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A* ALGORITHM BASICS FOR PATH FINDING & HEURISTICS METHODS : ARTIFICIAL INTELLIGENCE

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 A* ALGORITHM BASICS FOR PATH FINDING A* , widely used  known form of best-first search & path planning algorithm nowadays in mobile robots,games. this is the function for A*,                                     f(n) = g(n) + h(n) g ( n ) is the cost of the path from the start node to n , and h ( n ) is a heuristic function that estimates the cost of the cheapest path from n to the goal This will find cheapest f(n) value in neighbor nodes to archive goal node. check below image  A to B path finding with g(n),h(n),f(n) value In the final level check below image Now we will check the Algorithm // A* Search Algorithm 1. Initialize the open list 2. Initialize the closed list put the starting node on the open list (you can leave its f at zero) 3. ...
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Create ROS Package

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Hi let see how to create ros package
package createing command eg :

catkin_create_pkg  <pkg_name>  [depend1]  [depend2] ...

catkin_create_pkg :- this is a keyword to create pkg
pkg_name :- u have to choose ur pkg name
depend : it means ur pkg depend in what.

for a eg if u like to do ur programming in python u need to add depend as rospy
like wise
 python --> rospy
 c++      --> roscpp
msge    --> std_msgs

lets create one sample pkg name call robin.
First  u need to go catkin Dir.
then u need to go src folder .bcz all pkgs located inside.
u have to create ur pkg inside the folder

copy& paste in ur terminal

catkin_create_pkg robin rospy roscpp std_msge

output :-

Created file robin/CMakeLists.txt
Created file robin/package.xml
Created folder robin/include/robin
Created folder robin/src
Successfully created files in /home/robinrobotics/catkin_ws/src/robin. Please adjust the values in package.xml.

in this folder if u like to add c++ codeing file. u need to add --> robin/src
python codeing file ---> srcipt
 u need to create the srcipt folder  inside robin pkg folder

okey  guys we will see in next video

how to Customizing the CMakeLists.txt & run first programming in ros in python, c++.
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A* ALGORITHM BASICS FOR PATH FINDING & HEURISTICS METHODS : ARTIFICIAL INTELLIGENCE

By
 A* ALGORITHM BASICS FOR PATH FINDING A* , widely used  known form of best-first search & path planning algorithm nowadays in mobile robots,games. this is the function for A*,                                     f(n) = g(n) + h(n) g ( n ) is the cost of the path from the start node to n , and h ( n ) is a heuristic function that estimates the cost of the cheapest path from n to the goal This will find cheapest f(n) value in neighbor nodes to archive goal node. check below image  A to B path finding with g(n),h(n),f(n) value In the final level check below image Now we will check the Algorithm // A* Search Algorithm 1. Initialize the open list 2. Initialize the closed list put the starting node on the open list (you can leave its f at zero) 3. ...
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How to compile C++ file in ROS environment

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let see how make one c++ file as executable or make it compile in ros environment let create one package call test so we will add test1.cpp to compile, then we have to change in 3 place in cmakelist.txt file here test1.cpp we named this executable as test1   add_executable(test1 src/test1.cpp)    add_dependencies(test1 ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})    target_link_libraries(test1    ${catkin_LIBRARIES}  )  these r the main changes we need to do in cmakelist. if we need to add another c++ file then let see  that's all lets compile for more details just check below video
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