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@@ -5,16 +5,20 @@ parameters for inclination, azimuth, and the geographic location of a
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point on the plane.<br>
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The angle orientations of the <em>azimuth</em> parameter increase counter-clockwise,
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i.e., 0 degree = N, 45 degree = NW, 90 degree = W etc.
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-<p>Increasing values of the <em>dip</em> parameter progressively lower (or dip) the northern
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+<p>
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+Increasing values of the <em>dip</em> parameter progressively lower (or dip) the northern
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half of the plane, and incline the southern half, assuming the <em>azimuth</em> parameter
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is held constant at 0 degrees.
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<h2>NOTES</h2>
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+
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<tt>g.region -c</tt> provides the easting and northing coordinates for
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the center of the current region.
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-<p><em>int</em> maps take less disk space than <em>float</em>s, which in turn
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-take up less space than <em>double</em>s (but can be less exact).
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+<p>
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+<em>CELL</em> (integer) maps take less disk space than <em>FCELL</em>s (floating point),
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+which in turn take up less space than <em>DCELL</em>s (double precision floating point).
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+<!-- is that true because of grass's compression? otherwise both int and float are both 4 bytes per cell -->
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<h2>EXAMPLE</h2>
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@@ -25,12 +29,15 @@ A tilted plane in the North Carolina sample dataset region:
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g.region -d
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g.region -c
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r.plane myplane45 dip=45 az=90 east=527500.0 north=165000.0 \
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- elev=1000 type=float
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+ elev=1000 type=FCELL
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</pre></div>
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+
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<h2>AUTHOR</h2>
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-Unknown<br>
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-Updated to GRASS 5.7 by Michael Barton, Arizona State University
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+Unknown, presumably CERL<br>
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+Updated to GRASS 5.7 by Michael Barton, Arizona State University<br>
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+Full rewrite for GRASS 7 by Glynn Clements
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-<p><i>Last changed: $Date$</i>
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+<p>
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+<i>Last changed: $Date$</i>
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Hamish Bowman