Here’s a working SVG example, with a little bit of javascript.
It’s not clear from your question what exactly you want the coloured divisions
to look like. For now I’ve just made them solid red. But you can make them look however you’d like by changing the fill of the <rect id="meter-colours" .../>.
let METER_DIVISIONS = 10;
let METER_DIVISIONS_GAP = 4;
// Initialise meter
let meterDivisionsElem = document.getElementById("meter-divisions");
// Calculate size of each meter division
let totalLen = meterDivisionsElem.getAttribute("r") * Math.PI;
let numGaps = METER_DIVISIONS - 1;
let divLen = (totalLen - METER_DIVISIONS_GAP * numGaps) / METER_DIVISIONS;
// Set meter divisions dash pattern
let pat = divLen + ' ' + METER_DIVISIONS_GAP + ' ';
meterDivisionsElem.setAttribute("stroke-dasharray", pat.repeat(numGaps) + ' ' + divLen + ' ' + totalLen);
// The slider form element
let sliderElem = document.getElementById("slider");
// The slider label element
let sliderLabelElem = document.getElementById("lbl");
// The needle element
let needleElem = document.getElementById("needle");
// The black bar element
let blackBarElem = document.getElementById("black-bar");
let blackBarLen = blackBarElem.getAttribute("r") * Math.PI;
// The meter colours element
let meterColoursElem = document.getElementById("meter-colours");
function setMeterTo(value)
{
// Update slider label
sliderLabelElem.textContent = value + '%';
// Update needle position
let rotation = value * 180 / 100;
needleElem.setAttribute("transform", "rotate(" + rotation + ")");
// Update black bar length
let barLen = value * blackBarLen / 100;
blackBarElem.setAttribute("stroke-dasharray", barLen + ' ' + (2 * blackBarLen));
// Update coloured division section of the meter
meterColoursElem.setAttribute("transform", "rotate(" + rotation + ")");
}
// Add an input change handler to the slider
sliderElem.addEventListener("input", function(evt) {
setMeterTo(evt.target.value);
});
// Initialise meter to start value
setMeterTo(25);#wrapper {
width: 600px;
}
#slider {
width: 100%;
}
#needle {
stroke-linecap: round;
}<div id="wrapper">
<svg id="meter" viewBox="0 0 200 110">
<defs>
<circle id="meter-divisions" r="90" stroke-width="20" stroke-dasharray="282.7"/>
<mask id="meter-divisions-mask">
<use xlink:href="#meter-divisions" stroke="white"/>
</mask>
</defs>
<g transform="translate(100,100) scale(1,-1)" fill="none">
<!-- The grey meter divisions -->
<use xlink:href="#meter-divisions" stroke="lightgrey"/>
<!-- The inner semicircular black bar -->
<circle id="black-bar" r="74" stroke="black" stroke-width="4" stroke-dasharray="232.5"/>
<!-- the needle -->
<line id="needle" x2="70" y2="0" stroke="black" stroke-width="2" stroke-dasharray="282.7"/>
<!-- The coloured form of the ,meter divisions that gets rotated into view with the needle.
It is initially off screen but gets revealed as it rotates. It is masked by using
a shape matching the gray divisions -->
<g mask="url(#meter-divisions-mask">
<rect id="meter-colours" x="-100" y="-100" width="200" height="100" fill="red"/>
</g>
</g>
</svg>
<input id="slider" type="range" min="25" max="100" step="25" value="25" />
<label id="lbl" id="value" for="">0%</label>
</div>Update re new needle image
First let’s simplify your needle image:
<svg width="650px" viewBox="0 0 65 51.333">
<g>
<path fill="#58595B" fill-rule="evenodd" d="M19.514,44.289c-1.652,5.013-7.056,7.736-12.066,6.083c-5.014-1.653-7.736-7.056-6.084-12.067c1.652-5.013,7.055-7.736,12.068-6.083C18.443,33.875,21.166,39.277,19.514,44.289 M17.318,43.564c-1.253,3.801-5.35,5.865-9.15,4.612c-3.797-1.253-5.863-5.35-4.609-9.148c1.254-3.8,5.349-5.865,9.148-4.612C16.506,35.67,18.57,39.766,17.318,43.564 M12.709,42.044c-0.412,1.254-1.765,1.936-3.02,1.523c-1.253-0.414-1.934-1.765-1.52-3.019c0.412-1.253,1.764-1.936,3.017-1.521C12.44,39.441,13.121,40.792,12.709,42.044"/>
<path fill="#58595B" d="M19.266,34.944c2.242,3.113,2.33,7.115,0.57,10.255l45.249-43.24L9.721,31.148C13.256,30.475,17.023,31.828,19.266,34.944"/>
<path fill="#FFFFFF" fill-opacity="0.8" d="M17.516,29.352c2.243,0.335,3.028,2.134,3.028,2.134L57.891,6.807L17.516,29.352z"/>
</g>
</svg>To use this in your meter, we’ll need to locate an accurate centre of rotation (the dot in the circle), and re-orient it so that it has zero angle. We may also need to adjust its scale to fit the meter.
By analysis and experimentation, the centre of rotation is at (10.44, 41.3) and the rotation needed to zero out the rotation is 35.8 deg.
Since the meter is centred at (0,0) we need to start by shifting and rotating the new needle by those amounts.
