Pixels increase right and down.

2012-06-23 02:00:28 +02:00
parent b6cfeecdfb
commit ef0fd8da60
1 changed files with 2 additions and 2 deletions
--- a/src/ol/Map.js
+++ b/src/ol/Map.js
@@ -409,10 +409,10 @@ ol.Map.prototype.getEvents = function() {
 * @param {number} dy pixels to move in x direction
 */
 ol.Map.prototype.moveByPx = function(dx, dy) {
-    if (goog.isDef(this.zoom_)) {
+    if (!goog.isNull(this.center_) && goog.isDef(this.zoom_)) {
        var resolution = this.getResolutionForZoom(this.zoom_),
            center = new ol.Loc(
-                this.center_.getX() + dx * resolution,
+                this.center_.getX() - dx * resolution,
                this.center_.getY() + dy * resolution
            );
        this.setCenter(center);