(one of) The "HIDDEN" relations in SOLIDWORKS - FACE TANGENT

Ever want to make a 3D Sketched entity (usually a Spline) TANGENT to a FACE (funky curved face or otherwise), possibly for use as a bridge curve ??
Well in SOLIDWORKS 2009 (and possibly in the past) you can do it.
But it definitely isn’t obvious… 🙂

You pick the SPLINE, the FACE you want to make it TANGENT to, AND the EDGE of the face that the spline touches. THEN you get the magic “TANGENT FACE” relation !!
Piece of cake !! (when you know about it…)
(see the video for a visual explanation)

[youtube]https://www.youtube.com/watch?v=AbpdFeYw2VY[/youtube]