GEXFD3 with Canvas

This is an example of using GEXDFD3 to host an interactive version of a dynamic k-partite network. It's still a very rough little library and feature requests and bug reports are welcome.

Simply replace cosit.gexf with your own gexf.

If it has a dynamic attribute (in this case the "startyr" column) then you can brush the network by modifying the .dynamicAttribute() setting in the index where gexfD3 is set up.

If you have a k-partite network, ensure that the types of nodes are in a "type" column and multimodal network projection buttons will automatically be created.

<html xmlns="https://www.w3.org/1999/xhtml">
<head>
  <title>GEXF D3 w/ Dynamic Brushing and Reprojecting and Canvas Edges</title>
  <meta charset="utf-8" />
  <link type="text/css" rel="stylesheet" href="gexfd3.css" />
</head>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://d3js.org/colorbrewer.v1.min.js"></script>
<script src="parser.js" type="text/javascript">
</script>
<script src="gexfd3.js" type="text/javascript">
</script>
<body onload="loadGraph('cosit.gexf')">

<div id="vizcontainer" style="width:100%;height:100%">
<canvas style="background: white;1000px;width:1000px;position:absolute;z-index:-1;" height=1000 width=1000></canvas>
<svg id="graphSVG" style="border:1px lightgray solid;">
  <g id="graphG" />
<div id="modal"><div id="content"></div><button id="modalClose" onclick="nodeFocus=false;nodeOut();d3.select('#modal').style('display','none');">X</button></div>
</div>
<div id="controls">
</div>
<div id="brushDiv"><svg style="width:100%;height:50px;"><g id="brushG" class="brush"></g></svg></div>
  <footer>
<script>
  nodeFocus = false;
  currentBrush =[0,0];
  docHash = {};
  allLinks = [];
  currentScale = 0;

function loadGraph(sourceGEXF) {
    newGEXF = GexfParser.fetch(sourceGEXF);

gD3 = gexfD3().graph(newGEXF).size([1000,1000]).dynamicAttribute("centrality");

force = d3.layout.force()
      .charge(-200)
      .linkDistance(50)
      .size([1000, 1000])
      .gravity(.1)
      .on("tick", redrawGraph)

d3.select("#brushG").call(gD3.dynamicBrush);
    gD3.dynamicBrush().on("brush", brushMove);

zoom = d3.behavior.zoom()
    .scaleExtent([.1, 10])
    .on("zoom", zoomed);

allLinks = gD3.links();
    for (x in allLinks) {
      allLinks[x]["highlighted"] = false;
    }

brushMove();
    d3.select("svg").call(zoom);
    createControls();
    zoomed();

}
      
      function highlightNeighbors(d,i) {
        var nodeNeighbors = findNeighbors(d,i);
        d3.selectAll("g.node").each(function(p) {
          var isNeighbor = nodeNeighbors.nodes.indexOf(p);
          d3.select(this).select("circle")
          .style("opacity", isNeighbor > -1 ? 1 : .25)
          .style("stroke-width", isNeighbor > -1 ? 3 : 1)
          .style("stroke", isNeighbor > -1 ? "blue" : "white")
        })
        nodeNeighbors.links.forEach(function (link){
          link.highlighted = true;
        })
        redrawGraph();
      }
      
      function findNeighbors(d,i) {
        neighborArray = [d];
        var linkArray = [];
        filteredLinks.filter(function(p) {return p.source == d || p.target == d}).forEach(function(p) {
          neighborArray.indexOf(p.source) == -1 ? neighborArray.push(p.source) : null;
          neighborArray.indexOf(p.target) == -1 ? neighborArray.push(p.target) : null;
          linkArray.push(p);
        })
        return {nodes: neighborArray, links: linkArray};
      }

d3.select("#controls").append("button").attr("class", "origButton projection").html("N-Partite").on("click", function() {
        collapseNetwork("base");
      })
      d3.select("#controls").selectAll("button.networkProjectionButton").data(
        d3.set(gD3.nodes().map(function(el) {return el.properties.type})).values()
        )
      .enter()
      .append("button")
      .attr("class", "networkProjectionButton projection")
      .on("click", function(d) {collapseNetwork(d)})
      .html(function(d) {return d + " Only"});
      
            d3.select("#controls").append("button").attr("class", "origButton node-appearance").html("Reset Colors").on("click", function() {
      var sizeScale = gD3.nodeScale();
      d3.selectAll("circle")
      .attr("r", function (d) {return sizeScale(d.size)})
      .style("fill", function(d) {return d.rgbColor})
      .style("opacity", 1);
      })
            
      d3.select("#controls").selectAll("button.nodeButtons").data(gD3.nodeAttributes())
      .enter()
      .append("button")
      .attr("class", "nodeButtons node-appearance")
      .on("click", nodeButtonClick)
      .html(function(d) {return d});

d3.select("#controls").selectAll("button.linkButtons").data(gD3.linkAttributes())
      .enter()
      .append("button")
      .attr("class", "linkButtons node-appearance")
      .on("click", linkButtonClick)
      .html(function(d) {return d});

