Bezier surface to CAD program

Question

Alon Spinner 2019-4-8

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https://ww2.mathworks.cn/matlabcentral/answers/455120-bezier-surface-to-cad-program

回答： Unai San Miguel 2019-6-18

Hi all,

I would very much like to export a Bezier surface which I had created in MATLAB to a CAD program, preffirabily Solidworks.

Looking around, it seems to me that this task is not as trivial as one would suspect. I was looking into IGES format which seems to work with B-Splines rather than Bezier.

The Bezier surface is currently of degree mxn, but I can limit it to bi-cubic if the solution demands.

I would very much appreicaite guidance on this issue.

The project I am working on aims to help create prosthetics from scanned limbs.

Thanks,

Alon

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Answer 1

Unai San Miguel 2019-6-18

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https://ww2.mathworks.cn/matlabcentral/answers/455120-bezier-surface-to-cad-program#answer_379683

With the Nurbs2IGES toolbox found in MATLAB File Exchange https://www.mathworks.com/matlabcentral/fileexchange/12087-nurbs2iges

there are functions provided to export your surface to IGES. I don't think that you will need to change the order or the degree of the surface, and remember that a Bezier surface is a B-spline surface with knot vectors [0,...0,1,...,1] in the two parametric directions.