Adding "Fixed" Points

Fixed intermediate points effectively form a fixed end to the adjacent sections, and this would be unusual in the case of a normal lap and diagonal 3 point belt.

However, as this example shows, were you to create a full four or five point harness you would have to do this in two or three separate belt fitting operations, each meeting at a common point at the centre of the abdomen.

This picture shows how you might create the lap section with the fixed point #3 forming the buckle. The two shoulder belts would be added by a similar process, also meeting at the node used for point #3.