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I have the definition of a surface made up of triangles, in this case closed polygons.

I want to be able to create an accurate surface that maintains the definition of the polygons, but also interpolates between them, as sketched in red on the attached image.

The Triangulator does a good job of maintaining the polygon definitions, but doesn't fill the gaps.

The Surface Modeller does fill the gaps, but the result in greatly distorted.

 

Any ideas?

You might be looking for the TinGenerator.

Thanks.

I've had a look at the tin generator, but I find its creating a lot of additional geometry which is distorting the surface. To achieve an accurate surface, it would need to the existing triangles and interpolate missing gaps. Below are a few results.

Original Triangles

Original TrianglesPoints Only

TinGenerator-pointsPoints and Breaklines

TinGenerator-breaklines&pointsBreaklines only

TinGenerator-breaklines

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