I realized that this is the wrong approach.
However, it seems that increasing the width and height of a tile to
257%/257% (in the case of an XYZ layer), appears to make the artifacts
go away. I'll spend some time trying to find a reasonable approach
across all browsers and layer types.
-- James
On 8/3/2012 10:04 AM, James Lamanna wrote:
Hi,
I'm working on an application that requires that there be fractional
zoom capability for almost all layers.
I've been working with some XYZ layers with fractionalZoom (by setting
serverResolutions), however, I noticed that there are nasty white
grid-line artifacts that show up when on non integral zoom levels.
Upon reviewing what is going on, the artifacts are generated as a result
of scaling the layer <div>. I believe that this approach should be
changed to scale the tile images, rather than the layer div.
So, transformDiv() would have code in it like this:
transformDiv: function(scale) {
$(this.div).find('img').css('width',
function(i,v){ return v * scale; });
$(this.div).find('img').css('height',
function(i,v) { return v * scale; });
$(this.div).find('img').css('left',
function(i, v) { return v * scale; });
$(this.div).find('img').css('top',
function(i, v) { return v * scale; });
....
This appears to remove the tile artifacts.
Thanks.
-- James
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