Array2 Class Reference

A base two-dimensional array structure. More...

#include <array.h>

Inheritance diagram for Array2:

Public Member Functions
	Array2 ()
	Empty array, with empty box.
	Array2 (const Box2 &, int, int)
	Create the lattice structure.
	Array2 (const Box2 &, int)
	Create the lattice structure.
	Array2 (const Array &)
	Create the lattice structure.
Array2	DownSample (int) const
	Downsample the array.
Array2	UpSample (int) const
	Upsample the array.
	~Array2 ()
	Empty.
int	VertexSize () const
	Return the size of the vertex array.
int	GetSizeX () const
	Get the vertex size of the array for x axis.
int	GetSizeY () const
	Get the vertex size of the array for y axis.
int	VertexBorderSize () const
	Return the number of vertices on the boundary of the rectangle.
int	CellSize () const
	Return the size of the cell array.
int	CellSizeX () const
	Get the cell size of the array for x axis.
int	CellSizeY () const
	Get the cell size of the array for y axis.
QSize	GetQtSize () const
	Return the Qt size of the vertex array.
Box2	Cell (int) const
	Return the geometry of the cell.
Box2	Cell (int, int) const
	Return the geometry of the cell.
void	HalfCell (int, int, bool, Triangle2 &, Triangle2 &) const
	Return the geometry of the cell.
Vector2	CellCenter (int, int) const
	Return the center of the cell.
void	Scale (const Vector2 &)
	Scales the lattice structure.
void	Scale (const double &)
	Scales the array structure.
Box2	GetBox () const
	Get the box of the array.
Box2	UnitCell () const
	Return the geometry of a generic cell.
Vector2	CellDiagonal () const
	Return the cell diagonal vector.
double	CellArea () const
	Return the area of a cell.
Vector2	ArrayVertex (int, int) const
	Compute the coordinates of a point on the lattice.
Vector2	ArrayVertex (const QPoint &) const
	Compute the coordinates of a point on the lattice.
QVector< Vector2 >	ArrayVertexes (const QVector< QPoint > &) const
	Compute the coordinates of a set of points on the lattice.
Vector2	Size () const
	Return the size of the array.
QRect	AreaInteger () const
	Return the range of integer values for the domain.
QImage	ImageGrid (const Box2 &, const double &) const
	Create a texture with a regular grid.
void	Draw (QGraphicsScene &, const QPen &=QPen(), const QBrush &=QBrush()) const
	Draw the cells of the lattice.
void	Subdivide ()
	Change the resolution.
bool	IsEmpty () const
	Detect if the array is empty, i.e., any dimension equal to zero.
QPoint	VertexBorder (int) const
	Compute the k-th point on the boundary of the domain.
int	VertexBorderIndex (int, int) const
	Compute the index of a point on the boundary of the domain.
void	VertexInteger (const Vector2 &, int &, int &) const
	Compute the coordinates of a vertex inside a cell.
QPoint	VertexInteger (const Vector2 &) const
	Compute the coordinates of a vertex inside a cell.
QPoint	VertexInteger (const Vector2 &, double &, double &) const
	Compute the point on the lattice given an input point.
QRect	VertexIntegerArea (const Box2 &) const
	Compute the integer coordinates of the vertices embedding a box.
QRect	VertexIntegerArea (const Circle2 &) const
	Compute the integer coordinates of the vertices embedding a circle.
QRect	VertexIntegerArea (const QRect &) const
	Compute the integer coordinates span of the vertices embedding a rectangle.
QRect	VertexIntegerArea (int, int, int) const
	Compute the integer coordinates of the vertices embedding a cell with prescribed integer radius.
void	CellInteger (const Vector2 &, int &, int &) const
	Compute the coordinates of a vertex inside a cell.
void	CellInteger (const Vector2 &, int &, int &, double &, double &) const
	Compute the point on the lattice given an input point.
QPoint	CellInteger (const Vector2 &) const
	Compute the coordinates of a vertex inside a cell.
QPoint	CellInteger (const Vector2 &, double &, double &) const
	Compute the point on the lattice given an input point.
QRect	CellIntegerArea (const Box2 &) const
	Compute the integer coordinates of the cells of the array embedding an input box.
QRect	CellIntegerArea (const Circle2 &) const
	Compute the integer coordinates of the cells of the array embedding an input circle.
void	Translate (const Vector2 &)
	Translate the array.
Vector2	Center () const
	Return the center of the array.
constexpr bool	InsideVertexIndex (int, int) const
	Check if the indexes are within range.
constexpr bool	OutsideVertexIndex (int, int) const
	Check if the indexes are outside or on the border.
constexpr bool	InsideVertexIndex (const QPoint &) const
	Check if the indexes are within range.
constexpr bool	InsideVertexIndex (int, int, int) const
	Check if the indexes are within k-range.
bool	Inside (const Vector2 &) const
	Check if a point is in the rectangular domain.
constexpr bool	BorderVertexIndex (int, int) const
	Check if the indexes are on the border.
constexpr bool	BorderVertexIndex (const QPoint &) const
	Check if the indexes are on the border.
constexpr int	VertexIndex (int, int) const
	Compute the index of a given cell.
constexpr int	VertexIndex (const QPoint &) const
	Compute the index of a given cell.
QPoint	Next (const QPoint &, int) const
	Compute the point next to another one.
QString	Statistics () const
	Get statistics.
void	ClampVertexIndex (int &, int &) const
	Clamp vertex indexes to the size of the array.
Vector2	VertexUV (const Vector2 &) const
	Compute the coordinates of a point inside the box given uv coordinates.

