[Plugin][$] TopoShaper - v2.7b - 30 Jan 26
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Hey, Fredo, a little theoretical question about terrain generation from point cloud:
What was the mathematical foundation for the terrain mesh upsampling / interpolation algorithm? I mean the tool which increases the mesh density and smooths it, preserving the exact positions of input vertices, as we add iterations. Was it the butterfly subdivision algorithm? Have you used any specific paper to create this tool, or did you come up with the meshing algorithm yourself? I'm asking because I'm looking for something similar for Blender. I know, however, that butterfly subdivision is available in MeshLab, and it does more-less what Topo Shaper does. Besides that, I'm really just curious. -
It's home made. I wrote it long time ago, but I remember that for the interpolation, I did not find anything suitable and usable for my level of math in the literature.
For the upsampling of the triangulation, I remember that I tried the Steiner refinement approach, but it did not work well for what I wanted to do. So, I built my own method.
I was not familiar with the butterfly subdivision algorithm and still am not. Maybe it is a more conventional approach.
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Hi, can you tell me whether we can use toposhaper for a terrain that uses both contours and cloud points (spot levels) together?
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No. At the moment, it is isocontours OR cloud points. You can simulate a few cloud points by small circular contours.
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Thanks Fredo6
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@fredo6 It's a late reply from me, but thanks for the explanation. I'm honestly impressed you built the algorithm from scratch!
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NEW RELEASE: TopoShaper v2.7b - 30 Jan 26
Requirements:
- LibFredo6 v14.3b
- Sketchucation Plugintore v5.0.5
TopoShaper 2.7b is a maintenance release for
- Repackaging of rbz
Home Page of TopoShaper for information and Download.
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I update Toposhaper and now it doesn't work..... what happened?
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I update Toposhaper and now it doesn't work..... what happened?
Is your libfredo up todate too?
Please run the Window > Libfredo Settings > Fredo6 Plugins Information for Sketchucation Support menu command in SketchUp and copy/paste the output into your reply.
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I wanted you to know that the latest Toposhaper version does not work on the new Mac OS version of Sketchup 26.2.242. I upgraded my sketchup and now Toposhaper does not work. I have another workstation with Sketchup version 26.1.257 and your version of Toposhaper still works.
John McGahey, AIA
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Can you indicate which Mac you have (Intel or ARM) and run the Window > Libfredo Settings > Fredo6 Plugins Information for Sketchucation Support menu command in SketchUp, as well as describe what does not work. Do you see the menu and toolbar, do you get error messages.
I would also suggest that you open the Ruby console and leave it open when you close Sketchup. When you restart Sketchup, the console will open and show possible error messages.
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