home Forums # Technical Support Unable to run the fuzzy logic controller linux

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    I am trying to make a fuzzy logic controller in Linux using fuzzy-lite , but i am having some difficulties.
    I have generated all binaries from source code that is .so and .a file located in bin folder. Now when i run a example by using following command
    g++ Test.cpp -Ifuzzylite -Lfuzzylite/bin -lfuzzylite

    It generate a “.o ” file which is output file

    finally when i try to run that .o file using command

    it gives me error ” ./a.out: error while loading shared libraries: libfuzzylite.so: cannot open shared object file: No such file or directory ”

    where a.out is my out file created as explained above
    Can you please help me fixing this error


    • This topic was modified 9 years, 2 months ago by Unknown.
    • This topic was modified 9 years, 2 months ago by Unknown.


    can you please try copying the libfuzzylite.so to the same folder your output file is? An alternative would be to compile using -lfuzzylite-static and forget about loading shared libraries.



    Its working ….NO error now..

    Now when i am running the a.out file its not showing any output. as shown below

    tayyab@ubuntu:~/Desktop/fuzzylite-4.0/fuzzylite$ ./a.out

    can you please explain this response, is there any file where output has been saved ?

    My main code which i am running is

    #include <fl/Headers.h>

    int main(int argc, char** argv){
    fl::Engine* engine = new fl::Engine;

    fl::InputVariable* inputVariable = new fl::InputVariable;
    inputVariable->setRange(0.000, 6.500);
    inputVariable->addTerm(new fl::Sigmoid(“A”, 0.500, -20.000));
    inputVariable->addTerm(new fl::ZShape(“B”, 0.000, 1.000));
    inputVariable->addTerm(new fl::Ramp(“C”, 1.000, 0.000));
    inputVariable->addTerm(new fl::Triangle(“D”, 0.500, 1.000, 1.500));
    inputVariable->addTerm(new fl::Trapezoid(“E”, 1.000, 1.250, 1.750, 2.000));
    inputVariable->addTerm(new fl::Rectangle(“F”, 1.750, 2.250));
    inputVariable->addTerm(fl::Discrete::create(“G”, 10, 2.000, 0.000, 2.250, 1.000, 2.500, 0.500, 2.750, 1.000, 3.000, 0.000));
    inputVariable->addTerm(new fl::Gaussian(“H”, 3.000, 0.200));
    inputVariable->addTerm(new fl::GaussianProduct(“I”, 3.500, 0.100, 3.300, 0.300));
    inputVariable->addTerm(new fl::Bell(“J”, 4.000, 0.250, 3.000));
    inputVariable->addTerm(new fl::PiShape(“K”, 4.000, 4.500, 4.500, 5.000));
    inputVariable->addTerm(new fl::SigmoidDifference(“L”, 4.750, 10.000, 30.000, 5.250));
    inputVariable->addTerm(new fl::SigmoidProduct(“M”, 5.250, 20.000, -10.000, 5.750));
    inputVariable->addTerm(new fl::Ramp(“N”, 5.500, 6.500));
    inputVariable->addTerm(new fl::SShape(“O”, 5.500, 6.500));
    inputVariable->addTerm(new fl::Sigmoid(“P”, 6.000, 20.000));

    fl::OutputVariable* outputVariable = new fl::OutputVariable;
    outputVariable->setRange(0.000, 6.500);
    outputVariable->fuzzyOutput()->setAccumulation(new fl::Maximum);
    outputVariable->setDefuzzifier(new fl::Centroid(200));
    outputVariable->addTerm(new fl::Sigmoid(“A”, 0.500, -20.000));
    outputVariable->addTerm(new fl::ZShape(“B”, 0.000, 1.000));
    outputVariable->addTerm(new fl::Ramp(“C”, 1.000, 0.000));
    outputVariable->addTerm(new fl::Triangle(“D”, 0.500, 1.000, 1.500));
    outputVariable->addTerm(new fl::Trapezoid(“E”, 1.000, 1.250, 1.750, 2.000));
    outputVariable->addTerm(new fl::Rectangle(“F”, 1.750, 2.250));
    outputVariable->addTerm(fl::Discrete::create(“G”, 10, 2.000, 0.000, 2.250, 1.000, 2.500, 0.500, 2.750, 1.000, 3.000, 0.000));
    outputVariable->addTerm(new fl::Gaussian(“H”, 3.000, 0.200));
    outputVariable->addTerm(new fl::GaussianProduct(“I”, 3.500, 0.100, 3.300, 0.300));
    outputVariable->addTerm(new fl::Bell(“J”, 4.000, 0.250, 3.000));
    outputVariable->addTerm(new fl::PiShape(“K”, 4.000, 4.500, 4.500, 5.000));
    outputVariable->addTerm(new fl::SigmoidDifference(“L”, 4.750, 10.000, 30.000, 5.250));
    outputVariable->addTerm(new fl::SigmoidProduct(“M”, 5.250, 20.000, -10.000, 5.750));
    outputVariable->addTerm(new fl::Ramp(“N”, 5.500, 6.500));
    outputVariable->addTerm(new fl::SShape(“O”, 5.500, 6.500));
    outputVariable->addTerm(new fl::Sigmoid(“P”, 6.000, 20.000));

    fl::RuleBlock* ruleBlock = new fl::RuleBlock;
    ruleBlock->setConjunction(new fl::Minimum);
    ruleBlock->setDisjunction(new fl::Maximum);
    ruleBlock->setActivation(new fl::Minimum);
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is A then AllOutputTerms is P”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is B then AllOutputTerms is O”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is C then AllOutputTerms is N”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is D then AllOutputTerms is M”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is E then AllOutputTerms is L”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is F then AllOutputTerms is K”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is G then AllOutputTerms is J”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is H then AllOutputTerms is I”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is I then AllOutputTerms is H”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is J then AllOutputTerms is G”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is K then AllOutputTerms is F”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is L then AllOutputTerms is E”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is M then AllOutputTerms is D”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is N then AllOutputTerms is C”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is O then AllOutputTerms is B”, engine));
    ruleBlock->addRule(fl::Rule::parse(“if AllInputTerms is P then AllOutputTerms is A”, engine));


    Apart from this .fld is also present in the folder

    • This reply was modified 9 years, 2 months ago by Unknown.

    Your code just creates an engine. What do you want to use the engine for? What output were you expecting?


    I want to use this fuzzy engine to give me optimized output depending on the input. How can i specify input values to this engine?

    engine->setInputValue("AllInputTerms", 5.0);

    I have the include this in the end of my code? and how i am going to see the output ?


    Yes, at the end.



    I have include that part in my code now i thinks its calculating output variable. how i am going to see the output?
    Just cout the output variable?


    Thank u very much its done…
    Your technical support is really good.

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