How to create a pipe in a mechanical equipment?

[1240904365]

as the picture show ,when i click the mechanical equipment,a button will show on the left to generate a pipe,so how to do this in api?I don't know how to get the destination point's value of X and Y.

[jeremytammik]

http://thebuildingcoder.typepad.com/blog/2014/01/final-rolling-offset-using-pipecreate.html