[GRASS-user] Re: Space Oblique Mercator (SOM) and "lsat" project code

[Hamish]

> Anders Fahlén wrote:
> > Currently I'm working on a watershed risk
> > assessment task where I have Landsat TM data
> > spanning over a 20 year period. In order to
> > convert all the different Landsat projections to
> > one common georeferenced ground I want to import
> > the raster files into separate mapsets with
> > original projections as a first step.

Dylan Beaudette wrote:
> See what gdalinfo thinks about these files. If it can read their
> coordinate  system, chances are that you will be able to warp them to
> any new coordinate  system with little difficulty.

moreover, if gdalinfo is happy, try the "r.in.gdal location=" option to
create a new (projected) location for the image automatically.
In GRASS 6.1 you can do this from the startup screen.


> Anders:
> > Secondly, is there a way to make on the fly
> > project conversions, from SOM to UTM 47, using the OGR tool?

yes, for things like coordinates (also m.proj in GRASS 6.1).

for LANDSAT images use gdal_transform and/or gdalwarp.



Hamish