Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.
First time visiting? Here are some places to start:- Looking for a certain topic? Check out the categories filter or use Search (upper right).
- Need support? Ask a question to our Community Support category.
- Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
- Be respectful, on topic and if you see a problem, Flag it.
If you would like to contact our Community Manager personally, feel free to send a private message or an email.
Search
-
Re: BSplineCurve questions
@Jacob_Corder Thanks! I tried very carefully again, and n - degree + 1 worked (it padded the knots as advertised). I guess I must of counted wrong or something. I tried this. It works as you suggested. It does make it easier to write with certain ratios. With both of these hints I was able to go from: [0, 0, 0, 0, 0, 0, 0,… -
BSplineCurve questions
I noticed some things that seem to be inconsistent or incomplete in the documentation for BSplineCurve. * "For non-periodic curves with n control points, you may provide the full set of n + degree + 1 knots, or you may provide n - degree + 1 knots, and multiplicity will by padded onto the ends (which has the effect of… -
Re: BSplineCurve questions
Even sketch based b spline curves are dimension 3. Dimension 2, as far as I have seen, are for bSplineSurface boundary B spline curves and internal loops which are just a series of u v parameters from what I understand. 2D b spline curves just always have the points on a common plane. So opCreateBSplineCurve requires G1… -
Re: BSplineCurve questions
@Jacob_Corder Yes. Some of this makes sense. Thanks. "2 g0 curves would create a vertex but not have one" - I guess this is similar to the fact that Onshape (and other CAD systems) will not let you create cusps in the middle of a sketch spline or Bézier. I'm currently working on combining several Béziers into one B-Spline…
4 results