Inheritance diagram for SHAPE_ARC:

Public Member Functions
	SHAPE_ARC (const VECTOR2I &aArcCenter, const VECTOR2I &aArcStartPoint, double aCenterAngle, int aWidth=0)
	Construct and arc using center, start, angle.

	SHAPE_ARC (const VECTOR2I &aArcStart, const VECTOR2I &aArcMid, const VECTOR2I &aArcEnd, int aWidth)

	SHAPE_ARC (const SEG &aSegmentA, const SEG &aSegmentB, int aRadius, int aWidth=0)
	Build a SHAPE_ARC which is tangent to two segments and a given radius.

	SHAPE_ARC (const SHAPE_ARC &aOther)

SHAPE *	Clone () const override
	Return a dynamically allocated copy of the shape.

SHAPE_ARC &	ConstructFromStartEndAngle (const VECTOR2I &aStart, const VECTOR2I &aEnd, double aAngle, double aWidth=0)
	Construct this arc from the given start, end and angle.

SHAPE_ARC &	ConstructFromStartEndCenter (const VECTOR2I &aStart, const VECTOR2I &aEnd, const VECTOR2I &aCenter, bool aClockwise=false, double aWidth=0)
	Constructs this arc from the given start, end and center.

const VECTOR2I &	GetP0 () const

const VECTOR2I &	GetP1 () const

const VECTOR2I &	GetArcMid () const

VECTOR2I	GetCenter () const

const BOX2I	BBox (int aClearance=0) const override
	Compute a bounding box of the shape, with a margin of aClearance a collision.

bool	Collide (const SEG &aSeg, int aClearance=0, int aActual=nullptr, VECTOR2I aLocation=nullptr) const override
	Check if the boundary of shape (this) lies closer to the segment aSeg than aClearance, indicating a collision.

bool	Collide (const VECTOR2I &aP, int aClearance=0, int aActual=nullptr, VECTOR2I aLocation=nullptr) const override
	Check if the boundary of shape (this) lies closer to the point aP than aClearance, indicating a collision.

bool	Collide (const SHAPE aShape, int aClearance=0, int aActual=nullptr, VECTOR2I *aLocation=nullptr) const override

int	IntersectLine (const SEG &aSeg, std::vector< VECTOR2I > *aIpsBuffer) const
	Find intersection points between this arc and aSeg, treating aSeg as an infinite line.

int	Intersect (const SHAPE_ARC &aArc, std::vector< VECTOR2I > *aIpsBuffer) const
	Find intersection points between this arc and aArc.

bool	IsClockwise () const

void	SetWidth (int aWidth)

int	GetWidth () const

bool	IsSolid () const override

void	Move (const VECTOR2I &aVector) override

void	Rotate (double aAngle, const VECTOR2I &aCenter) override
	Rotate the arc by a given angle about a point.

void	Mirror (bool aX=true, bool aY=false, const VECTOR2I &aVector={ 0, 0 })

void	Mirror (const SEG &axis)

void	Reverse ()

SHAPE_ARC	Reversed () const

double	GetRadius () const

SEG	GetChord () const

double	GetCentralAngle () const

double	GetStartAngle () const

double	GetEndAngle () const

double	GetLength () const

const SHAPE_LINE_CHAIN	ConvertToPolyline (double aAccuracy=DefaultAccuracyForPCB(), double *aEffectiveAccuracy=nullptr) const
	Construct a SHAPE_LINE_CHAIN of segments from a given arc.

bool	operator== (SHAPE_ARC const &aArc) const

Public Member Functions inherited from SHAPE
	SHAPE (SHAPE_TYPE aType)
	Create an empty shape of type aType.

bool	IsNull () const
	Return true if the shape is a null shape.

virtual bool	Collide (const SHAPE aShape, int aClearance, VECTOR2I aMTV) const
	Check if the boundary of shape (this) lies closer to the shape aShape than aClearance, indicating a collision.

virtual VECTOR2I	Centre () const
	Compute a center-of-mass of the shape.

virtual bool	Parse (std::stringstream &aStream)

virtual const std::string	Format () const

Public Member Functions inherited from SHAPE_BASE
	SHAPE_BASE (SHAPE_TYPE aType)
	Create an empty shape of type aType.

SHAPE_TYPE	Type () const
	Return the type of the shape.

virtual bool	HasIndexableSubshapes () const

virtual size_t	GetIndexableSubshapeCount () const

virtual void	GetIndexableSubshapes (std::vector< SHAPE * > &aSubshapes)

Static Public Member Functions
static double	DefaultAccuracyForPCB ()

Additional Inherited Members
Static Public Attributes inherited from SHAPE
static const int	MIN_PRECISION_IU = 4
	This is the minimum precision for all the points in a shape.

