Link force add end condition

examples/js/src/example-papaparsing/linkForce.js

@@ -14,7 +14,9 @@ function startLinkSimulation() {
     force = d3.forceLinkFullyConnected()
               .distance(function (n, m) {
                 return distanceFunction(n, m, props, norm);
-              });
+              })
+              .stableVelocity(0.000001) //TODO
+              .onStableVelo(ended);
   }
   else {
     for (i = nodes.length-1; i >= 1; i--) {