Radius & Angle

const markerAngles = Array(8).fill(0).map((n, i) => i * 360 / 8)
const markerIds = markerAngles.map(a => 'marker-' + a)

const pointAngles = Array(50).fill(0).map((n, i) => i * 360 / 50)
const pointIds = pointAngles.map(a => 'point-' + a)

const initNode = canvas.node(1).add({
    size: 80,
    color: 'transparent',
    svgattrs: { stroke: 'gray' },
    labels: { 0: { remove: true } }
})

initNode.labels(markerIds).data(markerAngles).add({
    text: a => a,
    angle: a => a,
})
initNode.labels(pointIds).data(pointAngles).add({
    text: 'o',
    angle: a => a,
    radius: 0,
    color: 'red'
})

canvas.pause(0.5)
for (let k = 1; k < 5; k++) {
    canvas.node(1).labels(pointIds)
        .data(pointAngles)
        .radius(a => Math.cos(k * a * Math.PI / 180) * 60)
    canvas.pause(1)
}