RandomSample applies a random sampling with uniform probability. More...

#include <pcl/filters/random_sample.h>

Inheritance diagram for pcl::RandomSample< PointT >:

Collaboration diagram for pcl::RandomSample< PointT >:

Public Types
typedef boost::shared_ptr < Filter< PointT > >	Ptr

typedef boost::shared_ptr < const Filter< PointT > >	ConstPtr

typedef PointIndices::Ptr	PointIndicesPtr

typedef PointIndices::ConstPtr	PointIndicesConstPtr

Public Member Functions
	RandomSample ()
	Empty constructor. More...

void	setSample (unsigned int sample)
	Set number of indices to be sampled. More...

unsigned int	getSample ()
	Get the value of the internal sample parameter. More...

void	setSeed (unsigned int seed)
	Set seed of random function. More...

unsigned int	getSeed ()
	Get the value of the internal seed parameter. More...

void	filter (PointCloud &output)

void	filter (std::vector< int > &indices)
	Calls the filtering method and returns the filtered point cloud indices. More...

void	setNegative (bool negative)
	Set whether the regular conditions for points filtering should apply, or the inverted conditions. More...

bool	getNegative ()
	Get whether the regular conditions for points filtering should apply, or the inverted conditions. More...

void	setKeepOrganized (bool keep_organized)
	Set whether the filtered points should be kept and set to the value given through setUserFilterValue (default: NaN), or removed from the PointCloud, thus potentially breaking its organized structure. More...

bool	getKeepOrganized ()
	Get whether the filtered points should be kept and set to the value given through setUserFilterValue (default = NaN), or removed from the PointCloud, thus potentially breaking its organized structure. More...

void	setUserFilterValue (float value)
	Provide a value that the filtered points should be set to instead of removing them. More...

IndicesConstPtr const	getRemovedIndices ()
	Get the point indices being removed. More...

virtual void	setInputCloud (const PointCloudConstPtr &cloud)
	Provide a pointer to the input dataset. More...

PointCloudConstPtr const	getInputCloud ()
	Get a pointer to the input point cloud dataset. More...

void	setIndices (const IndicesPtr &indices)
	Provide a pointer to the vector of indices that represents the input data. More...

void	setIndices (const IndicesConstPtr &indices)
	Provide a pointer to the vector of indices that represents the input data. More...

void	setIndices (const PointIndicesConstPtr &indices)
	Provide a pointer to the vector of indices that represents the input data. More...

void	setIndices (size_t row_start, size_t col_start, size_t nb_rows, size_t nb_cols)
	Set the indices for the points laying within an interest region of the point cloud. More...

IndicesPtr const	getIndices ()
	Get a pointer to the vector of indices used. More...

const PointT &	operator[] (size_t pos)
	Override PointCloud operator[] to shorten code. More...

Detailed Description

template<typename PointT>
class pcl::RandomSample< PointT >

RandomSample applies a random sampling with uniform probability.

Based off Algorithm A from the paper "Faster Methods for Random Sampling" by Jeffrey Scott Vitter. The algorithm runs in O(N) and results in sorted indices http://www.ittc.ku.edu/~jsv/Papers/Vit84.sampling.pdf

Author: Justin Rosen

Definition at line 56 of file random_sample.h.

Member Typedef Documentation

template<typename PointT>

typedef boost::shared_ptr< const Filter<PointT> > pcl::Filter< PointT >::ConstPtr

inherited

Definition at line 76 of file filter.h.

template<typename PointT>

typedef PointIndices::ConstPtr pcl::PCLBase< PointT >::PointIndicesConstPtr

inherited

Definition at line 79 of file pcl_base.h.

template<typename PointT>

typedef PointIndices::Ptr pcl::PCLBase< PointT >::PointIndicesPtr

inherited

Definition at line 78 of file pcl_base.h.

template<typename PointT>

typedef boost::shared_ptr< Filter<PointT> > pcl::Filter< PointT >::Ptr

inherited

Definition at line 75 of file filter.h.

Constructor & Destructor Documentation

template<typename PointT >

pcl::RandomSample< PointT >::RandomSample ( )

inline

Empty constructor.

Definition at line 69 of file random_sample.h.

Member Function Documentation

template<typename PointT>

void pcl::FilterIndices< PointT >::filter ( PointCloud & output)

inlineinherited

Definition at line 92 of file filter_indices.h.

template<typename PointT>

void pcl::FilterIndices< PointT >::filter ( std::vector< int > & indices)

inlineinherited

Calls the filtering method and returns the filtered point cloud indices.

Parameters

[out] indices the resultant filtered point cloud indices

Definition at line 101 of file filter_indices.h.

template<typename PointT>

IndicesPtr const pcl::PCLBase< PointT >::getIndices ( )

inlineinherited

Get a pointer to the vector of indices used.

Definition at line 190 of file pcl_base.h.

template<typename PointT>

PointCloudConstPtr const pcl::PCLBase< PointT >::getInputCloud ( )

inlineinherited

Get a pointer to the input point cloud dataset.

Definition at line 107 of file pcl_base.h.

template<typename PointT>

bool pcl::FilterIndices< PointT >::getKeepOrganized ( )

inlineinherited

Get whether the filtered points should be kept and set to the value given through setUserFilterValue (default = NaN), or removed from the PointCloud, thus potentially breaking its organized structure.

