I'm using the TINGenerator-transformer to calculate slope and aspect for triangles. This works most of the time, but I sometimes get the following error:
Surface Model cannot be constructed. Either all points are linear or initial set of points did not consist of 3 non NAN elevations.
I've attached a workbench which creates such a geometry. The points are not linear nor do they consist of NAN elevations...
If there is a better way to calculate slope and aspect for geometries, then I would of course be more than happy to use that approach instead...