POV_converter

let img, input;

let radius = 150;

let CL, LW = 2;

let pixel_size, pixel_theta;

function setup() {

  createCanvas(windowWidth,windowHeight);

  background(100);

  CL = 2*radius*PI;

  pixel_size = (CL-CL/LW)/(CL/LW)+LW;

  pixel_theta = (pixel_size/2) / radius;

  //img = loadImage("35762p.jpg");

  //image(a, 0, 0);

  //pixelDensity(3);

  //noLoop();

  input = createFileInput(handleFile);

  input.position(0, 0);

}

​

function draw() {

  background(0);

  if(img){

  image(img, 150, 50, 2*radius, 2*radius);

  noFill();

  stroke(255);

  circle(300, 200, 2*radius);

  for(let r=0; r<radius; r+=LW){

    for(let th=0; th<2*PI; th+=pixel_theta){

      fill(get(r*cos(th+pixel_theta/2)+300,r*sin(th+pixel_theta/2)+200));

      noStroke();

      push();

      translate(1*r*cos(th) + 1000, 1*r*sin(th) + 300);

      rotate(th);

      rect(0, 0, pixel_size);//(i,10));

      pop();

    }

  }

  }

}

​

function toPolar(x, y) {

  return createVector(sqrt(x*x+y*y), atan(y, x));

}

​

function toSquare(x, y) {

  return createVector(sqrt(x*x+y*y), atan(y, x));

}

​

function handleFile(file) {

  print(file);

  if (file.type === 'image') {

    img = createImg(file.data, '');

    img.hide();

  } else {

    img = null;

  }

}

​

function createPixel(r, th, color) {

  var x = r;

  var y = th;

  this.led = function() {

    fill(color);

    push();

    translate(x, y);

    rotate(th);

    //rect();

    pop();

  }

}