Associate 2D mesh with surface

mvass

Hello.

 

Maybe a trivial question here, but when a 2D mesh is created on a surface and for some reason a translation of both the surface and the mesh is performed, the association between them is lost (naturally) and then the process of selecting elements or nodes on that particular surface becomes laborious. As far as I know, one can go to Geometry-->Node edit and then select 'Associate' to fix this, but only one surface, one line etc. can be selected, making the process hard, or impossible when large meshes have to be processed. Any ideas on how to perform the association faster?

 

Thank you.  

Rahul Rajan_21763

To my knowledge Automesh panel creates mesh on selected surface & ensures connectivity of mesh with surface.Meshing on planar area will not have any issue of node to surface connectivity.

mvass

Hi Rahul,

 

my question is not on automesh panel. I was referring to an already meshed surface using the automesh option, where the mesh has to be translated (for some reason) say on the y axis. If you translate the associated surface on the same axis and the same distance the two entities (mesh, surface) are not related to each other anymore (as expected). How do you re-associate them quickly and accurately?

 

Rahul Rajan_21763

I think this option is meant for local region where you have slight movement of nodes from surface.If you want movement or changes to me made on entire geometry then try Hypermesh morphing techniques.

tinh

Altair Forum User said:

Hi Rahul,

 

my question is not on automesh panel. I was referring to an already meshed surface using the automesh option, where the mesh has to be translated (for some reason) say on the y axis. If you translate the associated surface on the same axis and the same distance the two entities (mesh, surface) are not related to each other anymore (as expected). How do you re-associate them quickly and accurately?

 

 

 

Understanding you because I faced it many times.

I have script to do that.

In a simple case, you can F11 toggle all green lines, your cad will become 1 surf and you can associate nodes in one click

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mvass

Yeap, I am aware of the morphing techniques and this can solve the problem, but I was looking for something outside the morphing options.

 

@ tinh:  Good suggestion there mate! Thank you. 

Altair Forum User

@tinh can you share your script? It is currently very tedious to re-associate nodes to geometry. A script/function that allows selection of multiple surfaces/lines at once in the node edit panel would solve the issue.

tinh

You can toggle all lines and associate all nodes in one click

another way, make a solid from the surfs so you can associate nodes to the solid, no need to select surf by surf.

my script is for internal using and not suitable with other works, it links to many private functions and procs

Burner2k

I think one can associate nodes (& thus mesh/elements) to existing surfaces/solids. IIRC, in Nodes Edit Panel, there is an associate command/radio button. I won't be able to post the screen shot of it until tomorrow around same time.