}
    
    function nodeButtonClick(d,i) {
      var nodeAttExtent = d3.extent(filteredNodes, function(p) {return parseFloat(p.properties[d])});
      var colorScale = d3.scale.quantize().domain(nodeAttExtent).range(colorbrewer.YlGnBu[6]);
      d3.selectAll("circle").style("fill", function(p) {return colorScale(p.properties[d])}).style("opacity", 1)
    }
    function linkButtonClick(d,i) {
      var linkAttExtent = d3.extent(filteredLinks, function(p) {return parseFloat(p.properties[d])});
      var colorScale = d3.scale.quantize().domain(linkAttExtent).range(colorbrewer.YlGnBu[6]);
      d3.selectAll("line").style("stroke", function(p) {return colorScale(p.properties[d])}).style("opacity", 1)      
    }
    
    function redrawGraph() {
      var xScale = gD3.xScale();
      var yScale = gD3.yScale();

var context = d3.select("canvas").node

var canvas = d3.select("canvas").node();
      var context = canvas.getContext("2d");
      context.clearRect (0,0,canvas.width,canvas.height);

context.lineWidth = 1;
  context.strokeStyle = "rgba(0, 0, 0, 0.5)";

filteredLinks.forEach(function (link) {
  context.beginPath();
  context.moveTo(xScale(link.source.x),yScale(link.source.y))
  context.lineTo(xScale(link.target.x),yScale(link.target.y))
  context.stroke();
      })

context.lineWidth = 2;
  context.strokeStyle = "rgba(0, 255, 122, 0.75)";

filteredLinks.filter(function (d) {return d.highlighted}).forEach(function (link) {
  context.beginPath();
  context.moveTo(xScale(link.source.x),yScale(link.source.y))
  context.lineTo(xScale(link.target.x),yScale(link.target.y))
  context.stroke();
      })
  
      d3.selectAll("g.node")
      .attr("transform", function(d) {return "translate(" + xScale(d.x) + "," + yScale(d.y) + ")"});
    }
    
    function collapseNetwork(collapseVector) {
    currentBrush = [0,0];
    dAtt = gD3.dynamicAttribute();
    if (collapseVector == "base") {
      gD3.links(allLinks);
      brushMove();
      return;
    }
    newLinks = [];
     for (x in allLinks) {
      if (allLinks[x].source.properties.type == collapseVector) {
        for (y in allLinks) {
          if (allLinks[y].source.properties.type == collapseVector) {
          if (allLinks[y].target == allLinks[x].target && (allLinks[y].properties[dAtt] || allLinks[y].source.properties[dAtt])  == (allLinks[x].properties[dAtt] || allLinks[x].source.properties[dAtt])) {
            var newLink = {id: collapseVector + newLinks.length, source: allLinks[x].source, target: allLinks[y].source, properties: {}};
            if (gD3.linkAttributes().indexOf(dAtt) > -1) {
              newLink.properties[dAtt] = allLinks[x].properties[dAtt];
            }
            else if (gD3.nodeAttributes().indexOf(dAtt) > -1) {
              newLink.properties[dAtt] = allLinks[y].target.properties[dAtt];              
            }
            newLinks.push(newLink);
            }
          }
        }        
      }
      else if (allLinks[x].target.properties.type == collapseVector) {
        for (y in allLinks) {
          if (allLinks[y].target.properties.type == collapseVector) {
          if (allLinks[y].source == allLinks[x].source && (allLinks[y].properties[dAtt] || allLinks[y].target.properties[dAtt])  == (allLinks[x].properties[dAtt] || allLinks[x].target.properties[dAtt])) {
            var newLink = {id: collapseVector + newLinks.length, source: allLinks[x].target, target: allLinks[y].target, properties: {}};
            if (gD3.linkAttributes().indexOf(dAtt) > -1) {
              newLink.properties[dAtt] = allLinks[x].properties[dAtt];
            }
            else if (gD3.nodeAttributes().indexOf(dAtt) > -1) {
              newLink.properties[dAtt] = allLinks[y].source.properties[dAtt];              
            }
            newLinks.push(newLink);
            }
          }
        }
      }
     }
     console.log(newLinks)
     gD3.links(newLinks);
     brushMove();
     redrawGraph();
    }

