Guidance system with navigation point correction

A system comprising:

• a mobile machine including three or more portions, each of the portions configured to shift relative to each of the other portions;
• a positioning receiver coupled with one of the three or more portions of the mobile machine;
• one or more sensors for determining the relative positions of the three or more portions of the mobile machine;
• and
• one or more computing devices configured to
• use information from the positioning receiver to determine a geographic location of the positioning receiver,
• use information from the one or more sensors to determine the relative positions of the three or more portions of the mobile machine, and
• adjust a navigation point offset according to the relative positions of the three or more portions of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point.

A method comprising:

• automatically determining a geographic location of a positioning receiver, the positioning receiver being coupled with a first portion of a mobile machine;
• automatically determining a position of the first portion of the mobile machine relative to the second portion of the mobile machine;
• automatically adjusting a navigation point offset according to the position of the first portion of the mobile machine relative to the second portion of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point;
• and
• automatically guiding the mobile machine using the navigation point.