Is SurfaceBody.MassProperties removed from Inventor 2024 API?

[nnikbin]

I use C# and when I want to access SurfaceBody.MassProperties, I get the following error:

Error CS1061 'SurfaceBody' does not contain a definition for 'MassProperties' and no accessible extension method 'MassProperties' accepting a first argument of type 'SurfaceBody' could be found (are you missing a using directive or an assembly reference?)

Is it defined in an assembly reference the should be added to the project?

[CattabianiI · Accepted solution]

> Is SurfaceBody.MassProperties removed from Inventor 2024 API?
No, and it's documented in the link you posted: https://help.autodesk.com/view/INVNTOR/2024/ENU/?guid=SurfaceBody_MassProperties

> Is it defined in an assembly reference the should be added to the project?
You should reference the Autodesk.Inventor.Interop.dll of Inventor 2024.

[Andrii_Humeniuk · Accepted solution]

Hello. Everything works for me. Here is a piece of code in C#:

PartDocument oDoc = m_InvApp.ActiveDocument as PartDocument;
PartComponentDefinition oDef = oDoc.ComponentDefinition;
MessageBox.Show(oDef.SurfaceBodies[1].MassProperties.Mass + " kg", "MassBody");

 

[nnikbin]

Thank you @CattabianiI  and @Andrii_Humeniuk,

My project was facing the issue because it was linked to an outdated version (26) of Autodesk.Inventor.Interop.