ompl::base::ProjectionMatrix Class Reference

A projection matrix – it allows multiplication of real vectors by a specified matrix. The matrix can also be randomly generated. More...

#include <ompl/base/ProjectionEvaluator.h>

## Public Types

using Matrix = Eigen::MatrixXd
Datatype for projection matrices.

## Public Member Functions

void computeRandom (unsigned int from, unsigned int to, const std::vector< double > &scale)
Wrapper for ComputeRandom(from, to, scale)

void computeRandom (unsigned int from, unsigned int to)
Wrapper for ComputeRandom(from, to)

void project (const double *from, Eigen::Ref< Eigen::VectorXd > to) const
Multiply the vector from by the contained projection matrix to obtain the vector to.

void print (std::ostream &out=std::cout) const
Print the contained projection matrix to a stram.

## Static Public Member Functions

static Matrix ComputeRandom (unsigned int from, unsigned int to, const std::vector< double > &scale)
Compute a random projection matrix with from columns and to rows. A vector with from elements can be multiplied by this matrix in order to produce a vector with to elements. More...

static Matrix ComputeRandom (unsigned int from, unsigned int to)
Compute a random projection matrix with from columns and to rows. A vector with from elements can be multiplied by this matrix in order to produce a vector with to elements. This uses the function above called with an empty scale vector. More...

## Public Attributes

Matrix mat
Projection matrix.

## Detailed Description

A projection matrix – it allows multiplication of real vectors by a specified matrix. The matrix can also be randomly generated.

Definition at line 122 of file ProjectionEvaluator.h.

## ◆ ComputeRandom() [1/2]

 ompl::base::ProjectionMatrix::Matrix ompl::base::ProjectionMatrix::ComputeRandom ( unsigned int from, unsigned int to )
static

Compute a random projection matrix with from columns and to rows. A vector with from elements can be multiplied by this matrix in order to produce a vector with to elements. This uses the function above called with an empty scale vector.

Each element is sampled with a Gaussian distribution with mean 0 and variance 1 and the matrix rows are made orthonormal.

Definition at line 83 of file ProjectionEvaluator.cpp.

## ◆ ComputeRandom() [2/2]

 ompl::base::ProjectionMatrix::Matrix ompl::base::ProjectionMatrix::ComputeRandom ( unsigned int from, unsigned int to, const std::vector< double > & scale )
static

Compute a random projection matrix with from columns and to rows. A vector with from elements can be multiplied by this matrix in order to produce a vector with to elements.

If the scale argument is specified, the columns of the matrix are divided by the corresponding scaling argument: all elements (rows) in column[i] are divided by scale[i]. This is useful to specify if scaling of the elements of the state is to be applied before projection. If the scale for a column is 0, the column itself is set to 0.

Each element is sampled with a Gaussian distribution with mean 0 and variance 1 and the matrix rows are made orthonormal.

Definition at line 48 of file ProjectionEvaluator.cpp.

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