Spatial Reference System container for libLAS. More...

#include <spatialreference.hpp>

Collaboration diagram for liblas::SpatialReference:

Public Types
enum	WKTModeFlag { eHorizontalOnly = 1, eCompoundOK = 2 }

enum	GeoVLRType { eGeoTIFF = 1, eOGRWKT = 2 }

Public Member Functions
	SpatialReference ()
	Default constructor. More...

	~SpatialReference ()
	Destructor. More...

	SpatialReference (std::vector< VariableRecord > const &vlrs)
	Constructor creating SpatialReference instance from given Variable-Length Record. More...

	SpatialReference (SpatialReference const &other)
	Copy constryctor. More...

SpatialReference &	operator= (SpatialReference const &rhs)
	Assignment operator. More...

bool	operator== (const SpatialReference &other) const

bool	operator!= (const SpatialReference &other) const

const GTIF *	GetGTIF ()
	Returns a pointer to the internal GTIF*. More...

void	SetGTIF (GTIF pgtiff, ST_TIFF ptiff)

std::string	GetWKT (WKTModeFlag mode_flag=eHorizontalOnly) const
	Returns the OGC WKT describing Spatial Reference System. More...

std::string	GetWKT (WKTModeFlag mode_flag, bool pretty) const

void	SetWKT (std::string const &v)
	Sets the SRS using GDAL's OGC WKT. More...

void	SetVerticalCS (int32_t verticalCSType, std::string const &citation=std::string(0), int32_t verticalDatum=-1, int32_t verticalUnits=9001)
	Sets the vertical coordinate system using geotiff key values. More...

void	SetFromUserInput (std::string const &v)
	Sets the SRS using GDAL's SetFromUserInput function. More...

std::string	GetProj4 () const
	Returns the Proj.4 string describing the Spatial Reference System. More...

void	SetProj4 (std::string const &v)
	Sets the Proj.4 string describing the Spatial Reference System. More...

void	SetVLRs (std::vector< VariableRecord > const &vlrs)
	Set the LASVLRs for the SpatialReference. More...

void	AddVLR (VariableRecord const &vlr)
	Add a VLR representing GeoTIFF keys to the SRS. More...

std::vector< VariableRecord >	GetVLRs () const
	Return a copy of the LASVLRs that SpatialReference maintains. More...

void	ClearVLRs (GeoVLRType eType)

liblas::property_tree::ptree	GetPTree () const

Detailed Description

Spatial Reference System container for libLAS.

Member Enumeration Documentation

enum liblas::SpatialReference::GeoVLRType

Enumerator
eGeoTIFF
eOGRWKT

enum liblas::SpatialReference::WKTModeFlag

Enumerator
eHorizontalOnly
eCompoundOK

Constructor & Destructor Documentation

liblas::SpatialReference::SpatialReference ( )

Default constructor.

liblas::SpatialReference::~SpatialReference ( )

Destructor.

If libgeotiff is enabled, deallocates libtiff and libgeotiff objects used internally.

liblas::SpatialReference::SpatialReference ( std::vector< VariableRecord > const & vlrs )

Constructor creating SpatialReference instance from given Variable-Length Record.

liblas::SpatialReference::SpatialReference ( SpatialReference const & other )

Copy constryctor.

Member Function Documentation

void liblas::SpatialReference::AddVLR ( VariableRecord const & vlr )

Add a VLR representing GeoTIFF keys to the SRS.

void liblas::SpatialReference::ClearVLRs ( GeoVLRType eType )

const GTIF* liblas::SpatialReference::GetGTIF ( )

Returns a pointer to the internal GTIF*.

Only available if you have libgeotiff linked in.

std::string liblas::SpatialReference::GetProj4 ( ) const

Returns the Proj.4 string describing the Spatial Reference System.

If GDAL is linked, it uses GDAL's operations and methods to determine the Proj.4 string – otherwise, if libgeotiff is linked, it uses that. Note that GDAL's operations are much more mature and support more coordinate systems and descriptions.

liblas::property_tree::ptree liblas::SpatialReference::GetPTree ( ) const

std::vector<VariableRecord> liblas::SpatialReference::GetVLRs ( ) const

Return a copy of the LASVLRs that SpatialReference maintains.

std::string liblas::SpatialReference::GetWKT ( WKTModeFlag mode_flag = eHorizontalOnly ) const

Returns the OGC WKT describing Spatial Reference System.

If GDAL is linked, it uses GDAL's operations and methods to determine the WKT. If GDAL is not linked, no WKT is returned.

Parameters

mode_flag May be eHorizontalOnly indicating the WKT will not include vertical coordinate system info (the default), or eCompoundOK indicating the the returned WKT may be a compound coordinate system if there is vertical coordinate system info available.

std::string liblas::SpatialReference::GetWKT	(	WKTModeFlag	mode_flag,
		bool	pretty
	)		const

bool liblas::SpatialReference::operator!= ( const SpatialReference & other ) const

inline

References LAS_C_END, LAS_C_START, LAS_DLL, and liblas::operator<<().

SpatialReference& liblas::SpatialReference::operator= ( SpatialReference const & rhs )

Assignment operator.

bool liblas::SpatialReference::operator== ( const SpatialReference & other ) const

void liblas::SpatialReference::SetFromUserInput ( std::string const & v )

Sets the SRS using GDAL's SetFromUserInput function.

If GDAL is not linked, this operation has no effect.

Parameters

v	- a string containing the definition (filename, proj4, wkt, etc).

void liblas::SpatialReference::SetGTIF	(	GTIF *	pgtiff,
		ST_TIFF *	ptiff
	)

void liblas::SpatialReference::SetProj4 ( std::string const & v )

Sets the Proj.4 string describing the Spatial Reference System.

If GDAL is linked, it uses GDAL's operations and methods to determine the Proj.4 string – otherwise, if libgeotiff is linked, it uses that. Note that GDAL's operations are much more mature and support more coordinate systems and descriptions.

Parameters

v	- a string containing the Proj.4 string.

void liblas::SpatialReference::SetVerticalCS	(	int32_t	verticalCSType,
		std::string const &	citation = `std::string(0)`,
		int32_t	verticalDatum = `-1`,
		int32_t	verticalUnits = `9001`
	)

Sets the vertical coordinate system using geotiff key values.

This operation should normally be done after setting the horizontal portion of the coordinate system with something like SetWKT(), SetProj4(), SetGTIF() or SetFromUserInput()

Parameters

verticalCSType	- An EPSG vertical coordinate system code, normally in the range 5600 to 5799, or -1 if one is not available.
citation	- a textual description of the vertical coordinate system or an empty string if nothing is available.
verticalDatum	- the EPSG vertical datum code, often in the range 5100 to 5299 - implied by verticalCSType if that is provided, or -1 if no value is available.
verticalUnits	- the EPSG vertical units code, often 9001 for Metre.

void liblas::SpatialReference::SetVLRs ( std::vector< VariableRecord > const & vlrs )

Set the LASVLRs for the SpatialReference.

SetVLRs will only copy VLR records that pertain to the GeoTIFF keys, and extraneous VLR records will not be copied.

Parameters

vlrs	- A list of VLRs that contains VLRs describing GeoTIFF keys

void liblas::SpatialReference::SetWKT ( std::string const & v )

Sets the SRS using GDAL's OGC WKT.

If GDAL is not linked, this operation has no effect.

Parameters

v	- a string containing the WKT string.

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

/mnt/d/libLAS.wsl/include/liblas/spatialreference.hpp

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation