How to create dynamo-geometry?

@c.poupin ,

the goal is i want to compare two modells by geometry independed from categories.

i have also to make union of all categories to get this single concrete geometry!

f. e. Model (ARC) has a Volume from 200.000m³ and Model STATIK has a Volume from 201.000m³

so i can see it has a delta from 5.0 %

i see in my project the Planers have different model-rules but come to the same result. i want to say the model is fine inspite of the different “modelstyles”!

thats the aim