Polygon Struct Reference

Represents a polygon as a list of vertices in CCW order. More...

Public Member Functions
void	addVert (Coord vert)
	Add a vertex to the polygon. More...
unsigned int	size () const
	Get the number of vertices in the polygon. More...
Edge	edge (unsigned int i) const
	Construct an edge of the polygon given the index of the first vertex. More...
bool	adjacent (Polygon &p, int *edgeIndex1=NULL, int *edgeIndex2=NULL) const
	Determine if the polygon is adjacent. More...
Coord	center () const
	Get the center of the polygon. More...
std::string	str () const
	Get the string representation of the polygon. More...
Polygon &	operator= (const Polygon &op)
	Overloaded assignment operator.

Public Attributes
std::vector< Coord >	v
	The vertices of the polygon in CCW order. More...

Detailed Description

Represents a polygon as a list of vertices in CCW order.

Member Function Documentation

addVert()

void Polygon::addVert ( Coord  vert )

inline

Add a vertex to the polygon.

Parameters

vert	the vertex to add

See also

Coord

adjacent()

bool Polygon::adjacent ( Polygon &  p, int *  edgeIndex1 = NULL, int *  edgeIndex2 = NULL  ) const

inline

Determine if the polygon is adjacent.

Parameters

p	the polygon
edgeIndex1	if not null, stores the index of the shared edge for this polygon
edgeIndex2	if not null, stores the index of the shared edge for p

Returns

true if adjacent and stores indeces in edgeIndex1 and edgeIndex2 if not null, else false and stores -1 in edgeIndex1 and edgeIndex2 if not null

center()

Coord Polygon::center ( ) const

inline

Get the center of the polygon.

Returns

the approximate center of the polygon as a Coord

See also

Coord

edge()

Edge Polygon::edge ( unsigned int  i ) const

inline

Construct an edge of the polygon given the index of the first vertex.

Parameters

i	index of the first vertex

Returns

the corresponding edge

See also

Edge

size()

unsigned int Polygon::size ( ) const

inline

Get the number of vertices in the polygon.

Returns

the number of vertices

str()

std::string Polygon::str ( ) const

inline

Get the string representation of the polygon.

Returns

the string representation of the polygon

Member Data Documentation

v

std::vector<Coord> Polygon::v

The vertices of the polygon in CCW order.

See also

Coord

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

• Polygon.cpp