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Basic Stroke animation

gilesht test
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Warning: Please note

This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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Dear All,


Making my first steps in GSAP world and loving it - but now the questions start. I get the concept of animating SVG objects .from .to (loving it), get the principles of Bezier, and understand the potential  of morphing - but I’m not sure which is the best way to go about the following ... would appreciate your guidance


I’d like to make a simple animation of a line (stroke), I’d like it to go through a number of keyframes - back in the day I’d create a stroke with a number of nodes (illustrated here with red & blue dots) and then animate the following key frames ...


KF1 : blue nodes displaced 90 degrees




KF2 : blue nodes back in original position




KF3 : nodes 5-7 displaced to create the following



So how would I bet go about doing this in GSAP - again your feedback would be brilliant

Thanks in advance

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Thank you for your help OSUblake - really appreciate it

  • i get where you are coming from with the declaration of p1-p3
  • get how you are tweening the p2 with attr{}

but I'm having trouble adding the next tween (e.g the tween from kf 2 to kf 3) ... do I ad another attr:{},or is this more of a timeline event (e.g how do I create multiple polyline keyframes)



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A timeline would be best. So you could do something like this, and they will play sequentially. 

var tl = new TimelineMax()
  .to(polyline, 1, { attr: { points: pointsForKF1 }})
  .to(polyline, 1, { attr: { points: pointsForKF2 }})
  .to(polyline, 1, { attr: { points: pointsForKF3 }})


If you need help, try putting what you have in demo.

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