I'm talking about a specific tool available in most 2d software to adjust vertex graphics.. I'm not sure how it's called, but once you click on the vertex it shows these two lines coming away from it, you can move them around or pull away and it changes the shape of the curves.. Maya has it built in it's graph editor, but I couldn't figure it out while playing with the curves themselves.
Here's a screenshot from Flash of the thing I'm talking about..
