Slic3r::Arachne::PathsPointIndex< Paths > Class Template Reference

#include <src/libslic3r/Arachne/utils/PolygonsPointIndex.hpp>

Inheritance diagram for Slic3r::Arachne::PathsPointIndex< Paths >:

Public Member Functions
	PathsPointIndex ()
	PathsPointIndex (const Paths *polygons, unsigned int poly_idx, unsigned int point_idx)
	PathsPointIndex (const PathsPointIndex &original)=default
Point	p () const
bool	initialized () const
	Returns whether this point is initialised.
const Polygon &	getPolygon () const
bool	operator== (const PathsPointIndex &other) const
bool	operator!= (const PathsPointIndex &other) const
bool	operator< (const PathsPointIndex &other) const
PathsPointIndex &	operator= (const PathsPointIndex &other)
PathsPointIndex &	operator++ ()
	move the iterator forward (and wrap around at the end)
PathsPointIndex &	operator-- ()
	move the iterator backward (and wrap around at the beginning)
PathsPointIndex	next () const
	move the iterator forward (and wrap around at the end)
PathsPointIndex	prev () const
	move the iterator backward (and wrap around at the beginning)

Public Attributes
const Paths *	polygons
unsigned int	poly_idx
	The index of the polygon in PolygonsPointIndex::polygons.
unsigned int	point_idx
	The index of the point in the polygon in PolygonsPointIndex::polygons.

Detailed Description

template<typename Paths>
class Slic3r::Arachne::PathsPointIndex< Paths >

A class for iterating over the points in one of the polygons in a Polygons object

Constructor & Destructor Documentation

PathsPointIndex() [1/3]

template<typename Paths >

Slic3r::Arachne::PathsPointIndex< Paths >::PathsPointIndex ( )

inline

Constructs an empty point index to no polygon.

This is used as a placeholder for when there is a zero-construction needed. Since the polygons field is const you can't ever make this initialisation useful.

: polygons(nullptr), poly_idx(0), point_idx(0) {}

PathsPointIndex() [2/3]

template<typename Paths >

Slic3r::Arachne::PathsPointIndex< Paths >::PathsPointIndex ( const Paths *  polygons, unsigned int  poly_idx, unsigned int  point_idx  )

inline

Constructs a new point index to a vertex of a polygon.

Parameters

polygons	The Polygons instance to which this index points.
poly_idx	The index of the sub-polygon to point to.
point_idx	The index of the vertex in the sub-polygon.

: polygons(polygons), poly_idx(poly_idx), point_idx(point_idx) {}

PathsPointIndex() [3/3]

template<typename Paths >

Slic3r::Arachne::PathsPointIndex< Paths >::PathsPointIndex ( const PathsPointIndex< Paths > &  original )

default

Copy constructor to copy these indices.

Member Function Documentation

getPolygon()

template<typename Paths >

const Polygon & Slic3r::Arachne::PathsPointIndex< Paths >::getPolygon ( ) const

inline

Get the polygon to which this PolygonsPointIndex refers

{ return (*polygons)[poly_idx]; }

References Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

initialized()

template<typename Paths >

bool Slic3r::Arachne::PathsPointIndex< Paths >::initialized ( ) const

inline

Returns whether this point is initialised.

{ return polygons; }

References Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

Referenced by Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::stitch().

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next()

template<typename Paths >

PathsPointIndex Slic3r::Arachne::PathsPointIndex< Paths >::next ( ) const

inline

move the iterator forward (and wrap around at the end)

    {
        PathsPointIndex ret(*this);
        ++ret;
        return ret;
    }

Referenced by Slic3r::Arachne::SkeletalTrapezoidation::computePointCellRange(), boost::polygon::segment_traits< Slic3r::Arachne::PolygonsSegmentIndex >::get(), and Slic3r::Arachne::PolygonsSegmentIndex::to().

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operator!=()

template<typename Paths >

bool Slic3r::Arachne::PathsPointIndex< Paths >::operator!= ( const PathsPointIndex< Paths > &  other ) const

inline

    {
        return !(*this == other);
    }

operator++()

template<typename Paths >

PathsPointIndex & Slic3r::Arachne::PathsPointIndex< Paths >::operator++ ( )

inline

move the iterator forward (and wrap around at the end)

    {
        point_idx = (point_idx + 1) % (*polygons)[poly_idx].size();
        return *this;
    }

References Slic3r::Arachne::PathsPointIndex< Paths >::point_idx, Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

operator--()

template<typename Paths >

PathsPointIndex & Slic3r::Arachne::PathsPointIndex< Paths >::operator-- ( )

inline

move the iterator backward (and wrap around at the beginning)

    {
        if (point_idx == 0)
            point_idx = (*polygons)[poly_idx].size();
        point_idx--;
        return *this;
    }

References Slic3r::Arachne::PathsPointIndex< Paths >::point_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx.

operator<()

template<typename Paths >

bool Slic3r::Arachne::PathsPointIndex< Paths >::operator< ( const PathsPointIndex< Paths > &  other ) const

inline

    {
        return this->p() < other.p();
    }

References Slic3r::Arachne::PathsPointIndex< Paths >::p().

