2012-05-21 20:32:26 +00:00
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2013-04-04 11:51:15 +00:00
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$Id: markers.html,v 1.10 2012/11/18 10:54:12 gaudenz Exp $
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2012-05-21 20:32:26 +00:00
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Copyright (c) 2006-2010, JGraph Ltd
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Markers example for mxGraph. This example demonstrates creating
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custom markers and customizing the built-in markers.
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-->
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<html>
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<head>
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<title>Markers example for mxGraph</title>
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<!-- Sets the basepath for the library if not in same directory -->
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<script type="text/javascript">
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mxBasePath = '../src';
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</script>
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<!-- Loads and initializes the library -->
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<script type="text/javascript" src="../src/js/mxClient.js"></script>
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<!-- Example code -->
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<script type="text/javascript">
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// Program starts here. Creates a sample graph in the
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// DOM node with the specified ID. This function is invoked
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// from the onLoad event handler of the document (see below).
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function main(container)
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{
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// Checks if the browser is supported
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if (!mxClient.isBrowserSupported())
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{
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// Displays an error message if the browser is not supported.
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mxUtils.error('Browser is not supported!', 200, false);
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}
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else
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{
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// Enables crisp rendering in SVG
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mxShape.prototype.crisp = true;
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mxEllipse.prototype.crisp = false;
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mxDoubleEllipse.prototype.crisp = false;
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mxArrow.prototype.crisp = false;
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mxConnector.prototype.allowCrispMarkers = true;
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// Enables guides
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mxGraphHandler.prototype.guidesEnabled = true;
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mxEdgeHandler.prototype.snapToTerminals = true;
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// Defines custom marker
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mxMarker.markers['dash'] = function(node, type, pe, nx, ny, strokewidth, size, scale, isVml)
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{
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nx = nx * (size + strokewidth);
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ny = ny * (size + strokewidth);
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if (isVml)
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{
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node.setAttribute('path', 'm' + Math.floor(pe.x - nx / 2- ny / 2) + ' ' + Math.floor(pe.y - ny / 2 + nx / 2) +
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' l ' + Math.floor(pe.x + ny / 2 - 3 * nx / 2) + ' ' + Math.floor(pe.y - 3 * ny / 2 - nx / 2) +
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' e');
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}
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else
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{
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node.setAttribute('d', 'M ' + (pe.x - nx / 2 - ny / 2) + ' ' + (pe.y - ny / 2 + nx / 2) +
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' L ' + (pe.x + ny / 2 - 3 * nx / 2) + ' ' + (pe.y - 3 * ny / 2 - nx / 2) +
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' z');
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}
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// Returns the offset for the edge
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return new mxPoint(0, 0);
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};
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// Tape Shape, supports size style
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function MessageShape() { };
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MessageShape.prototype = new mxCylinder();
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MessageShape.prototype.constructor = MessageShape;
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MessageShape.prototype.redrawPath = function(path, x, y, w, h, isForeground)
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{
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if (isForeground)
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{
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path.moveTo(0, 0);
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path.lineTo(w / 2, h / 2);
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path.lineTo(w, 0);
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path.end();
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}
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else
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{
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path.moveTo(0, 0);
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path.lineTo(w, 0);
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path.lineTo(w, h);
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path.lineTo(0, h);
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path.close();
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}
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};
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mxCellRenderer.prototype.defaultShapes['message'] = MessageShape;
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// Custom edge shape
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function LinkShape() { };
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LinkShape.prototype = new mxArrow();
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LinkShape.prototype.constructor = LinkShape;
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LinkShape.prototype.enableFill = false;
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LinkShape.prototype.addPipe = true;
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LinkShape.prototype.redrawPath = function(path, x, y, w, h)
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{
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// All points are offset
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path.translate.x -= x;
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path.translate.y -= y;
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// Geometry of arrow
