comments for fa2.js

tinawebJS/asyncFA2.js

-// Mathieu Jacomy @ Sciences Po Médialab & WebAtlas
-
+// Original version made by: Mathieu Jacomy @ http://github.com/jacomyal/sigma.js/blob/deprecated-v0.1/plugins/sigma.forceatlas2.js
+// This is a Modified version made by Samuel Castillo.
 var ForceAtlas2 = function(graph) {
   var self = this;
   this.graph = graph;
@@ -830,8 +830,6 @@ var ForceAtlas2 = function(graph) {
   };
 };
 
-
-
 var updateMassAndGeometry = function() {
   if (this.nodes.length > 1) {
     // Compute Mass
@@ -883,7 +881,6 @@ var Region = function(nodes, depth) {
   this.updateMassAndGeometry();
 }
 
-
 var buildSubRegions = function() {
   if (this.nodes.length > 1) {
     var leftNodes = [];
@@ -957,13 +954,18 @@ var applyForce = function(n, Force, theta) {
   }
 };
 
-var startForceAtlas2 = function(graph,limit_it) {
-//    pr("inside FA2")
-////  if(!this.forceatlas2) {
-//    pr(graph);
-//    pr(graph.nodes[0].x)
-//    pr(graph.nodes[0].y)
-//    pr("--------")
+
+
+//   [ NEW STUFF FOR WORKERS ] 
+
+  // 01. Return the values to MainContext when spatialization is finished
+  var startForceAtlas2 = function(graph,limit_it) {
+      //    pr("inside FA2")
+      ////  if(!this.forceatlas2) {
+      //    pr(graph);
+      //    pr(graph.nodes[0].x)
+      //    pr(graph.nodes[0].y)
+      //    pr("--------")
 
       // nodes = graph.nodes;
       // for(var n in nodes) {
@@ -995,26 +997,31 @@ var startForceAtlas2 = function(graph,limit_it) {
           count++;
           if(flag||count>limit_it) break;
       }    
-//    pr(forceatlas2.graph.nodes[0].x)
-//    pr(forceatlas2.graph.nodes[0].y)
-//    console.log("\titerations: "+count)
+      //    pr(forceatlas2.graph.nodes[0].x)
+      //    pr(forceatlas2.graph.nodes[0].y)
+      //    console.log("\titerations: "+count)
       result={
           "nodes":forceatlas2.graph.nodes,
           "it":count        
       }
       return result;
-};
+  };
 
-self.addEventListener("message", function(e) {
-    var graph = {
+
+  // 02. This receives the Input from MainContext. This will execute startForceAtlas2() and will "post" the returned values in MainContext.
+  self.addEventListener("message", function(e) {
+      var graph = {  // Input: nodes and edges.
           "nodes":e.data.nodes,
           "edges":e.data.edges
       }
-    var limit_it=e.data.it;
-    result=startForceAtlas2(graph,limit_it)
-    postMessage({
+      var limit_it=e.data.it; // Input: nb of iterations max.
+      result=startForceAtlas2(graph,limit_it) // executing Jacomy's Algo.
+      postMessage({ // "posting" the results in MainContext.
           "nodes":result.nodes,
           "it":result.it
       });
       
-}, false);
\ No newline at end of file
+  }, false);
+
+
+//   [ / NEW STUFF FOR WORKERS ] 
\ No newline at end of file