powerParametric

// tweak of sketch 208355 "math_art05"

// parametric, sin, cos, pow, rect, ellipse, map, frameCount

// mouseX adjusts the rendering.

​

float x, y, t, p, incr = .027;  

​

void setup() {

  size(550, 450);

  background(0);

}

​

void draw() { 

  fill(0, 50);

  stroke(100);

  rect(0, 0, width-1, height-1);

  translate(width/2, height/2);

  noStroke();

  fill(255, 40);

  for (int j = 0; j < 8; j++) {

    rotate(TWO_PI*(j*0.125));

    for (int i = 0; i < 800; i++) {

      x = 100 * sin(p * t/2)/pow(sin(t), 2);

      y = 100 * cos(t) * pow(cos(p * t), 4);

      ellipse(x, y, 3, 3);

      t += incr ;

      if (t >= 2) t = -2;

    }

  }

  p =  sin(frameCount *.01) * 5.05;

  incr = map(mouseX, 0, width, .004, .05);

}

​