bdy - boundary curve finder
Geom *Bdy(Geom *, float prec);
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.
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
Bdy() is part of the geomutil library; see geomutil(3) for information on how to
link your program with this library.
bdy(1), geomview(1), anytopl(3), geomutil(3)
The Geometry Center