WXP::GridPoints Class Reference

This class creates an array a 2D points (x, y) More...

#include "../include/GridPoints.h"

Public Member Functions
int	init ()
int	init (int size)
	GridPoints ()
	GridPoints (int size)
	~GridPoints ()
	GridPoints (const GridPoints &data)
GridPoints	operator= (const GridPoints &data)
int	copy (const GridPoints &data)
int	copy (const GridPoints &data, int start, int rnum)
int	clear ()
int	expand (int size)
int	add (float x, float y)
int	add (GridPoint gpt)
int	add1 (GridPoint gpt)
int	add (int ind)
int	add1 (int ind)
int	set (int ind, float rx, float ry)
int	set (int ind, GridPoint &gpt)
int	get (int ind, GridPoint &gpt)
GridPoint	get (int ind)
int	remove (int ind)
int	insert (int ind, GridPoint &gpt)
int	insert (int ind, float x, float y)
float	getGX (int ind)
float	getGY (int ind)
float	getGX1 (int ind)
float	getGY1 (int ind)
int	getNum ()
int	offset (int ind, float rx, float ry)
int	offset (float rx, float ry)
int	within (GridPoint &gpt)
int	getCenter (GridPoint &gpt)
int	getCentroid (GridPoint &gpt)
int	getBoundingBox (Rect &box)
int	getPointsWithin (GridPoints &gpts)
int	print ()

Detailed Description

This class creates an array a 2D points (x, y)

Author

Dan Vietor

Constructor & Destructor Documentation

GridPoints() [1/3]

GridPoints::GridPoints

(

)

Constructor. Initializes the values.

References init().

GridPoints() [2/3]

GridPoints::GridPoints

(

int

size

)

Constructor. Size the arrays.

References init().

~GridPoints()

GridPoints::~GridPoints

(

)

Destructor.

GridPoints() [3/3]

GridPoints::GridPoints

(

const GridPoints &

data

)

Copy constructor.

Parameters

data	Strings class to copy from

References copy().

Member Function Documentation

add() [1/3]

int GridPoints::add	(	float	rx,
		float	ry
	)

Adds a new point.

Parameters

rx	Sets X
ry	Sets Y

References expand().

Referenced by add().

add() [2/3]

int GridPoints::add

(

GridPoint

gpt

)

Adds a new point.

Parameters

pt	GridPoint class with values

References expand().

add() [3/3]

int GridPoints::add

(

int

ind

)

Adds a new point from the existing list.

Parameters

ind	Index of point to copy to and of list

References add().

add1() [1/2]

int WXP::GridPoints::add1 ( GridPoint  gpt )

inline

Adds a point (no bounds check

Parameters

pt	GridPoint to add

add1() [2/2]

int WXP::GridPoints::add1 ( int  ind )

inline

Adds an existing point (no bounds check

Parameters

ind	Index of point to add

clear()

int WXP::GridPoints::clear ( )

inline

Clears point array

copy() [1/2]

int GridPoints::copy

(

const GridPoints &

data

)

Copy data.

Parameters

epts	Strings class to copy from

References init().

Referenced by GridPoints(), and operator=().

copy() [2/2]

int GridPoints::copy	(	const GridPoints &	data,
		int	start,
		int	rnum
	)

Copies a subset of point into array

Parameters

data	GridPoints
start	Starting point within data
rnum	Number of points to copy

References init().

expand()

int GridPoints::expand

(

int

size

)

Expands array size

Parameters

size

New size

Referenced by add(), and insert().

get() [1/2]

GridPoint GridPoints::get

(

int

ind

)

Gets a specific point value from array.

Parameters

ind	Index of value to get

Returns

Output GridPoint class with values

References get().

get() [2/2]

int GridPoints::get	(	int	ind,
		GridPoint &	gpt
	)

Gets a specific point value from array.

Parameters

ind	Index of value to get

Return values

pnt	Output GridPoint class with values

Referenced by get().

getCenter()

int GridPoints::getCenter

(

GridPoint &

gpt

)

Find a point at the center of the polygon

Return values

pt	Central point

References WXP::GridPoint::init(), and within().

getCentroid()

int GridPoints::getCentroid

(

GridPoint &

gpt

)

Find the centroid of the polygon (averages X and Y). Centroid can be outside of polygon.

Return values

pt	Centroid point

getGX()

float WXP::GridPoints::getGX ( int  ind )

inline

Returns X value

Parameters

ind	Index in array

References WXP::Const::MISS.

getGX1()

float WXP::GridPoints::getGX1 ( int  ind )

inline

Returns X value (no bounds check)

Parameters

ind	Index in array

getGY()

float WXP::GridPoints::getGY ( int  ind )

inline

Returns Y value

Parameters

ind	Index in array

References WXP::Const::MISS.

getGY1()

float WXP::GridPoints::getGY1 ( int  ind )

inline

Returns Y value (no bounds check)

Parameters

ind	Index in array

getNum()

int WXP::GridPoints::getNum ( )

inline

Return the number of points

init() [1/2]

int GridPoints::init

(

)

Initializes the values

Referenced by copy(), and GridPoints().

init() [2/2]

int GridPoints::init

(

int

size

)

Initializes the values

insert() [1/2]

int GridPoints::insert	(	int	ind,
		float	rx,
		float	ry
	)

Insert a point into the array

Parameters

ind	Index to insert the point
rx	X value
ry	Y value

References expand().

insert() [2/2]

int GridPoints::insert	(	int	ind,
		GridPoint &	gpt
	)

Insert a point into the array

Parameters

ind	Index to insert the point
pt	GridPoint to insert

References insert().

Referenced by insert().

offset() [1/2]

int GridPoints::offset	(	float	rx,
		float	ry
	)

Offsets the entire array.

Parameters

rx	New x value
ry	New y value

offset() [2/2]

int GridPoints::offset	(	int	ind,
		float	rx,
		float	ry
	)

Offsets a specific point value in array.

Parameters

ind	Index of value to set
rx	New x value
ry	New y value

operator=()

GridPoints GridPoints::operator=

(

const GridPoints &

data

)

Assignment operator. Used to overload copying

Parameters

data	String class to copy from

References copy().

print()

int GridPoints::print

(

)

Prints the values to standard output.

remove()

int GridPoints::remove

(

int

ind

)

Deletes a specific point from array.

Parameters

ind	Index of point to delete

set() [1/2]

int GridPoints::set	(	int	ind,
		float	rx,
		float	ry
	)

Sets a specific point value in array.

Parameters

ind	Index of value to set
rx	New x value
ry	New y value

set() [2/2]

int GridPoints::set	(	int	ind,
		GridPoint &	gpt
	)

Sets a specific point value in array.

Parameters

ind	Index of value to set
pnt	New values

within()

int GridPoints::within

(

GridPoint &

gpt

)

Determines if a point is within the array.

Parameters

pt	GridPoint to check

Referenced by getCenter().

---

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

• GridPoints.h
• GridPoints.cc