Re: FLASH: Shape tweening a circle

[WebFeat: Gavin Frayne]

Joe


I tried doing something similar, and sorry to say it but it doesn't work.

There are a couple ways of getting around the problem to achieve a similar

effect.


1. You place a number of cirlces above one another in the first frame of

your movie/scene. This should be the same number as the final number circles

you want to display right in the middle of the animation. Then you make a

layer for each one and give them a motion tween to the same size (the

largest outer ring). Start each layer one frame after the next. When you run

the animation, the circles should move out one after the other, creating a

fade effect. With use of alpha and varying shades of the same colour you can

actually make a very nice ripple or sonar effect. Mail me if you have

trouble understanding the above.


2. You can create one circle and fill it with a radial fill using alpha and

your desired colour. Edit the fill so that there is a large black hole in

the center of your circle and a bright ring of colour around the edge. When

you tween this to expand, it creates a super shockwave effect, leaving the

fill trailing off the edge of the circle. Once it reached it's desired size

you can alpha it away or fill in the black part or do something to it.


Let me know if you have trouble.


Regards

Gavin



-----Original Message-----

From: Joe Tait <

taitpdq [dot] net

>

To: Flash List <

flashershocker [dot] com

>

Date: Tuesday, January 26, 1999 7:31 AM

Subject: FLASH: Shape tweening a circle



>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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