TLink Class Reference

Inheritance diagram for TLink:

List of all members.

Public Member Functions
	TLink (TLink &ref)
bool	operator== (TLink &ref)
void	SetNode (int n, TNode *pNode)
TNode *	GetNode (int n)
double	GetLinearCoordinates (const DPoint2 &p, double &a, double &b, DPoint2 &closest, int &linkpoint, float &fractional, bool bAllowEnds=true)
double	DistanceToPoint (const DPoint2 &point, bool bAllowEnds=true)
bool	IsLoop ()
virtual void	SetFlag (int flag, bool value)
int	GetFlag (int flag)
float	Length ()
float	EstimateWidth (bool bIncludeSidewalk=true)
Public Attributes
float	m_fWidth
unsigned short	m_iLanes
SurfaceType	m_Surface
short	m_iHwy
TLink *	m_pNext
short	m_iFlags
int	m_id
float	m_fSidewalkWidth
float	m_fCurbHeight
float	m_fMarginWidth
float	m_fLaneWidth
float	m_fParkingWidth
Protected Attributes
TNode *	m_pNode [2]
float	m_fHeight [2]

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Detailed Description

A Transportation Link a series of points, connecting one node to another.

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Member Function Documentation

double TLink::DistanceToPoint	(	const DPoint2 &	point,
		bool	bAllowEnds = true
	)

Find closest lateral distance from a given point to the link.

double TLink::GetLinearCoordinates	(	const DPoint2 &	p,
		double &	result_a,
		double &	result_b,
		DPoint2 &	closest,
		int &	linkpoint,
		float &	fractional,
		bool	bAllowEnds = true
	)

Produces the "linear coordinates" a and b, where a is the distance along the link, and b is the signed lateral distance orthogonal to the link at that point.

Parameters:

p	The input point.
result_a	The resulting distance along the link.
result_b	The signed lateral (or absolute) distance to the link.
closest	The closest point on the link.
linkpoint	Index into the links points just before the closest point.
fractional	Fractional distance between this link point and the next.
bAllowEnds	If true, then for cases where the the closest point is either end of the link, the distance to that point is returned. Otherwise, only laterial distances are returned.