Protected Types inherited from SHAPE
typedef VECTOR2I::extended_type	ecoord

Protected Attributes inherited from SHAPE_BASE
SHAPE_TYPE	m_type
	< type of our shape

Constructor & Destructor Documentation

◆ SHAPE_ARC() [1/3]

SHAPE_ARC::SHAPE_ARC	(	const VECTOR2I &	aArcCenter,
		const VECTOR2I &	aArcStartPoint,
		double	aCenterAngle,
		int	aWidth = `0`
	)

Construct and arc using center, start, angle.

Center and angle are used to calculate the mid and end points of the arc, and are not stored.

Parameters

aArcCenter	is the arc center.
aArcStartPoint	is the arc start point.
aCenterAngle	is the arc angle in degrees.
aWidth	is the arc line thickness.

◆ SHAPE_ARC() [2/3]

SHAPE_ARC::SHAPE_ARC	(	const VECTOR2I &	aArcStart,
		const VECTOR2I &	aArcMid,
		const VECTOR2I &	aArcEnd,
		int	aWidth
	)

Parameters

aArcStart	is the arc start point.
aArcEnd	is the arc end point.
aArcMid	is the arc mid point.
aWidth	is the arc line thickness.

◆ SHAPE_ARC() [3/3]

SHAPE_ARC::SHAPE_ARC	(	const SEG &	aSegmentA,
		const SEG &	aSegmentB,
		int	aRadius,
		int	aWidth = `0`
	)

Build a SHAPE_ARC which is tangent to two segments and a given radius.

Parameters

aSegmentA	is the first segment
aSegmentB	is the second segment
aRadius	is the arc radius
aWidth	is the arc line thickness

Member Function Documentation

◆ BBox()

const BOX2I SHAPE_ARC::BBox ( int aClearance = 0 ) const

overridevirtual

Compute a bounding box of the shape, with a margin of aClearance a collision.

Parameters

aClearance how much the bounding box is expanded wrs to the minimum enclosing rectangle for the shape.

Returns: the bounding box.

Implements SHAPE.

◆ Clone()

SHAPE * SHAPE_ARC::Clone ( ) const

inlineoverridevirtual

Return a dynamically allocated copy of the shape.

Return values

copy	of the shape

Reimplemented from SHAPE.

◆ Collide() [1/3]

bool SHAPE_ARC::Collide	(	const SEG &	aSeg,
		int	aClearance = `0`,
		int *	aActual = `nullptr`,
		VECTOR2I *	aLocation = `nullptr`
	)		const

overridevirtual

Check if the boundary of shape (this) lies closer to the segment aSeg than aClearance, indicating a collision.

Parameters

aActual	[out] an optional pointer to an int to be updated with the actual distance int the event of a collision.
aLocation	[out] an option pointer to a point to store a nearby location in the event of a collision.

Returns: true, if there is a collision.

Implements SHAPE.

◆ Collide() [2/3]

bool SHAPE_ARC::Collide	(	const SHAPE *	aShape,
		int	aClearance = `0`,
		int *	aActual = `nullptr`,
		VECTOR2I *	aLocation = `nullptr`
	)		const

inlineoverridevirtual

Reimplemented from SHAPE.

◆ Collide() [3/3]

bool SHAPE_ARC::Collide	(	const VECTOR2I &	aP,
		int	aClearance = `0`,
		int *	aActual = `nullptr`,
		VECTOR2I *	aLocation = `nullptr`
	)		const

overridevirtual

Check if the boundary of shape (this) lies closer to the point aP than aClearance, indicating a collision.

Parameters

aActual	[out] an optional pointer to an int to store the actual distance in the event of a collision.
aLocation	[out] an option pointer to a point to store a nearby location in the event of a collision.

Returns: true, if there is a collision.

Reimplemented from SHAPE.

◆ ConstructFromStartEndAngle()

SHAPE_ARC & SHAPE_ARC::ConstructFromStartEndAngle	(	const VECTOR2I &	aStart,
		const VECTOR2I &	aEnd,
		double	aAngle,
		double	aWidth = `0`
	)

Construct this arc from the given start, end and angle.

Parameters

aStart	is the arc starting point
aEnd	is the arc endpoint
aAngle	is the arc included angle
aWidth	is the arc line thickness

Returns: this arc.

