Extruding a fully constrained sketch

[jbreen]

I am trying to constrain a point(on a different part) to the sketch(yellow) on the inside surface of the triangle part. If I try the constraint like how it is now, it only allows me to select one segment, not the entire triangular shaped line. It would work if inventor saw the sketch as one single element, but it of course does not. I tried making a 3d sketch of the inner surface and then constraining to that, but it did not work. Is there any way to do this? Any way to make that triangle shape into a single element? 

[jbreen]

For the title, I meant constraining, not extruding.

[JDMather]

What is the purpose of constraining the point to the curve?

Do you have Inventor Professional with Dynamic Simulation?

If so, you can add a Point to Curve Joint.

[jbreen]

Its doing the same thing with the point to curve joint. It only selects one line segment or one face instead of the whole thing. I cant image it's impossible. It's just for a homemade water pump idea that I want to test out.