luciad::CircularArcByBulge Class Reference

A circular arc defined by a start point, end point and a bulge factor. More...

#include <luciad/geometries/CircularArcByBulge.h>

Inheritance diagram for luciad::CircularArcByBulge:

Public Member Functions
	~CircularArcByBulge () override
luciad::Coordinate	computePoint (double parameter) const override
	Computes a point of the curve, defined by the given parameter. More...
Bounds	getBounds () const override
	Returns the bounds for the geometry object. More...
double	getBulge () const
	Returns the bulge factor of this arc. More...
luciad::Coordinate	getEndPoint () const
	Returns the end point of this arc. More...
double	getLength2D () const override
	Returns the length of the curve. More...
std::shared_ptr< luciad::CoordinateReference >	getReference () const override
	Returns the coordinate reference of the geometry. More...
luciad::Coordinate	getStartPoint () const
	Returns the start point of this arc. More...
virtual Coordinate	computePoint (double parameter) const =0
	Computes a point of the curve, defined by the given parameter. More...
virtual double	getLength2D () const =0
	Returns the length of the curve. More...
Public Member Functions inherited from luciad::Geometry
virtual	~Geometry ()=default
virtual Bounds	getBounds () const =0
	Returns the bounds for the geometry object. More...
virtual std::shared_ptr< CoordinateReference >	getReference () const =0
	Returns the coordinate reference of the geometry. More...

Protected Member Functions
size_t	getHash () const override
	Returns the hash value for this geometry. More...
virtual size_t	getHash () const =0
	Returns the hash value for this geometry. More...

Detailed Description

A circular arc defined by a start point, end point and a bulge factor.

See also

GeometryFactory::createCircularArcByBulge

Constructor & Destructor Documentation

~CircularArcByBulge()

luciad::CircularArcByBulge::~CircularArcByBulge ( )

override

Member Function Documentation

computePoint()

luciad::Coordinate luciad::CircularArcByBulge::computePoint ( double  parameter ) const

overridevirtual

Computes a point of the curve, defined by the given parameter.

1. At parameter 0, the point is the start point of the curve.
2. At parameter 1, the point is the end point of the curve.

Parameters

parameter

the parameter value, within [0,1], to compute the point location for.

Returns

the computed point location.

Exceptions

luciad::InvalidArgumentException

if parameter is not within [0,1], or if the point could not be computed. For example, when the curve is defined by invalid points.

Implements luciad::Curve.

getBounds()

Bounds luciad::CircularArcByBulge::getBounds ( ) const

overridevirtual

Returns the bounds for the geometry object.

Returns

the bounds for the geometry object.

Exceptions

luciad::InvalidArgumentException

if the bounds could not be computed. For example, when the geometry is defined by invalid points.

Implements luciad::Geometry.

getBulge()

double luciad::CircularArcByBulge::getBulge

(

)

const

Returns the bulge factor of this arc.

The bulge factor is the ratio of (1) the distance between the arc midpoint and the center of the arc's chord, and (2) half the length of the arc's chord. The sign of the bulge indicates whether the midpoint is on the left side (positive) or right side (negative) of the vector from start to end point. So a bulge factor with an absolute value of 1 means a half-circle, smaller than 1 means a less bulging arc and larger than 1 means an arc that bulges out in the start and end point.

Returns

the bulge factor of this arc.

getEndPoint()

luciad::Coordinate luciad::CircularArcByBulge::getEndPoint

(

)

const

Returns the end point of this arc.

Returns

the end point of this arc.

getHash()

size_t luciad::CircularArcByBulge::getHash ( ) const

overrideprotectedvirtual

Returns the hash value for this geometry.

Returns

the hash value for this geometry.

Implements luciad::Geometry.

getLength2D()

double luciad::CircularArcByBulge::getLength2D ( ) const

overridevirtual

Returns the length of the curve.

Returns

the length of the curve.

Exceptions

luciad::InvalidArgumentException

if the length could not be computed. For example, when the curve is defined by invalid points.

Implements luciad::Curve.

getReference()

std::shared_ptr< luciad::CoordinateReference > luciad::CircularArcByBulge::getReference ( ) const

overridevirtual

Returns the coordinate reference of the geometry.

Returns

the coordinate reference of the geometry.

Implements luciad::Geometry.

getStartPoint()

luciad::Coordinate luciad::CircularArcByBulge::getStartPoint

(

)

const

Returns the start point of this arc.

Returns

the start point of this arc.