CartoType::TLineFP Class Reference

#include <cartotype_arithmetic.h>

Public Member Functions
	TLineFP (const TPointFP &aStart, const TPointFP &aEnd)
double	Length () const
const TPointFP &	Start () const
const TPointFP &	End () const
bool	DistanceExceeds (double aX1, double aY1, double aX2, double aY2, int32_t aPoints, double aMaxDistance) const
void	GetTangent (double aDistance, TPointFP &aPoint) const
TLineFP	Reverse () const

Detailed Description

A straight line or line segment defined using floating-point numbers.

Constructor & Destructor Documentation

TLineFP()

CartoType::TLineFP::TLineFP ( const TPointFP &  aStart, const TPointFP &  aEnd  )

inline

Creates a line from aStart to aEnd.

Member Function Documentation

DistanceExceeds()

bool CartoType::TLineFP::DistanceExceeds	(	double	aX1,
		double	aY1,
		double	aX2,
		double	aY2,
		int32_t	aPoints,
		double	aMaxDistance
	)		const

Returns true if the distance from the line segment of either of the one or two supplied points exceeds aMaxDistance. This function is used when flattening curved paths, for finding whether the path is flat enough, which is when all the control points are near enough to the line segments.

End()

const TPointFP & CartoType::TLineFP::End ( ) const

inline

Returns the end of the line segment.

GetTangent()

void CartoType::TLineFP::GetTangent	(	double	aDistance,
		TPointFP &	aPoint
	)		const

Returns a point at a certain distance along a line in aPoint. aDistance can be negative, or beyond the end of the line. In these cases the line is extended in the same direction.

Length()

double CartoType::TLineFP::Length ( ) const

inline

Returns the length of the line segment.

Reverse()

TLineFP CartoType::TLineFP::Reverse ( ) const

inline

Returns a reversed copy of this line.

Start()

const TPointFP & CartoType::TLineFP::Start ( ) const

inline

Returns the start of the line segment.

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

• cartotype_arithmetic.h