Is there a way to reduce topography tin to more coarse grid?

SketchUp
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1

I have a very detailed tin of an existing topography, very fine grid. I don’t need it to be so detailed and would like to reduce it to more coarse grid to reduce file size. Is this possible in SU?

1602×774 501 KB

2

Likely with an extension.

The SketchUp Team has an extension:
Simplify Contours Tool

Also, the Sandbox Tools extension comes installed with SketchUp.

Extension | SketchUp Extension Warehouse says:

The Sandbox Tools extension implements the concept of a sandbox which refers to a surface that can be generated and manipulated using sandbox tools. A sandbox in SketchUp (and in other 3D modeling tools) is commonly referred to as a triangulated irregular network or TIN in terrain Modeling terminology.

Switch on it’s toolbar via, menu: View > Toolbars… dialog. Dock it where you will. Open the Instructor window to see tool help.

Refer to the online User Guide chapter: Modeling Terrain and Other Rounded Shapes

Search Extension Warehouse for other extensions, “mesh” or “terrain” etc.

http://extensions.sketchup.com/en/search/site/mesh
http://extensions.sketchup.com/en/search/site/terrain

… etc, …

3

I would try to reduce the topography in an external program (Meshlab e.g.) before the SketchUp import…