API - Selecting the Normal to a Plane

Hi guys,

Back again for yet another API questions.

I want to test the normal of a planer surface against a plane itself.

To test the surface I simple did the following:
ThisFeatureSurfaces = ThisFeatureBackStop.GetFaces
For Each i In ThisFeatureSurfaces
FaceNorm = i.Normal

I then can user the elements of the FaceNorm array.

For the plane however this does not work. I have also tried using
PlaneParams to no avail.

What I've done is select the plane I want then:
Set TestingPlane = SelMgr.GetSelectedObject5(1)
Debug.Print TestingPlane.Name
PlaneNormal = TestingPlane.PlaneParams
Debug.Print "Plane Normals = " & PlaneNormal(0) & ", " & PlaneNormal(1)
& ", "; PlaneNormal(2)

My first debug does inface verify that I have the plane I want selected
however the PlaneParams statement returns the error:"
"Object doesn't support this property or method"

Effectively what I'm trying to do is ensure the surface I need to use from
the top feature is the surface that is not on the plane or in my thinking
has a normal that is opposite.

Thanks in advance for the help again

-hack

 

Surface:laneParams seems only to work for planar surfaces, not datum
planes. It is part of the Surface object definition.

For reference lanes, I think you need to use RefPlane::Transform.