Animating SVG's fill-opacity

[dxc 1 Likes (Newbie)]

Instead of animating the opacity, it seems to wait until the tween is over and then instantly jumps to the final opacity. Any thoughts on what I might be doing wrong?

See the Pen JeDLo by anon (@anon) on CodePen

[Diaco 1,999 Likes (Superhero)]

Hi dxc 

 

Since there isn't the "fill-opacity" at first  , you should create that attr , and then tween that ;

try this :

var moon = document.getElementById("moon");
//moon.setAttribute("fill-opacity",1);
TweenLite.set(moon,{attr:{"fill-opacity":1}});
TweenLite.to(moon, 1, {attr:{"fill-opacity":.5}});

or add that attr to svg path tag in html :

<path id="moon" fill="#9C2726"  fill-opacity=1 ..../>

[dxc 1 Likes (Newbie)]

You, Diaco, are the best. 

[chrisgannon 226 Likes (Specialist)]

Great idea and it works a treat.

[chrisgannon 226 Likes (Specialist)]

As a follow up I'm finding that even though I declare 'fill' in the attributes this same thing is happening. I can't animate the fill (using AttributePlugin) from one colour to another. It just jumps to it at the end of the tween.

 

Any ideas?

[chrisgannon 226 Likes (Specialist)]

Ok I just read on another post that I don't need to use the AttributePlugin. D'oh.

[MSCAU 8 Likes (Newbie)]

For (my own) future reference, here's what works, showing that a circle's radius needs to be tweened within the attr property but stroke-width, stroke-opacity and fill-opacity (for example) don't:

 

<circle cx="75" cy="130" r="0" id="wave"/>
  
var tl = new TimelineMax({repeat:-1});
tl.to("#wave", 1, {attr:{r:100}, 'stroke-opacity': 0, 'stroke-width': 5, 'fill-opacity': 0});