'A helper method for pixel-based image generators that specifies the
four pixel coordinates for a single rect.'

def pixel_box(self, row, col):

    x = ((col + self.border) * self.box_size)
    y = ((row + self.border) * self.box_size)
    return [(x, y), (((x + self.box_size) - 1), ((y + self.box_size) - 1))]
