# RevitFace.FromDynamoSurface null value

**URL:** <https://forum.dynamobim.com/t/revitface-fromdynamosurface-null-value/47620>\
**Category:** Uncategorized\
**Created:** [March 4, 2020, 11:20am UTC](https://forum.dynamobim.com/t/revitface-fromdynamosurface-null-value/47620 "2020-03-04T11:20:46Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![selim.celem](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/selim.celem/32/73146_2.png) [@selim.celem](https://forum.dynamobim.com/u/selim.celem)\
**Post date:** [March 4, 2020, 1:13pm UTC](https://forum.dynamobim.com/t/revitface-fromdynamosurface-null-value/47620/3 "2020-03-04T13:13:04Z")

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![Capture1](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/c/e/ce66f53eb38027ba0744c2134fbd9bce0c167b24.png)

It’s for dimensioning walls with a model line as reference, I took it from the explanation of @viktor_kuzev in this post back in 2016: [Automatic Dimension Walls](https://forum.dynamobim.com/t/automatic-dimension-walls/6970/5)

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