Static Public Member Functions
static int	NeighborCode (int, int)
	Convert a direction to an 8 bit integer code.
static QPoint	CodeToDir (int)
	Convert an 8 bit integer code direction into a direction vector.

Protected Member Functions
constexpr void	InverseVertexIndex (int, int &, int &) const
	Compute the coordinates of a given cell.
constexpr QPoint	InverseVertexIndex (int) const
	Compute the coordinates of a given cell.
constexpr int	CellIndex (int, int) const
	Compute the index of a given cell.
constexpr int	CellIndex (const QPoint &) const
	Compute the index of a given cell.
constexpr bool	InsideCellIndex (int, int) const
	Check if the indexes are within range.
constexpr bool	InsideCellIndex (const QPoint &) const
	Check if the indexes are within range.
void	InverseCellIndex (int, int &, int &) const
	Compute the coordinates of a given cell.
Protected Member Functions inherited from Box2
	Box2 ()
	Empty.
	Box2 (const double &)
	Create a square box centered at the origin and of given half side length.
	Box2 (const double &, const double &)
	Create a box centered at the origin and of given dimensions.
	Box2 (const Vector2 &)
	Create a box from a single vertex.
	Box2 (const Vector2 &, const Vector2 &)
	Create a box.
	Box2 (const Vector2 &, const double &)
	Creates a box.
	Box2 (const Vector2 &, const double &, const double &)
	Create a box given a center point and its width, length, and height.
	Box2 (const Box &)
	Create a box in the plane given a box.
	Box2 (const Box2 &, const Box2 &)
	Create a box embedding two boxes.
	Box2 (const Box2 &, const Matrix2 &)
	Creates an axis aligned bounding box from a box and a transformation matrix.
	Box2 (const Box2 &, const Frame2 &)
	Creates an axis aligned bounding box from a box and a frame.
	Box2 (const QVector< Vector2 > &)
	Compute the bounding box of a set of points.
	Box2 (const QSize &)
	Create a box from a Qt size.
Vector2 &	operator[] (int)
	Returns either end vertex of the box.
Vector2	operator[] (int) const
	Overloaded.
Vector2	Size () const
	Compute the size (width and height) of a box.
double	Width () const
	Compute the width of a box.
double	Height () const
	Compute the height of a box.
Vector2	Diagonal () const
	Returns the diagonal of the box.
double	Radius () const
	Returns the radius of the box, i.e. the length of the half diagonal of the box.
double	Area () const
	Compute the surface area of a box.
double	Perimeter () const
	Compute the perimeter of the box.
Vector2	Center () const
	Returns the center of the box.
Vector2	Vertex (int) const
	Returns the k-th vertex of the box.
Vector2	Vertex (int, int, int, int) const
	Compute the coordinates of a grid aligned point.
Vector2	VertexUV (const Vector2 &) const
	Compute the coordinates of a point inside the box given uv coordinates.
Box2	Sub (int) const
	Computes the sub-box in the n-th quadrant.
double	R (const Vector2 &) const
	Compute the squared distance between the box and a point.
double	Signed (const Vector2 &) const
	Computes the signed distance between the box and a point.
double	R (const Box2 &) const
	Compute the squared Euclidean distance between two boxes.
void	Translate (const Vector2 &)
	Translates a box.
void	Scale (const Vector2 &)
	Scales a box.
void	Scale (const double &)
	Scales a box.
Box2	Translated (const Vector2 &) const
	Translated box.
Box2	Scaled (const double &) const
	Scales a box and return the scaled box.
Box2	Scaled (const Vector2 &) const
	Scales a box and return the scaled box.
Box2	Scaled (const QSize &) const
	Scales a box according to a Qt size.
Box2	ScaledTo (const double &) const
	Scale the box so that the largest side should equal the argument value.
