MeVisLab/Standard/Sources/Shared/MLPointCloudUtils/MLMainAxisPCA/MainAxisPCA.h

Go to the documentation of this file.

// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------


#ifndef __MainAxisPCA_H
#define __MainAxisPCA_H

#include "../MLPointCloudUtilsSystem.h"
#include <mlVector3.h>

ML_START_NAMESPACE

class MLPOINTCLOUDUTILS_EXPORT MainAxisPCA
{

public:

  MainAxisPCA();

  virtual ~MainAxisPCA();

  void computeMainAxis(const std::vector<ml::Vector3>& points);    

  void getMainAxis(ml::Vector3& xAxis, ml::Vector3& yAxis, ml::Vector3& zAxis);
  void getExtension(float& xExt, float& yExt, float& zExt);

  float* getLargestMainAxis();
  float getLargestExtension();

  ml::Vector3 getBaryCenter();
  ml::Vector3 getMidPoint();


private:

  float *_xAxis, *_yAxis, *_zAxis;

  float *_baryCenter, *_midPoint;
  float _xDiameter, _yDiameter, _zDiameter;

  void getCovarianceMatrix(const float* vertices, const long size, float **covaMatrix, const float* meanVec);

  void getInverseMatrix(float** aMatrix, float** invMatrix);

  float* calcBaryCenter(const float* vertices, int size);

  float dotProduct(const float* vec1, const float* vec2);

  void getBoundingBox(const float* pointSet, const long size,     
    float& minX, float& maxX, 
    float& minY, float& maxY, 
    float& minZ, float& maxZ);

  float* stretchVector(const float* vector, const float length);

};

ML_END_NAMESPACE

#endif // __MainAxisPCA_H