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No longer need to calculate the anchor transformation.

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ahocevar
2012-06-23 16:16:13 +02:00
parent 026b60826e
commit 81b8a472d8
1 changed files with 1 additions and 16 deletions
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17
src/ol/control/Navigation.js
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@@ -63,22 +63,7 @@ ol.control.Navigation.prototype.zoomMap = function(evt) {
return;
}
var currentZoom = /** @type {number} */ (map.getZoom()),
newZoom = currentZoom - delta;
newZoom = Math.max(newZoom, 0);
newZoom = Math.min(newZoom, map.getNumZoomLevels());
if (newZoom === currentZoom) {
return;
}
var xy = map.getEvents().getPointerPosition(evt),
size = map.getSize(),
newRes = map.getResolutionForZoom(newZoom),
zoomPoint = map.getLocForPixel(xy),
newCenter = new ol.Loc(
zoomPoint.getX() + (size.width/2 - xy.x) * newRes,
zoomPoint.getY() - (size.height/2 - xy.y) * newRes
);
map.zoomTo(newZoom, newCenter);
map.setZoom(map.getZoom()-delta, map.getEvents().getPointerPosition(evt));
evt.preventDefault();
return false;