[mapguide-trac] #888: Reprojected raster gets blurring when view window crosses outside of original raster extents

[MapGuide Open Source]

#888: Reprojected raster gets blurring when view window crosses outside of
original raster extents
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   Reporter:  stevenxu           |       Owner:  StevenXu
       Type:  defect             |      Status:  new     
   Priority:  medium             |   Milestone:  2.1     
  Component:  Rendering Service  |     Version:  2.0.1   
   Severity:  major              |    Keywords:  blurring
External_id:  1180334            |  
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 1. Load the standard World.tif into MapGuide, using coordinate system
 LL84.[[BR]]
 2. Create a layer using the raster mentioned above.[[BR]]
 3. Create a new map using the raster layer, then reset the coordinate
 system to WORLD-MERCATOR.[[BR]]
 4. Preview the map. [[BR]]
 5. Zoom into a smallish area near the sides of the reprojected raster.
 Note the degree of sharpness of the raster image.[[BR]]
 6. Slowly pan until the edge of the original raster is visible on the view
 window.

 Expected result: The raster to remain at the same relative sharpness as
 you pan back and forth across the extent of the original raster.

 Actual result: The raster goes noticably more blurry when the viewport
 crosses over the extent of the original raster data.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/888>
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