[GRASS-user] Reclassification RASTER

GRASS GRASS user
1

Hi,

I create each viewshed raster map for every observer location with flag (b) which denotes 0-non-visible and 1-visible values.
Then i add all viewshed rasters to get integrated raster. So my integrated raster contains values >=1. In the raster, all values

1 represents visible area. Therefore, i need to reclassify the image by setting all values > 1 to 1. If i use the following Python
code to have output Name: MASK, is it ok? (out = integraed_raster)

grass.mapcalc(“MASK=if(($ReclassiName > 1),1,1)”,
ReclassiName = out)

2

Hi Brian,

Try using. r.reclass, it’s made specifically for reclassifying maps.

Best,
Daniel

···

2013/1/10 Brian Sanjeewa Rupasinghe <jinkabs@gmail.com>

Hi,

I create each viewshed raster map for every observer location with flag (b) which denotes 0-non-visible and 1-visible values.
Then i add all viewshed rasters to get integrated raster. So my integrated raster contains values >=1. In the raster, all values

1 represents visible area. Therefore, i need to reclassify the image by setting all values > 1 to 1. If i use the following Python
code to have output Name: MASK, is it ok? (out = integraed_raster)

grass.mapcalc(“MASK=if(($ReclassiName > 1),1,1)”,
ReclassiName = out)

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