Geometric Animations / 170228

float t;

float theta, theta2;

int maxFrameCount = 150;

float numRot = 25;

float numOne = 50;

float numTwo = 150;

​

int a = 49;

int b = 44;

​

void setup() {

  size(540, 540, P2D);

  noFill();

  strokeJoin(ROUND);

  strokeCap(ROUND);

  frameRate(30);

}

​

void draw() {

  background(100,120,120);

  translate(width/2, height/2);

​

  t = (float)frameCount/maxFrameCount;

  theta = TWO_PI*t;

  theta2 = TWO_PI*t*2;

​

  for ( int x= -300; x <= 300; x+= 5) {

​

    float offSet = (x*a); 

    float offSetRot = (x*b); 

    float sz1 = map(sin(-theta+offSet), -1, 1, -numOne, numOne);

    float sz2 = map(cos(-theta2+offSet), -1, 1, -numTwo, numTwo);

    float rotValue = map(sin(-theta+offSetRot), -1, 1, numRot, -numRot);

​

    stroke(255,220,240);

    strokeWeight(2);

    shapes(x,0, sz1, sz2, rotValue);

​

  }

​

}

​

​

void shapes(float xPos, float yPos, float s1, float s2, float rot) {

  pushMatrix();

  translate(xPos, yPos);

  rotate(TWO_PI*(rot/200));

  quad( 0+numOne, 0+numOne, s2, 0, 0-numOne, 0-numOne, 0, s1);     

​

  popMatrix();

}