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 Tutorials » Actionscripting/Expert
Morphing shapesWe have to morph shapes into one another. Although this may seem like a hard task it's actually as simple as moving an object from point A to point B. We'll move the three points of a first curve (start, control and end points) to the corresponding locations in a second curve. Let's start with a simple example morphing a C shape into a J. Create a new movie and add this script to the first frame:
//Create movie clip and mask
counter = -1;
_root.createEmptyMovieClip('line', 0);
animInt = setInterval(doAnim, 17);
animDir = 1;
function doAnim()
{
var currMC = _root.line;
var time = animIndex/60;
var dist = time;
with(currMC)
{
//Coords for the C shape: (150, 25), (25,100), (150,175)
//Coords for the J shape: (150, 25), (125,200), (50,125)
clear();
lineStyle(0x000000);
moveTo(150,25);
curveTo(25+100*dist,100+100*dist,150-100*dist, 175-50*dist);
}
animIndex += animDir;
if(animIndex>= 60)
{
animDir = -1
}
if(animIndex <= 0)
{
animDir = 1
}
}
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Dynamic masking using the drawing API II
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