diff --git a/lib/OpenLayers/Format/EncodedPolyline.js b/lib/OpenLayers/Format/EncodedPolyline.js
index 7457bcf7f0..60925a2604 100644
--- a/lib/OpenLayers/Format/EncodedPolyline.js
+++ b/lib/OpenLayers/Format/EncodedPolyline.js
@@ -102,8 +102,9 @@ OpenLayers.Format.EncodedPolyline = OpenLayers.Class(OpenLayers.Format, {
      * {Array(Array(int))} An array containing n-dimensional arrays of
      *     coordinates.
      */
-    decode: function(encoded, dims) {
-        var flatPoints = this.decodeDeltas(encoded, dims, 1);
+    decode: function(encoded, dims, opt_factor) {
+        var factor = opt_factor || 1;
+        var flatPoints = this.decodeDeltas(encoded, dims, factor);
         var flatPointsLength = flatPoints.length;
 
         var points = [];
@@ -177,7 +178,8 @@ OpenLayers.Format.EncodedPolyline = OpenLayers.Class(OpenLayers.Format, {
      * Returns:
      * {String} An encoded string
      */
-    encode: function (points, dims) {
+    encode: function (points, dims, opt_factor) {
+        var factor = opt_factor || 1;
         var flatPoints = [];
 
         var pointsLength = points.length;
@@ -189,7 +191,7 @@ OpenLayers.Format.EncodedPolyline = OpenLayers.Class(OpenLayers.Format, {
             }
         }
 
-        return this.encodeDeltas(flatPoints, dims, 1);
+        return this.encodeDeltas(flatPoints, dims, factor);
     },
 
     /**