[postgis-devel] [PostGIS] #1139: [raster] Values, when clamped, should not be set to nodata value

[PostGIS]

#1139: [raster] Values, when clamped, should not be set to nodata value
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  Reporter:  pracine  |       Owner:  dustymugs    
      Type:  defect   |      Status:  closed       
  Priority:  medium   |   Milestone:  PostGIS 2.0.0
 Component:  raster   |     Version:  trunk        
Resolution:  fixed    |    Keywords:               
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Changes (by dustymugs):

  * status:  assigned => closed
  * resolution:  => fixed


Comment:

 Fixed in r9380.  This is only in effect for rt_band_set_pixel(), not
 rt_band_set_pixel_line().

 The criteria used for correcting a clamped value is:

 1. If boolean type, value other than NODATA value.

 2. If integer type, value is decremented by 1 unless the clamped value IS
 the minimum value possible for that pixel type where the value incremented
 by 1.

 3. If 32-bit floating point, value is decremented by FLT_EPSILON (minimum
 positive floating point number of type float) unless the clamped value IS
 the minimum value possible for that pixel type where the value incremented
 by FLT_EPSILON.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1139#comment:3>
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