How convert path point distance to real world distance?
From navigation package ,I can get the a path to the goal. but the points in the path are very close, I mean it is like: (45.0001 70.0002) , (45.0002 70.0003) ,(45.0003 70.0004) ...
and the distance between those points is very small value.
my question is : how convert this small value distance to real world distance with unit meter?
Thank you.