#Convert mesh to geometry meshlab code

Boundary code box is the future number/code of the patch/boundary. Since my edges are not sharp (?) I can use Feature angle 45 deg. First point the cursor on the chosen surface (inlet) press P and press S. we will set several boundary codes to all of surfaces (my pipe case has three).In status bar you can find info about selected cell, on the end of line, there is also code= of the cell. A red dot and a box over a domain will appear. when you point mouse cursor on a surface and press P, you will choose the cell under the cursor.Now all of them are in one boundary - code 999. I have a pipe with inlet, outlet and wall surface. You can switch on or off visibility of boundary. You probably have all surfaces in one boundary code. Press V to see boundary codes (like layers in CAD apps). enGrid has nice keyboard shortcuts (could have more).It is the identification of surface for meshing or setting the name or switching visibility. Each patch/region/face should have 'a number'-boundary code. if you are not very familiar with enGrid you have imported surface as one boundary code.import STL you created before: menu > Import >STL.

So that is the point.ĮnGrid part (dividing mesh into several regions / patches) I have a problem with enGrid to open ascii STL. 1.3beta) later, it is necessary the STL to be saved in binary format.

You will do it by selecting Mesh in Tree view and menu > Meshes > Export mesh where you choose Binary STL and save the mesh. FreeCAD can export both binary and ascii STL. This will mesh your surface with basic triangualtion only. select Fusion in Tree view and apply: menu > Meshes > Create mesh from geometry.edge lenght not to deform your domain significantly) on Fusion you have made. apply: menu > Meshes > create mesh form shape (test the parameter max.After making a model consisting of several parts I use boolean operations to make one fusion of them all.Ĭhoose one to create mesh of the surface:

#Convert mesh to geometry meshlab how to

(maybe there is a way, how to name faces of the model and export them to asciiSTL too, but I do not know nowadays). Solution combines using Freecad + enGrid.įreeCAD part of solution (how to export model to STL) Maybe it will be useful to kind of beginner like me. I found the way, I would like to share how to do this. My problem is to start this tutorial, since I do not have asciiSTL of my geometry. Beginners how to convert binarySTL to asciiSTL with regions (good for SHM tutorial) - CFD Online Discussion Forums