Line thickening

[Ronald Thomas]

Bill Brown (brown at zorro.cecer.army.mil) suggested use of a shaded relief 
raster for use in d.3d to improve "dimensionality"; and here are some tips
on how to accomplish it.

1) Use "shade.rel.sh" to develop a pleasing "aspect"-like graphic image; it
looks like an aspect map, but its values are solely a function of graphics,
it is not data.  (With a little experimentation, you can develop an image
that puts the "r.slope.aspect" generated aspect image to shame)

2) Use your new shade image in "d.his"; using only the 'hue' and
'intensity' options ; example:
	d.his h_map=<whatever> i_map=<new.shade>   

this will create a new image on your monitor; add a "o=<new.out>" to create
an actual raster layer (type in "d.his help" to get the correct syntax).


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   Ronald Thomas                         ^  ront at meeker.cfnr.colostate.edu
    Natural Resources Spec. (GIS)        ^  
     Resources Management Division       ^   Phone: 303-586-3565  x285
      Rocky Mountain National Park       ^          700-323-7285  (FTS)
       Estes Park, CO  80517             ^   FAX:   303-586-4702
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