graphdracula rexster example

graphdracula-rexster.js

//Show UCLA CS class dependencies (not complete)
// derived from classes.js example that ships with http://www.graphdracula.net/
$(document).ready(function() {
    var rexsterAPI = "http://localhost:8182/";
    var width = $(document).width();
    var height = $(document).height();
    var g = new Graph();
    g.edgeFactory.template.style.directed = true;

    indicesUrl = rexsterAPI + 'snac/indices/name-idx?key=identity&value=';
    identity = "Sierra Club."
    // identity = "Eisenhower, Dwight D. (Dwight David), 1890-1969."

    // look up node id
    var nodeId;
    
    $.ajax({
      url: indicesUrl + encodeURIComponent(identity), 
      async: false,
      dataType: "json",
      success: function (data) {
        nodeId = data.results[0]._id
      }
    });

    var edges = [];

    $.ajax({
      url: rexsterAPI + "snac/vertices/" + nodeId + '/inE',
      async: false,
      dataType: "json",
      success: function (data) {
        arr = data.results // loop through rexster results array
        for(var i=0,len=arr.length; value=arr[i], i<len; i++) {
          // g.addEdge(value.from_name, value.to_name, { arcrole: value._label })
          edges.push( [ value.from_name, value.to_name, value._label ] );
        }
      }
    });

    for(var i=0,len=edges.length; value=edges[i], i<len; i++) {
      g.addEdge(edges[i][0], edges[i][1]);
      console.log(edges[i][0], edges[i][1]);
    }
      
    var layouter = new Graph.Layout.Ordered(g, topological_sort(g));
    layouter.layout();
    var renderer = new Graph.Renderer.Raphael('canvas', g, width, height);
    renderer.draw();
});