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101 lines
2.0 KiB
101 lines
2.0 KiB
#include "Attractor.hpp"
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#include "Logger.hpp"
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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 std::string& filename) : kernel(0), projector(0) {
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// opening file
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LogInfo("Reading file '%s'...\n", filename.c_str());
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stfu::node system;
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system.read(filename.c_str());
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kernel = AttractorKernel::createAttractorKernel(system.getChild("AttractorKernel"));
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projector = Projector::createProjector(system.getChild(system.getChild("Projector")), system);
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}
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Attractor::~Attractor(){
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delete kernel;
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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 projector with dimension and first point
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const unsigned int dimension = kernel->getDimension();
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const double * point = kernel->vector();
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projector->extern_dim = dimension;
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projector->intern_dim = 3;
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projector->init(point);
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// update ranges
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for ( unsigned int i = 0; i < 500000; i++ ) {
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iterate();
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projector->update_range(point);
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}
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projector->finish_range();
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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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(*kernel)();
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}
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void Attractor::plot() {
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const double * point = kernel->vector();
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projector->plot(point);
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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 = kernel->getDimension();
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const double * point = kernel->vector();
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for ( unsigned int i = 0; i < dimension; i++ ) {
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LogMoreInfo("%f, ", point[i]);
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}
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LogMoreInfo("\n");
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}
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