[gdal-dev] shifting (or snapping) one raster to another

[Etienne Tourigny]

Derek - unless I am mistaken, gdalwarp should work fine for this, as
long as both datasets are properly geo-referenced.

gdalwarp tmp1.tif tmp2.tif result.tif

The order of the arguments controls how they are stacked one on top of
the other.

Etienne
On Thu, Mar 22, 2012 at 11:12 PM, Derek Morgan <jdmorgan at unca.edu> wrote:
> Hello,
>
> I am in a jam with ArcGIS, and am hoping there is a easier way to do
> this with GDAL.  Here is the situation:  I am converting a vector
> dataset of county polygons to raster at a pixel resolution of 231 m.
> However, I want this to line up with a different raster dataset I have
> at a much larger extent, but also the same resolution 231 m. As you
> probably guessed the two datasets are slightly askew as they have
> different extents.  I would like to align the newly created county
> raster with the larger raster data set by shifting (or snapping) it to
> the closest pixels.  Hopefully, this makes enough sense for someone to
> let me know if this can be done in GDAL.
>
> Thanks ahead of time,
> Derek
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