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#1 |
Member
Join Date: Mar 2018
Posts: 56
Rep Power: 8 ![]() |
hello, Ansa users.
i have question. if i mesh my body by polihedral mesh and try to use tool edge to curve i couldn't do it. how can i fix it? is it possible? i want to take edges from polihedral elements and convert these to curves. thanks a lot. |
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#2 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
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You should try
Perimeters>Feat2Curve |
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#3 |
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#4 |
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it works.
but i want to do perimeters to curve inside volume too. do you know how to do it?=) |
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#5 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
Rep Power: 21 ![]() |
There is an option
Draw Interior of Solid Mesh in F11 window in Presentation Parameters but this does not apply to polyhedral mesh unfortunately.... Why do you want to create 3D curves out of the poly elements? |
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#6 |
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i want to create beams on polihedral edges and delete polihedrals.=)
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#7 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
Rep Power: 21 ![]() |
I see you want to create a foamy structure lets say.
How many polyhedra cells do you have? If each poly is in a different PID then you can create Curves from their edges. If the elements are many you will need to write a python script to assign new PID to each cell |
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#8 |
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i see.
thanks a lot. it's for my friend. |
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#9 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
Rep Power: 21 ![]() |
Just a note
The workaround I suggested does not seem to work unfortunately. Even if you can then see the internal edges the function Feat2Curve cannot select them so you cannot creare 3D curves.... The right workaround is the following When you have your poly mesh ready use the function Mesh>Elements>VoltoShell [Interior] This will create interior shell elements of all the internal poly facets Then you can use Perimeters>Feat2Curve as you will be able to select the internal edges Hope this works for you |
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#10 |
Member
Join Date: Mar 2018
Posts: 56
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wow!
but skin volume_to_shell (area) doesn't work with polihedral. i have tried it many times. hexa/piramid/tetra work easy, but polihedral doen't work unfortunately=( |
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#11 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
Rep Power: 21 ![]() |
The VolShell [Interior] should be applied with box selection to all interior facets.
You do not have to use area selection for VolShell Interior. You already have shell elements on the outside skin of the volume. |
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#12 |
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it works!
thanks a lot! |
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#13 |
Senior Member
Vangelis Skaperdas
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 287
Rep Power: 21 ![]() |
you are welcome
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