExtract(this.node); return out.length == 1 ? out[0] : out; } })(-1); eve.on("snap.util.getattr.#text", function () { return this.node.textContent; })(-1); eve.on("snap.util.getattr.viewBox", function () { eve.stop(); var vb = $(this.node, "viewBox"); if (vb) { vb = vb.split(separator); return Snap._.box(+vb[0], +vb[1], +vb[2], +vb[3]); } else { return; } })(-1); eve.on("snap.util.getattr.points", function () { var p = $(this.node, "points"); eve.stop(); if (p) { return p.split(separator); } else { return; } })(-1); eve.on("snap.util.getattr.path", function () { var p = $(this.node, "d"); eve.stop(); return p; })(-1); eve.on("snap.util.getattr.class", function () { return this.node.className.baseVal; })(-1); function getFontSize() { eve.stop(); return this.node.style.fontSize; } eve.on("snap.util.getattr.fontSize", getFontSize)(-1); eve.on("snap.util.getattr.font-size", getFontSize)(-1); }); // Copyright (c) 2014 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var rgNotSpace = /\S+/g, rgBadSpace = /[\t\r\n\f]/g, rgTrim = /(^\s+|\s+$)/g, Str = String, elproto = Element.prototype; /*\ * Element.addClass [ method ] ** * Adds given class name or list of class names to the element. - value (string) class name or space separated list of class names ** = (Element) original element. \*/ elproto.addClass = function (value) { var classes = Str(value || "").match(rgNotSpace) || [], elem = this.node, className = elem.className.baseVal, curClasses = className.match(rgNotSpace) || [], j, pos, clazz, finalValue; if (classes.length) { j = 0; while ((clazz = classes[j++])) { pos = curClasses.indexOf(clazz); if (!~pos) { curClasses.push(clazz); } } finalValue = curClasses.join(" "); if (className != finalValue) { elem.className.baseVal = finalValue; } } return this; }; /*\ * Element.removeClass [ method ] ** * Removes given class name or list of class names from the element. - value (string) class name or space separated list of class names ** = (Element) original element. \*/ elproto.removeClass = function (value) { var classes = Str(value || "").match(rgNotSpace) || [], elem = this.node, className = elem.className.baseVal, curClasses = className.match(rgNotSpace) || [], j, pos, clazz, finalValue; if (curClasses.length) { j = 0; while ((clazz = classes[j++])) { pos = curClasses.indexOf(clazz); if (~pos) { curClasses.splice(pos, 1); } } finalValue = curClasses.join(" "); if (className != finalValue) { elem.className.baseVal = finalValue; } } return this; }; /*\ * Element.hasClass [ method ] ** * Checks if the element has a given class name in the list of class names applied to it. - value (string) class name ** = (boolean) `true` if the element has given class \*/ elproto.hasClass = function (value) { var elem = this.node, className = elem.className.baseVal, curClasses = className.match(rgNotSpace) || []; return !!~curClasses.indexOf(value); }; /*\ * Element.toggleClass [ method ] ** * Add or remove one or more classes from the element, depending on either * the class’s presence or the value of the `flag` argument. - value (string) class name or space separated list of class names - flag (boolean) value to determine whether the class should be added or removed ** = (Element) original element. \*/ elproto.toggleClass = function (value, flag) { if (flag != null) { if (flag) { return this.addClass(value); } else { return this.removeClass(value); } } var classes = (value || "").match(rgNotSpace) || [], elem = this.node, className = elem.className.baseVal, curClasses = className.match(rgNotSpace) || [], j, pos, clazz, finalValue; j = 0; while ((clazz = classes[j++])) { pos = curClasses.indexOf(clazz); if (~pos) { curClasses.splice(pos, 1); } else { curClasses.push(clazz); } } finalValue = curClasses.join(" "); if (className != finalValue) { elem.className.baseVal = finalValue; } return this; }; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var operators = { "+": function (x, y) { return x + y; }, "-": function (x, y) { return x - y; }, "/": function (x, y) { return x / y; }, "*": function (x, y) { return x * y; } }, Str = String, reUnit = /[a-z]+$/i, reAddon = /^\s*([+\-\/*])\s*=\s*([\d.eE+\-]+)\s*([^\d\s]+)?\s*$/; function getNumber(val) { return val; } function getUnit(unit) { return function (val) { return +val.toFixed(3) + unit; }; } eve.on("snap.util.attr", function (val) { var plus = Str(val).match(reAddon); if (plus) { var evnt = eve.nt(), name = evnt.substring(evnt.lastIndexOf(".") + 1), a = this.attr(name), atr = {}; eve.stop(); var unit = plus[3] || "", aUnit = a.match(reUnit), op = operators[plus[1]]; if (aUnit && aUnit == unit) { val = op(parseFloat(a), +plus[2]); } else { a = this.asPX(name); val = op(this.asPX(name), this.asPX(name, plus[2] + unit)); } if (isNaN(a) || isNaN(val)) { return; } atr[name] = val; this.attr(atr); } })(-10); eve.on("snap.util.equal", function (name, b) { var A, B, a = Str(this.attr(name) || ""), el = this, bplus = Str(b).match(reAddon); if (bplus) { eve.stop(); var unit = bplus[3] || "", aUnit = a.match(reUnit), op = operators[bplus[1]]; if (aUnit && aUnit == unit) { return { from: parseFloat(a), to: op(parseFloat(a), +bplus[2]), f: getUnit(aUnit) }; } else { a = this.asPX(name); return { from: a, to: op(a, this.asPX(name, bplus[2] + unit)), f: getNumber }; } } })(-10); }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var proto = Paper.prototype, is = Snap.is; /*\ * Paper.rect [ method ] * * Draws a rectangle ** - x (number) x coordinate of the top left corner - y (number) y coordinate of the top left corner - width (number) width - height (number) height - rx (number) #optional horizontal radius for rounded corners, default is 0 - ry (number) #optional vertical radius for rounded corners, default is rx or 0 = (object) the `rect` element ** > Usage | // regular rectangle | var c = paper.rect(10, 10, 50, 50); | // rectangle with rounded corners | var c = paper.rect(40, 40, 50, 50, 10); \*/ proto.rect = function (x, y, w, h, rx, ry) { var attr; if (ry == null) { ry = rx; } if (is(x, "object") && x == "[object Object]") { attr = x; } else if (x != null) { attr = { x: x, y: y, width: w, height: h }; if (rx != null) { attr.rx = rx; attr.ry = ry; } } return this.el("rect", attr); }; /*\ * Paper.circle [ method ] ** * Draws a circle ** - x (number) x coordinate of the centre - y (number) y coordinate of the centre - r (number) radius = (object) the `circle` element ** > Usage | var c = paper.circle(50, 50, 40); \*/ proto.circle = function (cx, cy, r) { var attr; if (is(cx, "object") && cx == "[object Object]") { attr = cx; } else if (cx != null) { attr = { cx: cx, cy: cy, r: r }; } return this.el("circle", attr); }; var preload = (function () { function onerror() { this.parentNode.removeChild(this); } return function (src, f) { var img = glob.doc.createElement("img"), body = glob.doc.body; img.style.cssText = "position:absolute;left:-9999em;top:-9999em"; img.onload = function () { f.call(img); img.onload = img.onerror = null; body.removeChild(img); }; img.onerror = onerror; body.appendChild(img); img.src = src; }; }()); /*\ * Paper.image [ method ] ** * Places an image on the surface ** - src (string) URI of the source image - x (number) x offset position - y (number) y offset position - width (number) width of the image - height (number) height of the image = (object) the `image` element * or = (object) Snap element object with type `image` ** > Usage | var c = paper.image("apple.png", 10, 10, 80, 80); \*/ proto.image = function (src, x, y, width, height) { var el = this.el("image"); if (is(src, "object") && "src" in src) { el.attr(src); } else if (src != null) { var set = { "xlink:href": src, preserveAspectRatio: "none" }; if (x != null && y != null) { set.x = x; set.y = y; } if (width != null && height != null) { set.width = width; set.height = height; } else { preload(src, function () { Snap._.$(el.node, { width: this.offsetWidth, height: this.offsetHeight }); }); } Snap._.$(el.node, set); } return el; }; /*\ * Paper.ellipse [ method ] ** * Draws an ellipse ** - x (number) x coordinate of the centre - y (number) y coordinate of the centre - rx (number) horizontal radius - ry (number) vertical radius = (object) the `ellipse` element ** > Usage | var c = paper.ellipse(50, 50, 40, 20); \*/ proto.ellipse = function (cx, cy, rx, ry) { var attr; if (is(cx, "object") && cx == "[object Object]") { attr = cx; } else if (cx != null) { attr ={ cx: cx, cy: cy, rx: rx, ry: ry }; } return this.el("ellipse", attr); }; // SIERRA Paper.path(): Unclear from the link what a Catmull-Rom curveto is, and why it would make life any easier. /*\ * Paper.path [ method ] ** * Creates a `` element using the given string as the path's definition - pathString (string) #optional path string in SVG format * Path string consists of one-letter commands, followed by comma seprarated arguments in numerical form. Example: | "M10,20L30,40" * This example features two commands: `M`, with arguments `(10, 20)` and `L` with arguments `(30, 40)`. Uppercase letter commands express coordinates in absolute terms, while lowercase commands express them in relative terms from the most recently declared coordinates. * #

Here is short list of commands available, for more details see SVG path string format or article about path strings at MDN.

