If you have had the chance to play around with the GraphicsBuilder Demo you surely saw a simple animation using bind() and a Thread, well here is another example you may want to try
renderingHint( key: 'antialiasing', value: 'antialias on' ) def rect = rect( x: 20, y: 20, width: 100, height: 100, arcWidth: 20, arcHeight: 20, asShape: true) def star = star( x: 20, y: 20, ir: 50, or: 80, count: 5, asShape: true ) def circle = circle( cx: 150, cy: 80, radius: 50, asShape: true ) def morph = morph( start: rect, end: star, morph: 0, strokeWidth: 3, color: 'orange', fill: 'yellow' ) Thread.start { sleep( 1000 ) (1..10).each { sleep( 50 ); morph.morph = 0.1*it } morph.color = 'blue'; morph.fill = 'cyan' morph.start = star; morph.morph = 0; morph.end = circle sleep( 1000 ) (1..10).each { sleep( 50 ); morph.morph = 0.1*it } morph.color = 'darkRed'; morph.fill = 'red' }
You will notice that several properties of the morph variable are changed over time, which makes this type of animation a little awkward to code. It would be better if a set of keyframes were specified, each keyframe would trigger changes on a set of properties... which is something the Timing Framework provides, now I really need to get the book

Another thing I'd like to do is create a Color range, which would help a lot in setting a different color at each keyframe for this animation in particular.

Keep on Groovying!