Hi everyone, I am looking for a faster solution to get points inside breps. Right now it takes a look to detect which one are or not inside. [image] I tried converting the breps into meshes to use the mesh inclusion command, althoguh the number of points detected are not the same :frowning: I a…

probably Mr. @PeterFotiadis could optimize it more… :grimacing: [SharedScreenshot] Point in breps v2.gh (303.6 KB)

Any particular reason for duplicating the points and using data trees in the Point in Breps component inputs? If you use lists, the i (lowercase) output already contains the index of the first Brep containing the point (or -1 if none): [image]

[image] B. Balbastre: breps into meshes Indeed that’s a way to speed things … but Mesh Inclusion works when it works (Karma a must). In C# Get the Box (rotated or not).out of the Mesh (prior all check if is Closed). Define Box Corners thus the xyz Vectors (say vx, vy, vz); Define origin (c…

Looks like there is something funny in branching of the original data. I flattened both the points and the curves and cut time in by about the same amount as @ale2x72 [PointinBreps] I have worked with some large point clouds in rhino (I would qualify 45k as large personally) and find that working…

Thank you for your answers @ale2x72 and @eliwilliams1337 . Just as a clarification, I was using trees since my goal was to create as an output a data structure like this: {0} Points inside of brep in the branch {0} {1} Points inside of brep in the branch {1} … I am not sure if with flattening th…

[image] B. Balbastre: I have non rectangular volumes. That’s why you test for inclusion (step 5 as above). The Box is used to define Vectors then a Random value applied as amplitude then they are added (the 3 of them) to the origin Pt. Like: Point3d[ ] bp = box.GetCorners(); Vector3d xV =…

@ale2x72 thanks for the help, that is what I was looking for although the computational time seems to be still quite high. @ThomasE The speed of the component you did is awesome! I just found a small problem. If we compare the solution using the Point inside brep command and the solution you did, t…

change this line if(mesh.IsPointInside(pt, 0.001, true))

@ThomasE I tried to modify the tolerance but nothing happens. It seems it is a bug in the Mesh Inclusion component due to having too many decimals. I forced the points to have 6 decimals and it worked :slight_smile: I found in this post the problem I am experiencing: Mesh Inclusion Error - Grassho…

[image] B. Balbastre: share Get an entry level take on that matter. Accepts GeometryBase Types (Breps/Meshes). If the object is Brep is converted to a Mesh (If the Mesh is not closed [i.e. the RC Method failed] is skipped - same with Brep). Notice the prop(ortional) user option. Play with th…

Point inside Brep c# component

Grasshopper

ale2x72 (Alessio Erioli) May 31, 2024, 9:42pm 6

Ah, ok, in that case, you can search for the point indexes contained in each Brep using Member Index like so:

Point in breps.gh (314.6 KB)

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Point inside Brep c# component

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