[mapguide-trac] #760: re-projected rasters have lines where the grid triangles meet

[MapGuide Open Source]

#760: re-projected rasters have lines where the grid triangles meet
---------------------------------+------------------------------------------
   Reporter:  tonyfang           |       Owner:  tonyfang
       Type:  defect             |      Status:  new     
   Priority:  low                |   Milestone:          
  Component:  Rendering Service  |     Version:  2.0.1   
   Severity:  minor              |    Keywords:          
External_id:  1147564            |  
---------------------------------+------------------------------------------
 Using Studio...
 - Using Load Procedure: add a raster image, specify the appropriate
 coordinate system
 - add the resultant layer to a map
 - change the map's bg color to something that contrasts with the raster
 image
 - change the map's coordinate system to something else (invoking raster
 re-projection)
 - preview the map

 --> notice there are faint lines where the grid triangles meet


 It is AGG’s anti-aliasing that is causing the grid-lines.

 When I change the calls from render_scanlines_aa (aa = anti-aliasing) to
 render_scanlines_bin, the grid lines disappear.

-- 
Ticket URL: <http://trac.osgeo.org/mapguide/ticket/760>
MapGuide Open Source <http://mapguide.osgeo.org/>
MapGuide Open Source Internals