geo_functions.cpp File Reference

#include "geo_tools.h"
#include "mat_tools.h"

Go to the source code of this file.

Macros
#define	A   Triangle[0]
#define	B   Triangle[1]
#define	C   Triangle[2]

Functions
bool	SG_Is_Equal (double a, double b, double epsilon)
bool	SG_Is_Equal (const TSG_Point &A, const TSG_Point &B, double epsilon)
bool	SG_Is_Between (double x, double a, double b, double epsilon)
bool	SG_Is_Between (const TSG_Point &Point, const TSG_Point &Corner_A, const TSG_Point &Corner_B, double epsilon)
double	SG_Get_Length (double dx, double dy)
double	SG_Get_Distance (double ax, double ay, double bx, double by, bool bPolar)
double	SG_Get_Distance (const TSG_Point &A, const TSG_Point &B, bool bPolar)
double	SG_Get_Distance (double ax, double ay, double bx, double by)
double	SG_Get_Distance (const TSG_Point &A, const TSG_Point &B)
double	SG_Get_Distance (double ax, double ay, double az, double bx, double by, double bz)
double	SG_Get_Distance (const TSG_Point_3D &A, const TSG_Point_3D &B)
double	SG_Get_Distance_Polar (double aLon, double aLat, double bLon, double bLat, double a, double e, bool bDegree)
double	SG_Get_Distance_Polar (const TSG_Point &A, const TSG_Point &B, double a, double e, bool bDegree)
double	SG_Get_Angle_Of_Direction (double dx, double dy)
double	SG_Get_Angle_Of_Direction (double ax, double ay, double bx, double by)
double	SG_Get_Angle_Of_Direction (const TSG_Point &A)
double	SG_Get_Angle_Of_Direction (const TSG_Point &A, const TSG_Point &B)
double	SG_Get_Angle_Difference (double a, double b)
bool	SG_is_Angle_Between (double Angle, double Angle_Min, double Angle_Max, bool bCheckRange)
bool	SG_Get_Crossing (TSG_Point &Crossing, const TSG_Point &a1, const TSG_Point &a2, const TSG_Point &b1, const TSG_Point &b2, bool bExactMatch)
bool	SG_Get_Crossing_InRegion (TSG_Point &Crossing, const TSG_Point &a, const TSG_Point &b, const TSG_Rect &Region)
bool	SG_Is_Point_On_Line (const TSG_Point &Point, const TSG_Point &Line_A, const TSG_Point &Line_B, bool bExactMatch, double Epsilon)
double	SG_Get_Distance_To_Line (const TSG_Point &Point, const TSG_Point &Line_A, const TSG_Point &Line_B, bool bExactMatch)
double	SG_Get_Nearest_Point_On_Line (const TSG_Point &Point, const TSG_Point &Line_A, const TSG_Point &Line_B, TSG_Point &Line_Point, bool bExactMatch)
bool	SG_Get_Triangle_CircumCircle (TSG_Point Triangle[3], TSG_Point &Point, double &Radius)
double	SG_Get_Polygon_Area (TSG_Point *Points, int nPoints)
double	SG_Get_Polygon_Area (const CSG_Points &Points)

Macro Definition Documentation

A

#define A   Triangle[0]

B

#define B   Triangle[1]

C

#define C   Triangle[2]

Function Documentation

SG_Get_Angle_Difference()

double SG_Get_Angle_Difference	(	double	a,
		double	b
	)

Definition at line 247 of file geo_functions.cpp.

References M_PI_180, and M_PI_360.

SG_Get_Angle_Of_Direction() [1/4]

double SG_Get_Angle_Of_Direction

(

const TSG_Point &

A

)

Definition at line 235 of file geo_functions.cpp.

References A, and SG_Get_Angle_Of_Direction().

SG_Get_Angle_Of_Direction() [2/4]

double SG_Get_Angle_Of_Direction	(	const TSG_Point &	A,
		const TSG_Point &	B
	)

Definition at line 241 of file geo_functions.cpp.

References A, B, and SG_Get_Angle_Of_Direction().

SG_Get_Angle_Of_Direction() [3/4]

double SG_Get_Angle_Of_Direction	(	double	ax,
		double	ay,
		double	bx,
		double	by
	)

Definition at line 229 of file geo_functions.cpp.

