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#ifndef PROJECTIONOBSERVER_H
#define PROJECTIONOBSERVER_H
#include <QObject>
#include <armadillo>
class ProjectionObserver
: public QObject
{
Q_OBJECT
public:
static const int OBSERVER_CURRENT = 0;
static const int OBSERVER_DIFF_PREVIOUS = 1;
static const int OBSERVER_DIFF_ORIGINAL = 2;
ProjectionObserver(const arma::mat &X, const arma::uvec &cpIndices);
signals:
void valuesChanged(const arma::vec &values) const;
void cpValuesChanged(const arma::vec &values) const;
void rpValuesChanged(const arma::vec &values) const;
void valuesRewound(const arma::vec &values) const;
void cpValuesRewound(const arma::vec &values) const;
void rpValuesRewound(const arma::vec &values) const;
public slots:
void setMap(const arma::mat &Y);
bool setType(int type);
void setCPSelection(const std::vector<bool> &cpSelection);
void setRPSelection(const std::vector<bool> &rpSelection);
void setRewind(double t);
private:
bool emitValuesChanged() const;
int m_type;
arma::mat m_X, m_Y, m_origY, m_prevY;
arma::mat m_distX, m_distY, m_origDistY, m_prevDistY;
arma::uvec m_cpIndices, m_rpIndices;
bool m_cpSelectionEmpty, m_rpSelectionEmpty;
std::vector<int> m_cpSelection, m_rpSelection;
// alpha(i, j): the influence CP j has on RP i
void computeAlphas();
arma::mat m_alphas, m_influences;
// TODO: one per implemented measure
arma::vec m_values, m_prevValues, m_origValues;
};
#endif // PROJECTIONOBSERVER_H
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