Plain ellipse / elliptical-arc data. More...

#include <ellipse.h>

Public Member Functions
	ELLIPSE ()

	ELLIPSE (const VECTOR2< NumericType > &aCenter, NumericType aMajorRadius, NumericType aMinorRadius, EDA_ANGLE aRotation, EDA_ANGLE aStartAngle=ANGLE_0, EDA_ANGLE aEndAngle=FULL_CIRCLE)
	Constructs an ellipse or elliptical arc.

	ELLIPSE (const VECTOR2< NumericType > &aCenter, const VECTOR2< NumericType > &aMajor, double aRatio, EDA_ANGLE aStartAngle=ANGLE_0, EDA_ANGLE aEndAngle=FULL_CIRCLE)
	Constructs a DXF-style ellipse or elliptical arc, where the major axis is given by a point rather than a radius, and therefore defines not only the major radius but also the rotation of the ellipse.

void	Mirror (const VECTOR2< NumericType > &aRef, FLIP_DIRECTION aFlipDirection)
	Mirror the ellipse along a horizontal or vertical axis passing through aRef.

EDA_ANGLE	GetSubtendedAngle () const
	Get the subtended angle of the ellipse or elliptical arc at the center.

VECTOR2< NumericType >	GetPointAtAngle (EDA_ANGLE angle) const
	Get the point on the ellipse at a given angle.

VECTOR2< NumericType >	GetArcStartPoint () const
	Get the point on the ellipse at the start angle of the arc.

VECTOR2< NumericType >	GetArcEndPoint () const
	Get the point on the ellipse at the end angle of the arc.

EDA_ANGLE	GetAngleAtPoint (const VECTOR2< NumericType > &aPt) const
	Get the parametric angle of a point on the ellipse.

Public Attributes
VECTOR2< NumericType >	Center

NumericType	MajorRadius

NumericType	MinorRadius

EDA_ANGLE	Rotation

EDA_ANGLE	StartAngle

EDA_ANGLE	EndAngle

Detailed Description

template<typename NumericType>
class ELLIPSE< NumericType >

Plain ellipse / elliptical-arc data.

Used by SHAPE_ELLIPSE, by EDA_SHAPE's native ellipse storage, and by importers that need to round-trip ellipses.

Definition at line 31 of file ellipse.h.

Constructor & Destructor Documentation

◆ ELLIPSE() [1/3]

template<typename NumericType>

ELLIPSE< NumericType >::ELLIPSE ( )

inline

Definition at line 34 of file ellipse.h.

References MajorRadius, and MinorRadius.

◆ ELLIPSE() [2/3]

template<typename NumericType>

ELLIPSE< NumericType >::ELLIPSE	(	const VECTOR2< NumericType > &	aCenter,
		NumericType	aMajorRadius,
		NumericType	aMinorRadius,
		EDA_ANGLE	aRotation,
		EDA_ANGLE	aStartAngle = ANGLE_0,
		EDA_ANGLE	aEndAngle = FULL_CIRCLE )

Constructs an ellipse or elliptical arc.

The ellipse sweeps from aStartAngle to aEndAngle in a counter-clockwise direction.

Parameters

aCenter	is the center point of the ellipse.
aMajorRadius	is the radius of the "x-axis" dimension of the ellipse.
aMinorRadius	is the radius of the "y-axis" dimension of the ellipse.
aRotation	is the angle of the ellipse "x-axis" relative to world x-axis.
aStartAngle	is the starting angle of the elliptical arc.
aEndAngle	is the ending angle of the elliptical arc.

Definition at line 26 of file ellipse.cpp.

References Center, EndAngle, MajorRadius, MinorRadius, Rotation, and StartAngle.

◆ ELLIPSE() [3/3]

template<typename NumericType>

ELLIPSE< NumericType >::ELLIPSE	(	const VECTOR2< NumericType > &	aCenter,
		const VECTOR2< NumericType > &	aMajor,
		double	aRatio,
		EDA_ANGLE	aStartAngle = ANGLE_0,
		EDA_ANGLE	aEndAngle = FULL_CIRCLE )

Constructs a DXF-style ellipse or elliptical arc, where the major axis is given by a point rather than a radius, and therefore defines not only the major radius but also the rotation of the ellipse.

Parameters

aCenter	is the center point of the ellipse.
aMajor	is the endpoint of the major axis, relative to the center.
aRatio	is the ratio of the minor axis length to the major axis length.
aStartAngle	is the starting angle of the elliptical arc.
aEndAngle	is the ending angle of the elliptical arc.