CNX 671 Local Axes of Structural Objects

[bjoernsteinhagen]

Description & motivation

• orientationAngle is inherint in the Element1D (and inheriting CSIELement1D), but the connectivity is lacking. This is made evident in the connection Revit to ETABS.
• A cross section rotation applied to analytical members in Revit, does not convert to Speckle (i.e. the orientationAngle is always 0)
• This results, obviously in no local axis rotations to elements recevied from Revit in ETABS
• Request supported and requested by the team at Karamba3D

Changes:

• Write to the orientationAngle property in the ConvertToSpeckle() from Revit.
• The result of radians remains as is (assumed to be standard Speckle internal units from what I could see)
• In ETABS ConvertToNative radians converted to degrees for ETABS' SetLocalAxes

Validation of changes:

Sent from Revit - now has orientationAngle in radians

Received in ETABS

Disclaimer

• ETABS does enforce a alignment of local axis to global axis which won't conform to typical FEM right-hand rule. HOWEVER, this is not a Speckle thing. When working with the Analytical Model in Revit, conform to axis alignments.
• Element2D not included in the scope of this PR

Checklist:

• My pull request follows the guidelines in the Contributing guide?
• My pull request does not duplicate any other open Pull Requests for the same update/change?
• My commits are related to the pull request and do not amend unrelated code or documentation.
• My code follows a similar style to existing code.
• I have added appropriate tests.
• I have updated or added relevant documentation.

[linear]

CNX-671 Local Axes of Structural Objects