Re: [gdal-dev] Warping quality with small geolocation arrays

2012-11-26 Thread Knut-Frode Dagestad
Frank, I created a ticket with the same description as below: http://trac.osgeo.org/gdal/ticket/4907 My test cases are from self-made Raw-VRTs, so I have no immediate reproducable test image/script to attach. However, if useful, I can construct an example to attach in a couple of days. Thank

Re: [gdal-dev] Warping quality with small geolocation arrays

2012-11-26 Thread Frank Warmerdam
On 12-11-26 12:11 PM, Knut-Frode Dagestad wrote: Dear list, Warping datasets with geolocation arrays works fine if the arrays have the same size as the other raster bands. However, if the geolocation arrays are much smaller, the quality is very bad. Say I have a 2000x2000 px dataset with 100x10

[gdal-dev] Warping quality with small geolocation arrays

2012-11-26 Thread Knut-Frode Dagestad
Dear list, Warping datasets with geolocation arrays works fine if the arrays have the same size as the other raster bands. However, if the geolocation arrays are much smaller, the quality is very bad. Say I have a 2000x2000 px dataset with 100x100 px sized geolocation arrays. Then a warped i