Richard, I can strip the crs off using gdal_translate and setting a Baseline profile. But I wanted to test what happens when a raster is already georeferenced.
Giovanni Inviato da dispositivo mobile Il giorno 26/ott/2011 09.23, "Richard Duivenvoorde" <[email protected]> ha scritto: > On 2011-10-26 00:42, G. Allegri wrote: > > Ok, i got it. > > The reason it doesn't work is probably easily explained: the source X/Y > > are considered as raster space coordinates, while I thought that having > > the raster a CRS assigned this was kept into account during the warping. > > Probably manual re-georeferencing is conceptually unuseful, outside my > > exercise. Even if reprojection wasn't enough, the best way would be to > > remove any CRS reference from it. > > Tomorrow I will do more tests, but I'm pretty sure that I was simply > > trying a wrong procedure... > > I think qgis/ogr takes your crs into account. But if you open your > raster (tiff) in Gimp, and save it again as a tiff, Gimp will 'help' you > to remove the crs information from your geo(tiff), giving you a plane > raster with not crs information to do your tests :-) > > R >
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