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operator=()

template<typename Paths >

PathsPointIndex & Slic3r::Arachne::PathsPointIndex< Paths >::operator= ( const PathsPointIndex< Paths > &  other )

inline

    {
        polygons  = other.polygons;
        poly_idx  = other.poly_idx;
        point_idx = other.point_idx;
        return *this;
    }

References Slic3r::Arachne::PathsPointIndex< Paths >::point_idx, Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

operator==()

template<typename Paths >

bool Slic3r::Arachne::PathsPointIndex< Paths >::operator== ( const PathsPointIndex< Paths > &  other ) const

inline

Test whether two iterators refer to the same polygon in the same polygon list.

Parameters

other

The PolygonsPointIndex to test for equality

Returns

Wether the right argument refers to the same polygon in the same ListPolygon as the left argument.

    {
        return polygons == other.polygons && poly_idx == other.poly_idx && point_idx == other.point_idx;
    }

References Slic3r::Arachne::PathsPointIndex< Paths >::point_idx, Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

p()

template<typename Paths >

Point Slic3r::Arachne::PathsPointIndex< Paths >::p ( ) const

inline

    {
        if (!polygons)
            return {0, 0};
 
        return make_point((*polygons)[poly_idx][point_idx]);
    }

References Slic3r::Arachne::make_point(), Slic3r::Arachne::PathsPointIndex< Paths >::point_idx, Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx, and Slic3r::Arachne::PathsPointIndex< Paths >::polygons.

Referenced by Slic3r::Arachne::SkeletalTrapezoidation::computePointCellRange(), Slic3r::Arachne::PolygonsSegmentIndex::from(), boost::polygon::segment_traits< Slic3r::Arachne::PolygonsSegmentIndex >::get(), Slic3r::Arachne::PathsPointIndexLocator< Paths >::operator()(), std::hash< Slic3r::Arachne::PolygonsPointIndex >::operator()(), Slic3r::Arachne::PathsPointIndex< Paths >::operator<(), Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::stitch(), and Slic3r::Arachne::PolygonsSegmentIndex::to().

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prev()

template<typename Paths >

PathsPointIndex Slic3r::Arachne::PathsPointIndex< Paths >::prev ( ) const

inline

move the iterator backward (and wrap around at the beginning)

    {
        PathsPointIndex ret(*this);
        --ret;
        return ret;
    }

Referenced by Slic3r::Arachne::SkeletalTrapezoidation::computePointCellRange().

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Member Data Documentation

point_idx

template<typename Paths >

unsigned int Slic3r::Arachne::PathsPointIndex< Paths >::point_idx

The index of the point in the polygon in PolygonsPointIndex::polygons.

Referenced by Slic3r::Arachne::PolygonsPointIndexSegmentLocator::operator()(), Slic3r::Arachne::PathsPointIndex< Paths >::operator++(), Slic3r::Arachne::PathsPointIndex< Paths >::operator--(), Slic3r::Arachne::PathsPointIndex< Paths >::operator=(), Slic3r::Arachne::PathsPointIndex< Paths >::operator==(), Slic3r::Arachne::PathsPointIndex< Paths >::p(), and Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::stitch().

poly_idx

template<typename Paths >

unsigned int Slic3r::Arachne::PathsPointIndex< Paths >::poly_idx

The index of the polygon in PolygonsPointIndex::polygons.

Referenced by Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::canReverse(), Slic3r::Arachne::PathsPointIndex< Paths >::getPolygon(), Slic3r::Arachne::PolygonsPointIndexSegmentLocator::operator()(), Slic3r::Arachne::PathsPointIndex< Paths >::operator++(), Slic3r::Arachne::PathsPointIndex< Paths >::operator--(), Slic3r::Arachne::PathsPointIndex< Paths >::operator=(), Slic3r::Arachne::PathsPointIndex< Paths >::operator==(), Slic3r::Arachne::PathsPointIndex< Paths >::p(), and Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::stitch().

polygons

template<typename Paths >

const Paths* Slic3r::Arachne::PathsPointIndex< Paths >::polygons

The polygons into which this index is indexing.

Referenced by Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::canReverse(), Slic3r::Arachne::PathsPointIndex< Paths >::getPolygon(), Slic3r::Arachne::PathsPointIndex< Paths >::initialized(), Slic3r::Arachne::PolygonsPointIndexSegmentLocator::operator()(), Slic3r::Arachne::PathsPointIndex< Paths >::operator++(), Slic3r::Arachne::PathsPointIndex< Paths >::operator=(), Slic3r::Arachne::PathsPointIndex< Paths >::operator==(), Slic3r::Arachne::PathsPointIndex< Paths >::p(), and Slic3r::Arachne::PolylineStitcher< Paths, Path, Junction >::stitch().

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

• src/libslic3r/Arachne/utils/PolygonsPointIndex.hpp