Orientation system

I have a nice question for every one.....

It's a question of user interface and how you would expect
a software to behave.....

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 ?

Left of Right ?

Meaning... When adding angles, where do you add, where do you
substract....?

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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Susan Huse /\ http://www.regis.berkeley.edu/sue
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University of California / / \ (510) 643-6307
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