References SG_Get_Angle_Of_Direction().

SG_Get_Angle_Of_Direction() [4/4]

double SG_Get_Angle_Of_Direction	(	double	dx,
		double	dy
	)

Definition at line 216 of file geo_functions.cpp.

References M_PI_090, M_PI_180, and M_PI_360.

Referenced by SG_Get_Angle_Of_Direction().

SG_Get_Crossing()

bool SG_Get_Crossing	(	TSG_Point &	Crossing,
		const TSG_Point &	a1,
		const TSG_Point &	a2,
		const TSG_Point &	b1,
		const TSG_Point &	b2,
		bool	bExactMatch
	)

Definition at line 280 of file geo_functions.cpp.

References M_GET_MAX, M_GET_MIN, SSG_Point::x, and SSG_Point::y.

Referenced by CSG_TIN_Triangle::is_Containing(), CSG_Shape_Line::On_Intersects(), CSG_Shape_Polygon::On_Intersects(), SG_Get_Crossing_InRegion(), SG_Get_Nearest_Point_On_Line(), and SG_Get_Triangle_CircumCircle().

SG_Get_Crossing_InRegion()

bool SG_Get_Crossing_InRegion	(	TSG_Point &	Crossing,
		const TSG_Point &	a,
		const TSG_Point &	b,
		const TSG_Rect &	Region
	)

Definition at line 342 of file geo_functions.cpp.

References SG_Get_Crossing(), SSG_Point::x, SSG_Rect::xMax, SSG_Rect::xMin, SSG_Point::y, SSG_Rect::yMax, and SSG_Rect::yMin.

Referenced by CSG_Shape_Line::On_Intersects(), and CSG_Shape_Polygon::On_Intersects().

SG_Get_Distance() [1/6]

double SG_Get_Distance	(	const TSG_Point &	A,
		const TSG_Point &	B
	)

Definition at line 124 of file geo_functions.cpp.

References A, and B.

SG_Get_Distance() [2/6]

double SG_Get_Distance	(	const TSG_Point &	A,
		const TSG_Point &	B,
		bool	bPolar
	)

Definition at line 109 of file geo_functions.cpp.

References A, B, SG_Get_Distance(), and SG_Get_Distance_Polar().

SG_Get_Distance() [3/6]

double SG_Get_Distance	(	const TSG_Point_3D &	A,
		const TSG_Point_3D &	B
	)

Definition at line 145 of file geo_functions.cpp.

References A, and B.

SG_Get_Distance() [4/6]

double SG_Get_Distance	(	double	ax,
		double	ay,
		double	az,
		double	bx,
		double	by,
		double	bz
	)

Definition at line 135 of file geo_functions.cpp.

SG_Get_Distance() [5/6]

double SG_Get_Distance	(	double	ax,
		double	ay,
		double	bx,
		double	by
	)

Definition at line 115 of file geo_functions.cpp.

SG_Get_Distance() [6/6]

double SG_Get_Distance	(	double	ax,
		double	ay,
		double	bx,
		double	by,
		bool	bPolar
	)

Definition at line 103 of file geo_functions.cpp.

References SG_Get_Distance(), and SG_Get_Distance_Polar().

Referenced by CSG_Shape_Polygon_Part::_Add_Edge_Points(), CSG_Shape_Polygon_Part::_Update_Area(), CSG_Shape_Point::Get_Distance(), CSG_Shape_Points::Get_Distance(), CSG_Shape_Line::Get_Length(), CSG_Lines::Get_Length(), CSG_PointCloud::Get_Shape(), SG_Get_Distance(), and SG_Get_Nearest_Point_On_Line().

SG_Get_Distance_Polar() [1/2]

double SG_Get_Distance_Polar	(	const TSG_Point &	A,
		const TSG_Point &	B,
		double	a,
		double	e,
		bool	bDegree
	)

Definition at line 203 of file geo_functions.cpp.

References A, B, and SG_Get_Distance_Polar().

SG_Get_Distance_Polar() [2/2]

double SG_Get_Distance_Polar	(	double	aLon,
		double	aLat,
		double	bLon,
		double	bLat,
		double	a,
		double	e,
		bool	bDegree
	)

Definition at line 157 of file geo_functions.cpp.

References C, M_DEG_TO_RAD, and SG_Get_Square().

Referenced by SG_Get_Distance(), and SG_Get_Distance_Polar().

SG_Get_Distance_To_Line()

double SG_Get_Distance_To_Line	(	const TSG_Point &	Point,
		const TSG_Point &	Line_A,
		const TSG_Point &	Line_B,
		bool	bExactMatch
	)

Definition at line 413 of file geo_functions.cpp.

References SG_Get_Nearest_Point_On_Line().

SG_Get_Length()

double SG_Get_Length	(	double	dx,
		double	dy
	)

Definition at line 97 of file geo_functions.cpp.

SG_Get_Nearest_Point_On_Line()

double SG_Get_Nearest_Point_On_Line	(	const TSG_Point &	Point,
		const TSG_Point &	Line_A,
		const TSG_Point &	Line_B,
		TSG_Point &	Line_Point,
		bool	bExactMatch
	)

Definition at line 421 of file geo_functions.cpp.

References SG_Get_Crossing(), SG_Get_Distance(), SG_IS_BETWEEN, SSG_Point::x, and SSG_Point::y.

Referenced by CSG_Shape_Polygon_Part::Get_Distance(), CSG_Shape_Line::Get_Distance(), and SG_Get_Distance_To_Line().

SG_Get_Polygon_Area() [1/2]

double SG_Get_Polygon_Area

(

const CSG_Points &

Points

)

Definition at line 534 of file geo_functions.cpp.

References CSG_Points::Get_Count().

SG_Get_Polygon_Area() [2/2]

double SG_Get_Polygon_Area	(	TSG_Point *	Points,
		int	nPoints
	)

Definition at line 514 of file geo_functions.cpp.

References SSG_Point::x, and SSG_Point::y.

Referenced by CSG_TIN_Node::Get_Polygon_Area().

SG_Get_Triangle_CircumCircle()

bool SG_Get_Triangle_CircumCircle	(	TSG_Point	Triangle[3],
		TSG_Point &	Point,
		double &	Radius
	)

Definition at line 465 of file geo_functions.cpp.

References A, B, C, SG_Get_Crossing(), SSG_Point::x, and SSG_Point::y.

SG_is_Angle_Between()

bool SG_is_Angle_Between	(	double	Angle,
		double	Angle_Min,
		double	Angle_Max,
		bool	bCheckRange
	)

Definition at line 257 of file geo_functions.cpp.

References M_PI_360.

SG_Is_Between() [1/2]

bool SG_Is_Between	(	const TSG_Point &	Point,
		const TSG_Point &	Corner_A,
		const TSG_Point &	Corner_B,
		double	epsilon
	)

Definition at line 83 of file geo_functions.cpp.

References SG_Is_Between(), SSG_Point::x, and SSG_Point::y.

SG_Is_Between() [2/2]

bool SG_Is_Between	(	double	x,
		double	a,
		double	b,
		double	epsilon
	)

Definition at line 77 of file geo_functions.cpp.

Referenced by SG_Is_Between(), and SG_Is_Point_On_Line().

SG_Is_Equal() [1/2]

bool SG_Is_Equal	(	const TSG_Point &	A,
		const TSG_Point &	B,
		double	epsilon
	)

Definition at line 70 of file geo_functions.cpp.

References A, B, and SG_Is_Equal().

SG_Is_Equal() [2/2]

bool SG_Is_Equal	(	double	a,
		double	b,
		double	epsilon
	)

Definition at line 64 of file geo_functions.cpp.

Referenced by CSG_Rect::is_Equal(), SG_Is_Equal(), and SG_Is_Point_On_Line().

SG_Is_Point_On_Line()

bool SG_Is_Point_On_Line	(	const TSG_Point &	Point,
		const TSG_Point &	Line_A,
		const TSG_Point &	Line_B,
		bool	bExactMatch,
		double	Epsilon
	)

Definition at line 394 of file geo_functions.cpp.

References SG_Is_Between(), SG_Is_Equal(), SSG_Point::x, and SSG_Point::y.

Referenced by CSG_Shape_Polygon_Part::_Add_Edge_Points(), and CSG_Shape_Polygon_Part::_is_OnEdge().