Basis Class Reference

Simple class to store three-dimensional basis vectors. More...

#include <Basis.h>

Public Member Functions
CUDA_HOSTDEV	Basis ()
	Default to identity basis.
CUDA_HOST	Basis (const Vec3 &x0, const Vec3 &x1, const Vec3 &x2, double tol=1e-8)
	Constructor with basis vectors.
CUDA_HOSTDEV	Basis (const Vec3 &p, const Vec3 &v)
	Geocentric TCN constructor.
CUDA_HOSTDEV const Vec3 &	x0 () const
	Return first basis vector.
CUDA_HOSTDEV void	x0 (const Vec3 &x0)
	Set the first basis vector.
CUDA_HOSTDEV const Vec3 &	x1 () const
	Return second basis vector.
CUDA_HOSTDEV void	x1 (const Vec3 &x1)
	Set the second basis vector.
CUDA_HOSTDEV const Vec3 &	x2 () const
	Return third basis vector.
CUDA_HOSTDEV void	x2 (const Vec3 &x2)
	Set the third basis vecot.
CUDA_HOSTDEV Vec3	project (const Vec3 &vec) const
	Project a given vector onto basis.
void	combine (const Vec3 &vec, Vec3 &res) const
	Combine the basis with given weights.
CUDA_HOSTDEV Mat3	toRotationMatrix () const
	Convert to matrix, vectors (x0, x1, x2) as columns (0, 1, 2).

Detailed Description

Simple class to store three-dimensional basis vectors.

Constructor & Destructor Documentation

Basis() [1/2]

CUDA_HOST isce3::core::Basis::Basis ( const Vec3 & x0, const Vec3 & x1, const Vec3 & x2, double tol = 1e-8 )

inline

Constructor with basis vectors.

Input vectors which must be mutually orthogonal and have unit norm. The optional tol parameter is used to check \( \mathbf{B}^\top \mathbf{B} - \mathbf{I} = 0 \)

Basis() [2/2]

CUDA_HOSTDEV isce3::core::Basis::Basis ( const Vec3 & p, const Vec3 & v )

inlineexplicit

Geocentric TCN constructor.

Parameters

[in]	p	position vector
[in]	v	velocity vector

Member Function Documentation

combine()

void isce3::core::Basis::combine ( const Vec3 & vec, Vec3 & res ) const

inline

Combine the basis with given weights.

Parameters

[in]	vec	3D vector to use as weights
[out]	res	3D vector output

\[ res = \sum_{i=0}^2 vec[i] \cdot x_i \]

project()

CUDA_HOSTDEV Vec3 isce3::core::Basis::project ( const Vec3 & vec ) const

inline

Project a given vector onto basis.

Parameters

[in]	vec	3D vector to project
[out]	res	3D vector output

\[ res_i = (x_i \cdot vec) \]

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The documentation for this class was generated from the following file:

• /home/runner/work/isce3/isce3/cxx/isce3/core/Basis.h