JSFiddle - React, Tailwind, and code Playground
HTML
<svg>
<path id="arc1" fill="none" stroke="#446688" stroke-width="20" />
</svg>
<script src="https://d3js.org/d3.v3.min.js"></script>
CSS
svg {
height: 1000px;
width: 1000px;
}
JavaScript
function polarToCartesian(centerX, centerY, radius, angleInDegrees) {
var angleInRadians = (angleInDegrees-90) * Math.PI / 180.0;
return {
x: centerX + (radius * Math.cos(angleInRadians)),
y: centerY + (radius * Math.sin(angleInRadians))
};
}
function describeArc(x, y, radius, startAngle, endAngle){
var start = polarToCartesian(x, y, radius, endAngle);
var end = polarToCartesian(x, y, radius, startAngle);
var largeArcFlag = endAngle - startAngle <= 180 ? "0" : "1";
var d = [
"M", start.x, start.y,
"A", radius, radius, 0, largeArcFlag, 0, end.x, end.y
].join(" ");
return d;
}
var i = 0;
setInterval(function(){
i++
document.getElementById("arc1").setAttribute("d", describeArc(150, 150, 50, i, 360));
if (i === 300) {
i = 320;
}
}, 20);