Created
August 29, 2013 14:20
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circular progres bar with Raphael
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| <!doctype html> | |
| <script src="raphael.js"></script> | |
| <body> | |
| <div id="progressBar"> </div> | |
| </body> |
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| var paper = Raphael("progressBar", 110, 110); | |
| paper.customAttributes.arc = function (centerX, centerY, startAngle, endAngle, arcEdge) { | |
| var radians = Math.PI / 180, | |
| largeArc = +(endAngle - startAngle > 180), | |
| // calculate the start and end points for both inner and outer edges of the arc segment | |
| // the -90s are about starting the angle measurement from the top get rid of these if this doesn't suit your needs | |
| outerX1 = centerX + arcEdge * Math.cos((startAngle-90) * radians), | |
| outerY1 = centerY + arcEdge * Math.sin((startAngle-90) * radians), | |
| outerX2 = centerX + arcEdge * Math.cos((endAngle-90) * radians), | |
| outerY2 = centerY + arcEdge * Math.sin((endAngle-90) * radians); | |
| // build the path array | |
| var path = [ | |
| ["M", outerX1, outerY1], //move to the start point | |
| ["A", arcEdge, arcEdge, 0, largeArc, 1, outerX2, outerY2] //draw the outer edge of the arc | |
| ]; | |
| return {path: path}; | |
| }; | |
| var background = paper.circle(55, 55, 45).attr({stroke: "#f1f2f1", "stroke-width": 20}); | |
| var text = paper.text(55, 55, '0%').attr({'font-size':20, 'font-family': 'Helvetica Neue", Helvetica, Arial, sans-serif', 'font-weight': 'bold'}); | |
| var circle = paper.path().attr( {stroke: "#000000", "stroke-width": 20, arc: [55, 55, 0, 1, 45] } ); | |
| var animRotation = Raphael.animation({transform: 'r360,55,55'}, 2500).repeat(Infinity); | |
| circle.animate(animRotation); | |
| // update value based on percent uploaded for e.g | |
| // var percent = evt.loaded/evt.total * 100; | |
| // var percentDegree = Math.round(percent * 3.6); | |
| // circle.attr( { arc: [55, 55, 0, percentDegree - 0.01, 45] } ); | |
| // text.attr({text: Math.round(percent) + '%'}); |
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