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Adding animated zooming

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This commit is contained in:
ahocevar
2012-12-23 18:47:03 +01:00
parent d2b3bded72
commit 21448d2fd5
17 changed files with 239 additions and 67 deletions
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20
lib/OpenLayers/Control/Navigation.js
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@@ -238,8 +238,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
* evt - {Event}
*/
defaultDblClick: function (evt) {
var newCenter = this.map.getLonLatFromViewPortPx( evt.xy );
this.map.setCenter(newCenter, this.map.zoom + 1);
this.map.zoomTo(this.map.zoom + 1, evt.xy);
},
/**
@@ -249,8 +248,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
* evt - {Event}
*/
defaultDblRightClick: function (evt) {
var newCenter = this.map.getLonLatFromViewPortPx( evt.xy );
this.map.setCenter(newCenter, this.map.zoom - 1);
this.map.zoomTo(this.map.zoom - 1, evt.xy);
},
/**
@@ -264,22 +262,14 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
if (!this.map.fractionalZoom) {
deltaZ = Math.round(deltaZ);
}
var currentZoom = this.map.getZoom();
var newZoom = this.map.getZoom() + deltaZ;
var currentZoom = this.map.getZoom(),
newZoom = currentZoom + deltaZ;
newZoom = Math.max(newZoom, 0);
newZoom = Math.min(newZoom, this.map.getNumZoomLevels());
if (newZoom === currentZoom) {
return;
}
var size = this.map.getSize();
var deltaX = size.w/2 - evt.xy.x;
var deltaY = evt.xy.y - size.h/2;
var newRes = this.map.baseLayer.getResolutionForZoom(newZoom);
var zoomPoint = this.map.getLonLatFromPixel(evt.xy);
var newCenter = new OpenLayers.LonLat(
zoomPoint.lon + deltaX * newRes,
zoomPoint.lat + deltaY * newRes );
this.map.setCenter( newCenter, newZoom );
this.map.zoomTo(newZoom, evt.xy);
},
/**