From 0780a83dd24c131ef87c65c0602109ecd7c80650 Mon Sep 17 00:00:00 2001
From: Nils Schneider <nils@nilsschneider.net>
Date: Tue, 31 Mar 2015 23:45:32 +0200
Subject: [PATCH] forcegraph: do not animate pan/zoom on first router event

---
 lib/forcegraph.js | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/lib/forcegraph.js b/lib/forcegraph.js
index 8b555b2..0a95e09 100644
--- a/lib/forcegraph.js
+++ b/lib/forcegraph.js
@@ -6,6 +6,7 @@ define(["d3"], function (d3) {
     var zoomBehavior
     var force
     var el
+    var doAnimation = false
 
     function nodeName(d) {
       if (d.node && d.node.nodeinfo)
@@ -34,9 +35,13 @@ define(["d3"], function (d3) {
       zoomBehavior.scale(scale)
       zoomBehavior.translate(translate)
 
-      vis.transition().duration(500)
-         .attr("transform", "translate(" + translate + ") " +
-                            "scale(" + scale + ")")
+      var el = vis
+
+      if (doAnimation)
+        el = el.transition().duration(500)
+
+      el.attr("transform", "translate(" + translate + ") " +
+                           "scale(" + scale + ")")
     }
 
     function panzoom() {
@@ -236,6 +241,8 @@ define(["d3"], function (d3) {
       link.classed("highlight", false)
 
       animatePanzoom([sidebar.getWidth(), 0], 1)
+
+      doAnimation = true
     }
 
     self.gotoNode = function (d) {
@@ -248,6 +255,8 @@ define(["d3"], function (d3) {
 
       if (n)
         panzoomTo([n.x, n.y], [n.x, n.y])
+
+      doAnimation = true
     }
 
     self.gotoLink = function (d) {
@@ -263,6 +272,8 @@ define(["d3"], function (d3) {
         var y = d3.extent([l.source, l.target], function (d) { return d.y })
         panzoomTo([x[0], y[0]], [x[1], y[1]])
       }
+
+      doAnimation = true
     }
 
     self.destroy = function () {