Robot Mapping in Line Following

[arigid]

I Was looking on how to map the path a bot covers during line following,

It like for a local competition in which bot has to reach a final path and then come back through the shortest path.
This is just a video i found on the net which is the algo i am looking for.
Can anyone please suggest an algorithm or Program for same,
Also i would be trying to make this on Arduino , thanks! 

[siddharth3141]

Hi, I have faced a similar problem when I took part in a robotics event in the neighborhood. Here is a post that can help you. http://embedjournal.com/2013/06/shortest-path-line-follower-robot-logic-revealed/