Comment 12 for bug 814457

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@Diederik: I was going to ask for tangent snapping too but didn't dare doing it: thanks to ~suv. My idea was to limit this to guides so we could have a guide with a modificator (please, don't kill me) that when snapping to a path is kept tangent (or perpendicular, it's the same) while running along the path. Of course the guide should go back to its original angle in cusps or intersection points, where a tangent is not defined. Alternatively, with a second modificator (ok, now you can kill me) the guide could always keep its original angle and snap to the path where it's tangent or perpendicular. Then, having a tangent (or perpendicular) guide, it's a joke getting a different object, rotating it to the right angle (snapping to the guide) and placing it in the tangent point (the guide origin). A pretty close new feature that don't give a lot of space for other requests ;)
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