From ef7f60179a95ab3b6c6d9b390075e7c20a59283a Mon Sep 17 00:00:00 2001
From: Nils Schneider <nils@nilsschneider.net>
Date: Thu, 16 Apr 2015 20:35:42 +0200
Subject: [PATCH] forcegraph: limit framerate

---
 lib/forcegraph.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/forcegraph.js b/lib/forcegraph.js
index ba15722..506b0b1 100644
--- a/lib/forcegraph.js
+++ b/lib/forcegraph.js
@@ -236,7 +236,18 @@ define(["d3"], function (d3) {
              d.y + margin > screenRect.top && d.y - margin < screenRect.bottom
     }
 
-    function redraw() {
+    var oldTime = 0
+
+    function redraw(time) {
+      var deltaTime = time - oldTime
+
+      if (deltaTime < 20) {
+        requestAnimationFrame(redraw)
+        return
+      }
+
+      oldTime = time
+
       var translate = zoomBehavior.translate()
       var scale = zoomBehavior.scale()
       var links = intLinks.filter(visibleLinks)
@@ -374,7 +385,7 @@ define(["d3"], function (d3) {
     }
 
     function tickEvent() {
-      redraw()
+      requestAnimationFrame(redraw)
     }
 
     function resizeCanvas() {