r.circle
GRASS Reference Manual
r.circle NAME r.circle - Creates a raster map containing concentric rings around a given point. GRASS VERSION 5.x SYNOPSIS r.circle output=name] DESCRIPTION This module creates a raster map containing concentric rings around a given point. The cell values are increasing linear from the center point to outer rings. OPTIONS Parameters: name for new raster file. The coordinate of the center (easting, northing). Multiplier AUTHOR Bill Brown, U.S. Army Construction Engineering Research Laboratory GRASS 5.0beta6 GRASS Development Team 1