<!--
Copyright (c) 2006-2013, JGraph Ltd
Merge example for mxGraph. This example demonstrates using
the mergeChildren function to merge two graphs.
-->
<html>
<head>
<title>Merge 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
{
mxConstants.SHADOWCOLOR = '#c0c0c0';
// Creates the graph inside the given container
var graph = new mxGraph(container);
// No size handles, please...
graph.setCellsResizable(false);
// Makes all cells round with a white, bold label
var style = graph.stylesheet.getDefaultVertexStyle();
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_ELLIPSE;
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.EllipsePerimeter;
style[mxConstants.STYLE_FONTCOLOR] = 'white';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_FONTSTYLE] = mxConstants.FONT_BOLD;
style[mxConstants.STYLE_FONTSIZE] = 14;
style[mxConstants.STYLE_SHADOW] = true;
// Makes all edge labels gray with a white background
style = graph.stylesheet.getDefaultEdgeStyle();
style[mxConstants.STYLE_FONTCOLOR] = 'gray';
style[mxConstants.STYLE_FONTSTYLE] = mxConstants.FONT_BOLD;
style[mxConstants.STYLE_FONTCOLOR] = 'black';
style[mxConstants.STYLE_STROKEWIDTH] = 2;
// Enables rubberband selection
new mxRubberband(graph);
// 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 target model in a single step
// using custom ids for the vertices and edges
var w = 40;
var h = 40;
graph.getModel().beginUpdate();
try
{
var a = graph.insertVertex(parent, 'a', 'A', 20, 20, w, h, 'fillColor=blue');
var b = graph.insertVertex(parent, 'b', 'B', 20, 200, w, h, 'fillColor=blue');
var c = graph.insertVertex(parent, 'c', 'C', 200, 20, w, h, 'fillColor=red');
var d = graph.insertVertex(parent, 'd', 'D', 200, 200, w, h, 'fillColor=red');
var ac = graph.insertEdge(parent, 'ac', 'ac', a, c, 'strokeColor=blue;verticalAlign=bottom');
var ad = graph.insertEdge(parent, 'ad', 'ad', a, d, 'strokeColor=blue;align=left;verticalAlign=bottom');
var bd = graph.insertEdge(parent, 'bd', 'bd', b, d, 'strokeColor=blue;verticalAlign=bottom');
}
finally
{
// Updates the display
graph.getModel().endUpdate();
}
// Creates the second graph model (without a container)
var graph2 = new mxGraph();
// Gets the default parent for inserting new cells. This
// is normally the first child of the root (ie. layer 0).
var parent2 = graph2.getDefaultParent();
// Adds cells to the target model in a single step
// using custom ids for the vertices
graph2.getModel().beginUpdate();
try
{
var c = graph2.insertVertex(parent2, 'c', 'C', 200, 20, w, h, 'fillColor=green');
var d = graph2.insertVertex(parent2, 'd', 'D', 200, 200, w, h, 'fillColor=green');
var e = graph2.insertVertex(parent2, 'e', 'E', 400, 20, w, h, 'fillColor=green');
var f = graph2.insertVertex(parent2, 'f', 'F', 400, 200, w, h, 'fillColor=green');
var ce = graph2.insertEdge(parent2, 'ce', 'ce', c, e, 'strokeColor=green;verticalAlign=bottom');
var ed = graph2.insertEdge(parent2, 'ed', 'ed', e, d, 'strokeColor=green;align=right;verticalAlign=bottom');
var fd = graph2.insertEdge(parent2, 'bd', 'fd', f, d, 'strokeColor=green;verticalAlign=bottom');
}
finally
{
// Updates the display
graph2.getModel().endUpdate();
}
// Merges the model from the second graph into the model of
// the first graph. Note: If you add a false to the parameter
// list then _not_ all edges will be cloned, that is, the
// edges are assumed to have an identity, and hence the edge
// "bd" will be changed to point from f to d, as specified in
// the edge for the same id in the second graph.
graph.getModel().mergeChildren(parent2, parent/*, false*/);
}
};
</script>
</head>
<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))" style="overflow:hidden;">
<!-- Creates a container for the graph with a grid wallpaper -->
<div id="graphContainer"
style="position:absolute;overflow:hidden;width:100%;height:100%;">
</div>
</body>
</html>