Greetings!

I have problems with add mate for Face2 and Feature, because Face2 don' have Select() method.

I work with model of shaft:

Here my code:

public void doProcessSelection()
        {
            SelectionMgr selector = assembly.SelectionManager;
            int quantity = selector.GetSelectedObjectCount();
            Debug.WriteLine("selected {0} surface", quantity);
            for (int i = 1; i <= quantity; ++i)
            {
                try
                {
                    Face2 face = (Face2)selector.GetSelectedObject6(i, -1);
                    Feature feature = (Feature)face.GetFeature();
                    Surface surface = (Surface)face.GetSurface();
                    planeBase = planeBase == null && surface.IsPlane() ? face : planeBase;
                    firstCylinderBase = firstCylinderBase == null && surface.IsCylinder() ? face : firstCylinderBase;
                    secondCilinderBase = secondCilinderBase == null && surface.IsCylinder() ? face : secondCilinderBase;
                }
                catch (Exception ex)
                {
                    Debug.WriteLine("process selected faces error: {0}. \n\tstack trace: {1}", ex.Message, ex.StackTrace);
                };
            }
            Debug.WriteLine("processing select of user ... ok");
        }

When doProcessSelection() is finishes work, variable planeBase will be referenced on the plane(1).

Plane (2), she have a name, i found using references geometry:

Feature feature = planeLocator.Component.FeatureByName("mouting-plane");
feature.Select(true);

But Face2 don't have Select() method.

How I can make AddMate for this entities?

Advance thanks for help!