led-canvas-matrix/lib/getBounds.js

Matrix Class providing basic data structures for led-canvas and led-canvas-text

"use strict";

function getBounds(leds) {
  var xBuffer = leds.map(function (led) {
    return led.x;
  });
  var yBuffer = leds.map(function (led) {
    return led.y;
  });

  var x = Math.min.apply(Math, xBuffer);
  var y = Math.min.apply(Math, yBuffer);

  var width = Math.max.apply(Math, xBuffer) - x + 1;
  var height = Math.max.apply(Math, yBuffer) - y + 1;
  var length = width * height;

  return { x: x, y: y, width: width, height: height, length: length };
}

module.exports = getBounds;