# Filtering surface from a solid

**URL:** <https://forum.dynamobim.com/t/filtering-surface-from-a-solid/4772>\
**Category:** Revit\
**Created:** [June 29, 2016, 10:10am UTC](https://forum.dynamobim.com/t/filtering-surface-from-a-solid/4772 "2016-06-29T10:10:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Daniel\_Hurtubise](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_hurtubise/32/146534_2.png) [@Daniel\_Hurtubise](https://forum.dynamobim.com/u/Daniel_Hurtubise)\
**Post date:** [June 29, 2016, 10:10am UTC](https://forum.dynamobim.com/t/filtering-surface-from-a-solid/4772/1 "2016-06-29T10:10:24Z")

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Morning all,  
i have a model element (roof) that as point editing. I want to get all the “top surface”. Basically not the side or underneath.  
I looked at the Surface.FilterByOrientation. It finds the verticals but i can’t seem to find a way to remove them from the original list. I need to find a piece of information but there’s no “ID”.  
Any help is much appreciated

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/9/9d343e301ccb13fb0742da492076971d2b768780.jpg)

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**Author:** ![Daniel\_Hurtubise](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daniel_hurtubise/32/146534_2.png) [@Daniel\_Hurtubise](https://forum.dynamobim.com/u/Daniel_Hurtubise)\
**Post date:** [June 29, 2016, 10:20am UTC](https://forum.dynamobim.com/t/filtering-surface-from-a-solid/4772/2 "2016-06-29T10:20:59Z")

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I managed to clean it up using this, im still open to smarter way to do it 😉

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/2/2528cdabec8cf6f19cbaa9fda95e4588b0e30f8a.jpg)

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**Author:** ![Vikram\_Subbaiah](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/vikram_subbaiah/32/50797_2.png) [@Vikram\_Subbaiah](https://forum.dynamobim.com/u/Vikram_Subbaiah)\
**Post date:** [June 29, 2016, 10:44am UTC](https://forum.dynamobim.com/t/filtering-surface-from-a-solid/4772/3 "2016-06-29T10:44:51Z")

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![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/9/9ece6a319c1962e6a241d4fa4027bd24cb360a93.png)