EigenDecomposition.h

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// EigenDecomposition.h:
// ---------------------
//

#ifndef __IPSDKMATH_EIGENDECOMPOSITION_H__
#define __IPSDKMATH_EIGENDECOMPOSITION_H__

#include <IPSDKMath/IPSDKMathExports.h>
#include <IPSDKMath/LinearAlgebra/LinearAlgebraTypes.h>
#include <IPSDKUtil/InstructionSet/InstructionSetTypes.h>

namespace ipsdk {
namespace math {


IPSDKMATH_API void
eigenDecomposition(const ipReal64 mXX, const ipReal64 mXY, const ipReal64 mYY,
                   ipReal64& lambdaMin, ipReal64& lambdaMax, ipReal64& theta);

template <typename T>
IPSDKMATH_API void
eigenDecomposition(const T mXX, const T mXY, const T mXZ,
                   const T mYY, const T mYZ, const T mZZ,
                   T& lambdaMin, T& lambdaInter, T& lambdaMax,
                   T& vMinX, T& vMinY, T& vMinZ,
                   T& vInterX, T& vInterY, T& vInterZ,
                   T& vMaxX, T& vMaxY, T& vMaxZ);
template <typename T>
IPSDKMATH_API void
eigenDecomposition(const T mXX, const T mXY, const T mXZ,
                   const T mYY, const T mYZ, const T mZZ,
                   T& lambdaMin, T& lambdaInter, T& lambdaMax,
                   T& chi, T& beta, T& alpha);

IPSDKMATH_API ipUInt32
eigenDecomposition(const Matrix& mat,
                   Vector& eigenValues, Matrix& eigenVectors);

IPSDKMATH_API void
eigenPartialDecomposition(const Matrix& mat,
                          Vector& eigenValues, Matrix& eigenVectors);


} // end of namespace math
} // end of namespace ipsdk

#endif // __IPSDKMATH_EIGENDECOMPOSITION_H__