hi everyone
? have polygons and point cloud. ? use Clipper
after that ? change point cloud z data
? need this math fonction (( all point cloud z value - polygon z value))
can you help me please
rsvp.
Question
how can ? change point cloud coordinate value in fme
Hi @veyselakatay, supposing all vertices of the polygon have an idential z-value, a possible way is:
- Extract Z of the polygon (clipper) with the ElevationExtractor.
- Merge the Z to the point cloud (clipee) when clipping.
- Move the point cloud with the Offsetter (set -Z to the Z Offset parameter).
Hi @veyselakatay,
The PointCloudExpressionEvaluator may also be worth investigating in your case. You can set the Component to 'z', Data Type to 'preserve' and the expression to be '@Component(z) - <polygon z value>'
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