I've posted this problem to the users list but it probably makes more
sense to post it here.
I'm having problems with Vector layers that use a Canvas renderer.
1. If the Canvas layer is placed below other layers (not rendered as
Canvases) it doesn't allow click events (onFeatureSelect, etc.) to the
overlapping layers ABOVE it.
2. If the Canvas layer has events on it they persist even when I turn
off the Canvas layer using the LayerSwitcher and it continues to block
the events of the layers above it.
3. The events do not persist if I turn the Canvas layer off and then pan
the map.
I used/altered the Canvas hit detection example to verify some of the
things above:
http://dev.openlayers.org/releases/OpenLayers-2.11/examples/canvas-hit-detection.html
My alterations to canvas.js -http://pastebin.com/tAV9Dvcx
I'm wondering if something could be altered in LayerSwitcher.js 's
updateMap function to address this?
updateMap: function() {
...
// set the correct visibilities for the overlays
for(var i=0, len=this.dataLayers.length; i<len; i++) {
var layerEntry = this.dataLayers[i];
layerEntry.layer.setVisibility(layerEntry.inputElem.checked);
}
Is it possible that setVisibility(false) when applied to a Canvas layer
does not fully remove the layer from the map?
And even if that's correct, I still don't understand why the layer order
is not respected.
Any thoughts?
-Mike
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