# # # # # # # # # # # #
CommandNameParameters
Mmoveto(x y)+
Zclosepath(none)
Llineto(x y)+
Hhorizontal linetox+
Vvertical linetoy+
Ccurveto(x1 y1 x2 y2 x y)+
Ssmooth curveto(x2 y2 x y)+
Qquadratic Bézier curveto(x1 y1 x y)+
Tsmooth quadratic Bézier curveto(x y)+
Aelliptical arc(rx ry x-axis-rotation large-arc-flag sweep-flag x y)+
RCatmull-Rom curveto*x1 y1 (x y)+
* * _Catmull-Rom curveto_ is a not standard SVG command and added to make life easier. * Note: there is a special case when a path consists of only three commands: `M10,10R…z`. In this case the path connects back to its starting point. > Usage | var c = paper.path("M10 10L90 90"); | // draw a diagonal line: | // move to 10,10, line to 90,90 \*/ proto.path = function (d) { var attr; if (is(d, "object") && !is(d, "array")) { attr = d; } else if (d) { attr = {d: d}; } return this.el("path", attr); }; /*\ * Paper.g [ method ] ** * Creates a group element ** - varargs (…) #optional elements to nest within the group = (object) the `g` element ** > Usage | var c1 = paper.circle(), | c2 = paper.rect(), | g = paper.g(c2, c1); // note that the order of elements is different * or | var c1 = paper.circle(), | c2 = paper.rect(), | g = paper.g(); | g.add(c2, c1); \*/ /*\ * Paper.group [ method ] ** * See @Paper.g \*/ proto.group = proto.g = function (first) { var attr, el = this.el("g"); if (arguments.length == 1 && first && !first.type) { el.attr(first); } else if (arguments.length) { el.add(Array.prototype.slice.call(arguments, 0)); } return el; }; /*\ * Paper.svg [ method ] ** * Creates a nested SVG element. - x (number) @optional X of the element - y (number) @optional Y of the element - width (number) @optional width of the element - height (number) @optional height of the element - vbx (number) @optional viewbox X - vby (number) @optional viewbox Y - vbw (number) @optional viewbox width - vbh (number) @optional viewbox height ** = (object) the `svg` element ** \*/ proto.svg = function (x, y, width, height, vbx, vby, vbw, vbh) { var attrs = {}; if (is(x, "object") && y == null) { attrs = x; } else { if (x != null) { attrs.x = x; } if (y != null) { attrs.y = y; } if (width != null) { attrs.width = width; } if (height != null) { attrs.height = height; } if (vbx != null && vby != null && vbw != null && vbh != null) { attrs.viewBox = [vbx, vby, vbw, vbh]; } } return this.el("svg", attrs); }; /*\ * Paper.mask [ method ] ** * Equivalent in behaviour to @Paper.g, except it’s a mask. ** = (object) the `mask` element ** \*/ proto.mask = function (first) { var attr, el = this.el("mask"); if (arguments.length == 1 && first && !first.type) { el.attr(first); } else if (arguments.length) { el.add(Array.prototype.slice.call(arguments, 0)); } return el; }; /*\ * Paper.ptrn [ method ] ** * Equivalent in behaviour to @Paper.g, except it’s a pattern. - x (number) @optional X of the element - y (number) @optional Y of the element - width (number) @optional width of the element - height (number) @optional height of the element - vbx (number) @optional viewbox X - vby (number) @optional viewbox Y - vbw (number) @optional viewbox width - vbh (number) @optional viewbox height ** = (object) the `pattern` element ** \*/ proto.ptrn = function (x, y, width, height, vx, vy, vw, vh) { if (is(x, "object")) { var attr = x; } else { attr = {patternUnits: "userSpaceOnUse"}; if (x) { attr.x = x; } if (y) { attr.y = y; } if (width != null) { attr.width = width; } if (height != null) { attr.height = height; } if (vx != null && vy != null && vw != null && vh != null) { attr.viewBox = [vx, vy, vw, vh]; } } return this.el("pattern", attr); }; /*\ * Paper.use [ method ] ** * Creates a element. - id (string) @optional id of element to link * or - id (Element) @optional element to link ** = (object) the `use` element ** \*/ proto.use = function (id) { if (id != null) { if (id instanceof Element) { if (!id.attr("id")) { id.attr({id: Snap._.id(id)}); } id = id.attr("id"); } if (String(id).charAt() == "#") { id = id.substring(1); } return this.el("use", {"xlink:href": "#" + id}); } else { return Element.prototype.use.call(this); } }; /*\ * Paper.symbol [ method ] ** * Creates a element. - vbx (number) @optional viewbox X - vby (number) @optional viewbox Y - vbw (number) @optional viewbox width - vbh (number) @optional viewbox height = (object) the `symbol` element ** \*/ proto.symbol = function (vx, vy, vw, vh) { var attr = {}; if (vx != null && vy != null && vw != null && vh != null) { attr.viewBox = [vx, vy, vw, vh]; } return this.el("symbol", attr); }; /*\ * Paper.text [ method ] ** * Draws a text string ** - x (number) x coordinate position - y (number) y coordinate position - text (string|array) The text string to draw or array of strings to nest within separate `` elements = (object) the `text` element ** > Usage | var t1 = paper.text(50, 50, "Snap"); | var t2 = paper.text(50, 50, ["S","n","a","p"]); | // Text path usage | t1.attr({textpath: "M10,10L100,100"}); | // or | var pth = paper.path("M10,10L100,100"); | t1.attr({textpath: pth}); \*/ proto.text = function (x, y, text) { var attr = {}; if (is(x, "object")) { attr = x; } else if (x != null) { attr = { x: x, y: y, text: text || "" }; } return this.el("text", attr); }; /*\ * Paper.line [ method ] ** * Draws a line ** - x1 (number) x coordinate position of the start - y1 (number) y coordinate position of the start - x2 (number) x coordinate position of the end - y2 (number) y coordinate position of the end = (object) the `line` element ** > Usage | var t1 = paper.line(50, 50, 100, 100); \*/ proto.line = function (x1, y1, x2, y2) { var attr = {}; if (is(x1, "object")) { attr = x1; } else if (x1 != null) { attr = { x1: x1, x2: x2, y1: y1, y2: y2 }; } return this.el("line", attr); }; /*\ * Paper.polyline [ method ] ** * Draws a polyline ** - points (array) array of points * or - varargs (…) points = (object) the `polyline` element ** > Usage | var p1 = paper.polyline([10, 10, 100, 100]); | var p2 = paper.polyline(10, 10, 100, 100); \*/ proto.polyline = function (points) { if (arguments.length > 1) { points = Array.prototype.slice.call(arguments, 0); } var attr = {}; if (is(points, "object") && !is(points, "array")) { attr = points; } else if (points != null) { attr = {points: points}; } return this.el("polyline", attr); }; /*\ * Paper.polygon [ method ] ** * Draws a polygon. See @Paper.polyline \*/ proto.polygon = function (points) { if (arguments.length > 1) { points = Array.prototype.slice.call(arguments, 0); } var attr = {}; if (is(points, "object") && !is(points, "array")) { attr = points; } else if (points != null) { attr = {points: points}; } return this.el("polygon", attr); }; // gradients (function () { var $ = Snap._.$; // gradients' helpers function Gstops() { return this.selectAll("stop"); } function GaddStop(color, offset) { var stop = $("stop"), attr = { offset: +offset + "%" }; color = Snap.color(color); attr["stop-color"] = color.hex; if (color.opacity < 1) { attr["stop-opacity"] = color.opacity; } $(stop, attr); this.node.appendChild(stop); return this; } function GgetBBox() { if (this.type == "linearGradient") { var x1 = $(this.node, "x1") || 0, x2 = $(this.node, "x2") || 1, y1 = $(this.node, "y1") || 0, y2 = $(this.node, "y2") || 0; return Snap._.box(x1, y1, math.abs(x2 - x1), math.abs(y2 - y1)); } else { var cx = this.node.cx || .5, cy = this.node.cy || .5, r = this.node.r || 0; return Snap._.box(cx - r, cy - r, r * 2, r * 2); } } function gradient(defs, str) { var grad = eve("snap.util.grad.parse", null, str).firstDefined(), el; if (!grad) { return null; } grad.params.unshift(defs); if (grad.type.toLowerCase() == "l") { el = gradientLinear.apply(0, grad.params); } else { el = gradientRadial.apply(0, grad.params); } if (grad.type != grad.type.toLowerCase()) { $(el.node, { gradientUnits: "userSpaceOnUse" }); } var stops = grad.stops, len = stops.length, start = 0, j = 0; function seed(i, end) { var step = (end - start) / (i - j); for (var k = j; k < i; k++) { stops[k].offset = +(+start + step * (k - j)).toFixed(2); } j = i; start = end; } len--; for (var i = 0; i < len; i++) if ("offset" in stops[i]) { seed(i, stops[i].offset); } stops[len].offset = stops[len].offset || 100; seed(len, stops[len].offset); for (i = 0; i <= len; i++) { var stop = stops[i]; el.addStop(stop.color, stop.offset); } return el; } function gradientLinear(defs, x1, y1, x2, y2) { var el = Snap._.make("linearGradient", defs); el.stops = Gstops; el.addStop = GaddStop; el.getBBox = GgetBBox; if (x1 != null) { $(el.node, { x1: x1, y1: y1, x2: x2, y2: y2 }); } return el; } function gradientRadial(defs, cx, cy, r, fx, fy) { var el = Snap._.make("radialGradient", defs); el.stops = Gstops; el.addStop = GaddStop; el.getBBox = GgetBBox; if (cx != null) { $(el.node, { cx: cx, cy: cy, r: r }); } if (fx != null && fy != null) { $(el.node, { fx: fx, fy: fy }); } return el; } /*\ * Paper.gradient [ method ] ** * Creates a gradient element ** - gradient (string) gradient descriptor > Gradient Descriptor * The gradient descriptor is an expression formatted as * follows: `()`. The `` can be * either linear or radial. The uppercase `L` or `R` letters * indicate absolute coordinates offset from the SVG surface. * Lowercase `l` or `r` letters indicate coordinates * calculated relative to the element to which the gradient is * applied. Coordinates specify a linear gradient vector as * `x1`, `y1`, `x2`, `y2`, or a radial gradient as `cx`, `cy`, * `r` and optional `fx`, `fy` specifying a focal point away * from the center of the circle. Specify `` as a list * of dash-separated CSS color values. Each color may be * followed by a custom offset value, separated with a colon * character. > Examples * Linear gradient, relative from top-left corner to bottom-right * corner, from black through red to white: | var g = paper.gradient("l(0, 0, 1, 1)#000-#f00-#fff"); * Linear gradient, absolute from (0, 0) to (100, 100), from black * through red at 25% to white: | var g = paper.gradient("L(0, 0, 100, 100)#000-#f00:25-#fff"); * Radial gradient, relative from the center of the element with radius * half the width, from black to white: | var g = paper.gradient("r(0.5, 0.5, 0.5)#000-#fff"); * To apply the gradient: | paper.circle(50, 50, 40).attr({ | fill: g | }); = (object) the `gradient` element \*/ proto.gradient = function (str) { return gradient(this.defs, str); }; proto.gradientLinear = function (x1, y1, x2, y2) { return gradientLinear(this.defs, x1, y1, x2, y2); }; proto.gradientRadial = function (cx, cy, r, fx, fy) { return gradientRadial(this.defs, cx, cy, r, fx, fy); }; /*\ * Paper.toString [ method ] ** * Returns SVG code for the @Paper = (string) SVG code for the @Paper \*/ proto.toString = function () { var doc = this.node.ownerDocument, f = doc.createDocumentFragment(), d = doc.createElement("div"), svg = this.node.cloneNode(true), res; f.appendChild(d); d.appendChild(svg); Snap._.