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var width = 10 * this.scale;
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// Base vector (between end points)
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var p0 = this.points[0];
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var pe = this.points[this.points.length - 1];
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var dx = pe.x - p0.x;
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var dy = pe.y - p0.y;
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var dist = Math.sqrt(dx * dx + dy * dy);
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var length = dist;
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// Computes the norm and the inverse norm
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var nx = dx / dist;
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var ny = dy / dist;
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var basex = length * nx;
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var basey = length * ny;
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var floorx = width * ny/3;
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var floory = -width * nx/3;
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// Computes points
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var p0x = p0.x - floorx / 2;
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var p0y = p0.y - floory / 2;
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var p1x = p0x + floorx;
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var p1y = p0y + floory;
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var p2x = p1x + basex;
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var p2y = p1y + basey;
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var p3x = p2x + floorx;
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var p3y = p2y + floory;
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// p4 not necessary
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var p5x = p3x - 3 * floorx;
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var p5y = p3y - 3 * floory;
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//path.moveTo(p0x, p0y);
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path.moveTo(p1x, p1y);
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path.lineTo(p2x, p2y);
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path.moveTo(p5x + floorx, p5y + floory);
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path.lineTo(p0x, p0y);
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path.end();
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};
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mxCellRenderer.prototype.defaultShapes['link'] = LinkShape;
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// Creates the graph
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var graph = new mxGraph(container);
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// Sets default styles
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graph.getStylesheet().getDefaultVertexStyle()['fillColor'] = '#FFFFFF';
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graph.getStylesheet().getDefaultVertexStyle()['strokeColor'] = '#000000';
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graph.getStylesheet().getDefaultVertexStyle()['fontColor'] = '#000000';
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graph.getStylesheet().getDefaultVertexStyle()['fontStyle'] = '1';
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graph.getStylesheet().getDefaultEdgeStyle()['strokeColor'] = '#000000';
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graph.getStylesheet().getDefaultEdgeStyle()['fontColor'] = '#000000';
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graph.getStylesheet().getDefaultEdgeStyle()['fontStyle'] = '0';
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graph.getStylesheet().getDefaultEdgeStyle()['fontStyle'] = '0';
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graph.getStylesheet().getDefaultEdgeStyle()['startSize'] = '8';
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graph.getStylesheet().getDefaultEdgeStyle()['endSize'] = '8';
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// Populates the graph
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var parent = graph.getDefaultParent();
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graph.getModel().beginUpdate();
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try
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{
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var v1 = graph.insertVertex(parent, null, 'v1', 20, 20, 80, 30);
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var v2 = graph.insertVertex(parent, null, 'v2', 440, 20, 80, 30);
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var e1 = graph.insertEdge(parent, null, '', v1, v2, 'dashed=1;'+
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'startArrow=oval;endArrow=block;sourcePerimeterSpacing=4;startFill=0;endFill=0;');
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var e11 = graph.insertVertex(e1, null, 'Label', 0, 0, 20, 14,
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'shape=message;labelBackgroundColor=#ffffff;labelPosition=left;align=right;fontStyle=0;');
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e11.geometry.offset = new mxPoint(-10, -7);
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e11.geometry.relative = true;
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e11.connectable = false;
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var v3 = graph.insertVertex(parent, null, 'v3', 20, 120, 80, 30);
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var v4 = graph.insertVertex(parent, null, 'v4', 440, 120, 80, 30);
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var e2 = graph.insertEdge(parent, null, 'Label', v3, v4,
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'startArrow=dash;startSize=12;endArrow=block;labelBackgroundColor=#FFFFFF;');
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var v5 = graph.insertVertex(parent, null, 'v5', 40, 220, 40, 40, 'shape=ellipse;perimeter=ellipsePerimeter;');
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var v6 = graph.insertVertex(parent, null, 'v6', 460, 220, 40, 40, 'shape=doubleEllipse;perimeter=ellipsePerimeter;');
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var e3 = graph.insertEdge(parent, null, 'Link', v5, v6,
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'shape=link;labelBackgroundColor=#FFFFFF;');
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}
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finally
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{
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graph.getModel().endUpdate();
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}
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}
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};
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</script>
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</head>
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<body onload="main(document.getElementById('graphContainer'))">
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<div id="graphContainer"
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2012-12-18 13:09:38 +00:00
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style="overflow:hidden;position:relative;width:641px;height:381px;border:1px solid gray;cursor:default;">
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2012-05-21 20:32:26 +00:00
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</div>
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</body>
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</html>
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