JSFiddle - React, Tailwind, and code Playground
by stealthdave
HTML
<div class="gt-ratings-meter">
<canvas class="gt-ratings-shadow-canvas" width="90" height="90"></canvas>
<canvas class="gt-ratings-meter-canvas" width="90" height="90"></canvas>
<div class="gt-ratings-rating"></div>
</div>
CSS
.gt-ratings-meter {
background: #069;
position: relative;
width: 90px;
height: 90px;
}
.gt-ratings-meter canvas {
position: absolute;
z-index: 10;
}
.gt-ratings-meter-canvas {
border: 1px solid black;
}
.gt-ratings-meter .gt-ratings-rating {
color: #fff;
font: bold 20px/90px Verdana, Arial Black, sans-serif;
width: 90px;
height: 90px;
text-align: center;
text-shadow: 1px 2px #000;
z-index: 20;
}
JavaScript
function arcDraw(radius, percent, width) {
meter.width = meter.width;
var center = meter.width / 2;
context.beginPath();
if (percent == 1) percent = 0.9999999;
context.arc(center,center,radius,(0 - Math.PI / 2),(0 - Math.PI / 2) + Math.PI * 2 * (1 - percent),true);
var endPoint = applyAngle({x:center,y:center}, (0 - Math.PI / 2) + Math.PI * 2 * (1 - percent), (radius - (width / 2)));
context.lineTo(endPoint.x, endPoint.y);
context.arc(center,center, (radius - width), (0 - Math.PI / 2) + Math.PI * 2 * (1 - percent), (0 - Math.PI / 2), false);
context.lineTo(center, center - radius - (width / 2));
context.closePath();
context.clip();
context.drawImage(img, (center - radius), (center - radius), radius * 2, radius * 2);
}
function applyAngle(point, angle, distance) {
return {
x : point.x + (Math.cos(angle) * distance),
y : point.y + (Math.sin(angle) * distance)
};
}
var img = new Image();
img.src =...