[GRASS-user] Find location of pixels

I would like to find the location of pixels in a raster that have a specific value.

I have a large raster with a small number of values that I think are not classified correctly. I would like to be able to ‘go to’ the location(s) of those pixels so I can examine the underlying inputs.

I would probably extract them using r.mapcalc
if(map < …, map, null())

and then convert them to vector points using r.to.vect.

Anna

···

On Tue, Dec 8, 2015 at 3:46 PM, Marvin Eng <knot.tyer@gmail.com> wrote:

I would like to find the location of pixels in a raster that have a specific value.

I have a large raster with a small number of values that I think are not classified correctly. I would like to be able to ‘go to’ the location(s) of those pixels so I can examine the underlying inputs.


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