The typical failure I have experienced occurs when the split lines up exactly over a mesh vertex. It seems like rhino cant decide what to do and fails as a result. Often moving the mesh or the split line slightly solves the issue however this is not always an acceptable work-around. Sometimes the cut needs to be exactly there or sometimes the mesh is so dense that a collision is inevitable. For specific examples see:
Please try splitting the green mesh with the black mesh box. It will fail without further notice.
I think this is a bug.
MeshSplit.3dm (6.9 MB)
Hello,
I need to work a lot with meshes from 3DScanners and found what I believe to be a serious bug in the ProjectCurveToMesh rhinoscriptsyntax function.
[image]
Here, trying to project a curve (a simple line below the XY-plane in the Z+ direction) onto a simple grid mesh with a U-shaped hole gives NO curves at all if the projected line coincides with non-border mesh triangle edges… You will find this test mesh MeshToSplit1.stl (35.4 KB) along with the simple test script producing this err…
Hi,
I am having some trouble accurately splitting/trimming the mesh in this file.
MeshSplit Error.3dm (140.3 KB)
The result does not follow the polyline at the corner, almost creating a fillet at this point. I need a corner here!
Additionally, projecting the polyline to the mesh follows this contour created by MeshSplit however placing a point at this corner and projecting it to the mesh gives an accurate result.
Does anyone know of a workaround for this?
Thanks
I am having a hard time understanding why a curve mesh intersection reuturns so many intersections.
I have curves drawn from a point to the vertices and the CurveMeshIntersection seems to return an intersection for each face, regardless of this being the same point. (If four mesh faces meet in one point, then CurveMeshIntersection returns four intersections, but I only want it to return one).
Can this be one of the reason for why SplitMesh is so buggy too? If I try to split a large mesh with a…
Can you take a look and see if you can find a way to solve triming/splitting meshes like this?
[image]MeshTrim MeshSplit.3dm (175.2 KB)
For Rhino to fail trimming or splitting dense meshes are “normal” but the mesh is generated from Grasshopper and should be just fine. Neither V5 or V6 manages to either split or trim it.
There are others but that is what a quick search of the forum turned up.
This error can also flow through to the mesh Boolean functions and cause them to fail as well.