GEOS  3.8.0dev
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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 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
 

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

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
segStringsa collection of SegmentStrings to node

Implements geos::noding::Noder.

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 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: