Sorry for my bad english and thanks in advance, Marco
Hello all, I'm doing some enrichment on the cityGml automatically generated model of my city for a european proj called I-scope. At this moment I have only buildings geometries and i'm trying to texturize the model. I encountered some problems, expecially for Lod1 Building: I found the way to distinguish between flat and vertical features after a deaggregator and to rewrite the model as composed only of Lod2 buidings with separated surfaces. What I want to do now is to recognize the roofsurfaces(flat) from the ground surfaces. I tried a lot of possible transfomer but not encountered yet the way to compare the surfaces in an appropiate way. I need a way to find the max Z value between features with the same parentID an to split the output in ground and roof surfaces.
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Hi,
How about using the BoundExtractor on the surfaces?
From there you can compare the min and max-Z between different surfaces with the same parentId.
/Tim
Fantastic, that's what i'm looking for...
Now I don't know wich transformer have to use to comare different features using the "group by" field. Expression evaluator don't provide this option.....
Many thanks Marco