1r3.mask(1)                    Grass User's Manual                   r3.mask(1)
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NAME

6       r3.mask  - Establishes the current working 3D raster mask.
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KEYWORDS

9       raster3d, voxel
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SYNOPSIS

12       r3.mask
13       r3.mask help
14       r3.mask map=string  [maskvalues=val[-val][,val[-val],...]]
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16   Parameters:
17       map=string
18           3dcell map with reference values
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20       maskvalues=val[-val][,val[-val],...]
21           List of cell values to be masked out
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DESCRIPTION

24       File  map  is  used as reference file.  Cells in the mask are marked as
25       "mask out" if the corresponding cell in map contains  a  value  in  the
26       range specified with maskvalues.
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28       Before a new 3d-mask can be created the exisitng mask has to be removed
29       with g.remove.
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31   Parameters:
32       maskvalues
33              Values specified to be masked out
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35       grid3d Name of G3D-map that is used as the mask reference
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SEE ALSO

38       g.remove
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AUTHORS

41       Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown,  Lubos
42       Mitas, Jaro Hofierka
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44       Last changed: $Date: 2006/04/20 21:31:24 $
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46       Full index
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50GRASS 6.2.2                                                         r3.mask(1)