                                                                frame_map
Chapter 11 Raster Manipulation

The frame_map command connects or disconnects the four map corners, in
sequence, on the raster display.  To generate a visible map border, the d
(draw) option should be included as an argument to this command.  To erase an
existing map border (frame), the command should include the e (erase)
parameter.  In addition, the user may designate that the frame be calculated
and drawn in the raster coordinate system by entering r as a parameter to this
command, or in a corrected geodetic projection by supplying a g with the
frame_map command.  The raster (r) option will simply connect the four  corners
as they are stored in pixel coordinates derived during the raster registration
process.  A geodetic (g) frame will connect the four corners as they are
calculated from their proper geodetic positions.

frame_map
     
    Draws/erases the map border.
     
         frame_map action arg

    Draws/erases lines from SW to NW to NE to SE to SW raster corners, thereby
    creating a frame, or border, around the active map.
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    Options/arguments:

         action    Framing action, where:
                   d = draw
                   e = erase
         arg       Type of fram eto be drawn/erased, where:
                   g = geodetic
                   r = raster
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    Example(s):

    To draw a frame for the geodetic corners, enter:

         frame_map d g
     
    To erase an existing raster frame, enter:

         frame_map e r  
     
    To erase a geodetic frame, enter:
     
         frame_map e g
     
    To erase a geodetic frame, enter:
     
         frame_map e g



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    See also:

              erase_margin, margin, level_dup
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