Public 成员函数
	GPnt2d ()

	GPnt2d (GXY theCoord)

	GPnt2d (double theXp, double theYp)

void	SetCoord (int theIndex, double theXi)

void	SetCoord (double theXp, double theYp)

void	SetX (double theX)

void	SetY (double theY)

void	SetXY (GXY theCoord)

double	Coord (int theIndex)

void	Coord (double[] theXp, double[] theYp)

double	X ()

double	Y ()

GXY	XY ()

GXY	Coord ()

GXY	ChangeCoord ()

boolean	IsEqual (GPnt2d theOther, double theLinearTolerance)

double	Distance (GPnt2d theOther)

double	SquareDistance (GPnt2d theOther)

void	Mirror (GPnt2d theP)

GPnt2d	Mirrored (GPnt2d theP)

void	Mirror (GAx2d theA)

GPnt2d	Mirrored (GAx2d theA)

void	Rotate (GPnt2d theP, double theAng)

GPnt2d	Rotated (GPnt2d theP, double theAng)

void	Scale (GPnt2d theP, double theS)

GPnt2d	Scaled (GPnt2d theP, double theS)

void	Transform (GTrsf2d theT)

GPnt2d	Transformed (GTrsf2d theT)

void	Translate (GVec2d theV)

GPnt2d	Translated (GVec2d theV)

void	Translate (GPnt2d theP1, GPnt2d theP2)

GPnt2d	Translated (GPnt2d theP1, GPnt2d theP2)

详细描述

Defines a non-persistent 2D cartesian point.

构造及析构函数说明

◆ GPnt2d() [1/3]

GPnt2d.GPnt2d ( )

Creates a point with zero coordinates.

◆ GPnt2d() [2/3]

GPnt2d.GPnt2d ( GXY theCoord )

Creates a point with a doublet of coordinates.

◆ GPnt2d() [3/3]

GPnt2d.GPnt2d	(	double	theXp,
		double	theYp )

Creates a point with its 2 cartesian's coordinates : theXp, theYp.

成员函数说明

◆ ChangeCoord()

GXY GPnt2d.ChangeCoord ( )

Returns the coordinates of this point. Note: This syntax allows direct modification of the returned value.

◆ Coord() [1/3]

GXY GPnt2d.Coord ( )

For this point, returns its two coordinates as a number pair.

◆ Coord() [2/3]

void GPnt2d.Coord	(	double[]	theXp,
		double[]	theYp )

For this point returns its two coordinates as a number pair.

◆ Coord() [3/3]

double GPnt2d.Coord ( int theIndex )

Returns the coordinate of range theIndex : theIndex = 1 => X is returned theIndex = 2 => Y is returned Raises OutOfRange if theIndex != {1, 2}.

◆ Distance()

double GPnt2d.Distance ( GPnt2d theOther )

Computes the distance between two points.

◆ IsEqual()

boolean GPnt2d.IsEqual	(	GPnt2d	theOther,
		double	theLinearTolerance )

Comparison Returns True if the distance between the two points is lower or equal to theLinearTolerance.

◆ Mirror()

void GPnt2d.Mirror ( GPnt2d theP )

Performs the symmetrical transformation of a point with respect to the point theP which is the center of the symmetry.

◆ Mirrored()

GPnt2d GPnt2d.Mirrored ( GPnt2d theP )

Performs the symmetrical transformation of a point with respect to an axis placement which is the axis

◆ Rotate()

void GPnt2d.Rotate	(	GPnt2d	theP,
		double	theAng )

Rotates a point. theA1 is the axis of the rotation. Ang is the angular value of the rotation in radians.

◆ Scale()

void GPnt2d.Scale	(	GPnt2d	theP,
		double	theS )

Scales a point. theS is the scaling value.

◆ SetCoord() [1/2]

void GPnt2d.SetCoord	(	double	theXp,
		double	theYp )

For this point, assigns the values theXp and theYp to its two coordinates

◆ SetCoord() [2/2]

void GPnt2d.SetCoord	(	int	theIndex,
		double	theXi )

Assigns the value Xi to the coordinate that corresponds to theIndex: theIndex = 1 => X is modified theIndex = 2 => Y is modified Raises OutOfRange if theIndex != {1, 2}.

◆ SetX()

void GPnt2d.SetX ( double theX )

Assigns the given value to the X coordinate of this point.

◆ SetXY()

void GPnt2d.SetXY ( GXY theCoord )

Assigns the two coordinates of Coord to this point.

◆ SetY()

void GPnt2d.SetY ( double theY )

Assigns the given value to the Y coordinate of this point.

◆ SquareDistance()

double GPnt2d.SquareDistance ( GPnt2d theOther )

Computes the square distance between two points.

◆ Transform()

void GPnt2d.Transform ( GTrsf2d theT )

Transforms a point with the transformation theT.

◆ Translate() [1/2]

void GPnt2d.Translate	(	GPnt2d	theP1,
		GPnt2d	theP2 )

Translates a point from the point theP1 to the point theP2.

◆ Translate() [2/2]

void GPnt2d.Translate ( GVec2d theV )

Translates a point in the direction of the vector theV. The magnitude of the translation is the vector's magnitude.

◆ X()

double GPnt2d.X ( )

For this point, returns its X coordinate.

◆ XY()

GXY GPnt2d.XY ( )