202 lines
7.5 KiB
HTML
202 lines
7.5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Tutorial</title>
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<link rel="stylesheet" href="../../doc/fonts/stylesheet.css">
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<link rel="stylesheet" href="../../doc/css/prism.css">
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<style media="screen">
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pre.code {
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-moz-border-radius: 10px;
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-webkit-border-radius: 10px;
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border-radius: 10px;
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padding: 10px;
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height: 280px;
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overflow: auto;
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background: #181818;
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border: solid 2px #181818;
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}
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#codelines {
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display: none;
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}
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#svg {
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-moz-border-radius: 10px;
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-webkit-border-radius: 10px;
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border-radius: 10px;
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border: solid 2px #ccc;
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width: 300px;
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height: 300px;
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float: left;
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margin-right: 10px;
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font: 1em source-sans-pro, Source Sans Pro, Helvetica, sans-serif;
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}
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</style>
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<script src="../../dist/snap.svg-min.js"></script>
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<script src="../../doc/js/prism.js"></script>
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<script>
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var S;
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window.onload = function () {
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var s = Snap(850, 35);
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function chooser(s, count) {
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var loop = "M35,65a30,30,0,0,0,0-60a30,30,0,0,0,0,60",
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line = "M35,65a30,30,0,0,0,0-60a30,30,0,0,0,0,60c30,0,60-60,90-60a30,30,0,0,1,0,60a30,30,0,0,1,0-60",
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l1 = Snap.path.getTotalLength(loop),
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l2 = Snap.path.getTotalLength(line),
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cur = 1,
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p = s.path({
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path: loop,
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fill: "none",
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stroke: "#f00",
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strokeWidth: 6,
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strokeLinecap: "round"
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});
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for (var i = 1; i <= count; i++) {
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s.text(90 * i - 55, 49, i).attr({
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font: "45px source-sans-pro, Source Sans Pro, Helvetica, sans-serif",
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textAnchor: "middle"
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});
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(function (i) {
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s.circle(90 * i - 55, 35, 40).attr({
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opacity: 0
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}).click(eve.f("tut.click", i - 1));
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}(i));
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}
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s.path("M11.166,23.963L22.359,17.5c1.43-0.824,1.43-2.175,0-3L11.166,8.037c-1.429-0.826-2.598-0.15-2.598,1.5v12.926C8.568,24.113,9.737,24.789,11.166,23.963z").transform("t" + (90 * (count + 1) - 68) + ",18s2");
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var but = s.circle(90 * (count + 1) - 55, 35, 30).attr({
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fillOpacity: 0,
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stroke: "#333",
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strokeWidth: 2
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});
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eve.on("tut.click", function (I) {
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p.attr({
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path: loop,
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transform: "t" + (90 * I) + ",0"
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});
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cur = I + 1;
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});
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function frameHandler(frame) {
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function anim() {
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cur++;
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if (cur > count) {
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return;
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}
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if (typeof frame == "function") {
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frame(cur);
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}
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Snap.animate(0, l2 - l1, function (val) {
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p.attr({
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path: Snap.path.getSubpath(line, val, val + l1)
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});
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}, 500, function () {
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p.attr({
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path: loop,
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transform: p.transform() + "t90,0"
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});
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});
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}
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if (typeof frame == "function") {
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but.click(anim);
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} else {
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anim();
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}
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}
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return frameHandler;
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}
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var g = s.g();
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g.attr({
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transform: "s.5,.5,0,0"
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});
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var str = "",
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code = document.getElementById("code");
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var domcodelines = document.querySelectorAll("#codelines li"),
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codelines = [],
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replacers = {},
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lines = [],
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callback = function (i) {
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lines = [];
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for (var j = 1; j <= i; j++) {
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replacers[j - 1] && lines.pop();
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lines.push(codelines[j - 1]);
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}
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Snap("#svg").clear();
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str = lines.join("\n");
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eval(str);
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code.innerHTML = Prism.highlight(str, Prism.languages.javascript);
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code.parentNode.scrollTop = code.parentNode.scrollTopMax || 1e9;
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};
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for (var i = 0, ii = domcodelines.length; i < ii; i++) {
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codelines[i] = domcodelines[i].innerHTML;
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if (domcodelines[i].className == "replace") {
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replacers[i] = true;
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}
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}
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callback(1);
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chooser(g, codelines.length)(callback);
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eve.on("tut.click", function (I) {
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callback(I + 1);
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});
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};
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</script>
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</head>
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<body>
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<ol id="codelines">
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<li>// Simple dashed pattern on circle with mask
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// Lets connect mask and circle together. Also useful if we have a path
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// and can’t calculate offset easily.
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var s = Snap("#svg");
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// So, lets start with an empty circle.
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// It’s important that it will not have any attributes set
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var bigCircle = s.circle(150, 150, 100);</li>
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<li>//-----------------------------------------------------
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// Lets use it again for patterned fill
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var c1 = bigCircle.use();
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// Create pattern
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var p = s.path("M110,95,95,110M115,100,100,115").attr({
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fill: "none",
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stroke: "#bada55",
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strokeWidth: 4
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});
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var ptrn = p.pattern(100, 100, 10, 10);
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// and apply some nice attributes
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c1.attr({
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fill: ptrn
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});</li>
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<li>//-----------------------------------------------------
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// Lets use it for stroke
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var c2 = bigCircle.use();
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c2.attr({
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fill: "none",
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stroke: "#000",
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strokeWidth: 6
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});</li>
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<li>// Lets create a masking circle</li>
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<li>var ring = bigCircle.use();
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ring.attr({
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fill: "none",
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stroke: "#000",
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strokeWidth: 20 // we need only inner 10px of it
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});</li>
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<li>// Hide bigCircle by moving it to <defs>
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bigCircle.toDefs();</li>
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<li>var mask = s.mask();</li>
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<li>// Background rect:
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mask.add(s.rect(0, 0, "100%", "100%").attr({fill: "#fff"}));</li>
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<li>// and our ring
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mask.add(ring);</li>
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<li>c1.attr({
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mask: mask
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});</li>
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<li>//Now, let’s animate bigCircle:</li>
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<li>bigCircle.animate({r: 50}, 5e3, mina.elastic);
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// Despite bigCircle is not visible it affect all 3 “uses” of it.</li>
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</ol>
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<svg id="svg"></svg>
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<pre class="javascript code"><code data-language="javascript" class="language-javascript" id="code"></code></pre>
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<svg width="0" height="0">
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<pattern id="pattern" patternUnits="userSpaceOnUse" x="0" y="0" width="10" height="10" viewBox="0 0 10 10">
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<path d="M-5,0,10,15M0-5,15,10" stroke="white" stroke-width="5"/>
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</pattern>
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</svg>
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</body>
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</html> |