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Hour 9. Using Shape Tween to Morph > Task: Make a Simple Shape Tween

Task: Make a Simple Shape Tween

1.
In a new file, draw a circle onstage. (Don't group anything and don't convert anything to a symbol.)

2.
Insert a keyframe in frame 30 (click in the Timeline at frame 30 and press F6 or select Insert, Keyframe). This will be the end of our tween, and it will match the beginning.

3.
Insert a keyframe in frame 15. While the red current frame marker is on frame 15, put a little dimple into the circle: Use the Arrow tool to first deselect the circle (click off the circle), and then bring the pointer close to the edge until the cursor changes to a curved-tail pointer. Click and drag toward the center of the circle to reshape it, as shown in Figure 9.1.

Figure 9.1. Bending the edge of the circle in one of our keyframes; Flash will do the tweening to get here.


4.
Now we just need to set Shape Tweening for the two spans. Click frame 1, hold Shift, and then click frame 15. From the Properties panel select Shape from the Tween drop-down list.

5.
Do a Test Movie.

Following the Rules of a Shape Tween

Flash is unforgiving when you don't follow its rules. Luckily, the rules for a Shape Tween are very simple: no groups and no symbols. That's it! Remember this and Shape Tweens will be easy.


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