FLASH: Shape tweening a circle

[Joe Tait]

Ok, trying to do something seemingly simple.


The effect I am trying to achive is this:


I want a small circle to get progressively bigger, and each successive

growth of the circle to stay as the next one appears, eventually reaching a

big circle, and having all the previous, smaller circles, then dissapear

(wheh). The visual effect would be similiar to sonar waves pulsing outward

(or tracers if you got a little wild in your teenage years).


What I've done so far:


I created the small circle, made it a symbol. Created enough frames to

cover the shape changes. Created a keyframe at the end of those frames.

Inserted the symbol. Scaled it to the size of the largest circle I wanted.

Clicked on one of the frames in between the two keyframes, went to

Modify>Frames>Tween Tab; chose motion tween (should I be choosing shape

tween----> but you can't shape tween a symbol, right?).


The smaller circle then does in fact progressively "morph" into the larger

one, but how do I then make those intermediate frames still visible, and

then dissapear on the last frame?


Thanks in advance,


Joe



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