$(svg, {xmlns: "http://www.w3.org/2000/svg"}); res = d.innerHTML; f.removeChild(f.firstChild); return res; }; /*\ * Paper.toDataURL [ method ] ** * Returns SVG code for the @Paper as Data URI string. = (string) Data URI string \*/ proto.toDataURL = function () { if (window && window.btoa) { return "data:image/svg+xml;base64," + btoa(unescape(encodeURIComponent(this))); } }; /*\ * Paper.clear [ method ] ** * Removes all child nodes of the paper, except . \*/ proto.clear = function () { var node = this.node.firstChild, next; while (node) { next = node.nextSibling; if (node.tagName != "defs") { node.parentNode.removeChild(node); } else { proto.clear.call({node: node}); } node = next; } }; }()); }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob) { var elproto = Element.prototype, is = Snap.is, clone = Snap._.clone, has = "hasOwnProperty", p2s = /,?([a-z]),?/gi, toFloat = parseFloat, math = Math, PI = math.PI, mmin = math.min, mmax = math.max, pow = math.pow, abs = math.abs; function paths(ps) { var p = paths.ps = paths.ps || {}; if (p[ps]) { p[ps].sleep = 100; } else { p[ps] = { sleep: 100 }; } setTimeout(function () { for (var key in p) if (p[has](key) && key != ps) { p[key].sleep--; !p[key].sleep && delete p[key]; } }); return p[ps]; } function box(x, y, width, height) { if (x == null) { x = y = width = height = 0; } if (y == null) { y = x.y; width = x.width; height = x.height; x = x.x; } return { x: x, y: y, width: width, w: width, height: height, h: height, x2: x + width, y2: y + height, cx: x + width / 2, cy: y + height / 2, r1: math.min(width, height) / 2, r2: math.max(width, height) / 2, r0: math.sqrt(width * width + height * height) / 2, path: rectPath(x, y, width, height), vb: [x, y, width, height].join(" ") }; } function toString() { return this.join(",").replace(p2s, "$1"); } function pathClone(pathArray) { var res = clone(pathArray); res.toString = toString; return res; } function getPointAtSegmentLength(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length) { if (length == null) { return bezlen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y); } else { return findDotsAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, getTotLen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length)); } } function getLengthFactory(istotal, subpath) { function O(val) { return +(+val).toFixed(3); } return Snap._.cacher(function (path, length, onlystart) { if (path instanceof Element) { path = path.attr("d"); } path = path2curve(path); var x, y, p, l, sp = "", subpaths = {}, point, len = 0; for (var i = 0, ii = path.length; i < ii; i++) { p = path[i]; if (p[0] == "M") { x = +p[1]; y = +p[2]; } else { l = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6]); if (len + l > length) { if (subpath && !subpaths.start) { point = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6], length - len); sp += [ "C" + O(point.start.x), O(point.start.y), O(point.m.x), O(point.m.y), O(point.x), O(point.y) ]; if (onlystart) {return sp;} subpaths.start = sp; sp = [ "M" + O(point.x), O(point.y) + "C" + O(point.n.x), O(point.n.y), O(point.end.x), O(point.end.y), O(p[5]), O(p[6]) ].join(); len += l; x = +p[5]; y = +p[6]; continue; } if (!istotal && !subpath) { point = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6], length - len); return point; } } len += l; x = +p[5]; y = +p[6]; } sp += p.shift() + p; } subpaths.end = sp; point = istotal ? len : subpath ? subpaths : findDotsAtSegment(x, y, p[0], p[1], p[2], p[3], p[4], p[5], 1); return point; }, null, Snap._.clone); } var getTotalLength = getLengthFactory(1), getPointAtLength = getLengthFactory(), getSubpathsAtLength = getLengthFactory(0, 1); function findDotsAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) { var t1 = 1 - t, t13 = pow(t1, 3), t12 = pow(t1, 2), t2 = t * t, t3 = t2 * t, x = t13 * p1x + t12 * 3 * t * c1x + t1 * 3 * t * t * c2x + t3 * p2x, y = t13 * p1y + t12 * 3 * t * c1y + t1 * 3 * t * t * c2y + t3 * p2y, mx = p1x + 2 * t * (c1x - p1x) + t2 * (c2x - 2 * c1x + p1x), my = p1y + 2 * t * (c1y - p1y) + t2 * (c2y - 2 * c1y + p1y), nx = c1x + 2 * t * (c2x - c1x) + t2 * (p2x - 2 * c2x + c1x), ny = c1y + 2 * t * (c2y - c1y) + t2 * (p2y - 2 * c2y + c1y), ax = t1 * p1x + t * c1x, ay = t1 * p1y + t * c1y, cx = t1 * c2x + t * p2x, cy = t1 * c2y + t * p2y, alpha = (90 - math.atan2(mx - nx, my - ny) * 180 / PI); // (mx > nx || my < ny) && (alpha += 180); return { x: x, y: y, m: {x: mx, y: my}, n: {x: nx, y: ny}, start: {x: ax, y: ay}, end: {x: cx, y: cy}, alpha: alpha }; } function bezierBBox(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y) { if (!Snap.is(p1x, "array")) { p1x = [p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y]; } var bbox = curveDim.apply(null, p1x); return box( bbox.min.x, bbox.min.y, bbox.max.x - bbox.min.x, bbox.max.y - bbox.min.y ); } function isPointInsideBBox(bbox, x, y) { return x >= bbox.x && x <= bbox.x + bbox.width && y >= bbox.y && y <= bbox.y + bbox.height; } function isBBoxIntersect(bbox1, bbox2) { bbox1 = box(bbox1); bbox2 = box(bbox2); return isPointInsideBBox(bbox2, bbox1.x, bbox1.y) || isPointInsideBBox(bbox2, bbox1.x2, bbox1.y) || isPointInsideBBox(bbox2, bbox1.x, bbox1.y2) || isPointInsideBBox(bbox2, bbox1.x2, bbox1.y2) || isPointInsideBBox(bbox1, bbox2.x, bbox2.y) || isPointInsideBBox(bbox1, bbox2.x2, bbox2.y) || isPointInsideBBox(bbox1, bbox2.x, bbox2.y2) || isPointInsideBBox(bbox1, bbox2.x2, bbox2.y2) || (bbox1.x < bbox2.x2 && bbox1.x > bbox2.x || bbox2.x < bbox1.x2 && bbox2.x > bbox1.x) && (bbox1.y < bbox2.y2 && bbox1.y > bbox2.y || bbox2.y < bbox1.y2 && bbox2.y > bbox1.y); } function base3(t, p1, p2, p3, p4) { var t1 = -3 * p1 + 9 * p2 - 9 * p3 + 3 * p4, t2 = t * t1 + 6 * p1 - 12 * p2 + 6 * p3; return t * t2 - 3 * p1 + 3 * p2; } function bezlen(x1, y1, x2, y2, x3, y3, x4, y4, z) { if (z == null) { z = 1; } z = z > 1 ? 1 : z < 0 ? 0 : z; var z2 = z / 2, n = 12, Tvalues = [-.1252,.1252,-.3678,.3678,-.5873,.5873,-.7699,.7699,-.9041,.9041,-.9816,.9816], Cvalues = [0.2491,0.2491,0.2335,0.2335,0.2032,0.2032,0.1601,0.1601,0.1069,0.1069,0.0472,0.0472], sum = 0; for (var i = 0; i < n; i++) { var ct = z2 * Tvalues[i] + z2, xbase = base3(ct, x1, x2, x3, x4), ybase = base3(ct, y1, y2, y3, y4), comb = xbase * xbase + ybase * ybase; sum += Cvalues[i] * math.sqrt(comb); } return z2 * sum; } function getTotLen(x1, y1, x2, y2, x3, y3, x4, y4, ll) { if (ll < 0 || bezlen(x1, y1, x2, y2, x3, y3, x4, y4) < ll) { return; } var t = 1, step = t / 2, t2 = t - step, l, e = .01; l = bezlen(x1, y1, x2, y2, x3, y3, x4, y4, t2); while (abs(l - ll) > e) { step /= 2; t2 += (l < ll ? 1 : -1) * step; l = bezlen(x1, y1, x2, y2, x3, y3, x4, y4, t2); } return t2; } function intersect(x1, y1, x2, y2, x3, y3, x4, y4) { if ( mmax(x1, x2) < mmin(x3, x4) || mmin(x1, x2) > mmax(x3, x4) || mmax(y1, y2) < mmin(y3, y4) || mmin(y1, y2) > mmax(y3, y4) ) { return; } var nx = (x1 * y2 - y1 * x2) * (x3 - x4) - (x1 - x2) * (x3 * y4 - y3 * x4), ny = (x1 * y2 - y1 * x2) * (y3 - y4) - (y1 - y2) * (x3 * y4 - y3 * x4), denominator = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4); if (!denominator) { return; } var px = nx / denominator, py = ny / denominator, px2 = +px.toFixed(2), py2 = +py.toFixed(2); if ( px2 < +mmin(x1, x2).toFixed(2) || px2 > +mmax(x1, x2).toFixed(2) || px2 < +mmin(x3, x4).toFixed(2) || px2 > +mmax(x3, x4).toFixed(2) || py2 < +mmin(y1, y2).toFixed(2) || py2 > +mmax(y1, y2).toFixed(2) || py2 < +mmin(y3, y4).toFixed(2) || py2 > +mmax(y3, y4).toFixed(2) ) { return; } return {x: px, y: py}; } function inter(bez1, bez2) { return interHelper(bez1, bez2); } function interCount(bez1, bez2) { return interHelper(bez1, bez2, 1); } function interHelper(bez1, bez2, justCount) { var bbox1 = bezierBBox(bez1), bbox2 = bezierBBox(bez2); if (!isBBoxIntersect(bbox1, bbox2)) { return justCount ? 0 : []; } var l1 = bezlen.apply(0, bez1), l2 = bezlen.apply(0, bez2), n1 = ~~(l1 / 8), n2 = ~~(l2 / 8), dots1 = [], dots2 = [], xy = {}, res = justCount ? 0 : []; for (var i = 0; i < n1 + 1; i++) { var p = findDotsAtSegment.apply(0, bez1.concat(i / n1)); dots1.push({x: p.x, y: p.y, t: i / n1}); } for (i = 0; i < n2 + 1; i++) { p = findDotsAtSegment.apply(0, bez2.concat(i / n2)); dots2.push({x: p.x, y: p.y, t: i / n2}); } for (i = 0; i < n1; i++) { for (var j = 0; j < n2; j++) { var di = dots1[i], di1 = dots1[i + 1], dj = dots2[j], dj1 = dots2[j + 1], ci = abs(di1.x - di.x) < .001 ? "y" : "x", cj = abs(dj1.x - dj.x) < .001 ? "y" : "x", is = intersect(di.x, di.y, di1.x, di1.y, dj.x, dj.y, dj1.x, dj1.y); if (is) { if (xy[is.x.toFixed(4)] == is.y.toFixed(4)) { continue; } xy[is.x.toFixed(4)] = is.y.toFixed(4); var t1 = di.t + abs((is[ci] - di[ci]) / (di1[ci] - di[ci])) * (di1.t - di.t), t2 = dj.t + abs((is[cj] - dj[cj]) / (dj1[cj] - dj[cj])) * (dj1.t - dj.t); if (t1 >= 0 && t1 <= 1 && t2 >= 0 && t2 <= 1) { if (justCount) { res++; } else { res.push({ x: is.x, y: is.y, t1: t1, t2: t2 }); } } } } } return res; } function pathIntersection(path1, path2) { return interPathHelper(path1, path2); } function pathIntersectionNumber(path1, path2) { return interPathHelper(path1, path2, 1); } function interPathHelper(path1, path2, justCount) { path1 = path2curve(path1); path2 = path2curve(path2); var x1, y1, x2, y2, x1m, y1m, x2m, y2m, bez1, bez2, res = justCount ? 