Box2	ScaledCentered (const double &) const
	Scales a box while preserving its center.
Box2	Rotated (const double &) const
	Compute the box embedding the rotated box.
Box2	Rotated (const Matrix2 &) const
	Compute the box embedding the rotated box.
Box2	Centered () const
	Compute the box translated to origin.
void	SetCubic ()
	Creates the tightest embedding cube from an arbitrarilly shaped box.
void	SetInscribedCubic ()
	Creates the biggest cube inscribed in the box.
Box2	Cube () const
	Return the tightest embedding cube from an arbitrarilly shaped box.
void	Extend (const double &)
	Extend the limits of the box by a given distance.
void	Extend (const Vector2 &)
	Extend the limits of the box given a point.
Box2	Extended (const double &) const
	Extend the limits of the box by a given distance.
void	SetParallelepipedic (int, int &, int &)
	Inflates a box so that its dimensions should be a fraction of its maximum side length.
void	SetParallelepipedic (const double &, int &, int &)
	Creates a parallelepipedic box whose dimensions are integer multiples of a given input reference size.
bool	Inside (const Vector2 &) const
	Test if a point is inside the box.
bool	Inside (const Vector2 &, const double &) const
	Test if a point lies withing a given range of the box.
bool	Intersect (const Box2 &) const
	Check if the box intersects another box.
double	OverlapArea (const Box2 &) const
	Computes the overlapping area of two boxes.
Box2	Intersection (const Box2 &) const
	Computes the intersection between two boxes.
Box	ToBox (const double &, const double &) const
	Convert a planar Box2 to a Box.
int	Quadrant (const Vector2 &) const
	Computes quadrant index of a vertex with respect to the box center.
bool	Intersect (const Ray2 &, double &, double &) const
	Computes the intersection between a box and a ray.
bool	Intersect (const Ray2 &) const
	Computes the intersection between a box and a ray.
bool	Intersect (const Line2 &, double &, double &) const
	Computes the intersection between a box and a line.
bool	Intersect (const Segment2 &, double &, double &) const
	Compute the intersection between a box and a segment.
bool	Intersect (const Line2 &) const
	Check the intersection between a box and a line.
bool	Intersect (const Segment2 &) const
	Check the intersection between a box and a segment.
void	Draw (QGraphicsScene &, const QPen &=QPen(), const QBrush &=QBrush()) const
	Draw a rectangle.
Vector2	RandomInside (Random &=Random::R239) const
	Generate a random vector inside the box.
Vector2	RandomOn (Random &=Random::R239) const
	Generate a random vector on the perimeter of the box.
QRectF	GetQtRect () const
	Create the Qt rectangle.
QRect	TileRange (const Box2 &) const
	Compute the range of index for tiling the argument box so that it covers the box.
Box2	Tile (int, int) const
	Return the tiled the box using integer coordinates.
Box2	Tile (const QRect &) const
	Return the tiled the box using integer coordinates.
Segment2	GetSegment (const double &, bool=true) const
	Compute the horizontal or vertical segment dividing the box into u and 1-u parts.
QVector< Vector2 >	Poisson (const double &, int, Random &=Random::R239) const
	Compute a Poisson disc distribution inside a box.
QVector< Vector2 >	Poisson (const double &, int, const QVector< Vector2 > &, bool=true, Random &=Random::R239) const
	Compute a Poisson disc distribution inside a box.

Protected Attributes
int	ny = 0
	Sizes.
Vector2	celldiagonal = Vector2::Null
	Cell diagonal.
Vector2	inversecelldiagonal = Vector2::Null
	Inverse cell diagonal.
Protected Attributes inherited from Box2
Vector2	b = Vector2(1.0)
	Lower and upper vertexes of the box.

