Shape Tweening via ActionScript?

Forum|Forum|19 years ago
December 26, 2006
5 replies
515 views

Hey all,

I am trying to create a tweening using ActionScript between two vector graphic shapes.

The application is very simple: I have frames with different shapes (frame 1: circle; frame 2: square; frame 3: triangle and so on). I have an edit box in which the user can select two frames. I want to automatically create a tweening between those shapes and display it to the user.

From what I saw, the Tween Class can affect only size, location, alpha, etc. There is no option to define two objects (or for that matter two frames) and let the Action Script interpolate between them... is that so? Does anyone have creative suggestions for solving this problem?

ActionScript

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kglad

Community Expert

no. you can use actionscript to create a tween between two shapes. but it's not easy.

check www.kglad.com/code snipets/shape tween for an example using a.s. to tween arbitrary shapes.

A

Anonymous

So, digging up an old topic here.

Is this still the case where you would need to generate every possible tween up front between the shapes that are available in order to use actionscripting to generate tween effects between 2 different shapes in the library dynamically?

N

Newsgroup_User

Inspiring

Create all the n * (n-1) possible tweens and just display the appropriate
one the user selects. You don't have to do EVERYTHING in script :)
--
Jeckyl

kglad

Community Expert

you have to draw all intermediate "tweens", not just practically all.

and there is no easy way to do that but it is doable using the bitmapdata class.

kglad

Community Expert

yes, it's true that you cannot shape tween using actionscript alone. you could use a combination of actionscript and timeline tweening and that would probably be the easiest for the situation you're describing.

you could utilize the drawing methods and sequentially draw the shapes that you want but that would be more involved that combining actionscript of timeline tweening.

D

daphiesAuthor

Participant

Thanks.

So you're saying that I have to practically draw all the possibilities (square to circle, square to triangle, circle to square and so on)...? Does it mean that if the shape is dynamic (e.g. drawn by the user in real time) there is no way of displaying a tween between it and another shape?

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