[gdal-dev] gdalwarp on a file + world file - different limits

2009-01-25 Thread Joaquim Luis
Hi, For the next version of GMT we have extended the ability of the ps2raster program to take a postscript file generated by GMT either create a world file, or even further, to call gdalwarp to create a true geotiff file. Next is an example on how it will work pscoast -JS-55/-60/15c -R-77/-55

Re: [gdal-dev] gdalwarp on a file + world file - different limits

2009-01-26 Thread Frank Warmerdam
Joaquim Luis wrote: (which executes this command) gdalwarp -s_srs "+proj=stere +lat_0=-60 +lon_0=-55 +k=1 +x_0=0 +y_0=0 +a=6378137.000 +b=6356752.314245" out.tif out.tiff Joaquim, I'm curious why you use the above command. What is it intended to do? If it is just to assign the coordinate sys

Re: [gdal-dev] gdalwarp on a file + world file - different limits

2009-01-26 Thread Joaquim Luis
Frank, I'm afraid there was nothing so thought in the use of gdalwarp. Yes, the idea is to assign a coordinate system. Since the world file is meant for referencing linear referencing, it could not correctly describe (for instance) a Mercator projected image. So I thought in using gdalwarp. The