Sunday, 7 November 2021

SVG gauge meter with dynamic strokes

I am trying to build an SVG something similar to: enter image description here

The strokes are completely dynamic, as they come from an API. I want to place the strokes at the points received (as array of percentage values). Need not be in order and the distance between 2 strokes need not be equal

I am trying with something like below but not able to come up with a logic for the placement of strokes. I tried to follow the answer here: https://stackoverflow.com/a/66076805/6456247 but the distance between strokes here are equal. In my scenario, they are not consistent.

Fiddle Link: https://jsfiddle.net/puq8v594/2/

let divisionsElement = document.getElementById('divisions');
let length = parseInt(divisionsElement.getAttribute("r")) * Math.PI;
let divisionsArray = [20,30,80,90]; //stroke at 20%, 30%,80%,90% position
let METER_DIVISIONS_GAP = 0.2;

divisionsArray.map(ele => {
    setupPath(ele);
})


function setupPath(val) {
    divisionsElement.setAttribute("stroke-dasharray", val + ' ' +METER_DIVISIONS_GAP);
}
circle {
  fill: none;
}
.circle-back {
  stroke: #F8F6F0;
  stroke-width:9px;
}

.circle-fill {
  stroke: grey;
  stroke-width: 10px;
}

.circle-progress {
  stroke: blue;
  stroke-width:9px;
}
<svg viewBox="0 0 126 126" preserveAspectRatio="xMinYMin meet">

  <clipPath id="cut-off">
    <rect x="0" y="0" width="100%" height="50" />
  </clipPath>

  <clipPath id="progress-percent">
    <path x="0" y="0" width="12%" height="50" />
  </clipPath>
  
  <g>
    <circle r="35%" cx="40%" cy="40%" class="circle-fill" clip-path="url(#cut-off)" />

    <circle id="divisions" r="35%" cx="40%" cy="40%" class="circle-back" clip-path="url(#cut-off)" 
    stroke-dasharray="20 0.5" stroke-dashoffset="25" />

    <circle r="35%" cx="40%" cy="40%" class="circle-progress" clip-path="url(#progress-percent)" />
  </g>
  
</svg>


from SVG gauge meter with dynamic strokes

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