How can we define body to ground springs from a named selection (vertex) using scripting?

Erik Kostson

Say we have a named selection containing vertices, and we want to automatically define body to ground springs using scripting?

Erik Kostson

Below is a script that can do that (it assumes we have a named sel. containing all vertices).



dir = 1 # direcion of spring : x=0,y=1,z=2

offset=0.1 # offset for ground point

Lst=100 # Strength

model = ExtAPI.DataModel.Project.Model

analysis=model.Analyses[0]

ns=DataModel.GetObjectsByName('Selection')[0] # chnage as needed

con=model.AddConnections()

nId=ns.Location.Ids

for ver in nId:

    v = ExtAPI.DataModel.GeoData.GeoEntityById(ver)

    xx=v.X

    yy=v.Y

    zz=v.Z

    spring=con.AddSpring()

    spring.LongitudinalStiffness=Quantity(Lst, "N/m")

    spring.Scope = SpringScopingType.BodyToGround
    ExtAPI.SelectionManager.ClearSelection()


    selection = ExtAPI.SelectionManager.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)

    selection.Ids = [ver]

    spring.MobileAppliedBy=RemoteApplicationType.DirectAttachment

    spring.MobileScopeLocation = selection

    if dir==0:

        spring.ReferenceXCoordinate = Quantity(xx+offset, "m")

        spring.ReferenceYCoordinate = Quantity(yy, "m")

        spring.ReferenceZCoordinate = Quantity(zz, "m")

    elif dir==1:

        spring.ReferenceXCoordinate = Quantity(xx, "m")

        spring.ReferenceYCoordinate = Quantity(yy+offset, "m")

        spring.ReferenceZCoordinate = Quantity(zz, "m")

    else:

        spring.ReferenceXCoordinate = Quantity(xx, "m")

        spring.ReferenceYCoordinate = Quantity(yy, "m")

        spring.ReferenceZCoordinate = Quantity(zz+offset, "m")