correa::Polygon Class Reference

#include <Polygon.h>

Public Member Functions
	Polygon (Polygon &polygon)
Polygon &	operator= (const Polygon &other)
double	area ()
double	originalArea ()
double	length ()
void	centerScale (double range, int iscale)
void	centerScaleArea ()
void	scaleArea ()
void	boundaryLength0 ()
void	boundaryLength ()
void	distorsion ()
void	shift (Vector2D center, bool verbose)
int	size ()
void	labelPolygon (const double EPSILON)
Vector2D	calculateCentroid ()
bool	isPointInside (const Vector2D &point) const

Public Attributes
std::vector< Vertex >	vertices
std::vector< double >	bdLength0
std::vector< double >	bdLength
double	distorsion_
double	originalArea_
std::vector< std::pair< int, int > >	edges

Detailed Description

Polygon class Stores the polygon and calculates various information about it.

Constructor & Destructor Documentation

Polygon()

correa::Polygon::Polygon

(

Polygon &

polygon

)

Copy constructor.

Member Function Documentation

area()

double correa::Polygon::area

(

)

Calculates the area of polygon.

boundaryLength()

void correa::Polygon::boundaryLength

(

)

Calculates the length of boundary edges.

boundaryLength0()

void correa::Polygon::boundaryLength0

(

)

Calculates the length of boundary edges.

centerScale()

void correa::Polygon::centerScale	(	double	range,
		int	iscale )

Center and rescale the polygon. Automatically recenters to the center of mass of the vertices.

Parameters

range
iscale

centerScaleArea()

void correa::Polygon::centerScaleArea

(

)

Center and rescale the polygon. Automatically recenters to the center of mass of the vertices.

distorsion()

void correa::Polygon::distorsion

(

)

Calculates the distorsion in edge lengths.

isPointInside()

bool correa::Polygon::isPointInside

(

const Vector2D &

point

)

const

Computes the signed distance from a point to the polygon outline. Positive distance indicates the point is outside the polygon, negative distance indicates the point is inside the polygon.

Parameters

point

The point to compute the distance from.

Returns

The signed distance to the polygon outline.

Checks if a point is inside the polygon using the ray casting algorithm. This implements the Jordan curve theorem: a point is inside a polygon if a ray from the point crosses the polygon boundary an odd number of times.

Parameters

point

The point to check

Returns

true if the point is inside the polygon, false otherwise

length()

double correa::Polygon::length

(

)

Calculates the length of polygon.

operator=()

Polygon & correa::Polygon::operator=

(

const Polygon &

other

)

Assignment operator - properly handles prev/next iterator relinking

scaleArea()

void correa::Polygon::scaleArea

(

)

Rescale the polygon. Automatically recenters to the center of mass of the vertices.

---

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

• Polygon.h