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RasterDEMGenerator Issue

  • June 22, 2022
  • 3 replies
  • 36 views

od10
Contributor
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  • Contributor
  • 11 replies

Hello,

 

Please can someone help me with this very strange issue i have encountered with the RasterDEMGenerator transformer.

 

I have uploaded some sample data and the sample workbench. The input features have 40 vertices to pass through to the RasterDEMGenerator but it fails each time, whereas when i add in another transformer - PointCloudCombiner before the RasterDEMGenerator it works fine.

 

I need to get to the bottom of this issue as i cannot use the PointCloudCombiner transformer.

 

Many thanks

 

@Mark Stoakes​ @Takashi Iijima​ @danatsafe​ 

3 replies

nielsgerrits
VIP
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  • 2938 replies
  • June 22, 2022

I have not checked your data yet, but what is the grid distance of the vertices and what is the cell size in the RasterDEMGenerator?


od10
Contributor
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  • Author
  • Contributor
  • 11 replies
  • June 22, 2022

The vertices are spaced every 10m or so, and the cell size is set to 2m so this shouldnt be the issue


nielsgerrits
VIP
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  • 2938 replies
  • June 22, 2022

The coordinates in your dataset have 9 decimals, which is extremely small in meters. Rounding the coordinates to mm (3 decimals) got it working for me.

 

As an alternative, changing the Surface Tolerance from 0 to something really small worked as well.