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Implementation and visualization of RRT and RRTstar algorithms

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RRT-RRTstar

Implementation and visualization of RRT and RRT* algorithms

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Run python scripts for each algorithm

python3 ./RRT.py

python3 ./RRT_STAR.py

Double click once to select start node, twice to select goal node.

Shut down and re-run the script for another test.

Tuning

  • 4 example images are provided for test, you can specify which image to use in RRT/RRTstar class param "map_name".

  • Start and goal nodes can also be hard coded and passed to RRT/RRTstar class.

  • Maximum iteration (default 10000) and step size (default 10) can also be tuned.

  • Radius param for RRTstar class is to specify the circular region around new random node where nodes' shortest cost and parent may be updated.

  • Try_goal param being enabled will speed up goal search, which terminates if new random node can connect to goal with no collision.

  • Path smoothing is by default enabled, and the smoothened path will show in a different color with the raw path.

Thanks to

https://gist.github.com/Fnjn/58e5eaa27a3dc004c3526ea82a92de80

https://github.com/nimRobotics/RRT

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