davidjgraph · December 2, 2013 13:43
diff --git a/customEdge.html b/customEdge.html
 <!--
  $Id: markers.html,v 1.4 2013/10/28 08:44:55 gaudenz Exp $
  Copyright (c) 2006-2014, JGraph Ltd
  
  Demonstrates creating a custom edge in mxGraph
 -->
 <html>
 <head>
 	<title>Custom edge example for mxGraph</title>

 	<!-- Sets the basepath for the library if not in same directory -->
 	<script type="text/javascript">
 		mxBasePath = '../src';
 	</script>

 	<!-- Loads and initializes the library -->
 	<script type="text/javascript" src="../src/js/mxClient.js"></script>

 	<!-- Example code -->
 	<script type="text/javascript">
 		// Program starts here. Creates a sample graph in the
 		// DOM node with the specified ID. This function is invoked
 		// from the onLoad event handler of the document (see below).
 		function main(container)
 		{
 			// Checks if the browser is supported
 			if (!mxClient.isBrowserSupported())
 			{
 				// Displays an error message if the browser is not supported.
 				mxUtils.error('Browser is not supported!', 200, false);
 			}
 			else
 			{
 				// Enables guides
 				mxGraphHandler.prototype.guidesEnabled = true;
 				mxEdgeHandler.prototype.snapToTerminals = true;

 				// Define the constructor of the new shape
 				function LinkShape()
 				{
 					mxArrow.call(this);
 				};
 				// Use mxUtils.extend 
 				mxUtils.extend(LinkShape, mxArrow);
 				LinkShape.prototype.paintEdgeShape = function(c, pts)
 				{
 					var width = 10;

 					// Base vector (between end points)
 					var p0 = pts[0];
 					var pe = pts[pts.length - 1];
 					
 					var dx = pe.x - p0.x;
 					var dy = pe.y - p0.y;
 					var dist = Math.sqrt(dx * dx + dy * dy);
 					var length = dist;
 					
 					// Computes the norm and the inverse norm
 					var nx = dx / dist;
 					var ny = dy / dist;
 					var basex = length * nx;
 					var basey = length * ny;
 					var floorx = width * ny/3;
 					var floory = -width * nx/3;
 					
 					// Computes points
 					var p0x = p0.x - floorx / 2;
 					var p0y = p0.y - floory / 2;
 					var p1x = p0x + floorx;
 					var p1y = p0y + floory;
 					var p2x = p1x + basex;
 					var p2y = p1y + basey;
 					var p3x = p2x + floorx;
 					var p3y = p2y + floory;
 					// p4 not necessary
 					var p5x = p3x - 3 * floorx;
 					var p5y = p3y - 3 * floory;
 					
 					c.begin();
 					c.moveTo(p1x, p1y);
 					c.lineTo(p2x, p2y);
 					c.moveTo(p5x + floorx, p5y + floory);
 					c.lineTo(p0x, p0y);
 					c.stroke();
 				};

 				// Registers the link shape
 				mxCellRenderer.prototype.defaultShapes['link'] = LinkShape;

 				// Creates the graph
 				var graph = new mxGraph(container);
 				
 				// Sets default styles
 				var style = graph.getStylesheet().getDefaultVertexStyle();
 				style['fillColor'] = '#FFFFFF';
 				style['strokeColor'] = '#000000';
 				style['fontColor'] = '#000000';
 				style['fontStyle'] = '1';
 				
 				style = graph.getStylesheet().getDefaultEdgeStyle();
 				style['strokeColor'] = '#000000';
 				style['fontColor'] = '#000000';
 				style['fontStyle'] = '0';
 				style['fontStyle'] = '0';
 				style['startSize'] = '8';
 				style['endSize'] = '8';

 				// Populates the graph
 				var parent = graph.getDefaultParent();
 								
 				graph.getModel().beginUpdate();
 				try
 				{
 					var v1 = graph.insertVertex(parent, null, 'v1', 20, 20, 80, 30);
 					var v2 = graph.insertVertex(parent, null, 'v2', 440, 20, 80, 30);
 					var e1 = graph.insertEdge(parent, null, '', v1, v2, 'dashed=1;'+
 						'startArrow=oval;endArrow=block;sourcePerimeterSpacing=4;startFill=0;endFill=0;');
 					var e11 = graph.insertVertex(e1, null, 'Label', 0, 0, 20, 14,
 						'shape=message;labelBackgroundColor=#ffffff;labelPosition=left;spacingRight=2;align=right;fontStyle=0;');
 					e11.geometry.offset = new mxPoint(-10, -7);
 					e11.geometry.relative = true;
 					e11.connectable = false;
 					
 					var v3 = graph.insertVertex(parent, null, 'v3', 20, 120, 80, 30);
 					var v4 = graph.insertVertex(parent, null, 'v4', 440, 120, 80, 30);
 					var e2 = graph.insertEdge(parent, null, 'Label', v3, v4,
 						'startArrow=dash;startSize=12;endArrow=block;labelBackgroundColor=#FFFFFF;');

 					var v5 = graph.insertVertex(parent, null, 'v5', 40, 220, 40, 40, 'shape=ellipse;perimeter=ellipsePerimeter;');
 					var v6 = graph.insertVertex(parent, null, 'v6', 460, 220, 40, 40, 'shape=doubleEllipse;perimeter=ellipsePerimeter;');
 					var e3 = graph.insertEdge(parent, null, 'Link', v5, v6,
 						'shape=link;labelBackgroundColor=#FFFFFF;');
 				}
 				finally
 				{
 					graph.getModel().endUpdate();
 				}
 			}
 		};
 	</script>
 </head>
 <body onload="main(document.getElementById('graphContainer'))">
 	<div id="graphContainer"
 		style="overflow:hidden;position:relative;width:641px;height:381px;border:1px solid gray;cursor:default;">
 	</div>
 </body>
 </html>
	<!--
	$Id: markers.html,v 1.4 2013/10/28 08:44:55 gaudenz Exp $
	Copyright (c) 2006-2014, JGraph Ltd

