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GRASS 4.1 U.S. Army CERL 6 <br /> g.region <main> GRASS Reference Manual <main> g.region <br /> east-west) to x <br /> nsres=value Set north-south grid resolution value to x <br /> ewres=value Set east-west grid resolution value to x <br /> zoom=name Set current region settings to the <br /> smallest region encompassing all non-zero <br /> data in the named raster map layer that <br /> fall inside the user's current region. <br /> If the user also includes the raster=name <br /> option on the command line, zoom=name will <br /> set the current region settings to the <br /> smallest region encompassing all non-zero <br /> data in the named zoom map that fall <br /> inside the region stated in the cell <br /> header for the named raster map. <br /> align=name Set the current resolution equal to that <br /> of the named raster map, and align the <br /> current region to a row and column edge in <br /> the named map. Alignment only moves the <br /> existing region edges outward to the edges <br /> of the next nearest cell in the named <br /> raster map -- not to the named map's <br /> edges. To perform the latter function, <br /> use the raster=name option. <br /> save=name Save current region settings in the named <br /> region file <br /> EXAMPLES <br /> g.region n=7360100 e=699000 <br /> will reset the northing and easting for the current <br /> region, but leave the south edge, west edge, and the <br /> region cell resolutions unchanged. <br /> g.region -dp s=698000 <br /> will set the current region from the default region for <br /> the GRASS data base location, reset the south edge to <br /> 698000, and then print the result. <br /> g.region n=n+1000 w=w500 <br /> The n=value may also be specified as a function of its <br /> current value: n=n+value increases the current <br /> northing, while n=nvalue decreases it. This is also <br /> true for s=value, e=value, and w=value. In this <br /> example the current region's northern boundary is <br /> extended by 1000 units and the current region's western <br /> boundary is decreased by 500 units. <br /> g.region n=s+1000 e=w+1000 <br />Page 20 <br />01/03/97 2.03-02 - Lange <br />