Method get

src/core/p5.Renderer.js:295–326

(x, y, w, h)

  }

  get(x, y, w, h) {
    const pd = this._pixelDensity;
    const canvas = this.canvas;

    if (typeof x === 'undefined' && typeof y === 'undefined') {
    // get()
      x = y = 0;
      w = this.width;
      h = this.height;
    } else {
      x *= pd;
      y *= pd;

      if (typeof w === 'undefined' && typeof h === 'undefined') {
      // get(x,y)
        if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
          return [0, 0, 0, 0];
        }

        return this._getPixel(x, y);
      }
    // get(x,y,w,h)
    }

    const region = new Image(w*pd, h*pd);
    region.pixelDensity(pd);
    region.canvas
      .getContext('2d')
      .drawImage(canvas, x, y, w * pd, h * pd, 0, 0, w*pd, h*pd);

    return region;
  }

  scale(x, y){