slow down zoom if shift key is held, close #836

mapbox · Jan 16, 2015 · bc3c357 · bc3c357
1 parent 9d418a3
commit bc3c357
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/js/ui/interaction.js b/js/ui/interaction.js
@@ -197,6 +197,9 @@ function Interaction(el) {
                 }
             }
 
+            // Slow down zoom if shift key is held for more precise zooming
+            if (ev.shiftKey && value) value = value / 4;
+
             // Only fire the callback if we actually know what type of scrolling
             // device the user uses.
             if (type !== null) {