# Shadow boundary extraction

**URL:** <https://forum.dynamobim.com/t/shadow-boundary-extraction/9045>\
**Category:** Revit\
**Created:** [January 22, 2017, 2:06pm UTC](https://forum.dynamobim.com/t/shadow-boundary-extraction/9045 "2017-01-22T14:06:58Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![viktor\_kuzev](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/viktor_kuzev/32/48254_2.png) [@viktor\_kuzev](https://forum.dynamobim.com/u/viktor_kuzev)\
**Post date:** [January 23, 2017, 12:57pm UTC](https://forum.dynamobim.com/t/shadow-boundary-extraction/9045/6 "2017-01-23T12:57:51Z")

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@jostein_olsen I found those articles on this topic:

> **[Sun Direction, Shadow Calculation and Wizard Update](http://thebuildingcoder.typepad.com/blog/2013/06/sun-direction-shadow-calculation-and-wizard-update.html#3)**
>
> I enjoyed some wonderful hot sunny days since I returned from New England back to Switzerland. Summer finally arrived. A nice change after the rain and cold both here and in New Hampshire and Massachusetts. Talking about rain and sun leads up nicely...

  

> **[Extrusion Analyser and Plan View Boundaries](http://thebuildingcoder.typepad.com/blog/2013/04/extrusion-analyser-and-plan-view-boundaries.html)**
>
> Continuing the research and development for my cloud-based round-trip 2D Revit model editing project, I looked at using the ExtrusionAnalyzer to create a plan view boundary profile for the furniture and equipment family instances and implemented a...

They seem interesting, but I also don’t have the time to go deep into them right now.

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