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import React from 'react'; | |
export default class CircleGauge extends React.Component { | |
constructor(props) { | |
super(props); | |
this.state = {}; | |
} // close constructor | |
render () { | |
const values = this.props.values || [ 15 , 35, 20, 30 ]; | |
const colors = this.props.colorMap || [ "#900", "#090", "#009", "#ff0" ] | |
const startingOffset = 25; | |
let currentSum = 0; | |
const getOffset = function(value) { | |
let thisOffset; | |
if (currentSum == 0) { | |
thisOffset = startingOffset; | |
} else { | |
thisOffset = (100 - currentSum) + startingOffset; | |
} | |
currentSum += value; | |
return thisOffset; | |
} // close getOffset | |
function generateQuickGuid() { | |
return Math.random().toString(36).substring(2, 15) + | |
Math.random().toString(36).substring(2, 15); | |
} // close generateQuickGuid | |
const thisID = this.props.id || generateQuickGuid(); | |
return ( | |
<svg id={ thisID } width="100%" height="100%" viewBox="0 0 42 42" className="donut"> | |
<circle className="donut-hole" cx="21" cy="21" r="15.91549430918954" fill="#fff"></circle> | |
<circle className="donut-ring" cx="21" cy="21" r="15.91549430918954" fill="transparent" stroke="#d2d3d4" strokeWidth="3"></circle> | |
{ | |
values.map( (value, index) => { | |
const thisOffset = getOffset(value); | |
return ( | |
<circle key={ thisID + "-" + index } className="donut-segment" cx="21" cy="21" r="15.91549430918954" fill="transparent" | |
strokeWidth="3" | |
style={{ | |
stroke: colors[index], | |
strokeDasharray: value + " " + (100 - value), | |
strokeDashoffset: thisOffset | |
}} | |
/> | |
) | |
}) | |
} | |
</svg> | |
); // return | |
} // close render | |
} // close CircleGauge |
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