Static Protected Attributes
static const QPoint	next [8] = { QPoint(1, 0), QPoint(1, 1), QPoint(0, 1), QPoint(-1, 1), QPoint(-1, 0), QPoint(-1, -1), QPoint(0, -1), QPoint(1, -1) }
	Array of points in the 1-ring neighborhood.
static const double	length [8] = { 1.0, sqrt(2.0), 1.0, sqrt(2.0), 1.0, sqrt(2.0), 1.0, sqrt(2.0) }
	Length to the i-th neighbor.
static const double	inverselength [8] = { 1.0, 1.0 / sqrt(2.0), 1.0, 1.0 / sqrt(2.0), 1.0, 1.0 / sqrt(2.0), 1.0, 1.0 / sqrt(2.0) }
	Inverse length.
Static Protected Attributes inherited from Box2
static const double	epsilon = 1.0e-5
	Epsilon value used to check intersections and some round off errors.
static const Box2	Infinity
	Huge bounding box, which should enclose any other.
static const Box2	Null
	Null box, equivalent to.
static const Box2	Unit
	Unit box, defined as.

Friends
std::ostream &	operator<< (std::ostream &s, const Array2 &a)
	Overloaded.

Additional Inherited Members
Static Protected Member Functions inherited from Box2
static Box2	MinMax (const Vector2 &, const Vector2 &)
	Create a box from any two points.

Detailed Description

A base two-dimensional array structure.

An array is a two-dimensional rectangle virtually decomposed into cells.

Constructor & Destructor Documentation

Array2() [1/3]

Array2::Array2 ( const Box2 & box, int x, int y )

explicit

Create the lattice structure.

Parameters

box	The box.
x,y	Size of the lattice.

Array2() [2/3]

Array2::Array2 ( const Box2 & box, int n )

explicit

Create the lattice structure.

Parameters

box	The box.
n	Size of the lattice.

Array2() [3/3]

Array2::Array2 ( const Array & a )

explicit

Create the lattice structure.

Parameters

a	The lattice.

Member Function Documentation

ArrayVertex() [1/2]

Vector2 Array2::ArrayVertex ( const QPoint & p ) const

inline

Compute the coordinates of a point on the lattice.

Parameters

p

Point.

ArrayVertex() [2/2]

Vector2 Array2::ArrayVertex ( int i, int j ) const

inline

Compute the coordinates of a point on the lattice.

Parameters

i,j	Integer coordinates.

ArrayVertexes()

QVector< Vector2 > Array2::ArrayVertexes

(

const QVector< QPoint > &

s

)

const

Compute the coordinates of a set of points on the lattice.

See also

ArrayVertex

Parameters

s	Set of point.

BorderVertexIndex() [1/2]

bool Array2::BorderVertexIndex ( const QPoint & p ) const

inlineconstexpr

Check if the indexes are on the border.

Parameters

p

Point.

BorderVertexIndex() [2/2]

bool Array2::BorderVertexIndex ( int i, int j ) const

inlineconstexpr

Check if the indexes are on the border.

Parameters

i,j	Integer coordinates of the vertex.

Cell() [1/2]

Box2 Array2::Cell

(

int

c

)

const

Return the geometry of the cell.

Parameters

c	Integer cell index.

Cell() [2/2]

Box2 Array2::Cell	(	int	i,
		int	j ) const

Return the geometry of the cell.

Parameters

i,j	Integer coordinates of the cell.

CellArea()

double Array2::CellArea

(

)

const

Return the area of a cell.

This is convenience function, which is the same as the following code, but more efficient:

Array2 array;
double a=array.UnitCell().Area();

CellCenter()

Vector2 Array2::CellCenter	(	int	i,
		int	j ) const

Return the center of the cell.

Parameters

i,j	Integer coordinates of the cell.

CellIndex() [1/2]

int Array2::CellIndex ( const QPoint & p ) const

inlineconstexprprotected

Compute the index of a given cell.

Parameters

p

Point.

CellIndex() [2/2]

int Array2::CellIndex ( int i, int j ) const

inlineconstexprprotected

Compute the index of a given cell.

Parameters

i,j	Integer coordinates of the cell.

CellInteger() [1/4]

QPoint Array2::CellInteger ( const Vector2 & p ) const

inline

Compute the coordinates of a vertex inside a cell.

Parameters

p

Point.

