Hi, apologies for the cross post, but Chris indicated that mapbuilder
was also looking for a solution to this problem. And thanks to Chris
for helping me to solve this one.
My problem: when using OL with singleTile layers, I need to be able
to allow users to zoom to arbitrary extents. OL internally keeps a
list of fixed resolutions and snaps to those, meaning that zooming to
extents often has the appearance of being 'buffered' somewhat. In
some cases, zooming results in panning.
My solution:
assuming that I can track when I am only using singleTile layers, and
that I always use zoomToExtent:
if (this.bSingleTile) {
var viewSize = this.oMapOL.getSize();
var idealResolution = Math.max( extent.getWidth() / viewSize.w,
extent.getHeight() / viewSize.h );
this.oMapOL.baseLayer.resolutions = [idealResolution];
this.oMapOL.zoom = 1;
}
this.oMapOL.zoomToExtent(extent);
Cheers
Paul
+-----------------------------------------------------------------+
|Paul Spencer [EMAIL PROTECTED] |
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|Chief Technology Officer |
|DM Solutions Group Inc http://www.dmsolutions.ca/ |
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