[mapguide-trac] #458: Can't force clipping in GETMAPIMAGE request (performance bottleneck in fusion)

MapGuide Open Source trac_mapguide at osgeo.org
Mon Feb 25 11:49:42 EST 2008


#458: Can't force clipping in GETMAPIMAGE request (performance bottleneck in
fusion)
---------------------------+------------------------------------------------
   Reporter:  edzimmerman  |       Owner:  edzimmerman
       Type:  defect       |      Status:  new        
   Priority:  medium       |   Milestone:  2.0        
  Component:  General      |     Version:  2.0.0      
   Severity:  major        |    Keywords:             
External_id:  1021266      |  
---------------------------+------------------------------------------------
 Fusion uses a GETMAPIMAGE request to render the map image. GETMAPIMAGE
 currently always sets the requiresClipping flag on the renderer to false.
 When a map contains a layer using labels, the renderer will attempt to
 render all the labels even when these are not inside the area being
 rendered. This design is intentional so that tiles rendered will have
 label flowing contiguously across tiles. However, when not tiling, there
 currently is no way to force the renderer to clip which would greatly
 increase performance for the this common case.

-- 
Ticket URL: <http://trac.osgeo.org/mapguide/ticket/458>
MapGuide Open Source <http://mapguide.osgeo.org/>
MapGuide Open Source Internals


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