I have made a mesh, now I want to split a part of it with a customizable form, which is the best way to do this?
I have tried to make a curve and extrude it for cut a part of the mesh, but i didnt have a good solution.
Could you share this 3dm or gh document ?
I did not find the blue curve in your attachment, could you try to update it ? Thanks.
i dont did it because idk which is the best option to do it, but it should be something like that
You aslo can give it a try with SnapToMeshObject, fyi,
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Thanks!!! But for example if I want to cut 180º, with extrude is not a good solution no? or to cut some points in the curves of the mesh, no at the center.
Pull the curve to mesh, then creating a splitting surface based on the pulled curves.
Try to create closed curve, and create a surface based the curve, then use the surface to split the mesh.
maybe i am missing something, but extruding a rectangular curve that i drew orthogonally from the front view followed by MeshBooleanSplit worked.
splitting it exactly at the polygon faces of the mesh might not be a good approach, and also why would you want do to that? it might make sense if the outer surface would be an offset of the inner surface with coinciding vertices, but here the inner part has a complete different mesh topography.
split.3dm (1.0 MB)
but i mean that if you do the rectangle wider until the extremes of the contour, it seems impossible
you can still make it bigger, but you can not make it bigger than the given geometry permits, there is nothing you can do about that, any much wider and you are outside of the surface already.
generally you have little leeway due to the inner surface, at the example underneath which is just a little bigger than what i showed in my first example you will not even manage to cut right through because you are scraping along the inner walls on both sides at least not with an orthogonal cut.
maybe you should share what you are trying to do, if it does not matter if the cut it orthogonal or normal to the surface which is a huge difference i wonder what you need?
if you would like an approach where you cut perpendicular through the walls (kind of normal to the mesh orientation) you could help yourself with making a quadrilateral that you draw along the mesh normals (i assume that should suffice at least) extrude the curve and use cap to close it.
Pls provide the 3dm or gh file with splitting curve.