This class implements geometry snap concept. More...

#include <Snap.h>

Inheritance diagram for te::edit::Snap:

Public Member Functions
void	add (te::da::DataSet *dataset)

virtual void	add (te::gm::Geometry *geom)=0

void	build (te::da::DataSet *dataset)

virtual void	clear ()=0

virtual std::string	getDescription () const =0

std::size_t	getMaxGeometries () const

virtual std::string	getName () const =0

std::size_t	getNGeometries () const

std::string	getSource () const

int	getSRID () const

double	getTolerance () const

virtual bool	search (const te::gm::Coord2D &coord, te::gm::Coord2D &result)

void	setTolerance (const double &t)

void	setWorld (const double &llx, const double &lly, const double &urx, const double &ury, const std::size_t &width, const std::size_t &height)

	Snap (const std::string &source, int srid=TE_UNKNOWN_SRS)

virtual	~Snap ()

Protected Member Functions
te::gm::Envelope	getSearchEnvelope (const te::gm::Coord2D &coord) const

virtual bool	search (const te::gm::Envelope &e, te::gm::Coord2D &result)=0

Protected Attributes
std::size_t	m_maxGeometries
	The maximum number of geometries that can be added to the snap. If 0, there will be not limit. More...

std::size_t	m_nGeometries
	The current number of geometries added to the snap. More...

std::string	m_source
	The source of the geometries. More...

int	m_srid
	The SRS of the geometries. More...

double	m_tolerance
	The tolerance that will be used by the snap. For while, the unit is screen pixels. More...

te::map::WorldDeviceTransformer *	m_transformer
	For transforming from device coordinate to world coordinate and vice-versa. More...

Detailed Description

This class implements geometry snap concept.

Definition at line 63 of file Snap.h.

Constructor & Destructor Documentation

te::edit::Snap::Snap	(	const std::string &	source,
		int	srid = `TE_UNKNOWN_SRS`
	)

Definition at line 40 of file Snap.cpp.

te::edit::Snap::~Snap ( )

virtual

Definition at line 50 of file Snap.cpp.

References m_transformer.

Member Function Documentation

void te::edit::Snap::add ( te::da::DataSet * dataset )

Definition at line 102 of file Snap.cpp.

References te::dt::GEOMETRY_TYPE, te::da::GetFirstPropertyPos(), te::da::DataSet::getGeometry(), and te::da::DataSet::moveNext().

Referenced by build().

virtual void te::edit::Snap::add ( te::gm::Geometry * geom )

pure virtual

Implemented in te::edit::SnapVertex.

void te::edit::Snap::build ( te::da::DataSet * dataset )

Definition at line 93 of file Snap.cpp.

References add(), and clear().

Referenced by te::edit::SnapManager::buildSnap().

virtual void te::edit::Snap::clear ( )

pure virtual

Implemented in te::edit::SnapVertex.

Referenced by build(), and te::edit::SnapManager::clear().

virtual std::string te::edit::Snap::getDescription ( ) const

pure virtual

Implemented in te::edit::SnapVertex.

std::size_t te::edit::Snap::getMaxGeometries ( ) const

Definition at line 70 of file Snap.cpp.

References m_maxGeometries.

virtual std::string te::edit::Snap::getName ( ) const

pure virtual

Implemented in te::edit::SnapVertex.

std::size_t te::edit::Snap::getNGeometries ( ) const

Definition at line 65 of file Snap.cpp.

References m_nGeometries.

te::gm::Envelope te::edit::Snap::getSearchEnvelope ( const te::gm::Coord2D & coord ) const

protected

Definition at line 125 of file Snap.cpp.

References te::map::WorldDeviceTransformer::device2World(), dx, te::gm::Envelope::isValid(), te::gm::Envelope::m_llx, te::gm::Envelope::m_lly, m_tolerance, m_transformer, te::gm::Envelope::m_urx, te::gm::Envelope::m_ury, TE_TR, te::map::WorldDeviceTransformer::world2Device(), te::gm::Coord2D::x, and te::gm::Coord2D::y.

Referenced by search().

std::string te::edit::Snap::getSource ( ) const

Definition at line 55 of file Snap.cpp.

References m_source.

int te::edit::Snap::getSRID ( ) const

Definition at line 60 of file Snap.cpp.

References m_srid.

double te::edit::Snap::getTolerance ( ) const

Definition at line 75 of file Snap.cpp.

References m_tolerance.

Referenced by te::edit::SnapOptionsDialog::buildOptions().

bool te::edit::Snap::search	(	const te::gm::Coord2D &	coord,
		te::gm::Coord2D &	result
	)

virtual

Definition at line 118 of file Snap.cpp.

References getSearchEnvelope().

virtual bool te::edit::Snap::search	(	const te::gm::Envelope &	e,
		te::gm::Coord2D &	result
	)

protectedpure virtual

Implemented in te::edit::SnapVertex.

void te::edit::Snap::setTolerance ( const double & t )

Definition at line 80 of file Snap.cpp.

References m_tolerance.

void te::edit::Snap::setWorld	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury,
		const std::size_t &	width,
		const std::size_t &	height
	)

Definition at line 85 of file Snap.cpp.

References m_transformer.

Member Data Documentation

std::size_t te::edit::Snap::m_maxGeometries

protected

The maximum number of geometries that can be added to the snap. If 0, there will be not limit.

Definition at line 112 of file Snap.h.

Referenced by te::edit::SnapVertex::add(), and getMaxGeometries().

std::size_t te::edit::Snap::m_nGeometries

protected

The current number of geometries added to the snap.

Definition at line 111 of file Snap.h.

Referenced by te::edit::SnapVertex::add(), te::edit::SnapVertex::clear(), and getNGeometries().

std::string te::edit::Snap::m_source

protected

The source of the geometries.

Definition at line 109 of file Snap.h.

Referenced by getSource().

int te::edit::Snap::m_srid

protected

The SRS of the geometries.

Definition at line 110 of file Snap.h.

Referenced by getSRID().

double te::edit::Snap::m_tolerance

protected

The tolerance that will be used by the snap. For while, the unit is screen pixels.

Definition at line 113 of file Snap.h.

Referenced by getSearchEnvelope(), getTolerance(), and setTolerance().

te::map::WorldDeviceTransformer* te::edit::Snap::m_transformer

protected

For transforming from device coordinate to world coordinate and vice-versa.

Definition at line 114 of file Snap.h.

Referenced by getSearchEnvelope(), setWorld(), and ~Snap().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation