#include <PolygonArea.h>

Public Member Functions
void	AddEdge (double azi, double s)

void	AddPoint (double lat, double lon)

void	Clear ()

unsigned	Compute (bool reverse, bool sign, [System::Runtime::InteropServices::Out] double% perimeter, [System::Runtime::InteropServices::Out] double% area)

	PolygonAreaExact (const bool polyline)

	PolygonAreaExact (GeodesicExact^ earth, bool polyline)

unsigned	TestEdge (double azi, double s, bool reverse, bool sign, [System::Runtime::InteropServices::Out] double% perimeter, [System::Runtime::InteropServices::Out] double% area)

unsigned	TestPoint (double lat, double lon, bool reverse, bool sign, [System::Runtime::InteropServices::Out] double% perimeter, [System::Runtime::InteropServices::Out] double% area)

	~PolygonAreaExact ()

Private Member Functions
	!PolygonAreaExact (void)

Private Attributes
GeographicLib::PolygonAreaExact *	m_pPolygonArea

Inspector functions
property double	MajorRadius { double get()

property double	Flattening { double get()

void	CurrentPoint ([System::Runtime::InteropServices::Out] double% lat, [System::Runtime::InteropServices::Out] double% lon)

Detailed Description

Definition at line 217 of file PolygonArea.h.

Constructor & Destructor Documentation

◆ !PolygonAreaExact()

PolygonAreaExact::!PolygonAreaExact ( void )

private

Definition at line 135 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ PolygonAreaExact() [1/2]

PolygonAreaExact::PolygonAreaExact	(	GeodesicExact^	earth,
		bool	polyline
	)

Constructor for PolygonArea.

Parameters

[in]	earth	the Geodesic object to use for geodesic calculations.
[in]	polyline	if true that treat the points as defining a polyline instead of a polygon.

Definition at line 145 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ PolygonAreaExact() [2/2]

PolygonAreaExact::PolygonAreaExact ( const bool polyline )

Constructor for PolygonArea that assumes a WGS84 ellipsoid.

Parameters

[in] polyline if true that treat the points as defining a polyline instead of a polygon.

Definition at line 161 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ ~PolygonAreaExact()

NETGeographicLib::PolygonAreaExact::~PolygonAreaExact ( )

inline

The destructor calls the finalizer.

Definition at line 247 of file PolygonArea.h.

Member Function Documentation

◆ AddEdge()

void PolygonAreaExact::AddEdge	(	double	azi,
		double	s
	)

Add an edge to the polygon or polyline.

Parameters

[in]	azi	azimuth at current point (degrees).
[in]	s	distance from current point to next point (meters).

This does nothing if no points have been added yet. Use PolygonArea::CurrentPoint to determine the position of the new vertex.

Definition at line 184 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ AddPoint()

void PolygonAreaExact::AddPoint	(	double	lat,
		double	lon
	)

Add a point to the polygon or polyline.

Parameters

[in]	lat	the latitude of the point (degrees).
[in]	lon	the longitude of the point (degrees).

lat should be in the range [−90°, 90°].

Definition at line 178 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ Clear()

void PolygonAreaExact::Clear ( )

Clear PolygonArea, allowing a new polygon to be started.

Definition at line 175 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ Compute()

unsigned PolygonAreaExact::Compute	(	bool	reverse,
		bool	sign,
		[System::Runtime::InteropServices::Out] double%	perimeter,
		[System::Runtime::InteropServices::Out] double%	area
	)

Return the results so far.

Parameters

[in]	reverse	if true then clockwise (instead of counter-clockwise) traversal counts as a positive area.
[in]	sign	if true then return a signed result for the area if the polygon is traversed in the "wrong" direction instead of returning the area for the rest of the earth.
[out]	perimeter	the perimeter of the polygon or length of the polyline (meters).
[out]	area	the area of the polygon (meters²); only set if polyline is false in the constructor.

Returns: the number of points.

Definition at line 190 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ CurrentPoint()

void PolygonAreaExact::CurrentPoint	(	[System::Runtime::InteropServices::Out] double%	lat,
		[System::Runtime::InteropServices::Out] double%	lon
	)

Report the previous vertex added to the polygon or polyline.

