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Extract and Calculate Overlaying areas

C
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Hello everyone,

I've got a certain problem that I can't solve for many days.

 

I'm trying to find the overlaying areas between an IFC file and an ACAD one.

 

I explain the idea, the purpose is that I've got 2 readers as entries : one for IFC and one for ACAD. then the we need to find the spatial relation between each objects of the IFC and the zones drawn in ACAD. --That point is OK.

 

Then for the objects which have 2 _related_candidates, I would like to calculate the overlaying area with each zone to keep only the one with the biggest overlaying area.

My problem right now is about that second step that I can't solve for the moment.

 

I hope it's clear enough and you'll be able to help me with this matter.

Regards,

Clem

Best answer by jonas_nelson

Hi @clem_lx

 

I think something like this should work. (I've used it to create a hexagon map where I wanted to populate the hexagon with only the dominant landuse in the hex).

 

In my workspace, I put the Counter on the hexagons, so that for each hexagon, I kept the most dominant landuse. In your case, maybe you want to look at each IFC surface and keep the dominant ACAD area - or the other way around.

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4 replies

antoine
Contributor
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  • antoineContributor
  • Contributor
  • November 26, 2019

Hi,

 

Maybe you need to project your surfaces if they are 3d. Have you tried SurfaceFootprintReplacer?

C
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  • clem_lx
  • Author
  • November 26, 2019
antoine wrote:

Hi,

 

Maybe you need to project your surfaces if they are 3d. Have you tried SurfaceFootprintReplacer?

Hey,I'm working only with footprints to compare some 3D objects with a 2D zoning.

The matter is how to extract some geometries under conditions in order then to calculate the overlaying areas.

jonas_nelson
Enthusiast
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  • jonas_nelsonEnthusiast
  • Enthusiast
  • Best Answer
  • November 26, 2019

Hi @clem_lx

 

I think something like this should work. (I've used it to create a hexagon map where I wanted to populate the hexagon with only the dominant landuse in the hex).

 

In my workspace, I put the Counter on the hexagons, so that for each hexagon, I kept the most dominant landuse. In your case, maybe you want to look at each IFC surface and keep the dominant ACAD area - or the other way around.

C
Forum|alt.badge.img
  • clem_lx
  • Author
  • November 26, 2019
jonas_nelson wrote:

Hi @clem_lx

 

I think something like this should work. (I've used it to create a hexagon map where I wanted to populate the hexagon with only the dominant landuse in the hex).

 

In my workspace, I put the Counter on the hexagons, so that for each hexagon, I kept the most dominant landuse. In your case, maybe you want to look at each IFC surface and keep the dominant ACAD area - or the other way around.

Thanks for the tip, I'll try it and comme back with some news

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