<svg width="650px" viewBox="0 0 65 51.333">
<g transform="rotate(35.8) translate(-10.44, -41.3)">
<path fill="#58595B" fill-rule="evenodd" d="M19.514,44.289c-1.652,5.013-7.056,7.736-12.066,6.083c-5.014-1.653-7.736-7.056-6.084-12.067c1.652-5.013,7.055-7.736,12.068-6.083C18.443,33.875,21.166,39.277,19.514,44.289 M17.318,43.564c-1.253,3.801-5.35,5.865-9.15,4.612c-3.797-1.253-5.863-5.35-4.609-9.148c1.254-3.8,5.349-5.865,9.148-4.612C16.506,35.67,18.57,39.766,17.318,43.564 M12.709,42.044c-0.412,1.254-1.765,1.936-3.02,1.523c-1.253-0.414-1.934-1.765-1.52-3.019c0.412-1.253,1.764-1.936,3.017-1.521C12.44,39.441,13.121,40.792,12.709,42.044"/>
<path fill="#58595B" d="M19.266,34.944c2.242,3.113,2.33,7.115,0.57,10.255l45.249-43.24L9.721,31.148C13.256,30.475,17.023,31.828,19.266,34.944"/>
<path fill="#FFFFFF" fill-opacity="0.8" d="M17.516,29.352c2.243,0.335,3.028,2.134,3.028,2.134L57.891,6.807L17.516,29.352z"/>
</g>
</svg>The needle is now horizontal, and positioned at (0,0).
We can now integrate it into the previous solution:
let METER_DIVISIONS = 10;
let METER_DIVISIONS_GAP = 4;
// Initialise meter
let meterDivisionsElem = document.getElementById("meter-divisions");
// Calculate size of each meter division
let totalLen = meterDivisionsElem.getAttribute("r") * Math.PI;
let numGaps = METER_DIVISIONS - 1;
let divLen = (totalLen - METER_DIVISIONS_GAP * numGaps) / METER_DIVISIONS;
// Set meter divisions dash pattern
let pat = divLen + ' ' + METER_DIVISIONS_GAP + ' ';
meterDivisionsElem.setAttribute("stroke-dasharray", pat.repeat(numGaps) + ' ' + divLen + ' ' + totalLen);
// The slider form element
let sliderElem = document.getElementById("slider");
// The slider label element
let sliderLabelElem = document.getElementById("lbl");
// The needle element
let needleElem = document.getElementById("needle");
// The black bar element
let blackBarElem = document.getElementById("black-bar");
let blackBarLen = blackBarElem.getAttribute("r") * Math.PI;
// The meter colours element
let meterColoursElem = document.getElementById("meter-colours");
function setMeterTo(value)
{
// Update slider label
sliderLabelElem.textContent = value + '%';
// Update needle position
let rotation = value * 180 / 100;
needleElem.setAttribute("transform", "rotate(" + (-rotation) + ")");
// Update black bar length
let barLen = value * blackBarLen / 100;
blackBarElem.setAttribute("stroke-dasharray", barLen + ' ' + (2 * blackBarLen));
// Update coloured division section of the meter
meterColoursElem.setAttribute("transform", "rotate(" + rotation + ")");
}
// Add an input change handler to the slider
sliderElem.addEventListener("input", function(evt) {
setMeterTo(evt.target.value);
});
// Initialise meter to start value
setMeterTo(25);#wrapper {
width: 600px;
}
#slider {
width: 100%;
}
#needle {
stroke-linecap: round;
}<div id="wrapper">
<svg id="meter" viewBox="0 0 200 110">
<defs>
<circle id="meter-divisions" r="90" stroke-width="20" stroke-dasharray="282.7"/>
<mask id="meter-divisions-mask">
<use xlink:href="#meter-divisions" stroke="white"/>
</mask>
</defs>
<g transform="translate(100,100)">
<g transform="scale(1,-1)" fill="none">
<!-- The grey meter divisions -->
<use xlink:href="#meter-divisions" stroke="lightgrey"/>
<!-- The inner semicircular black bar -->
<circle id="black-bar" r="74" stroke="black" stroke-width="4" stroke-dasharray="232.5"/>
<!-- The coloured form of the ,meter divisions that gets rotated into view with the needle.
It is initially off screen but gets revealed as it rotates. It is masked by using
a shape matching the gray divisions -->
<g mask="url(#meter-divisions-mask">
<rect id="meter-colours" x="-100" y="-100" width="200" height="100" fill="red"/>
</g>
</g>
<!-- the needle -->
<g id="needle">
<g transform="rotate(35.8) translate(-10.44, -41.3)">
<path fill="#58595B" fill-rule="evenodd" d="M19.514,44.289c-1.652,5.013-7.056,7.736-12.066,6.083c-5.014-1.653-7.736-7.056-6.084-12.067c1.652-5.013,7.055-7.736,12.068-6.083C18.443,33.875,21.166,39.277,19.514,44.289 M17.318,43.564c-1.253,3.801-5.35,5.865-9.15,4.612c-3.797-1.253-5.863-5.35-4.609-9.148c1.254-3.8,5.349-5.865,9.148-4.612C16.506,35.67,18.57,39.766,17.318,43.564 M12.709,42.044c-0.412,1.254-1.765,1.936-3.02,1.523c-1.253-0.414-1.934-1.765-1.52-3.019c0.412-1.253,1.764-1.936,3.017-1.521C12.44,39.441,13.121,40.792,12.709,42.044"/>
<path fill="#58595B" d="M19.266,34.944c2.242,3.113,2.33,7.115,0.57,10.255l45.249-43.24L9.721,31.148C13.256,30.475,17.023,31.828,19.266,34.944"/>
<path fill="#FFFFFF" fill-opacity="0.8" d="M17.516,29.352c2.243,0.335,3.028,2.134,3.028,2.134L57.891,6.807L17.516,29.352z"/>
</g>
</g>
</g>
</svg>
<input id="slider" type="range" min="25" max="100" step="25" value="25" />
<label id="lbl" id="value" for="">0%</label>
</div>