Parameters

[out]	lat	the latitude of the point (degrees).
[out]	lon	the longitude of the point (degrees).

If no points have been added, then NaNs are returned. Otherwise, lon will be in the range [−180°, 180°).

Definition at line 226 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ TestEdge()

unsigned PolygonAreaExact::TestEdge	(	double	azi,
		double	s,
		bool	reverse,
		bool	sign,
		[System::Runtime::InteropServices::Out] double%	perimeter,
		[System::Runtime::InteropServices::Out] double%	area
	)

Return the results assuming a tentative final test point is added via an azimuth and distance; however, the data for the test point is not saved. This lets you report a running result for the perimeter and area as the user moves the mouse cursor. Ordinary floating point arithmetic is used to accumulate the data for the test point; thus the area and perimeter returned are less accurate than if PolygonArea::AddEdge and PolygonArea::Compute are used.

Parameters

[in]	azi	azimuth at current point (degrees).
[in]	s	distance from current point to final test point (meters).
[in]	reverse	if true then clockwise (instead of counter-clockwise) traversal counts as a positive area.
[in]	sign	if true then return a signed result for the area if the polygon is traversed in the "wrong" direction instead of returning the area for the rest of the earth.
[out]	perimeter	the approximate perimeter of the polygon or length of the polyline (meters).
[out]	area	the approximate area of the polygon (meters²); only set if polyline is false in the constructor.

Returns: the number of points.

Definition at line 214 of file dotnet/NETGeographicLib/PolygonArea.cpp.

◆ TestPoint()

unsigned PolygonAreaExact::TestPoint	(	double	lat,
		double	lon,
		bool	reverse,
		bool	sign,
		[System::Runtime::InteropServices::Out] double%	perimeter,
		[System::Runtime::InteropServices::Out] double%	area
	)

Return the results assuming a tentative final test point is added; however, the data for the test point is not saved. This lets you report a running result for the perimeter and area as the user moves the mouse cursor. Ordinary floating point arithmetic is used to accumulate the data for the test point; thus the area and perimeter returned are less accurate than if PolygonArea::AddPoint and PolygonArea::Compute are used.

Parameters

[in]	lat	the latitude of the test point (degrees).
[in]	lon	the longitude of the test point (degrees).
[in]	reverse	if true then clockwise (instead of counter-clockwise) traversal counts as a positive area.
[in]	sign	if true then return a signed result for the area if the polygon is traversed in the "wrong" direction instead of returning the area for the rest of the earth.
[out]	perimeter	the approximate perimeter of the polygon or length of the polyline (meters).
[out]	area	the approximate area of the polygon (meters²); only set if polyline is false in the constructor.

Returns: the number of points.

lat should be in the range [−90°, 90°].

Definition at line 202 of file dotnet/NETGeographicLib/PolygonArea.cpp.

Member Data Documentation

◆ Flattening

property double NETGeographicLib::PolygonAreaExact::Flattening { double get()

Returns: f the flattening of the ellipsoid. This is the value inherited from the Geodesic object used in the constructor.

Definition at line 364 of file PolygonArea.h.

◆ m_pPolygonArea

GeographicLib::PolygonAreaExact* NETGeographicLib::PolygonAreaExact::m_pPolygonArea

private

Definition at line 221 of file PolygonArea.h.

◆ MajorRadius

property double NETGeographicLib::PolygonAreaExact::MajorRadius { double get()

Returns: a the equatorial radius of the ellipsoid (meters). This is the value inherited from the Geodesic object used in the constructor.

Definition at line 358 of file PolygonArea.h.

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

Public Member Functions

Private Member Functions

Private Attributes

Inspector functions

Detailed Description

Constructor & Destructor Documentation

◆ !PolygonAreaExact()

◆ PolygonAreaExact() [1/2]

◆ PolygonAreaExact() [2/2]

◆ ~PolygonAreaExact()

Member Function Documentation

◆ AddEdge()

◆ AddPoint()

◆ Clear()

◆ Compute()

◆ CurrentPoint()

◆ TestEdge()

◆ TestPoint()

Member Data Documentation

◆ Flattening

◆ m_pPolygonArea

◆ MajorRadius