[QGIS-trac] Re: [Quantum GIS] #2024: Add Raster Stretching/Enhancement based on portion of image in current window

Quantum GIS qgis at qgis.org
Sun Nov 8 09:25:43 EST 2009


#2024: Add Raster Stretching/Enhancement based on portion of image in current
window
-------------------------------------+--------------------------------------
        Reporter:  jgr007            |         Owner:  nobody                                   
            Type:  enhancement       |        Status:  closed                                   
        Priority:  minor: annoyance  |     Milestone:                                           
       Component:  Rasters           |       Version:  HEAD                                     
      Resolution:  fixed             |      Keywords:  contrast stretching, contrast enhancement
Platform_version:                    |      Platform:  All                                      
        Must_fix:  No                |   Status_info:  0                                        
-------------------------------------+--------------------------------------
Changes (by ersts):

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

Comment:

 It turns out this actually would have been a little easier as a plugin,
 but it should be core functionality. The issue at hand is that the layer
 itself does not know what is currently being display. draw() accepts a
 render context object which is used to determine what portion of the layer
 to display, but that object comes from the map canvas.

 There is a solution in the trunk now, r 12015.

-- 
Ticket URL: <http://trac.osgeo.org/qgis/ticket/2024#comment:1>
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Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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