How can I get the moments of inertia on a body?

Pernelle Marone-Hitz
Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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edited June 2023 in Structures

How can I get the moments of inertia on a body through scripting?

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  • Pernelle Marone-Hitz
    Pernelle Marone-Hitz Member, Moderator, Employee Posts: 871
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    Answer ✓

    The following code can be used:

    def GetMoments_byCS(body,CS,unitID=None):
    if unitID == None:
        unitID = ExtAPI.DataModel.InternalObject["ds"].UnitSystemID
    cadUnits = ExtAPI.DataModel.Project.Model.Geometry.InternalObject.CADUnits
    sm = ExtAPI.SelectionManager
    smio = ExtAPI.SelectionManager.InternalObject
    selection = sm.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)
    selection.Ids = [body.GetGeoBody().Id]
    sm.ClearSelection()
    sm.AddSelection(selection)
    MMI = ExtAPI.DataModel.Project.Model.InternalObject.getMassMomentofInertiaofOneSelectedBody(unitID,cadUnits, smio, 1, CS.ObjectId)
    return [MMI.Item(x+1) for x in range(6)]

Answers

  • Landon Mitchell Kanner
    Landon Mitchell Kanner Member, Employee, GitHub-issue-creator Posts: 327
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    Note that this solution relies on undocumented commands, which are outside of any Quality Assurance (QA) programs and may not be forward compatible. Use at your own risk.

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