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NAME
     bdy - boundary curve finder

SYNOPSIS
     bdy [precision]

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

     The vector object is always black.

BUGS
     The vector object is not a particularly compact  representa-
     tion  of  itself,  since  it contains many 2-vertex segments
     which could be combined.

SEE ALSO
     geomview(1), anytooff(1), anytopl(3), bdy(3),  offconsol(1),
     plconsol(3)

AUTHOR
     Celeste Fowler                email:    [email protected]
     The Geometry Center

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