tarea2_sunflower

​

void setup() {

  size(700, 700);

  //ellipseMode(CENTER);

  background(255);

  smooth();

}

//sunflower pattern

void draw(){

  patternDraw();

}

​

void patternDraw(){

  //pattern based on vogel's spiral

  //http://en.wikipedia.org/wiki/Fibonacci_number#In_nature

 stroke(100.0,0.0,100.0,50);

 //fill(100,0,100,50);

 pushMatrix();

 scale(10);

​

 float r, t;

 for (int n = 1; n<500; n++){

    r = sqrt(n);

    t = 137.5 * (PI/180) * n;

    //println(r*cos(t));

    //println(r*sin(t));

    ellipse(r*cos(t)+35, r*sin(t)+35, 3,3);

  }

 popMatrix();

}

​

​

/*

n=1:500;

r=sqrt(n);

t=137.5*pi/180*n;

plot(r.*cos(t),r.*sin(t),'o')

*/

​

​