CellInteger() [2/4]

QPoint Array2::CellInteger ( const Vector2 & p, double & u, double & v ) const

inline

Compute the point on the lattice given an input point.

Parameters

p	Point.
u,v	Coordinates of the point in the corresponding cell.

CellInteger() [3/4]

void Array2::CellInteger ( const Vector2 & p, int & i, int & j ) const

inline

Compute the coordinates of a vertex inside a cell.

Parameters

p	Point.
i,j	Integer coordinates of the cell.

CellInteger() [4/4]

void Array2::CellInteger ( const Vector2 & p, int & i, int & j, double & u, double & v ) const

inline

Compute the point on the lattice given an input point.

Parameters

p	Point.
i,j	Integer coordinates of the cell.
u,v	Coordinates of the point in the corresponding cell.

CellIntegerArea() [1/2]

QRect Array2::CellIntegerArea

(

const Box2 &

box

)

const

Compute the integer coordinates of the cells of the array embedding an input box.

The coordinates are clamped to the size of the array.

Parameters

box

The box.

CellIntegerArea() [2/2]

QRect Array2::CellIntegerArea

(

const Circle2 &

circle

)

const

Compute the integer coordinates of the cells of the array embedding an input circle.

The coordinates are clamped to the size of the array.

Parameters

circle

The circle.

ClampVertexIndex()

void Array2::ClampVertexIndex ( int & i, int & j ) const

inline

Clamp vertex indexes to the size of the array.

Parameters

i,j	Vertex indexes

CodeToDir()

QPoint Array2::CodeToDir ( int c )

static

Convert an 8 bit integer code direction into a direction vector.

Parameters

c	Direction code.

DownSample()

Array2 Array2::DownSample ( int d ) const

inline

Downsample the array.

Parameters

d	Sampling factor.

Draw()

void Array2::Draw	(	QGraphicsScene &	scene,
		const QPen &	pen = QPen(),
		const QBrush &	brush = QBrush() ) const

Draw the cells of the lattice.

Parameters

scene	Graphics scene.
pen	The pen.
brush	The brush.

HalfCell()

void Array2::HalfCell	(	int	i,
		int	j,
		bool	d,
		Triangle2 &	ta,
		Triangle2 &	tb ) const

Return the geometry of the cell.

Parameters

i,j	Integer coordinates of the cell.
d	Boolean, direct diagonal if true, opposite diagonal otherwize.
ta,tb	Returned triangles.

ImageGrid()

QImage Array2::ImageGrid	(	const Box2 &	box,
		const double &	a ) const

Create a texture with a regular grid.

Parameters

box	The box.
a	Distance between lines.

Inside()

bool Array2::Inside ( const Vector2 & p ) const

inline

Check if a point is in the rectangular domain.

Parameters

p

Point.

InsideCellIndex() [1/2]

bool Array2::InsideCellIndex ( const QPoint & p ) const

inlineconstexprprotected

Check if the indexes are within range.

Parameters

p

Point.

InsideCellIndex() [2/2]

bool Array2::InsideCellIndex ( int i, int j ) const

inlineconstexprprotected

Check if the indexes are within range.

Parameters

i,j	Integer coordinates of the vertex.

InsideVertexIndex() [1/3]

bool Array2::InsideVertexIndex ( const QPoint & p ) const

inlineconstexpr

Check if the indexes are within range.

Parameters

p

Point.

InsideVertexIndex() [2/3]

bool Array2::InsideVertexIndex ( int i, int j ) const

inlineconstexpr

Check if the indexes are within range.

Parameters

i,j	Integer coordinates of the vertex.

InsideVertexIndex() [3/3]

bool Array2::InsideVertexIndex ( int i, int j, int k ) const

inlineconstexpr

Check if the indexes are within k-range.

Parameters

i,j	Integer coordinates of the vertex.
k	Thickness of the boundary around the domain

InverseCellIndex()

void Array2::InverseCellIndex ( int c, int & i, int & j ) const

inlineprotected

Compute the coordinates of a given cell.

Parameters

c	Index of the cell.
i,j	Integer coordinates of the cell.

InverseVertexIndex() [1/2]

QPoint Array2::InverseVertexIndex ( int c ) const

inlineconstexprprotected

Compute the coordinates of a given cell.

Parameters

c	Index of the cell.

InverseVertexIndex() [2/2]

void Array2::InverseVertexIndex ( int c, int & i, int & j ) const

inlineconstexprprotected

Compute the coordinates of a given cell.

