Hello
Why these meshes have different welding result?
weld problem.gh (16.6 KB)
It seems to be a tolerance problem. After trying to invert the order of faces/vertices.both so your two examples match perfectly, I ended up rounding the coordinates of the vertices to 0.01, and the weld component worked.
You can use Align Vertices component to avoid rebuilding the mesh.
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These components surely doesn’t use a tolerance, they surely use something like a hashset. So if points are exactly the same they are glued.
Here the example
First example 4 points differents
Second example 5 points differents
private void RunScript(List<Point3d> pts, ref object A)
{
HashSet<Point3d> h = new HashSet<Point3d>();
foreach (Point3d pt in pts)
{
h.Add(pt);
}
A = h.ToList();
}
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I already tried Align Vertices but didn’t work, and there no input for tolerance as @laurent_delrieu mentioned
Can you show your result?
In Blender we can collapse duplicated vertices but i don’t find an option like that in Grasshopper.
There are some component that uses tolerance.There is one from Petras in Ngon I think or Cockroach.
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Thank you @magicteddy
Align vertices solve the problem
