POLYGONS <cover>
 
draws polygon boundaries using the current line symbol.
 
argument
 
<cover> - the coverage containing the polygons to be drawn.  A
<cover> prefixed by a period (.) indicates a map library layer.
 
notes
 
If a set of polygons from <cover> has been selected using RESELECT,
ASELECT or NSELECT, POLYGONS will only draw the boundaries of those polygons of
<cover> that are in the selected set.
 
To shade polygons using one or more shade symbols, use the POLYGONSHADES
command.  To label polygons, use the POLYGONTEXT command.
 
When using POLYGONS to draw the boundaries of those polygons in a selected set,
it may sometimes not be obvious on which side of the boundaries the selected
polygons fall.  To see which polygons have been selected, their label points
could be drawn using the LABELS or LABELMARKERS command, or they could be
shaded using the POLYGONSHADES command.
 
A map library must be selected with the LIBRARY command before POLYGONS can be
used with a map library layer.
 
If you use POLYGONS to draw the polygon outlines from a coverage that contains
polygons and dangling arcs, POLYGONS may sometimes draw dangling arcs.  This is
because it treats these dangling arcs as being part of the outline of the
background polygon (the polygon represented by the first record in the PAT).
To prevent this, you should use the RESELECT command to select a set of
polygons for the coverage that does not include the background polygon.  As the
background polygon has an internal number of 1, you can give this RESELECT like
this:
 
Arcplot: RESELECT <cover> POLYGONS <cover># GT 1
Arcplot: POLYGONS <cover>
 
