Comments on: Parametric modeling and meshing

By: Thomas Paviot

Thomas Paviot — Wed, 05 Jan 2011 05:14:05 +0000

@Luigi: thanks for your support. There is indeed a bspline example located in the /examples/src/Level1/geometry_demos.py script. Have fun!

By: Luigi Giaccari

Luigi Giaccari — Tue, 04 Jan 2011 20:05:53 +0000

I got it in the samples which previously I didn’t know:
BB = GeomConvert_CompBezierSurfacesToBSplineSurface(bezierarray)
if BB.IsDone():
poles = BB.Poles().GetObject().Array2()
uknots = BB.UKnots().GetObject().Array1()
vknots = BB.VKnots().GetObject().Array1()
umult = BB.UMultiplicities().GetObject().Array1()
vmult = BB.VMultiplicities().GetObject().Array1()
udeg = BB.UDegree()
vdeg = BB.VDegree()

BSPLSURF = Geom_BSplineSurface( poles, uknots, vknots, umult, vmult, udeg, vdeg, 0, 0 )
BSPLSURF.Translate(gp_Vec(0,0,2))
Thanks

By: Luigi Giaccari

Luigi Giaccari — Tue, 04 Jan 2011 15:27:09 +0000

Hi,

First of all thanks for this wonderful package. I almost cried when I saw it

I am trying to find some code fragment on how to create bsplines in 2D and 3D space. I am a very beginner and it would help me a lot.

An example like:

these are control points
these are knots
this is the degree

….and this is the bspline!

Thanks for everything

Luigi