0 : []; for (var i = 0, ii = path1.length; i < ii; i++) { var pi = path1[i]; if (pi[0] == "M") { x1 = x1m = pi[1]; y1 = y1m = pi[2]; } else { if (pi[0] == "C") { bez1 = [x1, y1].concat(pi.slice(1)); x1 = bez1[6]; y1 = bez1[7]; } else { bez1 = [x1, y1, x1, y1, x1m, y1m, x1m, y1m]; x1 = x1m; y1 = y1m; } for (var j = 0, jj = path2.length; j < jj; j++) { var pj = path2[j]; if (pj[0] == "M") { x2 = x2m = pj[1]; y2 = y2m = pj[2]; } else { if (pj[0] == "C") { bez2 = [x2, y2].concat(pj.slice(1)); x2 = bez2[6]; y2 = bez2[7]; } else { bez2 = [x2, y2, x2, y2, x2m, y2m, x2m, y2m]; x2 = x2m; y2 = y2m; } var intr = interHelper(bez1, bez2, justCount); if (justCount) { res += intr; } else { for (var k = 0, kk = intr.length; k < kk; k++) { intr[k].segment1 = i; intr[k].segment2 = j; intr[k].bez1 = bez1; intr[k].bez2 = bez2; } res = res.concat(intr); } } } } } return res; } function isPointInsidePath(path, x, y) { var bbox = pathBBox(path); return isPointInsideBBox(bbox, x, y) && interPathHelper(path, [["M", x, y], ["H", bbox.x2 + 10]], 1) % 2 == 1; } function pathBBox(path) { var pth = paths(path); if (pth.bbox) { return clone(pth.bbox); } if (!path) { return box(); } path = path2curve(path); var x = 0, y = 0, X = [], Y = [], p; for (var i = 0, ii = path.length; i < ii; i++) { p = path[i]; if (p[0] == "M") { x = p[1]; y = p[2]; X.push(x); Y.push(y); } else { var dim = curveDim(x, y, p[1], p[2], p[3], p[4], p[5], p[6]); X = X.concat(dim.min.x, dim.max.x); Y = Y.concat(dim.min.y, dim.max.y); x = p[5]; y = p[6]; } } var xmin = mmin.apply(0, X), ymin = mmin.apply(0, Y), xmax = mmax.apply(0, X), ymax = mmax.apply(0, Y), bb = box(xmin, ymin, xmax - xmin, ymax - ymin); pth.bbox = clone(bb); return bb; } function rectPath(x, y, w, h, r) { if (r) { return [ ["M", +x + (+r), y], ["l", w - r * 2, 0], ["a", r, r, 0, 0, 1, r, r], ["l", 0, h - r * 2], ["a", r, r, 0, 0, 1, -r, r], ["l", r * 2 - w, 0], ["a", r, r, 0, 0, 1, -r, -r], ["l", 0, r * 2 - h], ["a", r, r, 0, 0, 1, r, -r], ["z"] ]; } var res = [["M", x, y], ["l", w, 0], ["l", 0, h], ["l", -w, 0], ["z"]]; res.toString = toString; return res; } function ellipsePath(x, y, rx, ry, a) { if (a == null && ry == null) { ry = rx; } x = +x; y = +y; rx = +rx; ry = +ry; if (a != null) { var rad = Math.PI / 180, x1 = x + rx * Math.cos(-ry * rad), x2 = x + rx * Math.cos(-a * rad), y1 = y + rx * Math.sin(-ry * rad), y2 = y + rx * Math.sin(-a * rad), res = [["M", x1, y1], ["A", rx, rx, 0, +(a - ry > 180), 0, x2, y2]]; } else { res = [ ["M", x, y], ["m", 0, -ry], ["a", rx, ry, 0, 1, 1, 0, 2 * ry], ["a", rx, ry, 0, 1, 1, 0, -2 * ry], ["z"] ]; } res.toString = toString; return res; } var unit2px = Snap._unit2px, getPath = { path: function (el) { return el.attr("path"); }, circle: function (el) { var attr = unit2px(el); return ellipsePath(attr.cx, attr.cy, attr.r); }, ellipse: function (el) { var attr = unit2px(el); return ellipsePath(attr.cx || 0, attr.cy || 0, attr.rx, attr.ry); }, rect: function (el) { var attr = unit2px(el); return rectPath(attr.x || 0, attr.y || 0, attr.width, attr.height, attr.rx, attr.ry); }, image: function (el) { var attr = unit2px(el); return rectPath(attr.x || 0, attr.y || 0, attr.width, attr.height); }, line: function (el) { return "M" + [el.attr("x1") || 0, el.attr("y1") || 0, el.attr("x2"), el.attr("y2")]; }, polyline: function (el) { return "M" + el.attr("points"); }, polygon: function (el) { return "M" + el.attr("points") + "z"; }, deflt: function (el) { var bbox = el.node.getBBox(); return rectPath(bbox.x, bbox.y, bbox.width, bbox.height); } }; function pathToRelative(pathArray) { var pth = paths(pathArray), lowerCase = String.prototype.toLowerCase; if (pth.rel) { return pathClone(pth.rel); } if (!Snap.is(pathArray, "array") || !Snap.is(pathArray && pathArray[0], "array")) { pathArray = Snap.parsePathString(pathArray); } var res = [], x = 0, y = 0, mx = 0, my = 0, start = 0; if (pathArray[0][0] == "M") { x = pathArray[0][1]; y = pathArray[0][2]; mx = x; my = y; start++; res.push(["M", x, y]); } for (var i = start, ii = pathArray.length; i < ii; i++) { var r = res[i] = [], pa = pathArray[i]; if (pa[0] != lowerCase.call(pa[0])) { r[0] = lowerCase.call(pa[0]); switch (r[0]) { case "a": r[1] = pa[1]; r[2] = pa[2]; r[3] = pa[3]; r[4] = pa[4]; r[5] = pa[5]; r[6] = +(pa[6] - x).toFixed(3); r[7] = +(pa[7] - y).toFixed(3); break; case "v": r[1] = +(pa[1] - y).toFixed(3); break; case "m": mx = pa[1]; my = pa[2]; default: for (var j = 1, jj = pa.length; j < jj; j++) { r[j] = +(pa[j] - ((j % 2) ? x : y)).toFixed(3); } } } else { r = res[i] = []; if (pa[0] == "m") { mx = pa[1] + x; my = pa[2] + y; } for (var k = 0, kk = pa.length; k < kk; k++) { res[i][k] = pa[k]; } } var len = res[i].length; switch (res[i][0]) { case "z": x = mx; y = my; break; case "h": x += +res[i][len - 1]; break; case "v": y += +res[i][len - 1]; break; default: x += +res[i][len - 2]; y += +res[i][len - 1]; } } res.toString = toString; pth.rel = pathClone(res); return res; } function pathToAbsolute(pathArray) { var pth = paths(pathArray); if (pth.abs) { return pathClone(pth.abs); } if (!is(pathArray, "array") || !is(pathArray && pathArray[0], "array")) { // rough assumption pathArray = Snap.parsePathString(pathArray); } if (!pathArray || !pathArray.length) { return [["M", 0, 0]]; } var res = [], x = 0, y = 0, mx = 0, my = 0, start = 0, pa0; if (pathArray[0][0] == "M") { x = +pathArray[0][1]; y = +pathArray[0][2]; mx = x; my = y; start++; res[0] = ["M", x, y]; } var crz = pathArray.length == 3 && pathArray[0][0] == "M" && pathArray[1][0].toUpperCase() == "R" && pathArray[2][0].toUpperCase() == "Z"; for (var r, pa, i = start, ii = pathArray.length; i < ii; i++) { res.push(r = []); pa = pathArray[i]; pa0 = pa[0]; if (pa0 != pa0.toUpperCase()) { r[0] = pa0.toUpperCase(); switch (r[0]) { case "A": r[1] = pa[1]; r[2] = pa[2]; r[3] = pa[3]; r[4] = pa[4]; r[5] = pa[5]; r[6] = +pa[6] + x; r[7] = +pa[7] + y; break; case "V": r[1] = +pa[1] + y; break; case "H": r[1] = +pa[1] + x; break; case "R": var dots = [x, y].concat(pa.slice(1)); for (var j = 2, jj = dots.length; j < jj; j++) { dots[j] = +dots[j] + x; dots[++j] = +dots[j] + y; } res.pop(); res = res.concat(catmullRom2bezier(dots, crz)); break; case "O": res.pop(); dots = ellipsePath(x, y, pa[1], pa[2]); dots.push(dots[0]); res = res.concat(dots); break; case "U": res.pop(); res = res.concat(ellipsePath(x, y, pa[1], pa[2], pa[3])); r = ["U"].concat(res[res.length - 1].slice(-2)); break; case "M": mx = +pa[1] + x; my = +pa[2] + y; default: for (j = 1, jj = pa.length; j < jj; j++) { r[j] = +pa[j] + ((j % 2) ? x : y); } } } else if (pa0 == "R") { dots = [x, y].concat(pa.slice(1)); res.pop(); res = res.concat(catmullRom2bezier(dots, crz)); r = ["R"].concat(pa.slice(-2)); } else if (pa0 == "O") { res.pop(); dots = ellipsePath(x, y, pa[1], pa[2]); dots.push(dots[0]); res = res.concat(dots); } else if (pa0 == "U") { res.pop(); res = res.concat(ellipsePath(x, y, pa[1], pa[2], pa[3])); r = ["U"].concat(res[res.length - 1].slice(-2)); } else { for (var k = 0, kk = pa.length; k < kk; k++) { r[k] = pa[k]; } } pa0 = pa0.toUpperCase(); if (pa0 != "O") { switch (r[0]) { case "Z": x = +mx; y = +my; break; case "H": x = r[1]; break; case "V": y = r[1]; break; case "M": mx = r[r.length - 2]; my = r[r.length - 1]; default: x = r[r.length - 2]; y = r[r.length - 1]; } } } res.toString = toString; pth.abs = pathClone(res); return res; } function l2c(x1, y1, x2, y2) { return [x1, y1, x2, y2, x2, y2]; } function q2c(x1, y1, ax, ay, x2, y2) { var _13 = 1 / 3, _23 = 2 / 3; return [ _13 * x1 + _23 * ax, _13 * y1 + _23 * ay, _13 * x2 + _23 * ax, _13 * y2 + _23 * ay, x2, y2 ]; } function a2c(x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2, recursive) { // for more information of where this math came from visit: // http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes var _120 = PI * 120 / 180, rad = PI / 180 * (+angle || 0), res = [], xy, rotate = Snap._.cacher(function (x, y, rad) { var X = x * math.cos(rad) - y * math.sin(rad), Y = x * math.sin(rad) + y * math.cos(rad); return {x: X, y: Y}; }); if (!recursive) { xy = rotate(x1, y1, -rad); x1 = xy.x; y1 = xy.y; xy = rotate(x2, y2, -rad); x2 = xy.x; y2 = xy.y; var cos = math.cos(PI / 180 * angle), sin = math.sin(PI / 180 * angle), x = (x1 - x2) / 2, y = (y1 - y2) / 2; var h = (x * x) / (rx * rx) + (y * y) / (ry * ry); if (h > 1) { h = math.sqrt(h); rx = h * rx; ry = h * ry; } var rx2 = rx * rx, ry2 = ry * ry, k = (large_arc_flag == sweep_flag ? -1 : 1) * math.sqrt(abs((rx2 * ry2 - rx2 * y * y - ry2 * x * x) / (rx2 * y * y + ry2 * x * x))), cx = k * rx * y / ry + (x1 + x2) / 2, cy = k * -ry * x / rx + (y1 + y2) / 2, f1 = math.asin(((y1 - cy) / ry).toFixed(9)), f2 = math.asin(((y2 - cy) / ry).toFixed(9)); f1 = x1 < cx ? PI - f1 : f1; f2 = x2 < cx ? PI - f2 : f2; f1 < 0 && (f1 = PI * 2 + f1); f2 < 0 && (f2 = PI * 2 + f2); if (sweep_flag && f1 > f2) { f1 = f1 - PI * 2; } if (!sweep_flag && f2 > f1) { f2 = f2 - PI * 2; } } else { f1 = recursive[0]; f2 = recursive[1]; cx = recursive[2]; cy = recursive[3]; } var df = f2 - f1; if (abs(df) > _120) { var f2old = f2, x2old = x2, y2old = y2; f2 = f1 + _120 * (sweep_flag && f2 > f1 ? 1 : -1); x2 = cx + rx * math.cos(f2); y2 = cy + ry * math.sin(f2); res = a2c(x2, y2, rx, ry, angle, 0, sweep_flag, x2old, y2old, [f2, f2old, cx, cy]); } df = f2 - f1; var c1 = math.cos(f1), s1 = math.sin(f1), c2 = math.cos(f2), s2 = math.sin(f2), t = math.tan(df / 4), hx = 4 / 3 * rx * t, hy = 4 / 3 * ry * t, m1 = [x1, y1], m2 = [x1 + hx * s1, y1 - hy * c1], m3 = [x2 + hx * s2, y2 - hy * c2], m4 = [x2, y2]; m2[0] = 2 * m1[0] - m2[0]; m2[1] = 2 * m1[1] - m2[1]; if (recursive) { return [m2, m3, m4].concat(res); } else { res = [m2, m3, m4].concat(res).join().split(","); var newres = []; for (var i = 0, ii = res.length; i < ii; i++) { newres[i] = i % 2 ? rotate(res[i - 1], res[i], rad).y : rotate(res[i], res[i + 1], rad).x; } return newres; } } function findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) { var t1 = 1 - t; return { x: pow(t1, 3) * p1x + pow(t1, 2) * 3 * t * c1x + t1 * 3 * t * t * c2x + pow(t, 3) * p2x, y: pow(t1, 3) * p1y + pow(t1, 2) * 3 * t * c1y + t1 * 3 * t * t * c2y + pow(t, 3) * p2y }; } // Returns bounding box of cubic bezier curve. // Source: http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html // Original version: NISHIO Hirokazu // Modifications: https://github.com/timo22345 function curveDim(x0, y0, x1, y1, x2, y2, x3, y3) { var tvalues = [], bounds = [[], []], a, b, c, t, t1, t2, b2ac, sqrtb2ac; for (var i = 0; i < 2; ++i) { if (i == 0) { b = 6 * x0 - 12 * x1 + 6 * x2; a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3; c = 3 * x1 - 3 * x0; } else { b = 6 * y0 - 12 * y1 + 6 * y2; a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3; c = 3 * y1 - 3 * y0; } if (abs(a) < 1e-12) { if (abs(b) < 1e-12) { continue; } t = -c / b; if (0 < t && t < 1) { tvalues.push(t); } continue; } b2ac = b * b - 4 * c * a; sqrtb2ac = math.sqrt(b2ac); if (b2ac < 0) { continue; } t1 = (-b + sqrtb2ac) / (2 * a); if (0 < t1 && t1 < 1) { tvalues.push(t1); } t2 = (-b - sqrtb2ac) / (2 * a); if (0 < t2 && t2 < 1) { tvalues.push(t2); } } var x, y, j = tvalues.length, jlen = j, mt; while (j--) { t = tvalues[j]; mt = 1 - t; bounds[0][j] = (mt * mt * mt * x0) + (3 * mt * mt * t * x1) + (3 * mt * t * t * x2) + (t * t * t * x3); bounds[1][j] = (mt * mt * mt * y0) + (3 * mt * mt * t * y1) + (3 * mt * t * t * y2) + (t * t * t * y3); } bounds[0][jlen] = x0; bounds[1][jlen] = y0; bounds[0][jlen + 1] = x3; bounds[1][jlen + 1] = y3; bounds[0].length = bounds[1].length = jlen + 2; return { min: {x: mmin.apply(0, bounds[0]), y: mmin.apply(0, bounds[1])}, max: {x: mmax.apply(0, bounds[0]), y: mmax.apply(0, bounds[1])} }; } function path2curve(path, path2) { var pth = !path2 && paths(path); if (!path2 && pth.curve) { return pathClone(pth.curve); } var p = pathToAbsolute(path), p2 = path2 && pathToAbsolute(path2), attrs = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null}, attrs2 = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null}, processPath = function (path, d, pcom) { var nx, ny; if (!path) { return ["C", d.x, d.y, d.x, d.y, d.x, d.y]; } !