Re: [gdal-dev] Looking for gdal_merge workflow

2015-09-16 Thread Carl Godkin
Thank you both very much! This worked and produced the result I sought: gdalwarp -tr X Y smaller.tif larger.tif out.tif Thanks again, carl On Wed, Sep 16, 2015 at 10:03 AM, Even Rouault wrote: > Le mercredi 16 septembre 2015 18:48:43, Carl Godkin a écrit : > > Thank you for the suggestion.

Re: [gdal-dev] Looking for gdal_merge workflow

2015-09-16 Thread Even Rouault
Le mercredi 16 septembre 2015 18:48:43, Carl Godkin a écrit : > Thank you for the suggestion. I never realized that gdalwarp was useful > for more than coordinate system transformation! > > Now I'm trying to figure out the right options for this since gdalwarp's > manual page hardly mentions the

Re: [gdal-dev] Looking for gdal_merge workflow

2015-09-16 Thread Carl Godkin
Thank you for the suggestion. I never realized that gdalwarp was useful for more than coordinate system transformation! Now I'm trying to figure out the right options for this since gdalwarp's manual page hardly mentions the mosaic operations. Given my hi-res image with plenty of nodata and lo-r

Re: [gdal-dev] Looking for gdal_merge workflow

2015-09-16 Thread Jean-Claude Repetto
Le 16/09/2015 17:57, Carl Godkin a écrit : > > Can you suggest a workflow to get what I want? Is there another tool > for this I should use instead? Hi, You should consider using gdalwarp, which is a more powerful tool than gdal_merge, that was written at the beginning to demonstrate how to use

[gdal-dev] Looking for gdal_merge workflow

2015-09-16 Thread Carl Godkin
Hi, I have two satellite images of an area near the coast and I would like to merge them somehow to get the best of both. The larger image has black areas out to sea because the WMS service doesn't have tiles at the highest resolution offshore. (I've used "gdal_translate -a_nodata 0" to mark the