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

[Derek Morgan]

Etienne - Thanks for you advice.  Gdalwarp did work quite nicely.
Afterwhich, I just needed to clip the resulting raster back down to my
extent of interest which is no problem.

Cheers,
Derek



On Thu, Mar 22, 2012 at 10:37 PM, Etienne Tourigny
<etourigny.dev at gmail.com> wrote:
> 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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