(path[0] in {T: 1, Q: 1}) && (d.qx = d.qy = null); switch (path[0]) { case "M": d.X = path[1]; d.Y = path[2]; break; case "A": path = ["C"].concat(a2c.apply(0, [d.x, d.y].concat(path.slice(1)))); break; case "S": if (pcom == "C" || pcom == "S") { // In "S" case we have to take into account, if the previous command is C/S. nx = d.x * 2 - d.bx; // And reflect the previous ny = d.y * 2 - d.by; // command's control point relative to the current point. } else { // or some else or nothing nx = d.x; ny = d.y; } path = ["C", nx, ny].concat(path.slice(1)); break; case "T": if (pcom == "Q" || pcom == "T") { // In "T" case we have to take into account, if the previous command is Q/T. d.qx = d.x * 2 - d.qx; // And make a reflection similar d.qy = d.y * 2 - d.qy; // to case "S". } else { // or something else or nothing d.qx = d.x; d.qy = d.y; } path = ["C"].concat(q2c(d.x, d.y, d.qx, d.qy, path[1], path[2])); break; case "Q": d.qx = path[1]; d.qy = path[2]; path = ["C"].concat(q2c(d.x, d.y, path[1], path[2], path[3], path[4])); break; case "L": path = ["C"].concat(l2c(d.x, d.y, path[1], path[2])); break; case "H": path = ["C"].concat(l2c(d.x, d.y, path[1], d.y)); break; case "V": path = ["C"].concat(l2c(d.x, d.y, d.x, path[1])); break; case "Z": path = ["C"].concat(l2c(d.x, d.y, d.X, d.Y)); break; } return path; }, fixArc = function (pp, i) { if (pp[i].length > 7) { pp[i].shift(); var pi = pp[i]; while (pi.length) { pcoms1[i] = "A"; // if created multiple C:s, their original seg is saved p2 && (pcoms2[i] = "A"); // the same as above pp.splice(i++, 0, ["C"].concat(pi.splice(0, 6))); } pp.splice(i, 1); ii = mmax(p.length, p2 && p2.length || 0); } }, fixM = function (path1, path2, a1, a2, i) { if (path1 && path2 && path1[i][0] == "M" && path2[i][0] != "M") { path2.splice(i, 0, ["M", a2.x, a2.y]); a1.bx = 0; a1.by = 0; a1.x = path1[i][1]; a1.y = path1[i][2]; ii = mmax(p.length, p2 && p2.length || 0); } }, pcoms1 = [], // path commands of original path p pcoms2 = [], // path commands of original path p2 pfirst = "", // temporary holder for original path command pcom = ""; // holder for previous path command of original path for (var i = 0, ii = mmax(p.length, p2 && p2.length || 0); i < ii; i++) { p[i] && (pfirst = p[i][0]); // save current path command if (pfirst != "C") // C is not saved yet, because it may be result of conversion { pcoms1[i] = pfirst; // Save current path command i && ( pcom = pcoms1[i - 1]); // Get previous path command pcom } p[i] = processPath(p[i], attrs, pcom); // Previous path command is inputted to processPath if (pcoms1[i] != "A" && pfirst == "C") pcoms1[i] = "C"; // A is the only command // which may produce multiple C:s // so we have to make sure that C is also C in original path fixArc(p, i); // fixArc adds also the right amount of A:s to pcoms1 if (p2) { // the same procedures is done to p2 p2[i] && (pfirst = p2[i][0]); if (pfirst != "C") { pcoms2[i] = pfirst; i && (pcom = pcoms2[i - 1]); } p2[i] = processPath(p2[i], attrs2, pcom); if (pcoms2[i] != "A" && pfirst == "C") { pcoms2[i] = "C"; } fixArc(p2, i); } fixM(p, p2, attrs, attrs2, i); fixM(p2, p, attrs2, attrs, i); var seg = p[i], seg2 = p2 && p2[i], seglen = seg.length, seg2len = p2 && seg2.length; attrs.x = seg[seglen - 2]; attrs.y = seg[seglen - 1]; attrs.bx = toFloat(seg[seglen - 4]) || attrs.x; attrs.by = toFloat(seg[seglen - 3]) || attrs.y; attrs2.bx = p2 && (toFloat(seg2[seg2len - 4]) || attrs2.x); attrs2.by = p2 && (toFloat(seg2[seg2len - 3]) || attrs2.y); attrs2.x = p2 && seg2[seg2len - 2]; attrs2.y = p2 && seg2[seg2len - 1]; } if (!p2) { pth.curve = pathClone(p); } return p2 ? [p, p2] : p; } function mapPath(path, matrix) { if (!matrix) { return path; } var x, y, i, j, ii, jj, pathi; path = path2curve(path); for (i = 0, ii = path.length; i < ii; i++) { pathi = path[i]; for (j = 1, jj = pathi.length; j < jj; j += 2) { x = matrix.x(pathi[j], pathi[j + 1]); y = matrix.y(pathi[j], pathi[j + 1]); pathi[j] = x; pathi[j + 1] = y; } } return path; } // http://schepers.cc/getting-to-the-point function catmullRom2bezier(crp, z) { var d = []; for (var i = 0, iLen = crp.length; iLen - 2 * !z > i; i += 2) { var p = [ {x: +crp[i - 2], y: +crp[i - 1]}, {x: +crp[i], y: +crp[i + 1]}, {x: +crp[i + 2], y: +crp[i + 3]}, {x: +crp[i + 4], y: +crp[i + 5]} ]; if (z) { if (!i) { p[0] = {x: +crp[iLen - 2], y: +crp[iLen - 1]}; } else if (iLen - 4 == i) { p[3] = {x: +crp[0], y: +crp[1]}; } else if (iLen - 2 == i) { p[2] = {x: +crp[0], y: +crp[1]}; p[3] = {x: +crp[2], y: +crp[3]}; } } else { if (iLen - 4 == i) { p[3] = p[2]; } else if (!i) { p[0] = {x: +crp[i], y: +crp[i + 1]}; } } d.push(["C", (-p[0].x + 6 * p[1].x + p[2].x) / 6, (-p[0].y + 6 * p[1].y + p[2].y) / 6, (p[1].x + 6 * p[2].x - p[3].x) / 6, (p[1].y + 6*p[2].y - p[3].y) / 6, p[2].x, p[2].y ]); } return d; } // export Snap.path = paths; /*\ * Snap.path.getTotalLength [ method ] ** * Returns the length of the given path in pixels ** - path (string) SVG path string ** = (number) length \*/ Snap.path.getTotalLength = getTotalLength; /*\ * Snap.path.getPointAtLength [ method ] ** * Returns the coordinates of the point located at the given length along the given path ** - path (string) SVG path string - length (number) length, in pixels, from the start of the path, excluding non-rendering jumps ** = (object) representation of the point: o { o x: (number) x coordinate, o y: (number) y coordinate, o alpha: (number) angle of derivative o } \*/ Snap.path.getPointAtLength = getPointAtLength; /*\ * Snap.path.getSubpath [ method ] ** * Returns the subpath of a given path between given start and end lengths ** - path (string) SVG path string - from (number) length, in pixels, from the start of the path to the start of the segment - to (number) length, in pixels, from the start of the path to the end of the segment ** = (string) path string definition for the segment \*/ Snap.path.getSubpath = function (path, from, to) { if (this.getTotalLength(path) - to < 1e-6) { return getSubpathsAtLength(path, from).end; } var a = getSubpathsAtLength(path, to, 1); return from ? getSubpathsAtLength(a, from).end : a; }; /*\ * Element.getTotalLength [ method ] ** * Returns the length of the path in pixels (only works for `path` elements) = (number) length \*/ elproto.getTotalLength = function () { if (this.node.getTotalLength) { return this.node.getTotalLength(); } }; // SIERRA Element.getPointAtLength()/Element.getTotalLength(): If a is broken into different segments, is the jump distance to the new coordinates set by the _M_ or _m_ commands calculated as part of the path's total length? /*\ * Element.getPointAtLength [ method ] ** * Returns coordinates of the point located at the given length on the given path (only works for `path` elements) ** - length (number) length, in pixels, from the start of the path, excluding non-rendering jumps ** = (object) representation of the point: o { o x: (number) x coordinate, o y: (number) y coordinate, o alpha: (number) angle of derivative o } \*/ elproto.getPointAtLength = function (length) { return getPointAtLength(this.attr("d"), length); }; // SIERRA Element.getSubpath(): Similar to the problem for Element.getPointAtLength(). Unclear how this would work for a segmented path. Overall, the concept of _subpath_ and what I'm calling a _segment_ (series of non-_M_ or _Z_ commands) is unclear. /*\ * Element.getSubpath [ method ] ** * Returns subpath of a given element from given start and end lengths (only works for `path` elements) ** - from (number) length, in pixels, from the start of the path to the start of the segment - to (number) length, in pixels, from the start of the path to the end of the segment ** = (string) path string definition for the segment \*/ elproto.getSubpath = function (from, to) { return Snap.path.getSubpath(this.attr("d"), from, to); }; Snap._.box = box; /*\ * Snap.path.findDotsAtSegment [ method ] ** * Utility method ** * Finds dot coordinates on the given cubic beziér curve at the given t - p1x (number) x of the first point of the curve - p1y (number) y of the first point of the curve - c1x (number) x of the first anchor of the curve - c1y (number) y of the first anchor of the curve - c2x (number) x of the second anchor of the curve - c2y (number) y of the second anchor of the curve - p2x (number) x of the second point of the curve - p2y (number) y of the second point of the curve - t (number) position on the curve (0..1) = (object) point information in format: o { o x: (number) x coordinate of the point, o y: (number) y coordinate of the point, o m: { o x: (number) x coordinate of the left anchor, o y: (number) y coordinate of the left anchor o }, o n: { o x: (number) x coordinate of the right anchor, o y: (number) y coordinate of the right anchor o }, o start: { o x: (number) x coordinate of the start of the curve, o y: (number) y coordinate of the start of the curve o }, o end: { o x: (number) x coordinate of the end of the curve, o y: (number) y coordinate of the end of the curve o }, o alpha: (number) angle of the curve derivative at the point o } \*/ Snap.path.findDotsAtSegment = findDotsAtSegment; /*\ * Snap.path.bezierBBox [ method ] ** * Utility method ** * Returns the bounding box of a given cubic beziér curve - p1x (number) x of the first point of the curve - p1y (number) y of the first point of the curve - c1x (number) x of the first anchor of the curve - c1y (number) y of the first anchor of the curve - c2x (number) x of the second anchor of the curve - c2y (number) y of the second anchor of the curve - p2x (number) x of the second point of the curve - p2y (number) y of the second point of the curve * or - bez (array) array of six points for beziér curve = (object) bounding box o { o x: (number) x coordinate of the left top point of the box, o y: (number) y coordinate of the left top point of the box, o x2: (number) x coordinate of the right bottom point of the box, o y2: (number) y coordinate of the right bottom point of the box, o width: (number) width of the box, o height: (number) height of the box o } \*/ Snap.path.bezierBBox = bezierBBox; /*\ * Snap.path.isPointInsideBBox [ method ] ** * Utility method ** * Returns `true` if given point is inside bounding box - bbox (string) bounding box - x (string) x coordinate of the point - y (string) y coordinate of the point = (boolean) `true` if point is inside \*/ Snap.path.isPointInsideBBox = isPointInsideBBox; /*\ * Snap.path.isBBoxIntersect [ method ] ** * Utility method ** * Returns `true` if two bounding boxes intersect - bbox1 (string) first bounding box - bbox2 (string) second bounding box = (boolean) `true` if bounding boxes intersect \*/ Snap.path.isBBoxIntersect = isBBoxIntersect; /*\ * Snap.path.intersection [ method ] ** * Utility method ** * Finds intersections of two paths - path1 (string) path string - path2 (string) path string = (array) dots of intersection o [ o { o x: (number) x coordinate of the point, o y: (number) y coordinate of the point, o t1: (number) t value for segment of path1, o t2: (number) t value for segment of path2, o segment1: (number) order number for segment of path1, o segment2: (number) order number for segment of path2, o bez1: (array) eight coordinates representing beziér curve for the segment of path1, o bez2: (array) eight coordinates representing beziér curve for the segment of path2 o } o ] \*/ Snap.path.intersection = pathIntersection; Snap.path.intersectionNumber = pathIntersectionNumber; /*\ * Snap.path.isPointInside [ method ] ** * Utility method ** * Returns `true` if given point is inside a given closed path. * * Note: fill mode doesn’t affect the result of this method. - path (string) path string - x (number) x of the point - y (number) y of the point = (boolean) `true` if point is inside the path \*/ Snap.path.isPointInside = isPointInsidePath; /*\ * Snap.path.getBBox [ method ] ** * Utility method ** * Returns the bounding box of a given path - path (string) path string = (object) bounding box o { o x: (number) x coordinate of the left top point of the box, o y: (number) y coordinate of the left top point of the box, o x2: (number) x coordinate of the right bottom point of the box, o y2: (number) y coordinate of the right bottom point of the box, o width: (number) width of the box, o height: (number) height of the box o } \*/ Snap.path.getBBox = pathBBox; Snap.path.get = getPath; /*\ * Snap.path.toRelative [ method ] ** * Utility method ** * Converts path coordinates into relative values - path (string) path string = (array) path string \*/ Snap.path.toRelative = pathToRelative; /*\ * Snap.path.toAbsolute [ method ] ** * Utility method ** * Converts path coordinates into absolute values - path (string) path string = (array) path string \*/ Snap.path.toAbsolute = pathToAbsolute; /*\ * Snap.path.toCubic [ method ] ** * Utility method ** * Converts path to a new path where all segments are cubic beziér curves - pathString (string|array) path string or array of segments = (array) array of segments \*/ Snap.path.toCubic = path2curve; /*\ * Snap.path.map [ method ] ** * Transform the path string with the given matrix - path (string) path string - matrix (object) see @Matrix = (string) transformed path string \*/ Snap.path.map = mapPath; Snap.path.toString = toString; Snap.path.clone = pathClone; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob) { var mmax = Math.max, mmin = Math.min; // Set var Set = function (items) { this.items = []; this.bindings = {}; this.length = 0; this.type = "set"; if (items) { for (var i = 0, ii = items.length; i < ii; i++) { if (items[i]) { this[this.items.length] = this.items[this.items.length] = items[i]; this.length++; } } } }, setproto = Set.prototype; /*\ * Set.push [ method ] ** * Adds each argument to the current set = (object) original element \*/ setproto.push = function () { var item, len; for (var i = 0, ii = arguments.length; i < ii; i++) { item = arguments[i]; if (item) { len = this.items.length; this[len] = this.items[len] = item; this.length++; } } return this; }; /*\ * Set.pop [ method ] ** * Removes last element and returns it = (object) element \*/ setproto.pop = function () { this.length && delete this[this.length--]; return this.items.pop(); }; /*\ * Set.forEach [ method ] ** * Executes given function for each element in the set * * If the function returns `false`, the loop stops running. ** - callback (function) function to run - thisArg (object) context object for the callback = (object) Set object \*/ setproto.forEach = function (callback, thisArg) { for (var i = 0, ii = this.items.length; i < ii; i++) { if (callback.call(thisArg, this.items[i], i) === false) { return this; } } return this; }; /*\ * Set.animate [ method ] ** * Animates each element in set in sync. * ** - attrs (object) key-value pairs of destination attributes - duration (number) duration of the animation in milliseconds - easing (function) #optional easing function from @mina or custom - callback (function) #optional callback function that executes when the animation ends * or - animation (array) array of animation parameter for each element in set in format `[attrs, duration, easing, callback]` > Usage | // animate all elements in set to radius 10 | set.animate({r: 10}, 500, mina.easein); | // or | // animate first element to radius 10, but second to radius 20 and in different time | set.animate([{r: 10}, 500, mina.easein], [{r: 20}, 1500, mina.easein]); = (Element) the current element \*/ setproto.animate = function (attrs, ms, easing, callback) { if (typeof easing == "function" && !easing.length) { callback = easing; easing = mina.linear; } if (attrs instanceof Snap._.Animation) { callback = attrs.callback; easing = attrs.easing; ms = easing.dur; attrs = attrs.attr; } var args = arguments; if (Snap.is(attrs, "array") && Snap.is(args[args.length - 1], "array")) { var each = true; } var begin, handler = function () { if (begin) { this.b = begin; } else { begin = this.b; } }, cb = 0, callbacker = callback && function () { if (cb++ == this.length) { callback.call(this); } }; return this.forEach(function (el, i) { eve.once("snap.animcreated." + el.id, handler); if (each) { args[i] && el.animate.apply(el, args[i]); } else { el.animate(attrs, ms, easing, callbacker); } }); }; setproto.remove = function () { while (this.length) { this.pop().remove(); } return this; }; /*\ * Set.bind [ method ] ** * Specifies how to handle a specific attribute when applied * to a set. * ** - attr (string) attribute name - callback (function) function to run * or - attr (string) attribute name - element (Element) specific element in the set to apply the attribute to * or - attr (string) attribute name - element (Element) specific element in the set to apply the attribute to - eattr (string) attribute on the element to bind the attribute to = (object) Set object \*/ setproto.bind = function (attr, a, b) { var data = {}; if (typeof a == "function") { this.bindings[attr] = a; } else { var aname = b || attr; this.bindings[attr] = function (v) { data[aname] = v; a.attr(data); }; } return this; }; setproto.attr = function (value) { var unbound = {}; for (var k in value) { if (this.bindings[k]) { this.bindings[k](value[k]); } else { unbound[k] = value[k]; } } for (var i = 0, ii = this.items.length; i < ii; i++) { this.items[i].attr(unbound); } return this; }; /*\ * Set.clear [ method ] ** * Removes all elements from the set \*/ setproto.clear = function () { while (this.length) { this.pop(); } }; /*\ * Set.splice [ method ] ** * Removes range of elements from the set ** - index (number) position of the deletion - count (number) number of element to remove - insertion… (object) #optional elements to insert = (object) set elements that were deleted \*/ setproto.splice = function (index, count, insertion) { index = index < 0 ? mmax(this.length + index, 0) : index; count = mmax(0, mmin(this.length - index, count)); var tail = [], todel = [], args = [], i; for (i = 2; i < arguments.length; i++) { args.push(arguments[i]); } for (i = 0; i < count; i++) { todel.push(this[index + i]); } for (; i < this.length - index; i++) { tail.push(this[index + i]); } var arglen = args.length; for (i = 0; i < arglen + tail.length; i++) { this.items[index + i] = this[index + i] = i < arglen ? args[i] : tail[i - arglen]; } i = this.items.length = this.length -= count - arglen; while (this[i]) { delete this[i++]; } return new Set(todel); }; /*\ * Set.exclude [ method ] ** * Removes given element from the set ** - element (object) element to remove = (boolean) `true` if object was found and removed from the set \*/ setproto.exclude = function (el) { for (var i = 0, ii = this.length; i < ii; i++) if (this[i] == el) { this.splice(i, 1); return true; } return false; }; setproto.insertAfter = function (el) { var i = this.items.length; while (i--) { this.items[i].insertAfter(el); } return this; }; setproto.getBBox = function () { var x = [], y = [], x2 = [], y2 = []; for (var i = this.items.length; i--;) if (!this.items[i].removed) { var box = this.items[i].getBBox(); x.push(box.x); y.push(box.y); x2.push(box.x + box.width); y2.push(box.y + box.height); } x = mmin.apply(0, x); y = mmin.apply(0, y); x2 = mmax.apply(0, x2); y2 = mmax.apply(0, y2); return { x: x, y: y, x2: x2, y2: y2, width: x2 - x, height: y2 - y, cx: x + (x2 - x) / 2, cy: y + (y2 - y) / 2 }; }; setproto.clone = function (s) { s = new Set; for (var i = 0, ii = this.items.length; i < ii; i++) { s.push(this.items[i].clone()); } return s; }; setproto.toString = function () { return "Snap\u2018s set"; }; setproto.type = "set"; // export Snap.Set = Set; Snap.set = function () { var set = new Set; if (arguments.length) { set.push.apply(set, Array.prototype.slice.call(arguments, 0)); } return set; }; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob) { var names = {}, reUnit = /[a-z]+$/i, Str = String; names.stroke = names.fill = "colour"; function getEmpty(item) { var l = item[0]; switch (l.toLowerCase()) { case "t": return [l, 0, 0]; case "m": return [l, 1, 0, 0, 1, 0, 0]; case "r": if (item.length == 4) { return [l, 0, item[2], item[3]]; } else { return [l, 0]; } case "s": if (item.length == 5) { return [l, 1, 1, item[3], item[4]]; } else if (item.length == 3) { return [l, 1, 1]; } else { return [l, 1]; } } } function equaliseTransform(t1, t2, getBBox) { t2 = Str(t2).replace(/\.