How to load and view .nrb files?

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Zichun
Zichun 2011-4-28
回答： Jacob Mathew 2024-11-21，10:15
Hi,
Now I have some files, which are NURBS definitions in text file with the extension .nrb, could anyone tell me how to load and view this format file?
Format as follows:
surface
0
50 :M
53 :N
U Knot Vector
0.000000
0.000000
0.000000
0.000000
0.020000
0.040000
0.060000
0.080000
0.100000
0.120000
0.140000
0.160000
0.180000
0.200000
0.220000
0.240000
0.260000
0.280000
0.300000
0.320000
0.340000
0.360000
0.380000
0.400000
V Knot Vector
0.000000
0.000000
0.000000
0.000000
0.021277
0.042553
0.063830
0.085106
0.106383
0.127660
0.148936
0.170213
0.191489
0.212766
0.234043
0.255319
0.276596
0.297872
0.319149
0.340426
0.361702
0.382979
0.404255
0.425532
0.446809
0.468085
Control Points
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
0.625122 1.221069 409.302094
......
Thanks for any help!

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回答（1 个）

Jacob Mathew
Jacob Mathew 2024-11-21，10:15
Hey Zichun,
You can checkout the NURBS Toolbox by D.M. Spink from the Add On explorer :
https://www.mathworks.com/matlabcentral/fileexchange/26390-nurbs-toolbox-by-d-m-spink

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