Hi I’m doing a definition to analyse world orientations of Windows and Curtain Panels. It’s quite easy for Windows, but as node FamilyInstance.FacingOrientation cannot be used for Curtain Panels and CurtainPanel.PanelPlane doesn’t work for panels on a curved Curtain Wall, I’m running into trouble. …

Here’s another method that may also work assuming the normals of the CurtainPanel.Boundaries is consistent: Assuming it is, and assuming the surfaces created from the CurtainPanel.Boundaries results in inconsistent normals; calculate their dot product. Any scalar of -1 is an inverted Surface.Normal…

Don’t you find it funny it’s exactly 90 degrees off :smiley: [image]

From 0-180 deg the values are correct - also the two panels you’ve dimensioned, as their faces have angles of 12 and 29 deg related to true north. So the values are actually not 90 degrees off :slight_smile: The problem occurs on panels oriented from 180 to 360 deg related to true north, as it’s th…

I guess it could be something concerning the direction of the normals: [image] [image] Probably depending on the direction of the normal it’s calculating the bigger angle.

It’s calculating like shown below; All red are false. All angles should be calculated like the green ones, pointing away from the exterior side of the panels. [image]

Christian_Boggild_Sc, I have had to solve this problem a few months ago. I have posted it on our company blog, with the Dynamo files available for download. Maybe it will help you: http://edrpl.us/blog/2016/6/8/edr-glass-rose-beta-testing

@Thomas_Mahon That is brilliant! Thank you for your thorough walkthrough. As you assumed, Curve.Normal does the job. [image]

Here’s the final definition if somebody’s interested; Window Orientation.dyn (53.1 KB)

Hello, I have tried many things on my own and what you and @Thomas_Mahon have posted with no luck. The screen shot below is using the script you posted (without any changes). The two show, one was copied and then flipped but it is still showing the normal in the same direction. The two curtain wall…

Hi - I have a similar problem but need a different solution. I’m creating generic adaptive family members which are defined with 4 points (a rectangle) and a thickness. This works, but the thickness side dynamo/revit chooses is not consistent. I would like to do the above approach (vector dot pro…

Curtain Panel Orientation - false normals

Revit

Steven February 9, 2018, 12:30am 11

I just found Wall.ExteriorDirection in Archi-lab and it works. Sorry for the post.

Adaptive Component - constraining/correcting offset direction?

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Curtain Panel Orientation - false normals

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