Javascript 如何使用JS创建点地图

如何创建高密度点贴图？我已经修改了一些基本算法，可以在矩形周围散布点，如下所示：

 var createOrangeDots = function () {  
  for (var i = 0; i <=orangeNum; i++) {
    context.beginPath();
    var rand_x = Math.random(i) * horz_max;
    var rand_y = Math.random(i) * vertical_max;
    context.arc(rand_x, rand_y, radius, 1, 2*Math.PI);
    context.fillStyle ="orange";
    context.fill();
    context.closePath();
    }
  }

var createOrangeDots=function（）{
对于（var i=0；i
var createOrangeDotsCircle = function () {
  for (var i = 0; i <= orangeCircleNum; i++) {
    context.beginPath();
    const dist = (Math.random() ** centripetal) * distFromCenter;
    const angle = Math.random() * Math.PI * 2;
    var rand_x = dist * Math.cos(angle) + centerOrange.x;
    var rand_y = dist * Math.sin(angle) + centerOrange.y;
    context.arc(rand_x, rand_y, radius, 1, 2 * Math.PI);
    context.fillStyle ="orange";
    context.fill();
    context.closePath();
  }  
}
createOrangeDotsCircle();