MG4PointReader reads LiDAR-based MrSID files. More...

#include <MG4PointReader.h>

Inheritance diagram for MG4PointReader:

Public Member Functions
void	init (const char *path)
	Initalize with a filename. More...

void	init (IO *io)
	Initalize with a IO object. More...

void	loadMetadata (Metadata &metadata, bool sanitize) const
	Load the point clouds metadata. More...

char const const	getClassIdNames (void) const
	Get the classification names. More...

size_t	getNumClassIdNames (void) const
	Get the number of classification names. More...

const char *	getFileFormatString (void) const
	Get the file type and version. More...

double	getTotalWork (const Bounds &bounds, double fraction) const
	Get the amount of work needed to decode bounds. More...

PointIterator *	createIterator (const Bounds &bounds, double fraction, const PointInfo &pointInfo, ProgressDelegate *delegate) const
	Get a PointIterator for a given bounds. More...

Public Member Functions inherited from PointReader
const PointInfo &	getPointInfo (void) const
	Get the point information. More...

count_type	getNumPoints (void) const
	Get the number of points. More...

const char *	getWKT (void) const
	Get the spatial reference system. More...

void	overrideWKT (const char *wkt)

const Bounds &	getBounds (void) const
	Get the bounding box. More...

const double *	getScale (void) const
	Get the quantization scale. More...

const double *	getOffset (void) const
	Get the quantization offset. More...

char const const	getClassIdNames (void) const
	Get the classification names. More...

size_t	getNumClassIdNames (void) const
	Get the number of classification names. More...

double	getTotalWork (const Bounds &bounds, double fraction) const
	Get the amount of work needed to decode bounds. More...

Public Member Functions inherited from PointSource
size_t	getNumChannels (void) const
	Get the number of channels. More...

bool	hasChannel (const char *name) const
	Determine if there is a channel with a given name. More...

const ChannelInfo &	getChannel (size_t idx) const
	Access the channel info. More...

const ChannelInfo *	getChannel (const char *name) const
	Access the channel data. More...

size_t	read (const Bounds &bounds, PointData &points, ProgressDelegate *delegate) const
	Fill the point buffer with the best sample of the point cloud in bounds. More...

Public Member Functions inherited from Object
int	retain (void) const
	Increment the reference count by one. More...

int	release (void) const
	Decrement the reference count by one. More...

Protected Attributes
char	m_version [32]

WaveletDecoderInfo *	m_waveletInfo

IO::Location	m_metadata

char **	m_classId

size_t	m_numClasses

bool	m_mergingFloats

Protected Attributes inherited from PointReader
bool	m_ignoreNativeWKTMetadata

Additional Inherited Members
Public Types inherited from PointSource
typedef lt_int64	count_type

Protected Member Functions inherited from PointReader
void	setPointInfo (const PointInfo &pointInfo)
	Set the point information. More...

void	setNumPoints (count_type numPoints)
	Set the number of points in the point cloud. More...

void	setBounds (const Bounds &bounds)
	Set the bounding box of the point cloud. More...

void	setWKT (const char *wkt)
	Set the spatial reference system. More...

void	setQuantization (const double scale[3], const double offset[3])
	Set the quantization scale and offset. More...

Protected Member Functions inherited from Object
	Object (void)

virtual	~Object (void)

Detailed Description

The MG4PointReader class reads MrSID files that contain LiDAR data.

See also: See examples/src/DecodeMG4ToTXT.cpp and examples/src/UserTutorial.cpp for examples on reading MG4 files.

Definition at line 30 of file MG4PointReader.h.

Member Function Documentation

PointIterator* MG4PointReader::createIterator	(	const Bounds &	bounds,
		double	fraction,
		const PointInfo &	pointInfo,
		ProgressDelegate *	delegate
	)		const

virtual

This methods returns a PointIterator for the given bounds.

Parameters

bounds	the region of interest (HUGE_VAL are handled)
fraction	the fraction of the points you want (use 1.0 for all the points and use 0.1 to keep every tenth point)
channelInfo	the list of channels to be extracted
numChannels	the number of channels to be extracted
delegate	a ProgressDelegate for feedback (can be NULL)

Implements PointSource.

char const* const* MG4PointReader::getClassIdNames ( void ) const

virtual

This methods returns an array of classification names with length getNumClassIdNames().

Implements PointSource.

const char* MG4PointReader::getFileFormatString ( void ) const

virtual

This method returns a string the contains the File Type and version of the PointReader. For example for a MrSID file this will will return "MG4 4.0.0.1".

Implements PointReader.

size_t MG4PointReader::getNumClassIdNames ( void ) const

virtual

This methods returns the number of classification names.

Implements PointSource.

double MG4PointReader::getTotalWork	(	const Bounds &	bounds,
		double	fraction
	)		const

virtual

This method returns the amount of work needed to decode the points in bounds. getTotalWork() is used with ProgressDelegate to track the progress of a decode or encode.

Parameters

bounds	the region of interest
fraction	the fraction of the points you want (use 1.0 for all the points and use 0.1 to keep every tenth point)

Returns: the work needed to decode bounds

Implements PointSource.

void MG4PointReader::init ( const char * path )

This method initalizes the reader with a filename.

Parameters

path	the filename

void MG4PointReader::init ( IO * io )

This method initalizes the reader with a IO object.

Parameters

io	the data source

void MG4PointReader::loadMetadata	(	Metadata &	metadata,
		bool	sanitize
	)		const

virtual

This method loads the metadata for the point cloud. PointSource only load metadata on demand to reduce memory usage.

Parameters

metadata	The metadata object to fill.
sanitize	If true remove vendor-specific metadata that we don't understand for example, Merrick::102 ("Index to page of point records")

Implements PointSource.

Member Data Documentation

char** MG4PointReader::m_classId

protected

Definition at line 69 of file MG4PointReader.h.

bool MG4PointReader::m_mergingFloats

protected

Definition at line 71 of file MG4PointReader.h.

IO::Location MG4PointReader::m_metadata

protected

Definition at line 68 of file MG4PointReader.h.

size_t MG4PointReader::m_numClasses

protected

Definition at line 70 of file MG4PointReader.h.

char MG4PointReader::m_version[32]

protected

Definition at line 65 of file MG4PointReader.h.

WaveletDecoderInfo* MG4PointReader::m_waveletInfo

protected

Definition at line 67 of file MG4PointReader.h.

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

MG4PointReader.h

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

Member Data Documentation