Eigs.H File Reference

Handle Eigenvalue translation to-from matrix, polar, and xyz coords. More...

#include <gsl/gsl_eigen.h>
#include <vector>

Go to the source code of this file.

Classes
class	S_Engine
	Engine to pass in s values and retrieve eigen parameters in different formats. More...
Enumerations
enum	EigsEnum { KMAX = 1, KINT = 2, KMIN = 3 }
Functions
size_t	GetIndex (const EigsEnum which, const gsl_vector *v)
	Used to pick out the index for Vmax/Tmax, Vint/Tint, Vmin/Tmin. Meant just to be a helper.
bool	GetEig (const EigsEnum which, const gsl_matrix *eigenvecs, const gsl_vector *eigenvals, float vec[3], float &val)
	Pick out a particular eigen vector/value.
bool	GetEigs (const gsl_matrix *eigenvec, const gsl_vector *eigenval, float newEigs[9])
	Fill a lisa style eigen vector array. see s_eigs.

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Detailed Description

Handle Eigenvalue translation to-from matrix, polar, and xyz coords.

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Enumeration Type Documentation

enum EigsEnum

Use K when you don't know if they are talking about value or vector. Otherwise use Vmax, Vint, Vmin for eigen VECTORS or Tmax, Tint, Tmin for tau/eigen VALUES Enumerator: KMAX  KINT  KMIN

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Function Documentation

bool GetEig (  const EigsEnum  which, const gsl_matrix *  eigenvecs, const gsl_vector *  eigenvals, float  vec[3], float &  val )

Pick out a particular eigen vector/value. Parameters: which  KMIN, KINT, KMAX eigenvecs  Precomputed eigen vectors. Use gsl_eigensymmv eigenvals  Precomputed eigen values. Use gsl_eigensymmv vec  Return array for the eigen vector val  Return the eigen value. Should be less than 1!!! (t1+t2+t3 == 1.0) Returns: should someday return false if got a bad param The eigen parameters are unsorted when computed, so the min could be first, second, or third. Use this to grab the data out of the gsl data structures for the eigen parameters you want.

bool GetEigs (  const gsl_matrix *  eigenvec, const gsl_vector *  eigenval, float  newEigs[9] )

Fill a lisa style eigen vector array. see s_eigs. Parameters: eigenvec  Unsorted eigen vector. They are in the order of the eigen values eigenval  Unsorted eigen values newEigs  Store the values here are Tmin, DECmin, INCmin, Tint, DECint, INCint, Tmax, DECmax, INCmax Returns: false if there was some sort of problem. true on success Has to sort through the eigenvals to figure out the order of min, int, and max

size_t GetIndex (  const EigsEnum  which, const gsl_vector *  v )

Used to pick out the index for Vmax/Tmax, Vint/Tint, Vmin/Tmin. Meant just to be a helper.

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