Learning Forum

[Tobias Zeller]

Hey everyone,
so I got a big API-Code where I'm importing a Step file. The Step-file is 2D surface body. Unfortunately, however, the dimension is not recognized correctly during import and set to 3D. Now, I would like to change the whole thing afterward to 2D or "Model2DBehavior.PlaneStress". I found in the other topic that
"body.Behavior = Model2DBehavior.PlaneStress" should be the key, but I can't access that via:

ExtAPI.DataModel.Project.Model.Geometry.Bodies

I'm really thankful for any help.

[Erik Kostson]

 

 

 

HI

The easiest is just to go to the system and change under the Geometry/Properties, the Analysis Type to 2D.

As for your question related to mechanical scripting:

You need another line to set dimensions to 2D:

 

        Body.Dimension=ShellBodyDimension.Two_D
        Body.Behavior=Model2DBehavior.PlaneStrain

All the best

Erik

 

 

 

[Tobias Zeller]

@Erik Kostson
thanks a lot for your idea. Unfortunately, this is not working for me.
If I try: "ExtAPI.DataModel.Project.Model.Geometry.Body.Dimension=ShellBodyDimension.Two_D" it's saying "'Geometry' object has no attribute 'Body' ".

And if I try: "ExtAPI.DataModel.Project.Model.Geometry.Bodies.Dimension=ShellBodyDimension.Two_D" is saying " 'int' object has no attribute 'Dimension' " as "Bodies" resullts in an int-value.

Am I missing something minor?

Thanks a lot!

[Erik Kostson]

 

HI

So this works (2023 R1 and R2):

model = ExtAPI.DataModel.Project.Model
Parts = model.Geometry.GetChildren(DataModelObjectCategory.Part,True)

for Part in Parts:
    for Body in Part.Children:
        print(Body.Name)
        Body.Dimension=ShellBodyDimension.Two_D
        Body.Behavior=Model2DBehavior.PlaneStrain

See the ACT Start Page for examples on how to loop and get geometry.

Closing the post.

Erik