function brushMove() {
      var s = gD3.dynamicBrush().extent();
      var dAtt = gD3.dynamicAttribute();
      var xScale = gD3.xScale();
      var yScale = gD3.yScale();
      var sizeScale = gD3.nodeScale();
      
      if (Math.ceil(s[0]) == currentBrush[0] && Math.floor(s[1]) == currentBrush[1]) {
        return;
      }
      else {
        currentBrush[0] = Math.floor(s[0]);
        currentBrush[1] = Math.ceil(s[1]);
      }

var forceRunning = false;
      if (force.alpha() > 0) {
        force.stop();
        forceRunning = true;
      }

if (typeof gD3.links()[0].properties["startyr"] != "undefined") {
      filteredLinks = gD3.links().filter(function (d) {return d.properties[dAtt] == 0 || (d.properties[dAtt] >= currentBrush[0] && d.properties[dAtt] <= currentBrush[1])});
      sourceNodes = filteredLinks.map(function (el) {return el.source});
      targetNodes = filteredLinks.map(function (el) {return el.target});
      filteredNodes = gD3.nodes().filter(function (d) {return sourceNodes.indexOf(d) > -1 || targetNodes.indexOf(d) > -1});
      }
      else {
        filteredLinks = gD3.links();
        filteredNodes = gD3.nodes();
      }
      if (gD3.nodeAttributes().indexOf(dAtt) > -1) {
        filteredNodes = filteredNodes.filter(function (d) {return d.properties[dAtt] == 0 || (d.properties[dAtt] >= currentBrush[0] && d.properties[dAtt] <= currentBrush[1])});
        nodeIDs = filteredNodes.map(function (el) {return el.id})
        filteredLinks = filteredLinks.filter(function (d) {return nodeIDs.indexOf(d.source.id) > -1 && nodeIDs.indexOf(d.target.id) > -1})
      }

d3.select("#graphG").selectAll("g.node").data(filteredNodes, function (d) {return d.id})
      .enter()
      .append("g")
      .attr("class", "node")
      .attr("transform", function(d) {return "translate(" + xScale(d.x) + "," + yScale(d.y) + ")"})
      .on("mouseover", nodeOver)
      .on("mouseout", nodeOut)
      .on("click", nodeClick)
      .append("circle")
      .attr("r", 5)
      .style("fill", function(d) {return d.rgbColor})
      .style("stroke", "black")
      .style("stroke-width", "1px")
      .style("stroke-opacity", 1);

d3.selectAll("g.node").data(filteredNodes, function (d) {return d.id})
      .exit()
      .remove();

force
      .nodes(filteredNodes)
      .links(filteredLinks);

force.start();
      
      var maxWeight = d3.max(filteredNodes, function(d) {return d.weight || 0});
      
      if (maxWeight > 0) {
        var nodeScale = d3.scale.linear().domain([1,maxWeight]).range([2,10]).clamp(true);
        d3.selectAll("g.node").select("circle").attr("r", function(d) {return nodeScale(d.weight) || 0});
      }

if (!forceRunning) {
        force.stop();
      }
      
        function nodeOver(d,i,e) {
        var el = this;
        if (!d3.event.fromElement) {
          el = e;
        }
        if (nodeFocus) {
          return;
        }
        //Only do the element stuff if this came from mouseover
        el.parentNode.appendChild(el);
        d3.select(el).append("text").attr("class", "hoverLabel").attr("stroke", "white").attr("stroke-width", "5px")
        .style("opacity", .9)
        .style("pointer-events", "none")
        .text(d.label);
        
        d3.select(el).append("text").attr("class", "hoverLabel")
        .style("pointer-events", "none")
        .text(d.label);
        highlightNeighbors(d,i);
      }

d3.selectAll(".hoverLabel").remove();
        d3.selectAll("circle").style("opacity", 1).style("stroke", "black").style("stroke-width", "1px");
        filteredLinks.forEach(function (link) {link.highlighted = false});
        redrawGraph();
      }

</script>
  </footer>
</body>
</html>

Modified http://d3js.org/d3.v3.min.js to a secure url

Modified http://d3js.org/colorbrewer.v1.min.js to a secure url

https://d3js.org/d3.v3.min.js

https://d3js.org/colorbrewer.v1.min.js