This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The setOrientToAuto() method of the SVGMarkerElement interface sets the value of the orient attribute to auto.
setOrientToAuto()
None.
None (undefined).
In the following example the value of the orient attribute is updated using setOrientToAuto().
<svg id="svg" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
<defs>
<marker
id="arrow"
viewBox="0 0 10 10"
refX="5"
refY="5"
markerWidth="6"
markerHeight="6"
orient="90">
<path d="M 0 0 L 10 5 L 0 10 z" />
</marker>
</defs>
</svg>
let marker = document.getElementById("arrow");
console.log(marker.orientAngle.baseVal.value);
marker.setOrientToAuto();
console.log(marker.orientAngle.baseVal.value);
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
setOrientToAuto |
1 | 12 | 1.5 | ≤12.1 | 3 | 18 | 4 | ≤12.1 | 1 | 1.0 | 3 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/API/SVGMarkerElement/setOrientToAuto