Expensive function, with modulus operator.

Parameters

c	Index of the cell.
i,j	Integer coordinates of the cell.

NeighborCode()

int Array2::NeighborCode ( int a, int b )

static

Convert a direction to an 8 bit integer code.

Parameters

a,b	Neighbor direction vector.

Next()

QPoint Array2::Next ( const QPoint & p, int n ) const

inline

Compute the point next to another one.

Parameters

p	Point.
n	Next neighbor, should be in [0,7].

OutsideVertexIndex()

bool Array2::OutsideVertexIndex ( int i, int j ) const

inlineconstexpr

Check if the indexes are outside or on the border.

Parameters

i,j	Integer coordinates of the vertex.

Scale() [1/2]

void Array2::Scale

(

const double &

s

)

Scales the array structure.

Parameters

s	Scaling factor.

Scale() [2/2]

void Array2::Scale

(

const Vector2 &

s

)

Scales the lattice structure.

Parameters

s	Scaling vector.

Subdivide()

void Array2::Subdivide

(

)

Change the resolution.

Increases the resolution by two.

Translate()

void Array2::Translate

(

const Vector2 &

t

)

Translate the array.

Centering the array can be coded as:

Array2 a;
a.Translate(-a.Center());

Parameters

t	Translation vector.

UnitCell()

Box2 Array2::UnitCell

(

)

const

Return the geometry of a generic cell.

This is a box, centered at origin, with the right size.

UpSample()

Array2 Array2::UpSample ( int u ) const

inline

Upsample the array.

Parameters

u	Sampling factor.

VertexBorder()

QPoint Array2::VertexBorder

(

int

k

)

const

Compute the k-th point on the boundary of the domain.

Parameters

k	Integer index.

VertexBorderIndex()

int Array2::VertexBorderIndex	(	int	i,
		int	j ) const

Compute the index of a point on the boundary of the domain.

Parameters

i,j	Coordinates.

VertexIndex() [1/2]

int Array2::VertexIndex ( const QPoint & p ) const

inlineconstexpr

Compute the index of a given cell.

Parameters

p

Point.

VertexIndex() [2/2]

int Array2::VertexIndex ( int i, int j ) const

inlineconstexpr

Compute the index of a given cell.

Parameters

i,j	Integer coordinates of the cell.

VertexInteger() [1/3]

QPoint Array2::VertexInteger ( const Vector2 & p ) const

inline

Compute the coordinates of a vertex inside a cell.

Parameters

p

Point.

VertexInteger() [2/3]

QPoint Array2::VertexInteger ( const Vector2 & p, double & u, double & v ) const

inline

Compute the point on the lattice given an input point.

Parameters

p	Point.
u,v	Coordinates of the point in the corresponding cell.

VertexInteger() [3/3]

void Array2::VertexInteger ( const Vector2 & p, int & i, int & j ) const

inline

Compute the coordinates of a vertex inside a cell.

Parameters

p	Point.
i,j	Integer coordinates of the cell.

VertexIntegerArea() [1/4]

QRect Array2::VertexIntegerArea

(

const Box2 &

box

)

const

Compute the integer coordinates of the vertices embedding a box.

The coordinates are clamped to the size of the array.

Parameters

box

Box.

VertexIntegerArea() [2/4]

QRect Array2::VertexIntegerArea

(

const Circle2 &

circle

)

const

Compute the integer coordinates of the vertices embedding a circle.

The coordinates are clamped to the size of the array.

Parameters

circle

Circle.

VertexIntegerArea() [3/4]

QRect Array2::VertexIntegerArea

(

const QRect &

rect

)

const

Compute the integer coordinates span of the vertices embedding a rectangle.

Parameters

rect	Rectangle.

VertexIntegerArea() [4/4]

QRect Array2::VertexIntegerArea	(	int	i,
		int	j,
		int	r ) const

Compute the integer coordinates of the vertices embedding a cell with prescribed integer radius.

The coordinates are clamped to the size of the array.

Parameters

i,j	Cell.
r	Radius.

VertexUV()

Vector2 Box2::VertexUV ( const Vector2 & uv ) const

inline

Compute the coordinates of a point inside the box given uv coordinates.

Parameters

uv	Coordinates.

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream & s, const Array2 & a )

friend

Overloaded.

Parameters

s	Stream.
a	The array.