isCircleInPath.js

function isCircleInPath(circleData, path) {
  const ctx = document.createElement("canvas").getContext("2d");
  const radius = circleData.radius;
  for (
    let x = circleData.x - radius;
    x <= circleData.x + 2 * radius;
    x += radius
  ) {
    for (
      let y = circleData.y - radius;
      y <= circleData.y + 2 * radius;
      y += radius
    ) {
      if (ctx.isPointInPath(path, x, y)) return true;
    }
  }
  return false;
}