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Oh please Google, give us some well named methods that solve this issue. We muddle around with obfuscated code trying in vein to solve your pesky setCenter flicker. This brings us a bit closer with even sized viewports but is still embarassingly wrong for users panning across the dateline with odd sized viewport. r=crschmidt (closes #1174)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@5627 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2008-01-02 19:36:12 +00:00
parent 4effccbb97
commit d80bb6bd74
1 changed files with 13 additions and 2 deletions
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15
lib/OpenLayers/Layer/EventPane.js
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@@ -239,8 +239,6 @@ OpenLayers.Layer.EventPane = OpenLayers.Class(OpenLayers.Layer, {
if ( !(newCenter.equals(oldCenter)) ||
!(newZoom == oldZoom) ) {
var center = this.getMapObjectLonLatFromOLLonLat(newCenter);
if (dragging && this.dragPanMapObject &&
this.smoothDragPan) {
var resolution = this.map.getResolution();
@@ -248,6 +246,7 @@ OpenLayers.Layer.EventPane = OpenLayers.Class(OpenLayers.Layer, {
var dY = (newCenter.lat - oldCenter.lat) / resolution;
this.dragPanMapObject(dX, dY);
} else {
var center = this.getMapObjectLonLatFromOLLonLat(newCenter);
var zoom = this.getMapObjectZoomFromOLZoom(newZoom);
this.setMapObjectCenter(center, zoom, dragging);
}
@@ -282,6 +281,18 @@ OpenLayers.Layer.EventPane = OpenLayers.Class(OpenLayers.Layer, {
var moPixel = this.getMapObjectPixelFromOLPixel(viewPortPx);
var moLonLat = this.getMapObjectLonLatFromMapObjectPixel(moPixel);
lonlat = this.getOLLonLatFromMapObjectLonLat(moLonLat);
var xrem = this.map.size.w % 2;
var yrem = this.map.size.h % 2;
if(xrem != 0 || yrem != 0) {
// odd sized viewport
var olPx = viewPortPx.add(xrem, yrem);
var moPx = this.getMapObjectPixelFromOLPixel(olPx);
var moLoc = this.getMapObjectLonLatFromMapObjectPixel(moPx);
var olLoc = this.getOLLonLatFromMapObjectLonLat(moLoc);
// adjust by half a pixel in odd dimension(s)
lonlat.lon += (olLoc.lon - lonlat.lon) / 2;
lonlat.lat += (olLoc.lat - lonlat.lat) / 2;
}
}
return lonlat;
},