Hello all
G’day
How does one create faces for a complex geometry like this?
By faces I am alluding to what the six planes would be for a geometry like a cube.
Sorry I am a complete newbie. But glad to be here!
In the end I am hoping to have 2 faces - one at each end with all the dendrites included.
Hello,
A face is “Part of a plane (in 2D geometry) or a surface (in 3D geometry) bounded by a closed wire”.
In your geometry (imported from a stl file apparently), each triangle is a face.
So you have hundreds or thousands faces.
You can use “What is” feature to see the number of faces.
So I don’t understand what you mean when you say that you want to have 2 faces?
Thanks for stopping by.
I will clarity a little bit:
My overall objective is to import the resulting STL into another FEM software (called Elmer) and perform magnetic/electrical experiments on it. The basic idea is to treat this object (a brain neuron) like a wire such that I apply voltage at one end and ground it at the other, akin to an electrical wire.
This a view in another software -
Just like a wire, I am hoping that the selected portion on the left can act as one consolidated whole (which Elmer calls ‘boundary’). Then another similar set on the right can be consolidated. And, finally, the voltage & grounding can occur.
I wonder if there’s a way to consolidate all these triangles into one big face??
PS. I believe what I need is what Salome calls a Face group
yes I think what you need is to create groups of faces.
You can use filters to select the triangle you need (see documentation).
Then you can export groups to STL and import them in your FEM software.
Thanks for all the advice so far. I succeeded but there’s a small hiccup…
The face groups are imported into ElmerGUI as a body.
I know the distinction might not be clear to Salome users, so here’s a try: taking a dummy example of a cylinder, Elmer treats bodies to be composed of boudaries. For e.g.
Back in Salome, now with another simple example - a cube - after selecting a group of mesh trinangles in Salome as a facegroup, they form a body.
The main issue is this: boundary conditions (like voltage, ground) are applied to boundaries, not bodies. Properties that apply to Bodies are different (e.g. material properties).
So, back to square one.
Any advice?
