How to create a curved SVG path between two points?

I need to draw a symmetrically curved line between the centers of two circles.

<svg>
    <circle class="spot" id="au" cx="1680" cy="700" r="0"></circle>
    <circle class="spot" id="sl" cx="1425" cy="525" r="0"></circle>

    <line id="line1" stroke-width="2" stroke="red"/>
</svg>

This is the code I wrote so far. < line > element should be replaced with a curved path.

function drawNow() {
    let point1X = document.getElementById("au").getAttribute("cx");
    let point1Y = document.getElementById("au").getAttribute("cy");
    let point2X = document.getElementById("sl").getAttribute("cx");
    let point2Y = document.getElementById("sl").getAttribute("cy");

    let line1 = document.getElementById("line1");
    line1.setAttribute("x1", point1X);
    line1.setAttribute("y1", point1Y);
    line1.setAttribute("x2", point2X);
    line1.setAttribute("y2", point2Y);
}

124 thoughts on “How to create a curved SVG path between two points?”

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