1bdy(1gv)                                                              bdy(1gv)
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NAME

6       bdy - boundary curve finder
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SYNOPSIS

9       bdy [precision]
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DESCRIPTION

12       Bdy  is a filter used to find boundary curves in Geomview objects.  The
13       program reads a geomview object from  standard  input  and  prints  the
14       resultant  vector object to standard output.  Bdy finds the segments of
15       the vector by first converting the given object into  a  polylist  (See
16       anytooff(1)).   Then, it finds all edges used once and only once in the
17       polylist and combines these edges into a vector object.   The  optional
18       precision  arguement  specifies  the  maximum distance between vertices
19       that are to be considered identical.  By default, it  is  set  to  0.0,
20       indicating  that  the  vertices  must be numerically identical.  It may
21       sometimes be necessary to set it to a higher value  to  compensate  for
22       floating-point error.
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24       The vector object is always black.
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BUGS

27       The  vector  object  is  not  a  particularly compact representation of
28       itself, since it contains many 2-vertex segments which  could  be  com‐
29       bined.
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SEE ALSO

32       geomview(1), anytooff(1), anytopl(3), bdy(3), offconsol(1), plconsol(3)
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AUTHOR

35       Celeste Fowler
36       The Geometry Center
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40Geometry Center                  June 12 1992                         bdy(1gv)
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