Curvature and normal on hex mesh #34

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1. alecjacobson commented on Apr 20, 2020

   

   alecjacobson

   on Apr 20, 2020 via email

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   Not currently. The closest you could do is convert the hex/quad mesh into a triangle mesh, compute curvatures there and then map them back.

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   On Mon, Apr 20, 2020 at 10:37 AM Saman Seifi ***@***.***> wrote: I don't know if it is the right place. Is libigl capable of calculating curvatures and normal vectors on a hex mesh which means rectangular elements on surface. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#34>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AARDJGOZSR5HBAD4FNMPTFDRNRM3XANCNFSM4MMP2KLA> .
2. samanseifi commented on Apr 20, 2020

   

   samanseifi

   on Apr 20, 2020

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   This might be good enough for now. Anywhere I can see how it can be done? Tutorial maybe?

   And it can be done in 2D mesh as well right?
3. alecjacobson commented on Apr 20, 2020

   

   alecjacobson

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   https://libigl.github.io/tutorial/#curvature-directions

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   On Mon, Apr 20, 2020 at 2:18 PM Saman Seifi ***@***.***> wrote: This might be good enough for now. Anywhere I can see how it can be done? Tutorial maybe? And it can be done in 2D mesh as well right? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AARDJGMAFQZVEWOVKKZN6PLRNSGYZANCNFSM4MMP2KLA> .
4. samanseifi commented on Apr 20, 2020

   

   samanseifi

   on Apr 20, 2020

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   It doesn't say anything about converting hex mesh to tet. What am I missing? The quadratic fitting approach also takes V an F matrices from a triangular mesh file. libigl doesn't offer this direct translation I assume.
5. alecjacobson commented on Apr 21, 2020

   

   alecjacobson

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   Do you have a hexahedral volumetric mesh or a hexagonal surface mesh?

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   On Mon, Apr 20, 2020 at 5:23 PM Saman Seifi ***@***.***> wrote: It doesn't say anything about converting hex mesh to tet. What am I missing? The quadratic fitting approach also takes V an F matrices from a triangular mesh file. libigl doesn't offer this direct translation I assume. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AARDJGMX7NYHQYY2DUKYSETRNS4NJANCNFSM4MMP2KLA> .
6. samanseifi commented on Apr 21, 2020

   

   samanseifi

   on Apr 21, 2020

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   It's hexahedron volumetric mesh.