# Geometry Intersects Gives Empty Lists (3). Why? (In 47, out 44)

**URL:** <https://forum.dynamobim.com/t/geometry-intersects-gives-empty-lists-3-why-in-47-out-44/50893>\
**Category:** Lists-Logic\
**Tags:** geometry, dynamo\
**Created:** [May 20, 2020, 2:40pm UTC](https://forum.dynamobim.com/t/geometry-intersects-gives-empty-lists-3-why-in-47-out-44/50893 "2020-05-20T14:40:40Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![bvs1982](https://avatars.discourse-cdn.com/v4/letter/b/43a26b/32.png) [@bvs1982](https://forum.dynamobim.com/u/bvs1982)\
**Post date:** [May 25, 2020, 7:02am UTC](https://forum.dynamobim.com/t/geometry-intersects-gives-empty-lists-3-why-in-47-out-44/50893/11 "2020-05-25T07:02:33Z")

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> You are creating colored roomplans right?

No, i am not.

I am creating some sort of Area plans per apartment.  
We use the terms _verblijfsruimte [VR]_ and _verblijfsgebied [VG]_.  
A group of VR’s where people can ‘stay,’ which a next to each other, are a VG.  
I need to know the area (m²) for this VG. Walls are part of this VG area. In the end i also  
want to use a Filled Region (///////).

A living room and a bed room can be part of VR.  
A bathroom, bedroom, hallway can NOT be a part of a VR.

**In example**  
The area of a VG containing a living room of 4x5 m², a bedroom of 4x4 m²  
and another bedroom of 4x3 m² is ~48.8 m. So that is with the walls (4x0.1)  
seperating the VR included.

Basicly i am trying to do the same as [this](https://forum.dynamobim.com/t/create-areaplan-based-on-room-parameter/21197), but with a different approach.

I want to use the solids only to create my curve for the boundary for the Filled Region.

**Edit**  
I got it to work using [this](https://forum.dynamobim.com/t/create-areaplan-based-on-room-parameter/21197/7) approach but on the same place the Solids don’t intersect with the Plane  
the Boundary of my Rooms is like this

![Hmmz](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/1/f1765409a0e9f836ba8a8f630d838809c5492e5d.png)

**Edit2**  
No, nevermind. On my second test [this](https://forum.dynamobim.com/t/create-areaplan-based-on-room-parameter/21197/10) failed. I get the following warning:  
_Warning: PolyCurve.ByJoinedCurves operation failed.  
PolyCurves may be branching_.

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