bdy man page on IRIX

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     bdy(3)	      Geometry Center (June 15, 1992)		bdy(3)

     NAME
	  bdy - boundary curve finder

     SYNOPSIS
	  #include "bdy.h"

	  Geom *Bdy(Geom *, float prec);

     DESCRIPTION
	  Bdy() is a function which takes a geom as its argument.  The
	  geom is then converted to a polylist, which is compressed
	  (See plconsol(3). Bdy() then counts the number of edges in
	  the polylist used once and only once, and returns a vector
	  object containing these edges.  The precision, prec, is used
	  to determine the maximum distance between vertices which may
	  be considered identical.  If the vertices must have
	  identical coordinates, this value should be set to 0.0.  It
	  is generally desirable to set the value somewhat higher to
	  allow for round-off error.

	  The vector object is always black.

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

     LINKING
	  Bdy() is part of the geomutil library; see geomutil(3) for
	  information on how to link your program with this library.

     SEE ALSO
	  bdy(1), geomview(1), anytopl(3), geomutil(3)

     AUTHOR
	  Celeste Fowler			  email:  fowler@geom.umn.edu
	  The Geometry Center			  phone:  (612) 626-8304
	  1300 South Second Street
	  Minneapolis, MN  55454

     Page 1					    (printed 12/22/98)

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