Hello! I have a .txt file with the xy coordinates of the border of my mesh. I tried the trinagulate() command, but I get the error “Assertion fail : (area > 0)”. I tried reducing the number of point and got another error “Sorry Error build delaunay triangle error = 20”. My code is only this, sin…

I did not check the program, but the problem might be related to the fact that yo only specify meshpoints at the border of the boundary. triangulate I think only creates a mesh from the points it is given, it does not generate any other points.Try adding some point into the computational domain.

Thank you both for the answers. I actually found a way to solve this issue. Just in case someone is facing the same problem, I post the solution: real[int] xx = [5.545749208, 5.555235309, 5.598323071, 5.706891616, 5.869999175, 6.022334794, 6.109456502, 6.218388964, 6.349107918, 6.338044844, 6.29425…

Hello, I have a question related to this topic. If I have a set of points (over the whole domain, not only the boundary) and a set of triangles (each of them defined by 3 indexes of points ordered counter-clockwise), is there a way to create the asociated mesh in FreeFEM? I supose that I can read …

Create a mesh from xy coordinates

General Discussion

julienG (Julien) October 12, 2022, 3:56pm 3

Yes. I think what you are looking for is in this post

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Create a mesh from xy coordinates

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