How can I just get the corner points in the 3D model?(PDE Toolbox)

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haoran liu
haoran liu 2020-2-12
评论： haoran liu 2020-2-13
Hi everyone!
when I use the syntax "findNodes(mesh,'region','face',18)", I get the corner points and the middle points. So How can I just get the corner points?
Any help would be appreciated.
Thanks

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Ravi Kumar
Ravi Kumar 2020-2-12
Hi Haoran,
It looks like you are interested in nodes that form the triangle element corners and not the midside nodes. Two options:
  1. You can generate a linear mesh, if you don't need quadratic accuracy.
  2. You can pick the first three of the six rows in the output.
Regards,
Ravi
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Ravi Kumar
Ravi Kumar 2020-2-13
OK, I am unlcear about your approach. I assumed you are workting with 2-D model. You are right, its the first four in 3-D.

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