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108 lines
2.3 KiB
108 lines
2.3 KiB
#include "Attractor.hpp"
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#include <iostream>
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#include <fstream>
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#include <cstdlib>
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#include <string>
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#include "stfu/stf.hpp"
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#include "AttractorKernel.hpp"
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#include "Projector.hpp"
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Attractor::Attractor(const char* const fileName) {
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// opening file
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std::cout << "Reading file " << fileName << "..." << std::endl;
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stfu::node system;
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system.read(fileName);
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stfu::node attractor = system.getChild("AttractorKernel");
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myAttractor = AttractorKernel::createAttractorKernel(attractor);
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}
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Attractor::~Attractor(){
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delete myAttractor;
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}
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// this should probably done in the projector section
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void Attractor::init_range() {
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// stabilize attractor
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for ( unsigned int i = 0; i < 100000; i++ ) {
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iterate();
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}
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// initialize projectors with dimension and first point
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const unsigned int dimension = myAttractor->getDimension();
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const double * point = myAttractor->vector();
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for ( std::vector<Projector*>::iterator it = projectors.begin(); it != projectors.end(); it++ ) {
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(*it)->extern_dim = dimension;
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(*it)->intern_dim = 2;
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(*it)->init(point);
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}
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// update ranges
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for ( unsigned int i = 0; i < 100000; i++ ) {
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iterate();
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for ( std::vector<Projector*>::iterator it = projectors.begin(); it != projectors.end(); it++ ) {
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(*it)->update_range(point);
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}
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}
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for ( std::vector<Projector*>::iterator it = projectors.begin(); it != projectors.end(); it++ ) {
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(*it)->finish_range();
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}
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}
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bool Attractor::is_chaos() {
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/*
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check existence of attractor:
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Escaping
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Single point attractor
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Lyapunov exponent
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*/
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/*
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double sum = 0;
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for ( unsigned int i = 0; i < dim; i++ ) {
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const double dist = 0; //new_point[i] - point[i];
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sum += dist*dist;
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}
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if ( sum >= 1.0e7 ) {
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// big change => Escaping
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return false;
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}
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if ( sum <= 1.0e-7 ) {
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// small change => singularity
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return false;
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}
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return true;
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*/
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return true;
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}
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void Attractor::iterate() {
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(*myAttractor)();
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}
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void Attractor::plot() {
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for ( std::vector<Projector *>::iterator it = projectors.begin(); it != projectors.end(); it++ ) {
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const double * point = myAttractor->vector();
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(*it)->plot(point);
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}
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}
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/*
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IO & control
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*/
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void Attractor::output() {
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const unsigned int dimension = myAttractor->getDimension();
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const double * point = myAttractor->vector();
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for ( unsigned int i = 0; i < dimension; i++ ) {
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std::cout << point[i] << " ";
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}
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std::cout << std::endl;
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}
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