Triangulate a surface similar to the "From Scratch" tool

[JClements]

I have a huge site area for which I may have to produce a surface from contours. Since it is so large, the fewest possible contours will probably used.

In certain areas, close to structures, more detail may be added. I was hoping to create a From Scratch surface (see the sandbox toolset), project the boundary edges of the focus area onto the From Scratch surface, do an intersection, and erase the surfaces/edges which lay outside the boundary. Then use the Smoove tool to do some surface shaping. However, the step where the out-of-bounds geometry is erased is a painstaking process.

I was wondering if there is a script that could create a grid from a selected surface and automatically trim of the excess; even better yet do the triangulation bit that the From Scratch tool does?

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[gata]

Soap Skin Bubble does a mesh from a contour. Turn on hidden geometry to see the triangulation.

With your intersection technique, if you softened the out-of-bound mesh from a Sandbox-made grid, then it's one face to select for deletion.

[JClements]

Gata:

" ... if you softened the out-of-bound mesh from a Sandbox-made grid, then it's one face to select for deletion."

This tip will help be out significantly!

I will have to download Soap Skin Bubble and install it on my new PC. I had forgotten all about it.

Thanks, again.
John