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@@ -58,7 +58,7 @@ the program can be used to generate a flow direction map for any
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sub-area within the full map layer. Also, <em>r.fill.dir</em> is
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sub-area within the full map layer. Also, <em>r.fill.dir</em> is
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sensitive to any <em>mask</em> in effect.
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sensitive to any <em>mask</em> in effect.
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<p>
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<p>
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-In some cases it may be necessary to run r.fill.dir repeatedly (using output
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+In some cases it may be necessary to run <em>r.fill.dir</em> repeatedly (using output
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from one run as input to the next run) before all of problem areas are
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from one run as input to the next run) before all of problem areas are
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filled.
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filled.
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@@ -68,26 +68,33 @@ filled.
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r.fill.dir input=ansi.elev elevation=ansi.fill.elev direction=ansi.asp
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r.fill.dir input=ansi.elev elevation=ansi.fill.elev direction=ansi.asp
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</pre></div>
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</pre></div>
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-<p>will create a depressionless (sinkless) elevation map ansi.fill.elev and a flow
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-direction map ansi.asp for the type "grass".
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+Will create a depressionless (sinkless) elevation
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+map <i>ansi.fill.elev</i> and a flow direction map <i>ansi.asp</i> for the
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+type "grass".
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+
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+<h2>REFERENCES</h2>
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+
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+<ul>
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+<li>Beasley, D.B. and L.F. Huggins. 1982. ANSWERS (areal nonpoint source watershed environmental response simulation): User's manual. U.S. EPA-905/9-82-001, Chicago, IL, 54 p.
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+<li>Jenson, S.K., and J.O. Domingue. 1988. Extracting topographic structure from
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+digital elevation model data for geographic information system analysis. Photogram. Engr. and Remote Sens. 54: 1593-1600.
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+<li>Young, R.A., C.A. Onstad, D.D. Bosch and W.P. Anderson. 1985. Agricultural nonpoint surface pollution models (AGNPS) I and II model documentation. St. Paul: Minn. Pollution control Agency and Washington D.C., USDA-Agricultural Research
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+Service.
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+</ul>
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<h2>SEE ALSO</h2>
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<h2>SEE ALSO</h2>
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<em>
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<em>
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<a href="r.fillnulls.html">r.fillnulls</a>,
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<a href="r.fillnulls.html">r.fillnulls</a>,
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-<a href="r.slope.aspect.html">r.slope.aspect</a></em>
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+<a href="r.slope.aspect.html">r.slope.aspect</a>
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+</em>
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-<p>Beasley, D.B. and L.F. Huggins. 1982. ANSWERS (areal nonpoint source watershed environmental response simulation): User's manual. U.S. EPA-905/9-82-001, Chicago, IL, 54 p.
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-<p>Jenson, S.K., and J.O. Domingue. 1988. Extracting topographic structure from
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-digital elevation model data for geographic information system analysis. Photogram. Engr. and Remote Sens. 54: 1593-1600.
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-<p>Young, R.A., C.A. Onstad, D.D. Bosch and W.P. Anderson. 1985. Agricultural nonpoint surface pollution models (AGNPS) I and II model documentation. St. Paul: Minn. Pollution control Agency and Washington D.C., USDA-Agricultural Research
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-Service.
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-<p>
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-<h2>AUTHOR</h2>
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+<h2>AUTHORS</h2>
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Fortran version:
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Fortran version:
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Raghavan Srinivasan, Agricultural Engineering Department, Purdue
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Raghavan Srinivasan, Agricultural Engineering Department, Purdue
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University<br>
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University<br>
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Rewrite to C with enhancements:
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Rewrite to C with enhancements:
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Roger S. Miller
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Roger S. Miller
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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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