Polygon Class Reference

Contains the description of a polygon, now with mutable. The traverse is stored. More...

#include <polygon.h>

Inheritance diagram for Polygon:

Collaboration diagram for Polygon:

Public Member Functions
	Polygon (int n)
	Constructs a regular polygon with vertices on the unit circle. More...
	Polygon (Polygon const &)=default
std::string	classname () const override
void	append (const Point2D &a)
	Adds a vertex to the end of the polygon traverse. More...
int	number () const
	Number of vertices in polygon. More...
float	perimeter () const
	Computes the perimeter of the closed polygon. More...
float	area () const override
	Computes the area of the closed polygon. More...
bool	operator< (const Polygon &rhs) const
	Less operator regarding the perimeter. More...
Public Member Functions inherited from Form
	Form (float x, float y)
	Form (Form const &)=default
float	GetX () const
float	GetY () const
virtual	~Form ()

Detailed Description

Contains the description of a polygon, now with mutable. The traverse is stored.

Definition at line 27 of file polygon.h.

Constructor & Destructor Documentation

Polygon() [1/2]

Polygon::Polygon

(

int

n

)

Constructs a regular polygon with vertices on the unit circle.

Parameters

[in]

n

number of vertices in the polygon

Warning

We use a mutable member _peri which should be defined -1 whenever the class instance has been changed.

Definition at line 33 of file polygon.cpp.

Polygon() [2/2]

Polygon::Polygon ( Polygon const &  )

default

Member Function Documentation

append()

void Polygon::append ( const Point2D &  a )

inline

Adds a vertex to the end of the polygon traverse.

Parameters

[in]

a

2d point to add.

Definition at line 48 of file polygon.h.

area()

float Polygon::area ( ) const

overridevirtual

Computes the area of the closed polygon.

Returns

Area of the closed polygon

Warning

Uses a mutable variable

Implements Form.

Definition at line 58 of file polygon.cpp.

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classname()

std::string Polygon::classname ( ) const

inlineoverridevirtual

Reimplemented from Form.

Definition at line 39 of file polygon.h.

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number()

int Polygon::number ( ) const

inline

Number of vertices in polygon.

Returns

Number of vertices of the open polygon

Definition at line 54 of file polygon.h.

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operator<()

bool Polygon::operator< ( const Polygon &  rhs ) const

inline

Less operator regarding the perimeter.

Parameters

[in]

rhs

second polygon.

Returns

True iff perimeter of recent instance is less than the perimeter of the second instance.

Definition at line 76 of file polygon.h.

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perimeter()

float Polygon::perimeter

(

)

const

Computes the perimeter of the closed polygon.

Returns

Perimeter of the closed polygon

Warning

Uses a mutable variable

Definition at line 44 of file polygon.cpp.

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

• polygon.h
• polygon.cpp