Opcode::Segment Class Reference

#include <Opcode.h>

Inheritance diagram for Opcode::Segment:

Public Member Functions
inline_	Segment ()
	Constructor. More...
inline_	Segment (const Point &p0, const Point &p1)
	Constructor. More...
inline_	Segment (const Segment &seg)
	Copy constructor. More...
inline_	~Segment ()
	Destructor. More...
inline_ const Point &	GetOrigin () const
inline_ Point	ComputeDirection () const
inline_ void	ComputeDirection (Point &dir) const
inline_ float	ComputeLength () const
inline_ float	ComputeSquareLength () const
inline_ void	SetOriginDirection (const Point &origin, const Point &direction)
inline_ void	ComputePoint (Point &pt, float t) const
float	SquareDistance (const Point &point, float *t=null) const
inline_ float	Distance (const Point &point, float *t=null) const

Public Attributes
Point	mP0
	Start of segment. More...
Point	mP1
	End of segment. More...

Detailed Description

Definition at line 16 of file Opcode.h.

Constructor & Destructor Documentation

inline_ Opcode::Segment::Segment ( )

inline

Constructor.

Definition at line 20 of file Opcode.h.

{

inline_ Opcode::Segment::Segment ( const Point &  p0, const Point &  p1  )

inline

Constructor.

Definition at line 22 of file Opcode.h.

{

inline_ Opcode::Segment::Segment ( const Segment &  seg)

inline

Copy constructor.

Definition at line 24 of file Opcode.h.

{

inline_ Opcode::Segment::~Segment ( )

inline

Destructor.

Definition at line 26 of file Opcode.h.

{

Member Function Documentation

inline_ Point Opcode::Segment::ComputeDirection ( ) const

inline

Definition at line 29 of file Opcode.h.

{

inline_ void Opcode::Segment::ComputeDirection ( Point &  dir) const

inline

Definition at line 30 of file Opcode.h.

{

inline_ float Opcode::Segment::ComputeLength ( ) const

inline

Definition at line 31 of file Opcode.h.

{

inline_ void Opcode::Segment::ComputePoint ( Point &  pt, float  t  ) const

inline

Computes a point on the segment

Parameters

pt	[out] point on segment
t	[in] point's parameter [t=0 => pt = mP0, t=1 => pt = mP1]

Definition at line 47 of file Opcode.h.

inline_ float Opcode::Segment::ComputeSquareLength ( ) const

inline

Definition at line 32 of file Opcode.h.

{

inline_ float Opcode::Segment::Distance ( const Point &  point, float *  t = null  ) const

inline

Definition at line 50 of file Opcode.h.

inline_ const Point& Opcode::Segment::GetOrigin ( ) const

inline

Definition at line 28 of file Opcode.h.

{

inline_ void Opcode::Segment::SetOriginDirection ( const Point &  origin, const Point &  direction  )

inline

Definition at line 34 of file Opcode.h.

    {

float Segment::SquareDistance	(	const Point &	point,
		float *	t = null
	)		const

Definition at line 30 of file IceSegment.cpp.

References f, mP0, mP1, and Opcode::Point::SquareMagnitude().

{
    Point Diff = point - mP0;
    Point Dir = mP1 - mP0;
    float fT = Diff | Dir;

    if(fT<=0.0f)
    {
        fT = 0.0f;
    }
    else
    {
        float SqrLen= Dir.SquareMagnitude();
        if(fT>=SqrLen)
        {
            fT = 1.0f;
            Diff -= Dir;
        }
        else
        {
            fT /= SqrLen;
            Diff -= fT*Dir;
        }
    }

    if(t)   *t = fT;

    return Diff.SquareMagnitude();
}

Member Data Documentation

Point Opcode::Segment::mP0

Start of segment.

Definition at line 52 of file Opcode.h.

Referenced by SquareDistance().

Point Opcode::Segment::mP1

End of segment.

Definition at line 53 of file Opcode.h.

Referenced by SquareDistance().

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

• src/cmd/collide2/Ice/IceSegment.h
• src/cmd/collide2/Ice/IceSegment.cpp