How to divide the pork legs?

The method of pig leg segmentation:

Segmentation methods are based on the specific positions of vertebrae and ribs. First, put half of the pork flat on the operating table, then cut the tenderloin and the tenderloin attached to the hind legs with a knife, cut the pork between 5-6 ribs, then cut it from the 1 joint of the coccyx, and cut the triangular auxiliary belt in the middle. At this time, half of the pork is divided into front, middle and back sections.