[Mapguide-trac] [mapguide-trac] #2340: MgCooker using scaleindexes backwards while rendering tiles

MapGuide Open Source trac_mapguide at osgeo.org
Thu Aug 29 04:26:07 PDT 2013


#2340: MgCooker using scaleindexes backwards while rendering tiles
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   Reporter:  Gyufi    |       Owner:  jng                    
       Type:  defect   |      Status:  new                    
   Priority:  high     |   Milestone:  Maestro-5.0-maintenance
  Component:  Maestro  |     Version:                         
   Severity:  major    |    Keywords:                         
External_id:           |  
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Comment(by 14364):

 Replying to [comment:5 jng]:
 > Is the issue basically when going through the "pyramid" of tiles to
 generate, MgCooker is starting from the bottom instead of the top?

 I don't understand exactly what you mean.
 If I understand you, then this is the answer:

   It doesn't matter where MgCooker starting the generation, bottom or top.

   With the above example

   With 1:90000 scale:
   - MgCooker using scaleindex=0
   - MapGuide using scaleindex=9

   With 1:250 scale:
   - MgCooker using scaleindex=9
   - MapGuide using scaleindex=0

   Another example:
     I generate tiles with MgCooker in 1:8000 scale (and only this scal),
 it generates tiles with scaleindex=4.
     MapGuide using scaleindex=5 for 1:8000 scale.

     Therefore when I view the Map in 1:4000 in Viewer (Fusion), it drawing
 1:8000 tiles to the left-top corner (of the entire map) and start to
 generate the remaining tiles in 1:4000 scale (which are not found in the
 TileCache). (I will attach a picture about it soon.)

-- 
Ticket URL: <http://trac.osgeo.org/mapguide/ticket/2340#comment:6>
MapGuide Open Source <http://mapguide.osgeo.org/>
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