Correcting Corrupt TIN

Some imported LandXML files contain corrupted TIN structures with unreported holes. This can cause issues when calculating f.ex. a road model or similar.

To fix this:

1. Make a Ground Surface task.
2. Select the LandXML terrain surface as input
3. Go to task Settings > TIN priority. CHECK OFF “Keep TIN structure”.
4. Go to task Settings > TIN breaklines. CHECK ON “Use TIN edges from surface geometry as breakline. (Will increase calculation time)”
5. Save the setting changes.
6. Finish the task

With these settings the retriangulation will break up the TIN to only points and retriangulate the points. This could cause the triangulation to look different than the LandXML input file. Because of this we have also set the task to use the TIN edges found in the input as breaklines. As an effect the Ground Surface task should produce identical TIN structure to the input, as long as non of the data from the input are overlapping.