[postgis-devel] [PostGIS] #925: [raster] ST_Transform

PostGIS trac at osgeo.org
Tue Jun 7 13:09:28 PDT 2011


#925: [raster] ST_Transform
----------------------------+-----------------------------------------------
 Reporter:  dustymugs       |       Owner:  dustymugs            
     Type:  task            |      Status:  assigned             
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  
----------------------------+-----------------------------------------------

Comment(by dustymugs):

 Replying to [comment:12 pracine]:
 > Great!
 >
 > What do you mean by "at the expense of not doing multiple actions at the
 same time as the reprojection (e.g. changing the pixel scale or the
 skew)"?
 >
 > Do we need a special build of GDAL?

 You don't need a special build.  The standard build is just fine.  When I
 use the utility gdalwarp, I like to specify the pixel size of the output
 raster as the pixel size can and probably will change with the
 reprojection.  The current underlying GDAL function doesn't provide the
 opportunity to specify the GeoTransform matrix as it autogenerates it.
 The code for gdalwarp shows how to do it but I haven't had the time to
 walk my way through it.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/925#comment:14>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.


More information about the postgis-devel mailing list