test

int num = 20;
//int steps = 120;
float theta; //, r;
int maxFrameCount = 120;
float t;

void setup() {
  size(500, 500);
  //frameRate(25);
}


void draw() {
  background(255);
  t = (float)frameCount/maxFrameCount;
  theta = TWO_PI*t;
  translate(width/2, height/2);
  pushMatrix();
  rotate(theta/num);
  for (int i=0; i<num; i++) {
    pushMatrix();
    float offSet = TWO_PI/num*i;
    rotate(offSet);
    float sz = map(sin(theta+offSet), -1, 1, 5, 40);
    ellipse(150, 0, sz, sz);
    popMatrix();
  }
  popMatrix();
  if (frameCount%1==0 && t<=1) saveFrame("image-###.gif");
}