[OpenLayers-Trac] [OpenLayers] #2856: canvas renderer doesn't properly render interior rings in polygons

[OpenLayers]

#2856: canvas renderer doesn't properly render interior rings in polygons
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 Reporter:  tschaub          |       Owner:  crschmidt   
     Type:  feature          |      Status:  new         
 Priority:  minor            |   Milestone:  2.11 Release
Component:  Renderer.Canvas  |     Version:  2.10        
 Keywords:                   |       State:              
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 The canvas renderer needs to change the canvas context's
 {{{globalCompositeOperation}}} to properly erase interior rings from
 polygons.  See
 [http://trac.osgeo.org/openlayers/browser/sandbox/tschaub/canvas/lib/OpenLayers/Renderer/Canvas.js?rev=10741#L467
 this Canvas.js] for one way to do this.

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Ticket URL: <http://trac.openlayers.org/ticket/2856>
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