From 5cc12a0048a3bcc4a061034328ce1517b1ed7134 Mon Sep 17 00:00:00 2001
From: Matthew Petroff <matthew@mpetroff.net>
Date: Thu, 5 Mar 2015 20:26:30 -0500
Subject: [PATCH] Fix jumping while panning around +180/-180 degrees (fixes
 #62).

---
 src/js/pannellum.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index 8a8c30e..a7870af 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -485,7 +485,7 @@ function onDocumentMouseMove(event) {
         latestInteraction = Date.now();
         //TODO: This still isn't quite right
         var yaw = ((Math.atan(onPointerDownPointerX / renderer.canvas.width * 2 - 1) - Math.atan(event.clientX / renderer.canvas.width * 2 - 1)) * 180 / Math.PI * config.hfov / 90) + onPointerDownYaw;
-        yawSpeed = (yaw - config.yaw) * 0.2;
+        yawSpeed = (yaw - config.yaw) % 360 * 0.2;
         config.yaw = yaw;
         
         var vfov = 2 * Math.atan(Math.tan(config.hfov/360*Math.PI) * renderer.canvas.height / renderer.canvas.width) * 180 / Math.PI;
@@ -557,7 +557,7 @@ function onDocumentTouchMove(event) {
         }
         
         var yaw = (onPointerDownPointerX - clientX) * 0.1 + onPointerDownYaw;
-        yawSpeed = (yaw - config.yaw) * 0.2;
+        yawSpeed = (yaw - config.yaw) % 360 * 0.2;
         config.yaw = yaw;
         
         var pitch = (clientY - onPointerDownPointerY) * 0.1 + onPointerDownPitch;