Hi @limo​ , have you set Yes to the Also Check Areas parameter? The GeometryValidator won't detect non-planar areas, if the parameter is set to No (default).

"Also Check Areas - If set to No, this check will output all areas through the Passed port. If set to Yes, this check will determine an area’s output port based on its planarity." -- GeometryValidator Help

Hi @Takashi Iijima​ , yes I set Yes to the Check Areas parameter! The transformer fixed 4 Objects. However the face replacer says " Invalid Geometry Typ

These 4 Objects are roof shapes:

I will do Faces out of this polygons. So how can I convert them into faces?

The roof geometry could be a MultiArea, which cannot be transformed into surface directly with FaceReplacer.

Try using GeometryRefiner which transforms MultiArea consisting of a single part area.

If the roof polygon was a MultiArea consisting of two or more parts, try this procedure:

Counter: add sequential number as temporary ID to the roof polygon,

Deaggregator: decompose them into single areas,

FaceReplacer: replace them with Faces,

Aggregator (Group By ID): aggregate them into MultiSurface.

Unfortunately this does not work either. Same mistake like before. FaceReplayer says "INVALID_GEOMETRY_TYPE"

My Shapefile is a 3D polygon with z values and stored as shapefile.

You will find it in the appendix!

A non-planar polygon will be a MultiArea after repairing with GeometryValidator, so you will have to insert the Deaggregator between GeometryValidator (Repaired port) and FaceReplacer.

Yes it works now 🙂

So it is sufficient to deaggregate only repaired polygons by the geometry validator. I was not sure about this!

All 3D polygons can be converted into faces. Thanks @Takashi Iijima​