luciad::ObservableCircleByCenterPointUtil Class Reference

This class provides utility methods for Observable instance for CircleByCenterPoint. More...

#include <luciad/geometries/observable/ObservableCircleByCenterPointUtil.h>

Public Member Functions
	ObservableCircleByCenterPointUtil ()=delete

Static Public Member Functions
static std::shared_ptr< Observable< std::shared_ptr< Point > > >	deriveCenter (const std::shared_ptr< Observable< std::shared_ptr< CircleByCenterPoint > > > &observableCircle)
	Derives an Observable Point from the given observable circle that represents the center point. More...
static std::shared_ptr< Observable< std::shared_ptr< Point > > >	derivePointAtAngle (const std::shared_ptr< Observable< std::shared_ptr< CircleByCenterPoint > > > &observableCircle, Angle angle)
	Derives an Observable Point from the given observable circle that represents the point at the given angle. More...

Detailed Description

This class provides utility methods for Observable instance for CircleByCenterPoint.

Since

2020.1

Constructor & Destructor Documentation

ObservableCircleByCenterPointUtil()

luciad::ObservableCircleByCenterPointUtil::ObservableCircleByCenterPointUtil ( )

delete

Member Function Documentation

deriveCenter()

static std::shared_ptr< Observable< std::shared_ptr< Point > > > luciad::ObservableCircleByCenterPointUtil::deriveCenter ( const std::shared_ptr< Observable< std::shared_ptr< CircleByCenterPoint > > > &  observableCircle )

static

Derives an Observable Point from the given observable circle that represents the center point.

This observable point will be updated when the given observable circle changes.

Notes:

• When the observable circle contains a nullptr value, the observable center point instance will contain a nullptr value too.
• Observable::setValue will throw an exception for derived instances.

Parameters

observableCircle

an observable circle from which to derive the center

Returns

a derived Observable

derivePointAtAngle()

static std::shared_ptr< Observable< std::shared_ptr< Point > > > luciad::ObservableCircleByCenterPointUtil::derivePointAtAngle ( const std::shared_ptr< Observable< std::shared_ptr< CircleByCenterPoint > > > &  observableCircle, Angle  angle  )

static

Derives an Observable Point from the given observable circle that represents the point at the given angle.

This observable point will be updated when the given observable circle changes.

Notes:

• When the observable circle contains a nullptr value, the observable point instance will contain a nullptr value too.
• Observable::setValue will throw an exception for derived instances.

Parameters

observableCircle	an observable circle from which to derive the point
angle	the angle at which to derive the point. For example: an angle of 0 will result in the point on the right of the major axis. An angle of 90 will result in the point a the top of the minor axis.

Returns

a derived Observable