Code table navigation route generation method and code table

The invention provides a code table navigation route generation method and a code table, and the method comprises the steps: reading an original route file in the code table, equally dividing the original route into a predetermined number of road points according to distances, and adding vector information to all the road points; calculating a vector angle between adjacent waypoints, if the vector angle between the adjacent waypoints is greater than a preset value, inserting a middle waypoint between the adjacent waypoints, and continuing to calculate the vector angle between the inserted adjacent waypoints for waypoint insertion until the vector angle between the adjacent waypoints is less than the preset value; and acquiring the current GPS position of the code table, acquiring all road points within a certain distance range of the current position of the code table, deleting the road points in the same direction through a greedy algorithm, and drawing a navigation route according to the remaining road poin