Force-directed Splitting

An example of how cell splitting could be achieved using examples from the Sparse Matrix Collection

Based on Force Layout & Matrix Market Format

<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  margin: 0;
}

.node {
  fill: steelblue;
}

.link {
  stroke: #ccc;
}

</style>
<body>
<script src="https://d3js.org/d3.v2.js?2.9.1"></script>
<script>

var width = 960,
    height = 500;

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

var force = d3.layout.force()
    .size([width, height]);

d3.text("can_161.mtx", function(text) {
  var graph = parseMtx(text);

var link = svg.selectAll(".link")
      .data(graph.links)
    .enter().append("line")
      .attr("class", "link")
      .on("mouseover", function(d,i) {
        console.log(d,i); 
      });

var node = svg.selectAll(".node")
      .data(graph.nodes)
    .enter().append("circle")
      .attr("class", "node")
      .attr("r", 4.5)
      .call(force.drag);

force
      .nodes(graph.nodes)
      .links(graph.links)
      .on("tick", tick)
      .start();

node.attr("cx", function(d) { return d.x; })
        .attr("cy", function(d) { return d.y; });
  }

function update() {
    force
      .nodes(graph.nodes)
      .links(graph.links);
    node.data(graph.nodes)
     .exit().remove();
    link.data(graph.links)
      .exit().remove();
  };

var start = 300;
  var remove = 100;
  var index = 0;

function anim() {
    if (index > remove) return;
    graph.links.splice(start,1);
    update();
    force.start();
    index++;
    setTimeout(anim, 30);
  };

setTimeout(anim,900);
});

function parseMtx(text) {
  var nodes = [];

return {
    nodes: nodes,
    links: links
  };
}

</script>

Modified http://d3js.org/d3.v2.js?2.9.1 to a secure url

https://d3js.org/d3.v2.js?2.9.1