GEOS  3.6.1
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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:
geos::noding::Noder

Public Member Functions

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

Friends

class ScaledNoder::Scaler
 
class ScaledNoder::ReScaler
 

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.

Member Function Documentation

◆ computeNodes()

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

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
segStringsa collection of SegmentStrings to node

Implements geos::noding::Noder.

◆ getNodedSubstrings()

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

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

Returns
a newly allocated std::vector of const SegmentStrings. Caller is responsible to delete container and elements.

Implements geos::noding::Noder.


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