kadai3

​

  colorMode(RGB, 400, 400, 400);

​

  size(400, 400);

  background(400);

  //noStroke();

  stroke(400);

  //fill(0, 0, 0, 50);

  smooth();

​

  float radius = 10;

  float ra;

  int centx = width / 2;

  int centy = height / 2;

​

  //stroke(20,50,70);

  float x, y;

  float lastx = -999;

  float lasty = -999; 

​

​

  for (float ang = 0; ang <= 300; ang += 0.1) {

    radius += 0.1;

    float rad = radians(ang);

    rad = ang * 2;

    x = centx + (radius * cos(rad));

    y = centy + (radius * sin(rad));

​

​

​

    if (lastx > -999) {

​

      fill(400 - x, 400 - y, x, 300);

      ellipse( x, y, 10, 10);

    }    

    lastx = x;

    lasty = y;

  }

​

​

​

​