I am looking to create the appearance of a shape being drawn. I need a few shapes, but for the example think of a simple U. I have tried several different approaches. First, I tried a shape tween at 45 degree increments. That was a wrong approach. Then I tried using After Effects, but the movies lacked flexibility and were laggy. Currently I am building the shapes using two shape tween MCs(an arc that goes 11.25 degrees and a line that goes 21px), and repeating it. This seems to be working, but is very tedious, and lacks flexibility. i.e. if I decided I want the shape just a bit shorter I have to remove the MC incident from every frame. Also I have no possiblity of changing the speed without completely rebuilding the shape becasue I'm doing a frame by frame animation.
Any Ideas would be appreciated.
draw your shape. then add a mask layer above your shape that gradually masks your shape.
I made the animation using three movie clips; 21px line, CCW arc, & CW arc.
However, I have used your recommendation for many different applications since I saw your post!