Orientation system

[Susan Huse]

> You have a line along of which you want certain symbols to 
> be drawn using a specific orentation....  If you'd say
> "I want that symbol to be drawn +30 degrees added to the
> vector direction", where would you expect the + to go ?
> 
> Meaning...  When adding angles, where do you add, where do you
> substract....?
> 

I would also go clockwise from the existing line.

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