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Is there a standard way to read and parse DOT graph files in javascript, ideally in way that will work nicely in d3?
Currently, the only thing I can think of doing is reading plain text and doing my own parsing. Hopefully this'd be reinventing the wheel though.
d3.text("graph.dot", function(error, dotGraph) {
....
)};
872
⚠ Solution proposed here depends on two libraries marked as unsupported by their authors.
To get Graphviz DOT files rendered in Javascript, combine the graphlib-dot and dagre-d3 libraries.
The graphlibDot.read() method takes a graph or digraph definition in DOT syntax and produces a graph object. The dagreD3.render() method can then output this graph object to SVG.
You can then use additional D3 methods to add functionality to the graph, retrieving additional node and edge attributes from the graphlib graph object as needed.
A trivial self-contained example is:
window.onload = function() {
// Parse the DOT syntax into a graphlib object.
var g = graphlibDot.read(
'digraph {\n' +
' a -> b;\n' +
' }'
)
// Render the graphlib object using d3.
var render = new dagreD3.render();
render(d3.select("svg g"), g);
// Optional - resize the SVG element based on the contents.
var svg = document.querySelector('#graphContainer');
var bbox = svg.getBBox();
svg.style.width = bbox.width + 40.0 + "px";
svg.style.height = bbox.height + 40.0 + "px";
}svg {
overflow: hidden;
}
.node rect {
stroke: #333;
stroke-width: 1.5px;
fill: #fff;
}
.edgeLabel rect {
fill: #fff;
}
.edgePath {
stroke: #333;
stroke-width: 1.5px;
fill: none;
}<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://dagrejs.github.io/project/graphlib-dot/v0.6.4/graphlib-dot.min.js"></script>
<script src="https://dagrejs.github.io/project/dagre-d3/v0.5.0/dagre-d3.min.js"></script>
<html>
<body>
<script type='text/javascript'>
</script>
<svg id="graphContainer">
<g/>
</svg>
</body>
</html>Late to the party, but if you're still interested, here's a way to do it with the new d3-graphviz plug-in that I just released:
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="http://viz-js.com/bower_components/viz.js/viz-lite.js"></script>
<script src="https://github.com/magjac/d3-graphviz/releases/download/v0.0.4/d3-graphviz.min.js"></script>
<div id="graph" style="text-align: center;"></div>
<script>
d3.select("#graph").graphviz()
.renderDot('digraph {a -> b}');
</script>Same example, using latest version of graphlib-dot and dagre-d3.
window.onload = function() {
// Parse the DOT syntax into a graphlib object.
var g = graphlibDot.read(
'digraph {\n' +
' a -> b;\n' +
' }'
)
// Render the graphlib object using d3.
var renderer = dagreD3.render();
d3.select("svg g").call(renderer, g);
// Optional - resize the SVG element based on the contents.
var svg = document.querySelector('#graphContainer');
var bbox = svg.getBBox();
svg.style.width = bbox.width + 40.0 + "px";
svg.style.height = bbox.height + 40.0 + "px";
}svg {
overflow: hidden;
}
.node rect {
stroke: #333;
stroke-width: 1.5px;
fill: #fff;
}
.edgeLabel rect {
fill: #fff;
}
.edgePath {
stroke: #333;
stroke-width: 1.5px;
fill: none;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="http://cpettitt.github.io/project/graphlib-dot/latest/graphlib-dot.min.js"></script>
<script src="http://cpettitt.github.io/project/dagre-d3/latest/dagre-d3.js"></script>
<html>
<body>
<script type='text/javascript'>
</script>
<svg id="graphContainer">
<g/>
</svg>
</body>
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