	Demonstrates creating a custom edge in mxGraph
	-->
	<html>
	<head>
	<title>Custom edge example for mxGraph</title>

	<!-- Sets the basepath for the library if not in same directory -->
	<script type="text/javascript">
	mxBasePath = '../src';
	</script>

	<!-- Loads and initializes the library -->
	<script type="text/javascript" src="../src/js/mxClient.js"></script>

	<!-- Example code -->
	<script type="text/javascript">
	// Program starts here. Creates a sample graph in the
	// DOM node with the specified ID. This function is invoked
	// from the onLoad event handler of the document (see below).
	function main(container)
	{
	// Checks if the browser is supported
	if (!mxClient.isBrowserSupported())
	{
	// Displays an error message if the browser is not supported.
	mxUtils.error('Browser is not supported!', 200, false);
	}
	else
	{
	// Enables guides
	mxGraphHandler.prototype.guidesEnabled = true;
	mxEdgeHandler.prototype.snapToTerminals = true;

	// Define the constructor of the new shape
	function LinkShape()
	{
	mxArrow.call(this);
	};
	// Use mxUtils.extend
	mxUtils.extend(LinkShape, mxArrow);
	LinkShape.prototype.paintEdgeShape = function(c, pts)
	{
	var width = 10;

	// Base vector (between end points)
	var p0 = pts[0];
	var pe = pts[pts.length - 1];

	var dx = pe.x - p0.x;
	var dy = pe.y - p0.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	var length = dist;

	// Computes the norm and the inverse norm
	var nx = dx / dist;
	var ny = dy / dist;
	var basex = length * nx;
	var basey = length * ny;
	var floorx = width * ny/3;
	var floory = -width * nx/3;

	// Computes points
	var p0x = p0.x - floorx / 2;
	var p0y = p0.y - floory / 2;
	var p1x = p0x + floorx;
	var p1y = p0y + floory;
	var p2x = p1x + basex;
	var p2y = p1y + basey;
	var p3x = p2x + floorx;
	var p3y = p2y + floory;
	// p4 not necessary
	var p5x = p3x - 3 * floorx;
	var p5y = p3y - 3 * floory;

	c.begin();
	c.moveTo(p1x, p1y);
	c.lineTo(p2x, p2y);
	c.moveTo(p5x + floorx, p5y + floory);
	c.lineTo(p0x, p0y);
	c.stroke();
	};

	// Registers the link shape
	mxCellRenderer.prototype.defaultShapes['link'] = LinkShape;

	// Creates the graph
	var graph = new mxGraph(container);

	// Sets default styles
	var style = graph.getStylesheet().getDefaultVertexStyle();
	style['fillColor'] = '#FFFFFF';
	style['strokeColor'] = '#000000';
	style['fontColor'] = '#000000';
	style['fontStyle'] = '1';

	style = graph.getStylesheet().getDefaultEdgeStyle();
	style['strokeColor'] = '#000000';
	style['fontColor'] = '#000000';
	style['fontStyle'] = '0';
	style['fontStyle'] = '0';
	style['startSize'] = '8';
	style['endSize'] = '8';

	// Populates the graph
	var parent = graph.getDefaultParent();

	graph.getModel().beginUpdate();
	try
	{
	var v1 = graph.insertVertex(parent, null, 'v1', 20, 20, 80, 30);
	var v2 = graph.insertVertex(parent, null, 'v2', 440, 20, 80, 30);
	var e1 = graph.insertEdge(parent, null, '', v1, v2, 'dashed=1;'+
	'startArrow=oval;endArrow=block;sourcePerimeterSpacing=4;startFill=0;endFill=0;');
	var e11 = graph.insertVertex(e1, null, 'Label', 0, 0, 20, 14,
	'shape=message;labelBackgroundColor=#ffffff;labelPosition=left;spacingRight=2;align=right;fontStyle=0;');
	e11.geometry.offset = new mxPoint(-10, -7);
	e11.geometry.relative = true;
	e11.connectable = false;

	var v3 = graph.insertVertex(parent, null, 'v3', 20, 120, 80, 30);
	var v4 = graph.insertVertex(parent, null, 'v4', 440, 120, 80, 30);
	var e2 = graph.insertEdge(parent, null, 'Label', v3, v4,
	'startArrow=dash;startSize=12;endArrow=block;labelBackgroundColor=#FFFFFF;');

	var v5 = graph.insertVertex(parent, null, 'v5', 40, 220, 40, 40, 'shape=ellipse;perimeter=ellipsePerimeter;');
	var v6 = graph.insertVertex(parent, null, 'v6', 460, 220, 40, 40, 'shape=doubleEllipse;perimeter=ellipsePerimeter;');
	var e3 = graph.insertEdge(parent, null, 'Link', v5, v6,
	'shape=link;labelBackgroundColor=#FFFFFF;');
	}
	finally
	{
	graph.getModel().endUpdate();
	}
	}
	};
	</script>
	</head>
	<body onload="main(document.getElementById('graphContainer'))">
	<div id="graphContainer"
	style="overflow:hidden;position:relative;width:641px;height:381px;border:1px solid gray;cursor:default;">
	</div>
	</body>
	</html>