GLViewer_Segment Class Reference

#include <GLViewer_Geom.h>

Public Member Functions
	GLViewer_Segment (const GLViewer_Pnt &thePnt1, const GLViewer_Pnt &thePnt2)
	GLViewer_Segment (const GLViewer_Pnt &thePnt, const GLfloat theA, const GLfloat theB, const GLfloat theC)
	Ordinary segment construction.
	~GLViewer_Segment ()
bool	HasIntersection (const GLViewer_Segment &theOther) const
Private Attributes
GLViewer_Pnt	myPnt1
GLViewer_Pnt	myPnt2
GLfloat	myA
GLfloat	myB
GLfloat	myC

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Detailed Description

Class GLViewer_Segment Segment for 2d detection

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Constructor & Destructor Documentation

GLViewer_Segment::GLViewer_Segment	(	const GLViewer_Pnt &	thePnt1,
		const GLViewer_Pnt &	thePnt2
	)

constructs a real segment bounded by two points

References myA, myB, myC, myPnt1, myPnt2, GLViewer_Pnt.x(), and GLViewer_Pnt.y().

GLViewer_Segment::GLViewer_Segment	(	const GLViewer_Pnt &	thePnt,
		const GLfloat	theA,
		const GLfloat	theB,
		const GLfloat	theC
	)

Construction of a ray with given equation Ax + By + C = 0

constructs a ray starting at <thePnt> and directed along positive X axis direction (or Y axis if vertical )

References FAR_POINT, myA, myB, myC, myPnt1, myPnt2, TOLERANCE, and GLViewer_Pnt.x().

GLViewer_Segment::~GLViewer_Segment

(

)

destructor, does nothing

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Member Function Documentation

bool GLViewer_Segment::HasIntersection

(

const GLViewer_Segment &

theOther

)

const

detects intersection with segment <theOther>

References myA, myB, myC, myPnt1, myPnt2, TOLERANCE, GLViewer_Pnt.x(), and GLViewer_Pnt.y().

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Field Documentation

GLViewer_Pnt GLViewer_Segment.myPnt1 [private]

GLViewer_Pnt GLViewer_Segment.myPnt2 [private]

GLfloat GLViewer_Segment.myA [private]

GLfloat GLViewer_Segment.myB [private]

GLfloat GLViewer_Segment.myC [private]