geos::noding::ScaledNoder Class Reference

Wraps a Noder and transforms its input into the integer domain. More...

#include <ScaledNoder.h>

Inheritance diagram for geos::noding::ScaledNoder:

Collaboration diagram for geos::noding::ScaledNoder:

Public Member Functions
bool	isIntegerPrecision ()
	ScaledNoder (Noder &n, double nScaleFactor, double nOffsetX=0.0, double nOffsetY=0.0)
	~ScaledNoder () override
std::vector< SegmentString * > *	getNodedSubstrings () const override
	Returns a collection of fully noded SegmentStrings. The SegmentStrings have the same context as their parent. More...
void	computeNodes (std::vector< SegmentString * > *inputSegStr) override
	Computes the noding for a collection of SegmentStrings. More...
void	filter_ro (const geom::Coordinate *c)
void	filter_rw (geom::Coordinate *c) const
Public Member Functions inherited from geos::noding::Noder
virtual	~Noder ()

Private Member Functions
void	rescale (std::vector< SegmentString * > &segStrings) const
void	scale (std::vector< SegmentString * > &segStrings) const
	ScaledNoder (const ScaledNoder &other)=delete
ScaledNoder &	operator= (const ScaledNoder &rhs)=delete

Private Attributes
Noder &	noder
double	scaleFactor
double	offsetX
double	offsetY
bool	isScaled
std::vector< geom::CoordinateSequence * >	newCoordSeq

Friends
class	ScaledNoder::Scaler
class	ScaledNoder::ReScaler

Additional Inherited Members
Protected Member Functions inherited from geos::noding::Noder
	Noder ()

Detailed Description

Wraps a Noder and transforms its input into the integer domain.

This is intended for use with Snap-Rounding noders, which typically are only intended to work in the integer domain. Offsets can be provided to increase the number of digits of available precision.

Definition at line 61 of file ScaledNoder.h.

Constructor & Destructor Documentation

geos::noding::ScaledNoder::ScaledNoder ( Noder &  n, double  nScaleFactor, double  nOffsetX = 0.0, double  nOffsetY = 0.0  )

inline

Definition at line 71 of file ScaledNoder.h.

geos::noding::ScaledNoder::~ScaledNoder ( )

override

geos::noding::ScaledNoder::ScaledNoder ( const ScaledNoder &  other )

privatedelete

Member Function Documentation

void geos::noding::ScaledNoder::computeNodes ( std::vector< SegmentString * > *  segStrings )

overridevirtual

Computes the noding for a collection of SegmentStrings.

Some Noders may add all these nodes to the input SegmentStrings; others may only add some or none at all.

Parameters

segStrings

a collection of SegmentStrings to node The caller remains responsible for releasing the memory associated with the container and its elements.

Implements geos::noding::Noder.

void geos::noding::ScaledNoder::filter_ro ( const geom::Coordinate *  c )

inline

Definition at line 90 of file ScaledNoder.h.

References geos::ignore_unused_variable_warning().

Here is the call graph for this function:

void geos::noding::ScaledNoder::filter_rw

(

geom::Coordinate *

c

)

const

std::vector<SegmentString*>* geos::noding::ScaledNoder::getNodedSubstrings ( ) const

overridevirtual

Returns a collection of fully noded SegmentStrings. The SegmentStrings have the same context as their parent.

Returns

a newly allocated std::vector of newly allocated SegmentStrings (copies of input, if needs be). Caller is responsible to delete container and elements.

Implements geos::noding::Noder.

bool geos::noding::ScaledNoder::isIntegerPrecision ( )

inline

Definition at line 66 of file ScaledNoder.h.

ScaledNoder& geos::noding::ScaledNoder::operator= ( const ScaledNoder &  rhs )

privatedelete

void geos::noding::ScaledNoder::rescale ( std::vector< SegmentString * > &  segStrings ) const

private

void geos::noding::ScaledNoder::scale ( std::vector< SegmentString * > &  segStrings ) const

private

Friends And Related Function Documentation

friend class ScaledNoder::ReScaler

friend

Definition at line 120 of file ScaledNoder.h.

friend class ScaledNoder::Scaler

friend

Definition at line 116 of file ScaledNoder.h.

Member Data Documentation

bool geos::noding::ScaledNoder::isScaled

private

Definition at line 108 of file ScaledNoder.h.

std::vector<geom::CoordinateSequence*> geos::noding::ScaledNoder::newCoordSeq

mutableprivate

Definition at line 122 of file ScaledNoder.h.

Noder& geos::noding::ScaledNoder::noder

private

Definition at line 100 of file ScaledNoder.h.

double geos::noding::ScaledNoder::offsetX

private

Definition at line 104 of file ScaledNoder.h.

double geos::noding::ScaledNoder::offsetY

private

Definition at line 106 of file ScaledNoder.h.

double geos::noding::ScaledNoder::scaleFactor

private

Definition at line 102 of file ScaledNoder.h.

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

• ScaledNoder.h