HELP! Mesh Inclusion.

Hi,

I'm having a bit of trouble with mesh inclusion in Grasshopper.

What I've done is created a structure which is made from polylines which are then put through a pipes component. I have got points for every intersection of polylines though. What I want to do is find which of those points (or parts of polylines) are in the mesh highlighted in the picture because I want to get rid of those but keep all the points NOT in the mesh.

Although I've tried to run the mesh inclusion component, I can't seem to find the right points to plug into it. In the second image you can see that I've created boxes initially which I then hid after I had exploded the faces and got the points from each box face. Which output should I plug into the mesh inclusion Points parameter?

Any assistance would be much appreciated!

Steph