envitia::maplink::earth::geometry::Polygon Class Reference

Inheritance diagram for envitia::maplink::earth::geometry::Polygon:

Detailed Description

A Polygon primitive.

A Polygon is a Plane in 3D space defined by one outer edge and zero or more inners. Edges are defined as point sets in geodetic space. Edges are 'open' - The last point does not need to be the same as the first.

Public Member Functions
	Polygon ()
	Constructor.
	Polygon (const char *style)
	Polygon (const char *style, const GeodeticPointSet &o)
	Polygon (const Polygon &other)
	Copy Constructor.
virtual	~Polygon ()
	Destructor.
virtual GeometryType	type () const
	Query the type of the geometry instance.
virtual Geometry *	clone () const
const GeodeticPointSet &	outer () const
	Query the outer of the Polygon.
void	outer (const GeodeticPointSet &coords)
	Set the outer of the Polygon.
unsigned int	addInner (GeodeticPointSet &coords)
unsigned int	numInners () const
	Query the number of inners (holes) in the Polygon.
void	inner (unsigned int index, const GeodeticPointSet &coords)
const GeodeticPointSet &	inner (unsigned int index) const
Public Member Functions inherited from envitia::maplink::earth::geometry::Geometry
virtual	~Geometry ()
	Destructor.
const char *	styleName () const
	Query the style used when rendering the geometry.
void	styleName (const char *style)
Interpolation	interpolation () const
void	interpolation (Interpolation i)
	Set the type of interpolation applied to edges.
void	visibility (bool v)
void	visibilityOnSurface (bool v, const Surface3D *surface)
bool	visibilityOnSurface (const Surface3D *surface) const
bool	setAttribute (const char *name, const char *value)
const char *	getAttribute (const char *name) const
bool	removeAttribute (const char *name)
unsigned int	numAttributes () const
const char *	attributeName (unsigned int index) const
const char *	attributeValue (unsigned int index) const
bool	removeAttribute (unsigned int index)
GeodeticPoint	centroid () const
	Query the centroid of the geometry.
void	translate (const GeodeticPoint &t)
void	scale (const GeodeticPoint &s)
void	scale (const GeodeticPoint &s, const GeodeticPoint &origin)
void	rotate (const GeodeticDirection &axis, double angle)

Additional Inherited Members
Public Types inherited from envitia::maplink::earth::geometry::Geometry
enum	GeometryType {   GeometryTypePolyline , GeometryTypePolygon , GeometryTypeSymbol , GeometryTypeText ,   GeometryTypeSet }
	The type of a geometry instance. More...
enum	Interpolation { GreatCircle , RhumbLine }
Protected Member Functions inherited from envitia::maplink::earth::geometry::Geometry
	Geometry ()
	Geometry (const char *style)
	Geometry (const Geometry &other)
Protected Attributes inherited from envitia::maplink::earth::geometry::Geometry
void *	m_p

Constructor & Destructor Documentation

Polygon() [1/4]

envitia::maplink::earth::geometry::Polygon::Polygon

(

)

Constructor.

Polygon() [2/4]

envitia::maplink::earth::geometry::Polygon::Polygon

(

const char *

style

)

Constructor

Parameters

style

The name of the style to use when rendering.

Polygon() [3/4]

envitia::maplink::earth::geometry::Polygon::Polygon	(	const char *	style,
		const GeodeticPointSet &	o )

Constructor

Parameters

style	The name of the style to use when rendering.
o	The coordinate set which defines the outer edge.

Polygon() [4/4]

envitia::maplink::earth::geometry::Polygon::Polygon

(

const Polygon &

other

)

Copy Constructor.

~Polygon()

virtual envitia::maplink::earth::geometry::Polygon::~Polygon ( )

virtual

Destructor.

Member Function Documentation

addInner()

unsigned int envitia::maplink::earth::geometry::Polygon::addInner

(

GeodeticPointSet &

coords

)

Add an inner (hole) to the Polygon.

Parameters

coords

The coordinates of the inner.

Returns

The index of the new inner, which may be used with other inner access methods.

clone()

virtual Geometry * envitia::maplink::earth::geometry::Polygon::clone ( ) const

virtual

Create a clone of this geometry

If the geometry is a set this will perform a deep copy (All children of the set will be cloned).

Implements envitia::maplink::earth::geometry::Geometry.

inner() [1/2]

const GeodeticPointSet & envitia::maplink::earth::geometry::Polygon::inner

(

unsigned int

index

)

const

Query the coordinates of an inner.

Parameters

index

The index to query.

Returns

The coordinates of the inner, or an empty set if index >= numInners().

inner() [2/2]

void envitia::maplink::earth::geometry::Polygon::inner	(	unsigned int	index,
		const GeodeticPointSet &	coords )

Update an inner (hole) within the Polygon.

If index is >= numInners this method will add a new inner with the provided coordinates.

Parameters

index	The index of the inner to update.
coords	The new coordinates for the inner.

numInners()

unsigned int envitia::maplink::earth::geometry::Polygon::numInners

(

)

const

Query the number of inners (holes) in the Polygon.

outer() [1/2]

const GeodeticPointSet & envitia::maplink::earth::geometry::Polygon::outer

(

)

const

Query the outer of the Polygon.

outer() [2/2]

void envitia::maplink::earth::geometry::Polygon::outer

(

const GeodeticPointSet &

coords

)

Set the outer of the Polygon.

type()

virtual GeometryType envitia::maplink::earth::geometry::Polygon::type ( ) const

virtual

Query the type of the geometry instance.

Implements envitia::maplink::earth::geometry::Geometry.