◆ ConstructFromStartEndCenter()

SHAPE_ARC & SHAPE_ARC::ConstructFromStartEndCenter	(	const VECTOR2I &	aStart,
		const VECTOR2I &	aEnd,
		const VECTOR2I &	aCenter,
		bool	aClockwise = `false`,
		double	aWidth = `0`
	)

Constructs this arc from the given start, end and center.

Parameters

aStart	is the arc starting point
aEnd	is the arc endpoint
aCenter	is the arc center
aClockwise	determines which of the two solutions to construct
aWidth	is the arc line thickness

Returns: *this

◆ ConvertToPolyline()

const SHAPE_LINE_CHAIN SHAPE_ARC::ConvertToPolyline	(	double	aAccuracy = `DefaultAccuracyForPCB()`,
		double *	aEffectiveAccuracy = `nullptr`
	)		const

Construct a SHAPE_LINE_CHAIN of segments from a given arc.

Note: The default is #ARC_HIGH_DEF in Pcbnew units. This is to allow common geometry collision functions. Other programs should call this using explicit accuracy values.

Todo:: Unify KiCad internal units.

Parameters

aAccuracy	maximum divergence from true arc given in internal units.
aEffectiveAccuracy	is the actual divergence from true arc given. the approximation error is between -aEffectiveAccuracy/2 and +aEffectiveAccuracy/2 in internal units

Returns: a SHAPE_LINE_CHAIN.

◆ DefaultAccuracyForPCB()

static double SHAPE_ARC::DefaultAccuracyForPCB ( )

inlinestatic

Note: The default is #ARC_HIGH_DEF in Pcbnew units. This is to allow common geometry collision functions. Other programs should call this using explicit accuracy values.

Todo:: Unify KiCad internal units.

Returns: a default accuracy value for ConvertToPolyline() to build the polyline.

◆ GetCentralAngle()

double SHAPE_ARC::GetCentralAngle ( ) const

Returns: the central angle of the arc shape in degrees, normalized between 0.0, 360.0 deg.

◆ GetEndAngle()

double SHAPE_ARC::GetEndAngle ( ) const

Returns: the end angle of the arc shape in degrees, normalized between 0.0, 360.0 deg.

◆ GetLength()

double SHAPE_ARC::GetLength ( ) const

Returns: the length of the arc shape.

◆ GetStartAngle()

double SHAPE_ARC::GetStartAngle ( ) const

Returns: the start angle of the arc shape in degrees, normalized between 0.0, 360.0 deg.

◆ Intersect()

int SHAPE_ARC::Intersect	(	const SHAPE_ARC &	aArc,
		std::vector< VECTOR2I > *	aIpsBuffer
	)		const

Find intersection points between this arc and aArc.

Ignores arc width.

Parameters

aSeg
aIpsBuffer	Buffer to store the resulting intersection points (if any)

Returns: Number of intersection points found

◆ IntersectLine()

int SHAPE_ARC::IntersectLine	(	const SEG &	aSeg,
		std::vector< VECTOR2I > *	aIpsBuffer
	)		const

Find intersection points between this arc and aSeg, treating aSeg as an infinite line.

Ignores arc width.

Parameters

aSeg	Line to intersect against (treated as an infinite line)
aIpsBuffer	Buffer to store the resulting intersection points (if any)

Returns: Number of intersection points found

◆ IsSolid()

bool SHAPE_ARC::IsSolid ( ) const

inlineoverridevirtual

Implements SHAPE.

◆ Move()

void SHAPE_ARC::Move ( const VECTOR2I & aVector )

overridevirtual

Implements SHAPE.

◆ Rotate()

void SHAPE_ARC::Rotate	(	double	aAngle,
		const VECTOR2I &	aCenter
	)

overridevirtual

Rotate the arc by a given angle about a point.

Parameters

aCenter	is the rotation center.
aAngle	rotation angle in radians.

Implements SHAPE.

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

3rd_party/router/kimath/include/geometry/shape_arc.h
3rd_party/router/kimath/src/geometry/shape_arc.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ SHAPE_ARC() [1/3]

◆ SHAPE_ARC() [2/3]

◆ SHAPE_ARC() [3/3]

Member Function Documentation

◆ BBox()

◆ Clone()

◆ Collide() [1/3]

◆ Collide() [2/3]

◆ Collide() [3/3]

◆ ConstructFromStartEndAngle()

◆ ConstructFromStartEndCenter()

◆ ConvertToPolyline()

◆ DefaultAccuracyForPCB()

◆ GetCentralAngle()

◆ GetEndAngle()

◆ GetLength()

◆ GetStartAngle()

◆ Intersect()

◆ IntersectLine()

◆ IsSolid()

◆ Move()

◆ Rotate()