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Animating edges in SVG

· 2 min read
Simon Porritt

We've had a few queries recently regarding the possibility of adding support for animated edges to the Toolkit. Like this:

We've never exposed an API to do this because it's never really occurred to us do so, given that achieving this effect is about as easy as falling off a log. There are three parts to this:

1. Define the CSS animation

Define a CSS animation with a single keyframe that sets the dash offset:

@keyframes dashdraw {
0% {

2. Map the animation to a CSS rule

.animated-edge {
animation: dashdraw .5s linear infinite;

3. Use the cssClass property in an edge definition to map to this class

toolkit.render(someContainer, {
Animated Edges

That's it! That's all you need to do. As easy as falling off a log.

Library support

We tend to avoid polluting the Toolkit with functionality that is easily created such as this is, but if you're a licensee or evaluator of the Toolkit - or just someone with an opinion - and you've got suggestions for how we could usefully build support for this into the library, we'd definitely like to hear them.

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