trax::PiecewiseTwist Struct Reference

A twist with values at control points and either none or linear interpolation for the points in between. More...

#include <C:/Trend/Development/Trax3/Code/trax/RoadwayTwist.h>

Inheritance diagram for trax::PiecewiseTwist:

Public Types
using	SegmentValueType = std::pair<Length, Angle>
using	Data = std::vector<SegmentValueType>
Public Types inherited from trax::RoadwayTwist
enum class	TwistType : char {   Unknown = -2 , None = -1 , Zero = 0 , Constant ,   Linear , Piecewise , PiecewiseLinear , PiecewiseCircular ,   PiecewiseDirectional , Directional , Positional , Combined ,   Parallel }

Public Member Functions
virtual void	Add (Length s, const Angle &twist)=0
	Add a control point to the Twist.
virtual void	Add (const std::pair< Length, Angle > &pair)=0
	Add a control point to the Twist.
virtual int	CntTwistValues () const =0
virtual std::pair< Length, Angle >	Twist (int idx) const =0
virtual void	Create (const Data &data)=0
virtual const Data &	GetData () const noexcept=0
virtual Angle	Twist (Length s) const=0
Public Member Functions inherited from trax::RoadwayTwist
virtual const char *	TypeName () const noexcept=0
	Name for the object type that implements this interface.
virtual TwistType	GetTwistType () const noexcept=0
virtual std::unique_ptr< RoadwayTwist >	Clone () const =0
	Make a clone from this object.
virtual bool	IsValid () const noexcept=0
virtual AnglePerLength	D1 (Length s) const =0
virtual bool	ZeroFlip (bool bActive) noexcept=0
virtual void	Flip () noexcept=0
	Flips the effect of the twist along the track. After calling this function, the Twist() and D1() methods will give pi - Twist(Track::GetLength() - s) and -D1(Track::GetLength() - s). Calling Flip() a second time will nullify the effect.
virtual void	Mirror () noexcept=0
	Multiplies all twist angle by -1.
virtual bool	Offset (Angle offset) noexcept=0
	Adds a global offset angle to the Twist.
virtual bool	IsDynamic () const noexcept=0
	A twist is dynamic if it relates to geometry global to the track.
virtual bool	IsDirectionalConstant () const noexcept=0
	Find wether the twist is directional only offsetted by a constant.
virtual bool	IsConstant () const noexcept=0
virtual void	Freeze (bool bFreeze=true) noexcept=0
	Freezes the twist, so that dynamic twists like DirectionalTwist don't update anymore.
virtual bool	IsFrozen () const noexcept=0
virtual bool	IsNull () const noexcept=0
virtual bool	Equals (const RoadwayTwist &toTwist, Angle epsilon_angle=epsilon__angle) const noexcept=0
	Comparison.
virtual void	OnAttach (const TrackBuilder &track) noexcept=0
	Called on attachment to a track.
virtual void	OnDetach () noexcept=0
	Called on detachment from a track.
virtual Angle	DoTwist (Length) const =0
virtual AnglePerLength	DoD1 (Length) const =0
	RoadwayTwist (RoadwayTwist &&)=delete
RoadwayTwist &	operator= (const RoadwayTwist &)=delete
RoadwayTwist &	operator= (RoadwayTwist &&)=delete

Static Public Member Functions
static dclspc std::unique_ptr< PiecewiseTwist >	Make (TwistType type=TwistType::Piecewise) noexcept
	Makes a PiecewiseTwist object.
static dclspc std::unique_ptr< PiecewiseTwist >	Make (TwistType type, const RoadwayTwist &fromTwist) noexcept
	Makes a PiecewiseTwist object from another twist.
Static Public Member Functions inherited from trax::RoadwayTwist
static dclspc std::unique_ptr< RoadwayTwist >	Make (TwistType type) noexcept
	Makes a RoadwayTwist object.
static dclspc std::unique_ptr< RoadwayTwist >	Make (TwistType type, const RoadwayTwist &fromTwist) noexcept
	Makes a RoadwayTwist object from another twist.

Additional Inherited Members
Protected Member Functions inherited from trax::RoadwayTwist
	RoadwayTwist (const RoadwayTwist &)=default

Detailed Description

A twist with values at control points and either none or linear interpolation for the points in between.

Member Function Documentation

CntTwistValues()

virtual int trax::PiecewiseTwist::CntTwistValues ( ) const

pure virtual

Returns

the number of added control points

Twist() [1/2]

virtual std::pair< Length, Angle > trax::PiecewiseTwist::Twist ( int idx ) const

pure virtual

Parameters

idx	Zero based index of control point.

Returns

A control point.

Twist() [2/2]

virtual Angle trax::RoadwayTwist::Twist ( Length s ) const

virtual

Parameters

s	track parameter to get the twist for [0,Track::GetLength()].

Returns

Twisting angle in radiants.

Implements trax::RoadwayTwist.

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The documentation for this struct was generated from the following file:

• C:/Trend/Development/Trax3/Code/trax/RoadwayTwist.h