Hi, Has anyone studied the possibility to produce more detailed simple model than BoundingBox or MinimalBoundingBox? I wonder if there’s a way to find the closest points in 3d point array with parametric tolerance / point distance to find outer limits of simplified 3d shape? If you use ReduceMesh,…

There is already a mathematical definition of what is a minimal bounding-box called the Principal Component Analysis. I implemented this in OpenNest. Yes it depends on points, but depending on geometry i.e. meshes there is one to one correspondence since mesh is a pointcloud with graph data. For sm…

I mean to create a solid 3D model of virtual point cloud with parametric tolerance or resolution so that it’s not just a box, but presents the original 3D form more accurately.

You mean this? All depends on a data-set you are using. I.e. Poisson Surface Reconstruction, Ball Pivoting, Alpha Shape3D [image]

Yes, it looks more like what I meant. So, if I create a virtual point cloud using 3d array of points to find MeshClosestPoint for every point in the array, I could draw the shape with CMP from python/rhinoscript when plugin installed?

Is there a documentation for CMP command, if I use it in pythonscript directly?

This is Rhino Plugin. Probably there is a way to call RhinoCommands. [image] Cockroach Cockroach is a tool for PointCloud processing. Authors: Petras Vestartas, Andrea Settimi. Also I am doing a Cockroach Grasshopper plugin, so ideally you could call method in .N…

[2021-02-10_23h37_30] [2021-02-10_23h36_34] So now I get just a block version of the original 3d shape, but it’s too “blocky” :slight_smile: If CMP command would take the virtual point cloud made with MeshClosestPoint it would look much better. But could it use just points in an 3d array or does i…

I think you better do smth to this since you already have 3d models: You can do similar to what Piker was doing using mesh closest point or his shrink wrap meshing [image] Extracting only the outer & visible surfaces of a complex model Rhino for Windows Do you think it w…

That’s a cool method too, and useful for many cases I can think of. Shrink wrap was the first idea to approach this problem, but I think the mesh closest point method would be more what I need at this point and would be faster than iterative solution like shrink wrap. But I will take a closer look a…

But if the CMP command takes the actual point cloud as an input, could it be used after making an actual point cloud at first? [image] Process list of point3d and create pointcloud object Grasshopper Hi All, I have recently started python in Gh and got stuck. I have a pro…

MeshClosestPoint - Minimal 3d shape with tolerance - Virtual point cloud of 3d shape

Scripting

gdlfactory (Gdlfactory) February 10, 2021, 9:54pm 11

But if the CMP command takes the actual point cloud as an input, could it be used after making an actual point cloud at first?

And select the point cloud temporarily created and make it a 3d model?

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MeshClosestPoint - Minimal 3d shape with tolerance - Virtual point cloud of 3d shape

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