                                                                     dem_view
Chapter 8 Plotting and Reporting

The dem_view function allows the user to view a digital elevation model (dem)
on the screen as if the topography were side-lit.  This allows a final check of
the dem file for elevation errors, smoothing, etc.

dem_view

    Allows viewing of a dem file.

         dem_view fname d

    Displays a side-lit dem on the screen.  The file viewed is specified by
    fname, and the direction of the lighting by d.
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    Options/arguments:

         fname     File name of the dem to be viewed
         d         Direction of lighting code, where:
                   0 = lit from north/northwest
                   1 = lit from east/northeast
                   2 = lit from south/southeast
                   3 = lit from west/southwest
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    Example(s):

    To view a dem file named 452212045.dem as if lit from the north/northwest,
    enter:

         dem_view 452212045.dem 0
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    See also:

              export
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