{3}|\u2026/g, t1); t1 = Snap.parseTransformString(t1) || []; t2 = Snap.parseTransformString(t2) || []; var maxlength = Math.max(t1.length, t2.length), from = [], to = [], i = 0, j, jj, tt1, tt2; for (; i < maxlength; i++) { tt1 = t1[i] || getEmpty(t2[i]); tt2 = t2[i] || getEmpty(tt1); if ((tt1[0] != tt2[0]) || (tt1[0].toLowerCase() == "r" && (tt1[2] != tt2[2] || tt1[3] != tt2[3])) || (tt1[0].toLowerCase() == "s" && (tt1[3] != tt2[3] || tt1[4] != tt2[4])) ) { t1 = Snap._.transform2matrix(t1, getBBox()); t2 = Snap._.transform2matrix(t2, getBBox()); from = [["m", t1.a, t1.b, t1.c, t1.d, t1.e, t1.f]]; to = [["m", t2.a, t2.b, t2.c, t2.d, t2.e, t2.f]]; break; } from[i] = []; to[i] = []; for (j = 0, jj = Math.max(tt1.length, tt2.length); j < jj; j++) { j in tt1 && (from[i][j] = tt1[j]); j in tt2 && (to[i][j] = tt2[j]); } } return { from: path2array(from), to: path2array(to), f: getPath(from) }; } function getNumber(val) { return val; } function getUnit(unit) { return function (val) { return +val.toFixed(3) + unit; }; } function getColour(clr) { return Snap.rgb(clr[0], clr[1], clr[2]); } function getPath(path) { var k = 0, i, ii, j, jj, out, a, b = []; for (i = 0, ii = path.length; i < ii; i++) { out = "["; a = ['"' + path[i][0] + '"']; for (j = 1, jj = path[i].length; j < jj; j++) { a[j] = "val[" + (k++) + "]"; } out += a + "]"; b[i] = out; } return Function("val", "return Snap.path.toString.call([" + b + "])"); } function path2array(path) { var out = []; for (var i = 0, ii = path.length; i < ii; i++) { for (var j = 1, jj = path[i].length; j < jj; j++) { out.push(path[i][j]); } } return out; } Element.prototype.equal = function (name, b) { return eve("snap.util.equal", this, name, b).firstDefined(); }; eve.on("snap.util.equal", function (name, b) { var A, B, a = Str(this.attr(name) || ""), el = this; if (a == +a && b == +b) { return { from: +a, to: +b, f: getNumber }; } if (names[name] == "colour") { A = Snap.color(a); B = Snap.color(b); return { from: [A.r, A.g, A.b, A.opacity], to: [B.r, B.g, B.b, B.opacity], f: getColour }; } if (name == "transform" || name == "gradientTransform" || name == "patternTransform") { if (b instanceof Snap.Matrix) { b = b.toTransformString(); } if (!Snap._.rgTransform.test(b)) { b = Snap._.svgTransform2string(b); } return equaliseTransform(a, b, function () { return el.getBBox(1); }); } if (name == "d" || name == "path") { A = Snap.path.toCubic(a, b); return { from: path2array(A[0]), to: path2array(A[1]), f: getPath(A[0]) }; } if (name == "points") { A = Str(a).split(Snap._.separator); B = Str(b).split(Snap._.separator); return { from: A, to: B, f: function (val) { return val; } }; } aUnit = a.match(reUnit); var bUnit = Str(b).match(reUnit); if (aUnit && aUnit == bUnit) { return { from: parseFloat(a), to: parseFloat(b), f: getUnit(aUnit) }; } else { return { from: this.asPX(name), to: this.asPX(name, b), f: getNumber }; } }); }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob) { var elproto = Element.prototype, has = "hasOwnProperty", supportsTouch = "createTouch" in glob.doc, events = [ "click", "dblclick", "mousedown", "mousemove", "mouseout", "mouseover", "mouseup", "touchstart", "touchmove", "touchend", "touchcancel" ], touchMap = { mousedown: "touchstart", mousemove: "touchmove", mouseup: "touchend" }, getScroll = function (xy, el) { var name = xy == "y" ? "scrollTop" : "scrollLeft", doc = el && el.node ? el.node.ownerDocument : glob.doc; return doc[name in doc.documentElement ? "documentElement" : "body"][name]; }, preventDefault = function () { this.returnValue = false; }, preventTouch = function () { return this.originalEvent.preventDefault(); }, stopPropagation = function () { this.cancelBubble = true; }, stopTouch = function () { return this.originalEvent.stopPropagation(); }, addEvent = (function () { if (glob.doc.addEventListener) { return function (obj, type, fn, element) { var realName = supportsTouch && touchMap[type] ? touchMap[type] : type, f = function (e) { var scrollY = getScroll("y", element), scrollX = getScroll("x", element); if (supportsTouch && touchMap[has](type)) { for (var i = 0, ii = e.targetTouches && e.targetTouches.length; i < ii; i++) { if (e.targetTouches[i].target == obj || obj.contains(e.targetTouches[i].target)) { var olde = e; e = e.targetTouches[i]; e.originalEvent = olde; e.preventDefault = preventTouch; e.stopPropagation = stopTouch; break; } } } var x = e.clientX + scrollX, y = e.clientY + scrollY; return fn.call(element, e, x, y); }; if (type !== realName) { obj.addEventListener(type, f, false); } obj.addEventListener(realName, f, false); return function () { if (type !== realName) { obj.removeEventListener(type, f, false); } obj.removeEventListener(realName, f, false); return true; }; }; } else if (glob.doc.attachEvent) { return function (obj, type, fn, element) { var f = function (e) { e = e || element.node.ownerDocument.window.event; var scrollY = getScroll("y", element), scrollX = getScroll("x", element), x = e.clientX + scrollX, y = e.clientY + scrollY; e.preventDefault = e.preventDefault || preventDefault; e.stopPropagation = e.stopPropagation || stopPropagation; return fn.call(element, e, x, y); }; obj.attachEvent("on" + type, f); var detacher = function () { obj.detachEvent("on" + type, f); return true; }; return detacher; }; } })(), drag = [], dragMove = function (e) { var x = e.clientX, y = e.clientY, scrollY = getScroll("y"), scrollX = getScroll("x"), dragi, j = drag.length; while (j--) { dragi = drag[j]; if (supportsTouch) { var i = e.touches && e.touches.length, touch; while (i--) { touch = e.touches[i]; if (touch.identifier == dragi.el._drag.id || dragi.el.node.contains(touch.target)) { x = touch.clientX; y = touch.clientY; (e.originalEvent ? e.originalEvent : e).preventDefault(); break; } } } else { e.preventDefault(); } var node = dragi.el.node, o, next = node.nextSibling, parent = node.parentNode, display = node.style.display; // glob.win.opera && parent.removeChild(node); // node.style.display = "none"; // o = dragi.el.paper.getElementByPoint(x, y); // node.style.display = display; // glob.win.opera && (next ? parent.insertBefore(node, next) : parent.appendChild(node)); // o && eve("snap.drag.over." + dragi.el.id, dragi.el, o); x += scrollX; y += scrollY; eve("snap.drag.move." + dragi.el.id, dragi.move_scope || dragi.el, x - dragi.el._drag.x, y - dragi.el._drag.y, x, y, e); } }, dragUp = function (e) { Snap.unmousemove(dragMove).unmouseup(dragUp); var i = drag.length, dragi; while (i--) { dragi = drag[i]; dragi.el._drag = {}; eve("snap.drag.end." + dragi.el.id, dragi.end_scope || dragi.start_scope || dragi.move_scope || dragi.el, e); } drag = []; }; /*\ * Element.click [ method ] ** * Adds a click event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unclick [ method ] ** * Removes a click event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.dblclick [ method ] ** * Adds a double click event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.undblclick [ method ] ** * Removes a double click event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.mousedown [ method ] ** * Adds a mousedown event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unmousedown [ method ] ** * Removes a mousedown event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.mousemove [ method ] ** * Adds a mousemove event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unmousemove [ method ] ** * Removes a mousemove event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.mouseout [ method ] ** * Adds a mouseout event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unmouseout [ method ] ** * Removes a mouseout event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.mouseover [ method ] ** * Adds a mouseover event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unmouseover [ method ] ** * Removes a mouseover event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.mouseup [ method ] ** * Adds a mouseup event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.unmouseup [ method ] ** * Removes a mouseup event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.touchstart [ method ] ** * Adds a touchstart event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.untouchstart [ method ] ** * Removes a touchstart event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.touchmove [ method ] ** * Adds a touchmove event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.untouchmove [ method ] ** * Removes a touchmove event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.touchend [ method ] ** * Adds a touchend event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.untouchend [ method ] ** * Removes a touchend event handler from the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.touchcancel [ method ] ** * Adds a touchcancel event handler to the element - handler (function) handler for the event = (object) @Element \*/ /*\ * Element.untouchcancel [ method ] ** * Removes a touchcancel event handler from the element - handler (function) handler for the event = (object) @Element \*/ for (var i = events.length; i--;) { (function (eventName) { Snap[eventName] = elproto[eventName] = function (fn, scope) { if (Snap.is(fn, "function")) { this.events = this.events || []; this.events.push({ name: eventName, f: fn, unbind: addEvent(this.node || document, eventName, fn, scope || this) }); } return this; }; Snap["un" + eventName] = elproto["un" + eventName] = function (fn) { var events = this.events || [], l = events.length; while (l--) if (events[l].name == eventName && (events[l].f == fn || !fn)) { events[l].unbind(); events.splice(l, 1); !events.length && delete this.events; return this; } return this; }; })(events[i]); } /*\ * Element.hover [ method ] ** * Adds hover event handlers to the element - f_in (function) handler for hover in - f_out (function) handler for hover out - icontext (object) #optional context for hover in handler - ocontext (object) #optional context for hover out handler = (object) @Element \*/ elproto.hover = function (f_in, f_out, scope_in, scope_out) { return this.mouseover(f_in, scope_in).mouseout(f_out, scope_out || scope_in); }; /*\ * Element.unhover [ method ] ** * Removes hover event handlers from the element - f_in (function) handler for hover in - f_out (function) handler for hover out = (object) @Element \*/ elproto.unhover = function (f_in, f_out) { return this.unmouseover(f_in).unmouseout(f_out); }; var draggable = []; // SIERRA unclear what _context_ refers to for starting, ending, moving the drag gesture. // SIERRA Element.drag(): _x position of the mouse_: Where are the x/y values offset from? // SIERRA Element.drag(): much of this member's doc appears to be duplicated for some reason. // SIERRA Unclear about this sentence: _Additionally following drag events will be triggered: drag.start. on start, drag.end. on end and drag.move. on every move._ Is there a global _drag_ object to which you can assign handlers keyed by an element's ID? /*\ * Element.drag [ method ] ** * Adds event handlers for an element's drag gesture ** - onmove (function) handler for moving - onstart (function) handler for drag start - onend (function) handler for drag end - mcontext (object) #optional context for moving handler - scontext (object) #optional context for drag start handler - econtext (object) #optional context for drag end handler * Additionaly following `drag` events are triggered: `drag.start.` on start, * `drag.end.` on end and `drag.move.` on every move. When element is dragged over another element * `drag.over.