Fix normalize function to handle 0/0 (#2888)

fabricjs · Apr 13, 2016 · de4826f · de4826f
1 parent a5192e4
commit de4826f
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/util/anim_ease.js b/src/util/anim_ease.js
@@ -6,7 +6,13 @@
       s = p / 4;
     }
     else {
-      s = p / (2 * Math.PI) * Math.asin(c / a);
+      //handle the 0/0 case:
+      if (c === 0 && a === 0) {
+        s = p / (2 * Math.PI) * Math.asin(1);
+      }
+      else {
+        s = p / (2 * Math.PI) * Math.asin(c / a);
+      }
     }
     return { a: a, c: c, p: p, s: s };
   }