On leaf number $page:
$ t = (par['t'] / scale) - ypadding $ r = (par['r'] / scale) + xpadding $ b = (par['b'] / scale) + ypadding $ l = (par['l'] / scale) - xpadding $ width = r - l $ height = b - t $ halfWidth = par['page_width'] * .5
$if ia.endswith('goog'):
$else:
$for box in par['boxes']:
$if 'r' not in box:
$continue
$ box_num = box_num + 1
_s$(scale).jpg)
_s$(scale).jpg)