Writes a Geometry into Well-Known Binary format. More...

#include <WKBWriter.h>

Public Member Functions
	WKBWriter (uint8_t dims=4, int bo=getMachineByteOrder(), bool includeSRID=false, int flv=WKBConstants::wkbExtended)

uint8_t	getOutputDimension () const

void	setOutputDimension (uint8_t newOutputDimension)

int	getByteOrder () const

void	setByteOrder (int newByteOrder)

bool	getIncludeSRID () const

void	setIncludeSRID (bool newIncludeSRID)

int	getFlavor () const

void	setFlavor (int newFlavor)

void	write (const geom::Geometry &g, std::ostream &os)
	Write a Geometry to an ostream.

void	writeHEX (const geom::Geometry &g, std::ostream &os)
	Write a Geometry to an ostream in binary hex format.

Static Public Member Functions
static int	getWkbType (const geom::Geometry &)

Detailed Description

Writes a Geometry into Well-Known Binary format.

The WKB format is specified in the OGC Simple Features for SQL specification. This implementation supports the extended WKB standard for representing Z and M coordinates. The presence of Z and/or M coordinates is signified by setting the high bit of the wkbType word.

Empty Points cannot be represented in WKB; an IllegalArgumentException will be thrown if one is written. The WKB specification does not support representing LinearRing they will be written as LineString

This class is designed to support reuse of a single instance to read multiple geometries. This class is not thread-safe; each thread should create its own instance.

See also: WKBReader

Member Function Documentation

◆ write()

void geos::io::WKBWriter::write	(	const geom::Geometry &	g,
		std::ostream &	os
	)

Write a Geometry to an ostream.

Parameters

g	the geometry to write
os	the output stream

Exceptions

IOException

◆ writeHEX()

void geos::io::WKBWriter::writeHEX	(	const geom::Geometry &	g,
		std::ostream &	os
	)

Write a Geometry to an ostream in binary hex format.