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Question

Detect Topological errors


geouser97
Contributor
Forum|alt.badge.img+1

I have a dataset of curves (lines) automatically generated from the DTM. I have some topological issues that I want to detect automatically ( photo). I used the geometryvalidator transformer, but I can't seem to detect them. How should I proceed? Thank you for your help

3 replies

topf
Forum|alt.badge.img+1
  • November 22, 2023

You may want to add some details as to what settings in the geometryvalidator you have used. Is the topological issue self-interesctions of the lines in center of your screenshot?


geouser97
Contributor
Forum|alt.badge.img+1
  • Author
  • Contributor
  • November 23, 2023

I chose all the types of anomalies to detect

 


geomancer
Evangelist
Forum|alt.badge.img+48
  • Evangelist
  • November 24, 2023

You show the results in another program. This means the curves have been converted to the format of that program. Conversion of curves can give all kinds of unexpected problems, as curves are defined differently in different programs.

How do the curves look in the FME Data Inspector?


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