Determine if a line lines flat against a face

Brad_Goodman

I have 2 (actually 3) bodies. The two grey ones, and the purple one. I have two grey faces (one on each body) that are both circular. My purple body was created by extruding these two faces and taking the intersection. Thus, the purple-dotted-line "lies flat against" one (actually both) of these faces.

So when I look at this purple body - I am trying to figure out which lines lie against the face. (I don't know if there is a better term for "lie flat against". It's more than just "intersecting". Is "coincide" the right word - or does that just mean "intersect"?) 

I cannot say "is this edge shared by this body/circle" - because there is no edge there on (either) circular body.

Thanks!

NeilCooke

You could try qCoincidesWithPlane - you would have to get the plane definition of each face using evTangentPlane, then do a qIntersection to find which curve lies in both planes. Never used it, but that's what the help implies.

Jake_Rosenfeld

@Brad_Goodman

If the extrude and intersection are happening in the same custom feature as the feature you are trying to query for these edge, you can probably actually get it with a clever use of tracking queries.  Let me know if you're interested and we can dive in.