mirror of
https://github.com/opencv/opencv.git
synced 2024-12-05 09:49:12 +08:00
633b0e56a5
- use per-module includes instead of "opencv.hpp" - unused function warnings - undefined macro warning
110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
#include <opencv2/core.hpp>
|
|
#include <opencv2/imgproc.hpp>
|
|
#include <opencv2/highgui.hpp>
|
|
#include <opencv2/ml.hpp>
|
|
|
|
using namespace cv;
|
|
|
|
class TravelSalesman
|
|
{
|
|
private :
|
|
const std::vector<Point>& posCity;
|
|
std::vector<int>& next;
|
|
RNG rng;
|
|
int d0,d1,d2,d3;
|
|
|
|
public:
|
|
TravelSalesman(std::vector<Point> &p, std::vector<int> &n) :
|
|
posCity(p), next(n)
|
|
{
|
|
rng = theRNG();
|
|
}
|
|
/** Give energy value for a state of system.*/
|
|
double energy() const;
|
|
/** Function which change the state of system (random perturbation).*/
|
|
void changeState();
|
|
/** Function to reverse to the previous state.*/
|
|
void reverseState();
|
|
|
|
};
|
|
|
|
void TravelSalesman::changeState()
|
|
{
|
|
d0 = rng.uniform(0,static_cast<int>(posCity.size()));
|
|
d1 = next[d0];
|
|
d2 = next[d1];
|
|
d3 = next[d2];
|
|
|
|
next[d0] = d2;
|
|
next[d2] = d1;
|
|
next[d1] = d3;
|
|
}
|
|
|
|
|
|
void TravelSalesman::reverseState()
|
|
{
|
|
next[d0] = d1;
|
|
next[d1] = d2;
|
|
next[d2] = d3;
|
|
}
|
|
|
|
double TravelSalesman::energy() const
|
|
{
|
|
double e = 0;
|
|
for (size_t i = 0; i < next.size(); i++)
|
|
{
|
|
e += norm(posCity[i]-posCity[next[i]]);
|
|
}
|
|
return e;
|
|
}
|
|
|
|
|
|
static void DrawTravelMap(Mat &img, std::vector<Point> &p, std::vector<int> &n)
|
|
{
|
|
for (size_t i = 0; i < n.size(); i++)
|
|
{
|
|
circle(img,p[i],5,Scalar(0,0,255),2);
|
|
line(img,p[i],p[n[i]],Scalar(0,255,0),2);
|
|
}
|
|
}
|
|
int main(void)
|
|
{
|
|
int nbCity=40;
|
|
Mat img(500,500,CV_8UC3,Scalar::all(0));
|
|
RNG rng(123456);
|
|
int radius=static_cast<int>(img.cols*0.45);
|
|
Point center(img.cols/2,img.rows/2);
|
|
|
|
std::vector<Point> posCity(nbCity);
|
|
std::vector<int> next(nbCity);
|
|
for (size_t i = 0; i < posCity.size(); i++)
|
|
{
|
|
double theta = rng.uniform(0., 2 * CV_PI);
|
|
posCity[i].x = static_cast<int>(radius*cos(theta)) + center.x;
|
|
posCity[i].y = static_cast<int>(radius*sin(theta)) + center.y;
|
|
next[i]=(i+1)%nbCity;
|
|
}
|
|
TravelSalesman ts_system(posCity, next);
|
|
|
|
DrawTravelMap(img,posCity,next);
|
|
imshow("Map",img);
|
|
waitKey(10);
|
|
double currentTemperature = 100.0;
|
|
for (int i = 0, zeroChanges = 0; zeroChanges < 10; i++)
|
|
{
|
|
int changesApplied = ml::simulatedAnnealingSolver(ts_system, currentTemperature, currentTemperature*0.97, 0.99, 10000*nbCity, ¤tTemperature, rng);
|
|
img.setTo(Scalar::all(0));
|
|
DrawTravelMap(img, posCity, next);
|
|
imshow("Map", img);
|
|
int k = waitKey(10);
|
|
std::cout << "i=" << i << " changesApplied=" << changesApplied << " temp=" << currentTemperature << " result=" << ts_system.energy() << std::endl;
|
|
if (k == 27 || k == 'q' || k == 'Q')
|
|
return 0;
|
|
if (changesApplied == 0)
|
|
zeroChanges++;
|
|
}
|
|
std::cout << "Done" << std::endl;
|
|
waitKey(0);
|
|
return 0;
|
|
}
|