Fixed wrong variable reference

see #1608

HISTORY.md

@@ -17,6 +17,7 @@ http://visjs.org
 - Fixed #1596: correct clean up of manipulation dom elements.
 - Fixed #1594: bug in hierarchical layout.
 - Fixed #1597: Allow zero borders and addressed scaling artifacts.
+- Fixed #1608: Fixed wrong variable reference
 
 ### Timeline
 

lib/network/modules/components/edges/util/EdgeBase.js

@@ -457,11 +457,11 @@ class EdgeBase {
 
       if (position === 'from') {
         arrowPoint = this.findBorderPosition(this.from, ctx, {x, y, low:0.25, high:0.6, direction:-1});
-        angle = point.t * -2 * Math.PI + 1.5 * Math.PI + 0.1 * Math.PI;
+        angle = arrowPoint.t * -2 * Math.PI + 1.5 * Math.PI + 0.1 * Math.PI;
       }
       else if (position === 'to') {
         arrowPoint = this.findBorderPosition(this.from, ctx, {x, y, low:0.6, high:1.0, direction:1});
-        angle = point.t * -2 * Math.PI + 1.5 * Math.PI - 1.1 * Math.PI;
+        angle = arrowPoint.t * -2 * Math.PI + 1.5 * Math.PI - 1.1 * Math.PI;
       }
       else {
         arrowPoint = this._pointOnCircle(x, y, radius, 0.175);