` fires as well. * * Start event and start handler are called in specified context or in context of the element with following parameters: o x (number) x position of the mouse o y (number) y position of the mouse o event (object) DOM event object * Move event and move handler are called in specified context or in context of the element with following parameters: o dx (number) shift by x from the start point o dy (number) shift by y from the start point o x (number) x position of the mouse o y (number) y position of the mouse o event (object) DOM event object * End event and end handler are called in specified context or in context of the element with following parameters: o event (object) DOM event object = (object) @Element \*/ elproto.drag = function (onmove, onstart, onend, move_scope, start_scope, end_scope) { if (!arguments.length) { var origTransform; return this.drag(function (dx, dy) { this.attr({ transform: origTransform + (origTransform ? "T" : "t") + [dx, dy] }); }, function () { origTransform = this.transform().local; }); } function start(e, x, y) { (e.originalEvent || e).preventDefault(); this._drag.x = x; this._drag.y = y; this._drag.id = e.identifier; !drag.length && Snap.mousemove(dragMove).mouseup(dragUp); drag.push({el: this, move_scope: move_scope, start_scope: start_scope, end_scope: end_scope}); onstart && eve.on("snap.drag.start." + this.id, onstart); onmove && eve.on("snap.drag.move." + this.id, onmove); onend && eve.on("snap.drag.end." + this.id, onend); eve("snap.drag.start." + this.id, start_scope || move_scope || this, x, y, e); } this._drag = {}; draggable.push({el: this, start: start}); this.mousedown(start); return this; }; /* * Element.onDragOver [ method ] ** * Shortcut to assign event handler for `drag.over.` event, where `id` is the element's `id` (see @Element.id) - f (function) handler for event, first argument would be the element you are dragging over \*/ // elproto.onDragOver = function (f) { // f ? eve.on("snap.drag.over." + this.id, f) : eve.unbind("snap.drag.over." + this.id); // }; /*\ * Element.undrag [ method ] ** * Removes all drag event handlers from the given element \*/ elproto.undrag = function () { var i = draggable.length; while (i--) if (draggable[i].el == this) { this.unmousedown(draggable[i].start); draggable.splice(i, 1); eve.unbind("snap.drag.*." + this.id); } !draggable.length && Snap.unmousemove(dragMove).unmouseup(dragUp); return this; }; }); // Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob) { var elproto = Element.prototype, pproto = Paper.prototype, rgurl = /^\s*url\((.+)\)/, Str = String, $ = Snap._.$; Snap.filter = {}; /*\ * Paper.filter [ method ] ** * Creates a `` element ** - filstr (string) SVG fragment of filter provided as a string = (object) @Element * Note: It is recommended to use filters embedded into the page inside an empty SVG element. > Usage | var f = paper.filter(''), | c = paper.circle(10, 10, 10).attr({ | filter: f | }); \*/ pproto.filter = function (filstr) { var paper = this; if (paper.type != "svg") { paper = paper.paper; } var f = Snap.parse(Str(filstr)), id = Snap._.id(), width = paper.node.offsetWidth, height = paper.node.offsetHeight, filter = $("filter"); $(filter, { id: id, filterUnits: "userSpaceOnUse" }); filter.appendChild(f.node); paper.defs.appendChild(filter); return new Element(filter); }; eve.on("snap.util.getattr.filter", function () { eve.stop(); var p = $(this.node, "filter"); if (p) { var match = Str(p).match(rgurl); return match && Snap.select(match[1]); } }); eve.on("snap.util.attr.filter", function (value) { if (value instanceof Element && value.type == "filter") { eve.stop(); var id = value.node.id; if (!id) { $(value.node, {id: value.id}); id = value.id; } $(this.node, { filter: Snap.url(id) }); } if (!value || value == "none") { eve.stop(); this.node.removeAttribute("filter"); } }); /*\ * Snap.filter.blur [ method ] ** * Returns an SVG markup string for the blur filter ** - x (number) amount of horizontal blur, in pixels - y (number) #optional amount of vertical blur, in pixels = (string) filter representation > Usage | var f = paper.filter(Snap.filter.blur(5, 10)), | c = paper.circle(10, 10, 10).attr({ | filter: f | }); \*/ Snap.filter.blur = function (x, y) { if (x == null) { x = 2; } var def = y == null ? x : [x, y]; return Snap.format('\', { def: def }); }; Snap.filter.blur.toString = function () { return this(); }; /*\ * Snap.filter.shadow [ method ] ** * Returns an SVG markup string for the shadow filter ** - dx (number) #optional horizontal shift of the shadow, in pixels - dy (number) #optional vertical shift of the shadow, in pixels - blur (number) #optional amount of blur - color (string) #optional color of the shadow - opacity (number) #optional `0..1` opacity of the shadow * or - dx (number) #optional horizontal shift of the shadow, in pixels - dy (number) #optional vertical shift of the shadow, in pixels - color (string) #optional color of the shadow - opacity (number) #optional `0..1` opacity of the shadow * which makes blur default to `4`. Or - dx (number) #optional horizontal shift of the shadow, in pixels - dy (number) #optional vertical shift of the shadow, in pixels - opacity (number) #optional `0..1` opacity of the shadow = (string) filter representation > Usage | var f = paper.filter(Snap.filter.shadow(0, 2, 3)), | c = paper.circle(10, 10, 10).attr({ | filter: f | }); \*/ Snap.filter.shadow = function (dx, dy, blur, color, opacity) { if (typeof blur == "string") { color = blur; opacity = color; blur = 4; } if (typeof color != "string") { opacity = color; color = "#000"; } color = color || "#000"; if (blur == null) { blur = 4; } if (opacity == null) { opacity = 1; } if (dx == null) { dx = 0; dy = 2; } if (dy == null) { dy = dx; } color = Snap.color(color); return Snap.format('', { color: color, dx: dx, dy: dy, blur: blur, opacity: opacity }); }; Snap.filter.shadow.toString = function () { return this(); }; /*\ * Snap.filter.grayscale [ method ] ** * Returns an SVG markup string for the grayscale filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.grayscale = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { a: 0.2126 + 0.7874 * (1 - amount), b: 0.7152 - 0.7152 * (1 - amount), c: 0.0722 - 0.0722 * (1 - amount), d: 0.2126 - 0.2126 * (1 - amount), e: 0.7152 + 0.2848 * (1 - amount), f: 0.0722 - 0.0722 * (1 - amount), g: 0.2126 - 0.2126 * (1 - amount), h: 0.0722 + 0.9278 * (1 - amount) }); }; Snap.filter.grayscale.toString = function () { return this(); }; /*\ * Snap.filter.sepia [ method ] ** * Returns an SVG markup string for the sepia filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.sepia = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { a: 0.393 + 0.607 * (1 - amount), b: 0.769 - 0.769 * (1 - amount), c: 0.189 - 0.189 * (1 - amount), d: 0.349 - 0.349 * (1 - amount), e: 0.686 + 0.314 * (1 - amount), f: 0.168 - 0.168 * (1 - amount), g: 0.272 - 0.272 * (1 - amount), h: 0.534 - 0.534 * (1 - amount), i: 0.131 + 0.869 * (1 - amount) }); }; Snap.filter.sepia.toString = function () { return this(); }; /*\ * Snap.filter.saturate [ method ] ** * Returns an SVG markup string for the saturate filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.saturate = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { amount: 1 - amount }); }; Snap.filter.saturate.toString = function () { return this(); }; /*\ * Snap.filter.hueRotate [ method ] ** * Returns an SVG markup string for the hue-rotate filter ** - angle (number) angle of rotation = (string) filter representation \*/ Snap.filter.hueRotate = function (angle) { angle = angle || 0; return Snap.format('', { angle: angle }); }; Snap.filter.hueRotate.toString = function () { return this(); }; /*\ * Snap.filter.invert [ method ] ** * Returns an SVG markup string for the invert filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.invert = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { amount: amount, amount2: 1 - amount }); }; Snap.filter.invert.toString = function () { return this(); }; /*\ * Snap.filter.brightness [ method ] ** * Returns an SVG markup string for the brightness filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.brightness = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { amount: amount }); }; Snap.filter.brightness.toString = function () { return this(); }; /*\ * Snap.filter.contrast [ method ] ** * Returns an SVG markup string for the contrast filter ** - amount (number) amount of filter (`0..1`) = (string) filter representation \*/ Snap.filter.contrast = function (amount) { if (amount == null) { amount = 1; } return Snap.format('', { amount: amount, amount2: .5 - amount / 2 }); }; Snap.filter.contrast.toString = function () { return this(); }; }); // Copyright (c) 2014 Adobe Systems Incorporated. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. Snap.plugin(function (Snap, Element, Paper, glob, Fragment) { var box = Snap._.box, is = Snap.is, firstLetter = /^[^a-z]*([tbmlrc])/i, toString = function () { return "T" + this.dx + "," + this.dy; }; /*\ * Element.getAlign [ method ] ** * Returns shift needed to align the element relatively to given element. * If no elements specified, parent `` container will be used. - el (object) @optional alignment element - way (string) one of six values: `"top"`, `"middle"`, `"bottom"`, `"left"`, `"center"`, `"right"` = (object|string) Object in format `{dx: , dy: }` also has a string representation as a transformation string > Usage | el.transform(el.getAlign(el2, "top")); * or | var dy = el.getAlign(el2, "top").dy; \*/ Element.prototype.getAlign = function (el, way) { if (way == null && is(el, "string")) { way = el; el = null; } el = el || this.paper; var bx = el.getBBox ? el.getBBox() : box(el), bb = this.getBBox(), out = {}; way = way && way.match(firstLetter); way = way ? way[1].toLowerCase() : "c"; switch (way) { case "t": out.dx = 0; out.dy = bx.y - bb.y; break; case "b": out.dx = 0; out.dy = bx.y2 - bb.y2; break; case "m": out.dx = 0; out.dy = bx.cy - bb.cy; break; case "l": out.dx = bx.x - bb.x; out.dy = 0; break; case "r": out.dx = bx.x2 - bb.x2; out.dy = 0; break; default: out.dx = bx.cx - bb.cx; out.dy = 0; break; } out.toString = toString; return out; }; /*\ * Element.align [ method ] ** * Aligns the element relatively to given one via transformation. * If no elements specified, parent `` container will be used. - el (object) @optional alignment element - way (string) one of six values: `"top"`, `"middle"`, `"bottom"`, `"left"`, `"center"`, `"right"` = (object) this element > Usage | el.align(el2, "top"); * or | el.align("middle"); \*/ Element.prototype.align = function (el, way) { return this.transform("..." + this.getAlign(el, way)); }; }); return Snap; }));