Clustering.h

#pragma once
#include "GLM/gtx.hpp"
#include "GLM/gtc.hpp"
#include "GLM/gtx/type_ptr.hpp"

#include "linalg.h"
#include "solvers.h"

#include <QColor>
#include <QtConcurrentRun>
#include <QFuture>
#include <QFutureWatcher>

// system includes
#include <fstream>
#include <iostream>

class Clustering
{
public:
        Clustering(void);
        ~Clustering(void);

        static void Eigen(glm::mat2& rvec, glm::vec2& rval, glm::mat2 covariance);
        static void SVD(glm::vec2& rw, glm::mat2& ru, glm::mat2& rvt, glm::mat2 covariance);
        static float getDensity(glm::vec2 pos, glm::vec2 mean, glm::mat2 covariance);
        static glm::mat2 CalculateCovariance(glm::vec2 radii, float phi);
        static void kMeans(glm::vec2** x, glm::vec2* m, float* numComponents, float** g, int N, int K, int Iterations);
        static void DoClustering(glm::vec2* m, glm::mat2* c, glm::vec2* x, int N, int K);

        static glm::vec4* CalculateTFTexture(glm::vec2* m, glm::mat2* covariance, glm::vec4* color);
};