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rdLine Class Reference

A class for representing a straight line. More...

#include <rdLine.h>

Inheritance diagram for rdLine:

List of all members.

Public Member Functions
	rdLine (double aP0X, double aP0Y, double aP0Z, double aP2X, double aP2Y, double aP2Z)
	Construct a line from two points (P and P2).
	rdLine (double aPX, double aPY, double aPZ, const double aDirection[3])
	Construct a line from a point and a direction.
virtual	~rdLine ()
	Destructor.
void	setPoint (double aPX, double aPY, double aPZ)
	Set the point that the line passes through.
void	getPoint (double rPoint[3]) const
	Get the point that the line passes through.
void	setDirection (const double aDirection[3])
	Set the direction of the line.
void	getDirection (double rDirection[3]) const
	Get the direction of the line.
void	evaluate (double aDistance, double rLineValue[3]) const
	Evaluate the line at a specified distance away from the specified point of the line:.
Private Member Functions
void	setNull ()
	Set NULL values for all member variables.
Private Attributes
double	_point [3]
	Point through which the line passes.
double	_direction [3]
	Unit vector specifying the direction of the line.

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Detailed Description

A class for representing a straight line.

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Constructor & Destructor Documentation

rdLine::rdLine (  double  aP0X, double  aP0Y, double  aP0Z, double  aP2X, double  aP2Y, double  aP2Z )

Construct a line from two points (P and P2). Point P is kept as the point through which the line passes, and P2 is used to compute the direction of the line. The direction of the line points from P to P2. Parameters: aPX  X component of a point through which the line passes. aPY  Y component of a point through which the line passes. aPZ  Z component of a point through which the line passes. aP2X  X component of a second point through which the line passes. aP2Y  Y component of a second point through which the line passes. aP2Z  Z component of a second point through which the line passes. aDirection  Direction of the line specified as a unit vector.

rdLine::rdLine (  double  aPX, double  aPY, double  aPZ, const double  aDirection[3] )

Construct a line from a point and a direction. Parameters: aPX  X component of a point through which the line passes. aPY  Y component of a point through which the line passes. aPZ  Z component of a point through which the line passes. aDirection  Direction of the line specified as a unit vector.

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Member Function Documentation

void rdLine::evaluate (  double  aDistance, double  rLineValue[3] )  const

Evaluate the line at a specified distance away from the specified point of the line:. value = point + distance * direction Parameters: aDistance  Distance away from the specified point of this line (see setPoint()). aDistance may be positive or negative. aValue  Point value of the line at distance aDistance.

void rdLine::getDirection (  double  rDirection[3]  )  const

Get the direction of the line. Parameters: aDirection  Direction of the line.

void rdLine::getPoint (  double  rPoint[3]  )  const

Get the point that the line passes through. Parameters: rPoint  Point that the line passes through.

void rdLine::setDirection (  const double  aDirection[3]  )

Set the direction of the line. Parameters: aDirection  Direction of the line.

void rdLine::setPoint (  double  aPX, double  aPY, double  aPZ )

Set the point that the line passes through. Parameters: aPX  X component of a point through which the line passes. aPY  Y component of a point through which the line passes. aPZ  Z component of a point through which the line passes.

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

• rdLine.h
• rdLine.cpp

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