Dynamo can be used to Set the Cross-Section Rotation parameter for multiple beams.
In this example, I am creating purlins using ‘Beam System’ in Revit, then using Dynamo to set the Cross-Section Rotation for all the Purlins in the Beam System so that they follow the curve profile.
Here’s the workflow:
1. Create a Beam System in Revit, selecting the curved members as supports:
(Be sure to set it to 3D in the Properties)
2. Use Dynamo to set the Cross-Section Rotations.