103 lines
3.4 KiB
HTML
103 lines
3.4 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Dagre D3 Demo: SVG Labels</title>
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<link rel="stylesheet" href="demo.css">
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<script src="../dagre-d3.js"></script>
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<h1>Dagre D3 Demo: SVG Labels</h1>
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<style id="css">
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text {
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font-weight: 300;
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font-family: "Helvetica Neue", Helvetica, Arial, sans-serf;
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font-size: 14px;
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}
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.node rect {
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stroke: #999;
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fill: #fff;
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stroke-width: 1.5px;
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}
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.edgePath path {
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stroke: #333;
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stroke-width: 1.5px;
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}
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</style>
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<svg id="svg-canvas" width=960 height=600></svg>
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<section>
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<p>An example of adding SVG labels. This allows the user to add any svg
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elements to the label. This allows for links to works in IE.</p>
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</section>
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<script id="js">
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// Create the input graph
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var g = new dagreD3.graphlib.Graph()
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.setGraph({})
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.setDefaultEdgeLabel(function() { return {}; });
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// Create the SVG label to pass in
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// Must create in SVG namespace
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// http://stackoverflow.com/questions/7547117/add-a-new-line-in-svg-bug-cannot-see-the-line
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// This mimics the same way string labels get added in Dagre-D3
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svg_label = document.createElementNS('http://www.w3.org/2000/svg', 'text');
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tspan = document.createElementNS('http://www.w3.org/2000/svg','tspan');
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tspan.setAttributeNS('http://www.w3.org/XML/1998/namespace', 'xml:space', 'preserve');
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tspan.setAttribute('dy', '1em');
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tspan.setAttribute('x', '1');
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link = document.createElementNS('http://www.w3.org/2000/svg', 'a');
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link.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', 'http://google.com/');
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link.setAttribute('target', '_blank');
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link.textContent = 'IE Capable link';
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tspan.appendChild(link);
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svg_label.appendChild(tspan);
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g.setNode(0, { label: svg_label, labelType: 'svg' });
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g.setNode(1, { label: "A" });
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g.setNode(2, { label: "B" });
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g.nodes().forEach(function(v) {
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var node = g.node(v);
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// Round the corners of the nodes
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node.rx = node.ry = 5;
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});
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svg_edge_label = document.createElementNS('http://www.w3.org/2000/svg', 'text');
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edge_tspan = document.createElementNS('http://www.w3.org/2000/svg','tspan');
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edge_tspan.setAttributeNS('http://www.w3.org/XML/1998/namespace', 'xml:space', 'preserve');
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edge_tspan.setAttribute('dy', '1em');
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edge_tspan.setAttribute('x', '1');
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edge_link = document.createElementNS('http://www.w3.org/2000/svg', 'a');
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edge_link.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', 'http://google.com/');
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edge_link.setAttribute('target', '_blank');
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edge_link.textContent = 'IE Capable Edge link';
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edge_tspan.appendChild(edge_link);
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svg_edge_label.appendChild(edge_tspan);
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// Set up edges, no special attributes.
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g.setEdge(0, 1, { labelType: "svg", label: svg_edge_label });
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g.setEdge(0, 2);
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g.setEdge(1, 2);
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// Create the renderer
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var render = new dagreD3.render();
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// Set up an SVG group so that we can translate the final graph.
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var svg = d3.select("svg"),
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svgGroup = svg.append("g");
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// Run the renderer. This is what draws the final graph.
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render(d3.select("svg g"), g);
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// Center the graph
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var xCenterOffset = (svg.attr("width") - g.graph().width) / 2;
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svgGroup.attr("transform", "translate(" + xCenterOffset + ", 20)");
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svg.attr("height", g.graph().height + 40);
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</script>
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<script src="demo.js"></script>
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