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mxgraph

javascript

examples

shape.html

shape.html 4.50 KB

<html>
<head>
	<title>Shape example for mxGraph</title>

<script type="text/javascript">
		mxBasePath = '../src';
	</script>

<script type="text/javascript" src="../src/js/mxClient.js"></script>

<script type="text/javascript">
	
		/*
			The example shape is a "3D box" that looks like this:
		 ____
		 / /|
		 /___/ |
		 | | /
		 |___|/
		 
		 	The code below defines the shape. The BoxShape function
		 	it the constructor which creates a new object instance.
		*/
		function BoxShape()
		{
			mxCylinder.call(this);
		};

/*
		 	The next lines use an mxCylinder instance to augment the
		 	prototype of the shape ("inheritance") and reset the
		 	constructor to the topmost function of the c'tor chain.
		*/
		mxUtils.extend(BoxShape, mxCylinder);
		
		// Defines the extrusion of the box as a "static class variable"
		BoxShape.prototype.extrude = 10;
			
		/*
		 	Next, the mxCylinder's redrawPath method is "overridden".
		 	This method has a isForeground argument to separate two
		 	paths, one for the background (which must be closed and
		 	might be filled) and one for the foreground, which is
		 	just a stroke.

Foreground: /
		 _____/
		 |
		 |
		 ____ 
		 Background: / | 
		 / | 
		 | / 
		 |____/ 
		*/
		BoxShape.prototype.redrawPath = function(path, x, y, w, h, isForeground)
		{
			var dy = this.extrude * this.scale;
			var dx = this.extrude * this.scale;

if (isForeground)
			{
				path.moveTo(0, dy);
				path.lineTo(w - dx, dy);
				path.lineTo(w, 0);
				path.moveTo(w - dx, dy);
				path.lineTo(w - dx, h);
			}
			else
			{
				path.moveTo(0, dy);
				path.lineTo(dx, 0);
				path.lineTo(w, 0);
				path.lineTo(w, h - dy);
				path.lineTo(w - dx, h);
				path.lineTo(0, h);
				path.lineTo(0, dy);
				path.lineTo(dx, 0);
				path.close();
			}
		};
		
		mxCellRenderer.registerShape('box', BoxShape);
	</script>

<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 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
			{
				// Creates the graph inside the DOM node.
				var graph = new mxGraph(container);
				
				// Disables basic selection and cell handling
				graph.setEnabled(false);

// Changes the default style for vertices "in-place"
				// to use the custom shape.
				var style = graph.getStylesheet().getDefaultVertexStyle();
				style[mxConstants.STYLE_SHAPE] = 'box';
				
				// Adds a spacing for the label that matches the
				// extrusion size
				style[mxConstants.STYLE_SPACING_TOP] = BoxShape.prototype.extrude;
				style[mxConstants.STYLE_SPACING_RIGHT] = BoxShape.prototype.extrude;
				
				// Adds a gradient and shadow to improve the user experience
				style[mxConstants.STYLE_GRADIENTCOLOR] = '#FFFFFF';
				style[mxConstants.STYLE_SHADOW] = true;

// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Custom', 20, 20, 80, 60);
					var v2 = graph.insertVertex(parent, null, 'Shape', 200, 150, 80, 60);
					var e1 = graph.insertEdge(parent, null, '', v1, v2);
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<body onload="main(document.getElementById('graphContainer'))">

<div id="graphContainer"
		style="overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>

一键复制编辑原始数据按行查看历史

Gaudenz Alder 提交于 2018年05月17日 15:19 +08:00 . 3.9.4 release

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162

<!--
 Copyright (c) 2006-2013, JGraph Ltd

 Shape example for mxGraph. This example demonstrates how to
 implement and use a custom shape.
-->
<html>
<head>
	<title>Shape 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 custom shape -->
	<script type="text/javascript">
	
		/*
			The example shape is a "3D box" that looks like this:
		 ____
		 / /|
		 /___/ |
		 | | /
		 |___|/

		 	The code below defines the shape. The BoxShape function
		 	it the constructor which creates a new object instance.
		*/
		function BoxShape()
		{
			mxCylinder.call(this);
		};

		/*
		 	The next lines use an mxCylinder instance to augment the
		 	prototype of the shape ("inheritance") and reset the
		 	constructor to the topmost function of the c'tor chain.
		*/
		mxUtils.extend(BoxShape, mxCylinder);
		
		// Defines the extrusion of the box as a "static class variable"
		BoxShape.prototype.extrude = 10;
			
		/*
		 	Next, the mxCylinder's redrawPath method is "overridden".
		 	This method has a isForeground argument to separate two
		 	paths, one for the background (which must be closed and
		 	might be filled) and one for the foreground, which is
		 	just a stroke.

		 Foreground: /
		 _____/
		 |
		 |
		 ____ 
		 Background: / | 
		 / | 
		 | / 
		 |____/ 
		*/
		BoxShape.prototype.redrawPath = function(path, x, y, w, h, isForeground)
		{
			var dy = this.extrude * this.scale;
			var dx = this.extrude * this.scale;

			if (isForeground)
			{
				path.moveTo(0, dy);
				path.lineTo(w - dx, dy);
				path.lineTo(w, 0);
				path.moveTo(w - dx, dy);
				path.lineTo(w - dx, h);
			}
			else
			{
				path.moveTo(0, dy);
				path.lineTo(dx, 0);
				path.lineTo(w, 0);
				path.lineTo(w, h - dy);
				path.lineTo(w - dx, h);
				path.lineTo(0, h);
				path.lineTo(0, dy);
				path.lineTo(dx, 0);
				path.close();
			}
		};
		
		mxCellRenderer.registerShape('box', BoxShape);
	</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 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
			{
				// Creates the graph inside the DOM node.
				var graph = new mxGraph(container);
				
				// Disables basic selection and cell handling
				graph.setEnabled(false);

				// Changes the default style for vertices "in-place"
				// to use the custom shape.
				var style = graph.getStylesheet().getDefaultVertexStyle();
				style[mxConstants.STYLE_SHAPE] = 'box';
				
				// Adds a spacing for the label that matches the
				// extrusion size
				style[mxConstants.STYLE_SPACING_TOP] = BoxShape.prototype.extrude;
				style[mxConstants.STYLE_SPACING_RIGHT] = BoxShape.prototype.extrude;
				
				// Adds a gradient and shadow to improve the user experience
				style[mxConstants.STYLE_GRADIENTCOLOR] = '#FFFFFF';
				style[mxConstants.STYLE_SHADOW] = true;

				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Custom', 20, 20, 80, 60);
					var v2 = graph.insertVertex(parent, null, 'Shape', 200, 150, 80, 60);
					var e1 = graph.insertEdge(parent, null, '', v1, v2);
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))">

	<!-- Creates a container for the graph with a grid wallpaper -->
	<div id="graphContainer"
		style="overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>