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Question

Interpolate Z value on a 3D polyline

  • November 28, 2019
  • 2 replies
  • 74 views
roberto
Contributor
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Hello,

I'm here with a problem that I saw elaborated in other posts. I tried to apply some hints from there but unsuccessfully. The problem I'm facing is to assign Z values to geometries vertexes, taking them from other close ones, interpolating the values considering the distance (measure).

I tried with MeasureOrZvalueInterpolator but, sure because of wrong understanding of the transformer, without any results. Is this a problem to solve only coding?

Any idea, hints or already implemented examples?

TIA

2 replies

bwn
Evangelist
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  • bwnEvangelist
  • Evangelist
  • November 28, 2019

Would it be accurate enough to create a Surface from the points that have the Z values you are trying to interpolate from and then Drape the features with the vertices across this? In Vertex Mode, SurfaceModellor will set the draped vertex Z values from the resulting triangulation, which is effectively a 3D interpolation operation I would guess?

roberto
Contributor
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  • robertoContributor
  • Author
  • Contributor
  • November 28, 2019

Thanks. I'll give a try. But considering the polyline close to a linear object, I think the surface could be not consistent.

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