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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. while the open list is not empty a) find the node with the least f on the open list, call it "q" b) pop q off the open list c) generate q's 8 successors
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libga.a(garandom.o): relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC:ARGOS simulator

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for this go to galib-master.zip folder dir
if u dont have galib-master.zip then
just download galib-master.zip file below link
https://github.com/Robinroy-peter/swarmRobots   
then
open terminal inside first of all type below commands to remove galib previous compile
sudo make uninstall
sudo make clean

then open makevars file inside the galib-master.zip ,
add -fPIC  with CXXFLAGS    = -g -Wall -fPIC  like that

then copile it again with below commands
make
sudo make install 

Then go to argos-example folder try to compile it
follow below video guide if u need more information



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