Spline to Polyline

There are some methods of converting a Spline (NURBS) in an AutoCAD drawing
into Polyline. E.g. see a discussion at
http://www.fsalgado.com/2005/11/spline-to-polyline.html . But all proposed
methods convert a spline to a polyline with hundreds of short vectors. Not
very good for CNC, isn't it? Take look at the uitility SPLINEDXF (demo
version) at www.caddepot.com. It converts splines to polylines with arc
segments.

 

Hi

Il'l tell you another way ; you make a new layer and set that the
current, then you Divide the Spline with enough high a number ,-- for
either a vector straitline after strait line line or, to get the points
to describe a Polyline.
You see with simple Lisp ,after you "divided" the Spline ,there will be
drawn a the number of points you asked ,along the Spline, these points
will all be on the new layer and they will be made one point after the
other in the right order to just be written to an external file, to be
imported as reply to the 3Dline or the Pline function --- as easy as
that, as long as you remember to add a point at the start of the line,
as "Divide" do not place it's points at the endpoints of the Spline.

P.C.
http://home20.inet.tele.dk/h-3d/

 

The HL Curve tool has what you need. It lets you specify tolerance during
the spline to ployline conversion. Also, it can create curves using their
mathematical formulae.

try at: www.hlsolution.com

HL Support