Mimi Yin NYU-ITP

Polar Roses

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// Store current and previous x,y coordinates

let x, y;

let px, py;

​

// Angle

let a;

// Angle speed: How quickly we're circling

let aspeed;

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// How quickly we're circling vertically versus horizontally

let yfreq;

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// Size of circle (radius)

let range;

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// Verticality of circle

let yscl;

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// Center of circle

let centerX, centerY;

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function setup() {

  createCanvas(windowWidth, windowHeight);

​

  angle = 0;

  aspeed = 0.01;

  yfreq = 1.2;

​

  range = width/2;

  yscl = 1;

​

  centerX = width/2;

  centerY = height/2;

​

  background(255);

}

​

function draw() {

  background(255, 5);

  angle += aspeed;

​

  //Move

  // x = cos(angle)*range + centerX;

  // y = sin(angle*yfreq)*range*yscl + centerY;

  /////////////////////////////////////////////////////////

  /////////////////////////////////////////////////////////

  ///////////////////////POLAR ROSES///////////////////////

  /////////////////////////////////////////////////////////

  /////////////////////////////////////////////////////////

​

  // // Spiral

  // range += 0.1;

  // x = cos(angle)*range + centerX;

  // y = sin(angle*yfreq)*range*yscl + centerY;

  //

  // // Straight line

  // x = cos(angle)*range*cos(angle) + centerX;

  // y = sin(angle*yfreq)*range*yscl*sin(angle) + centerY;

  //

  // // Circular squares

  // x = cos(sin(angle)*angle)*range + centerX;

  // y = sin(cos(angle)*angle*yfreq)*range*yscl + centerY;

  //

  // // Just a circle, sorta

  // x = cos(cos(angle)*angle)*range + centerX;

  // y = sin(cos(angle)*angle*yfreq)*range*yscl + centerY;

​

  // // Inny - Outy

  //x = cos(sin(angle)*angle)*range*sin(angle)+ centerX;

  //y = sin(cos(angle)*angle*yfreq)*range*yscl*cos(angle)+ centerY;

​

  // Bigger sweeps with tan

  x = cos(sin(angle)*angle)*tan(angle)*range + centerX;

  y = sin(cos(angle)*angle*yfreq)*tan(angle)*range*yscl + centerY;

​

  // x = cos(sin(angle)*angle)*tan(angle)*range + centerX;

  // y = sin(cos(angle)*angle*yfreq)*range*yscl*tan(angle) + centerY;

​

  // Traversing by tan()ing centerX

  // Alternating horizontal curves with straight darts

  // x = cos(angle)*range*sin(angle) + centerX*tan(angle);

  // y = sin(cos(angle)*angle*yfreq)*range*yscl*cos(angle) + centerY;

    // Draw line

  stroke(0);

  strokeWeight(3);

  if(px) line(px, py, x, y);

  // Remember x,y coordinates for next frame

  px = x;

  py = y;

  //aspeed = map(mouseX, 0, width, 0, 0.1);

}

​

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