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Following up on this, since I haven't heard anything. I've played
around with the canvas hit detection example here: <br>
<br>
<a class="moz-txt-link-freetext" href="http://dev.openlayers.org/releases/OpenLayers-2.11/examples/canvas-hit-detection.html">http://dev.openlayers.org/releases/OpenLayers-2.11/examples/canvas-hit-detection.html</a><br>
<br>
and did the following:<br>
<br>
- made an overlay layer with some of features so that I could turn
the layer on/off<br>
- added the LayerSwitcher control to the map<br>
- added onFeatureSelect and onFeatureUnselect events to the layers
so a popup appears when you click on the features<br>
- the popups appear when clicking on the visible features<br>
- AND the popups appear when clicking on the "invisible" features in
the overlay when it is TURNED OFF<br>
<br>
So, is this an issue with the HTML5 Canvas element itself or the way
OL uses it to render Vector layers?<br>
<br>
Does turning a Canvas layer "off" via LayerSwitcher require some
extra code?<br>
<br>
-Mike<br>
<br>
<br>
<div class="moz-cite-prefix">On 6/26/2012 1:42 PM, Mike Ryan wrote:<br>
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<blockquote class=" cite" id="mid_4FE9F49C_7040102_mry4n_net"
cite="mid:4FE9F49C.7040102@mry4n.net" type="cite">
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charset=ISO-8859-1">
When I add a Vector layer using a Canvas renderer two bad things
happen:<br>
<br>
1. Other Vector layers with points that have click events attached
and are within the area covered by the Canvas layer are no longer
clickable. The Canvas layers is blocking the click event. <br>
<br>
If a click event was added to the Canvas layer, the Canvas click
event is fired rather than the point's in the other layer. <br>
<br>
Points in the other layer that are not within the Canvas layer
area work properly.<br>
<br>
2. Even when I switch off the Canvas layer with the layerswitcher,
the Canvas layer still behaves the same way -- even though the
canvas layer can no longer be seen.<br>
<br>
Who's got an idea of what might be going on here?<br>
<br>
-Mike </blockquote>
<br>
<br>
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