The centroids of raster areas are determined by r.volume. Check the
g.manual entry for details.
Allan Axon
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Ohio Department of Natural Resources |
Division of Geological Survey |
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Internet: aaxon@ogsun1.dnr.ohio.gov
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The only thing I've seen that shows a centroid is in output from v.area.
Should you convert your raster map through r.poly to a vector map, v.area
could be checked for viability. Rick> How does one calculate the center of an irregularly shaped area
> in a raster map in GRASS4.1?------------------------------------------------------------------------
Rick Thompson- Research Assistant E-mail: rick@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-5736
Ozark Hall Rm. 12 Fax: 575-3846
University of Arkansas
Fayetteville, AR 72701