Returns: The value of the internal keep_organized_ parameter; false = remove points (default), true = redefine points, keep structure.

Definition at line 145 of file filter_indices.h.

template<typename PointT>

bool pcl::FilterIndices< PointT >::getNegative ( )

inlineinherited

Get whether the regular conditions for points filtering should apply, or the inverted conditions.

Returns: The value of the internal negative_ parameter; false = normal filter behavior (default), true = inverted behavior.

Definition at line 125 of file filter_indices.h.

template<typename PointT>

IndicesConstPtr const pcl::FilterIndices< PointT >::getRemovedIndices ( )

inlineinherited

Get the point indices being removed.

Returns: The value of the internal negative_ parameter; false = normal filter behavior (default), true = inverted behavior.

Definition at line 164 of file filter_indices.h.

template<typename PointT >

unsigned int pcl::RandomSample< PointT >::getSample ( )

inline

Get the value of the internal sample parameter.

Definition at line 86 of file random_sample.h.

template<typename PointT >

unsigned int pcl::RandomSample< PointT >::getSeed ( )

inline

Get the value of the internal seed parameter.

Definition at line 103 of file random_sample.h.

template<typename PointT>

const PointT& pcl::PCLBase< PointT >::operator[] ( size_t pos)

inlineinherited

Override PointCloud operator[] to shorten code.

Note: this method can be called instead of (*input_)[(*indices_)[pos]] or input_->points[(*indices_)[pos]]

Parameters

pos	position in indices_ vector

Definition at line 197 of file pcl_base.h.

template<typename PointT>

void pcl::PCLBase< PointT >::setIndices ( const IndicesPtr & indices)

inlineinherited

Provide a pointer to the vector of indices that represents the input data.

Parameters

indices a pointer to the vector of indices that represents the input data.

Definition at line 113 of file pcl_base.h.

template<typename PointT>

void pcl::PCLBase< PointT >::setIndices ( const IndicesConstPtr & indices)

inlineinherited

Provide a pointer to the vector of indices that represents the input data.

Parameters

indices a pointer to the vector of indices that represents the input data.

Definition at line 124 of file pcl_base.h.

template<typename PointT>

void pcl::PCLBase< PointT >::setIndices ( const PointIndicesConstPtr & indices)

inlineinherited

Provide a pointer to the vector of indices that represents the input data.

Parameters

indices a pointer to the vector of indices that represents the input data.

Definition at line 135 of file pcl_base.h.

template<typename PointT>

void pcl::PCLBase< PointT >::setIndices	(	size_t	row_start,
		size_t	col_start,
		size_t	nb_rows,
		size_t	nb_cols
	)

inlineinherited

Set the indices for the points laying within an interest region of the point cloud.

Note: you shouldn't call this method on unorganized point clouds!

Parameters

row_start	the offset on rows
col_start	the offset on columns
nb_rows	the number of rows to be considered row_start included
nb_cols	the number of columns to be considered col_start included

Definition at line 151 of file pcl_base.h.

template<typename PointT>

virtual void pcl::PCLBase< PointT >::setInputCloud ( const PointCloudConstPtr & cloud)

inlinevirtualinherited

Provide a pointer to the input dataset.

Parameters

cloud the const boost shared pointer to a PointCloud message

Reimplemented in pcl::PCA< PointT >.

Definition at line 103 of file pcl_base.h.

template<typename PointT>

void pcl::FilterIndices< PointT >::setKeepOrganized ( bool keep_organized)

inlineinherited

Set whether the filtered points should be kept and set to the value given through setUserFilterValue (default: NaN), or removed from the PointCloud, thus potentially breaking its organized structure.

Parameters

[in] keep_organized false = remove points (default), true = redefine points, keep structure.

Definition at line 135 of file filter_indices.h.

template<typename PointT>

void pcl::FilterIndices< PointT >::setNegative ( bool negative)

inlineinherited

Set whether the regular conditions for points filtering should apply, or the inverted conditions.

Parameters

[in] negative false = normal filter behavior (default), true = inverted behavior.

Definition at line 116 of file filter_indices.h.

template<typename PointT >

void pcl::RandomSample< PointT >::setSample ( unsigned int sample)

inline

Set number of indices to be sampled.

Parameters

sample

Definition at line 78 of file random_sample.h.

template<typename PointT >

void pcl::RandomSample< PointT >::setSeed ( unsigned int seed)

inline

Set seed of random function.

Parameters

seed

Definition at line 95 of file random_sample.h.

template<typename PointT>

void pcl::FilterIndices< PointT >::setUserFilterValue ( float value)

inlineinherited

Provide a value that the filtered points should be set to instead of removing them.

Used in conjunction with setKeepOrganized ().

Parameters

[in] value the user given value that the filtered point dimensions should be set to (default = NaN).

Definition at line 155 of file filter_indices.h.

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

/builddir/build/BUILD/PCL-1.6.0-Source/filters/include/pcl/filters/random_sample.h
/builddir/build/BUILD/PCL-1.6.0-Source/filters/include/pcl/filters/impl/random_sample.hpp

Public Types

Public Member Functions

Detailed Description

template<typename PointT> class pcl::RandomSample< PointT >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

template<typename PointT>
class pcl::RandomSample< PointT >