HLRAlgo_Projector Class Reference

Implements a projector object.
This object is designed to be used in the
removal of hidden lines and is returned by the
Prs3d_Projector::Projector function.
You define the projection of the selected shape
by calling one of the following functions:
More...

#include <HLRAlgo_Projector.hxx>

Public Member Functions
DEFINE_STANDARD_ALLOC	HLRAlgo_Projector ()
	HLRAlgo_Projector (const gp_Ax2 &CS)
	Creates an axonometric projector. <CS> is the viewing coordinate system.
	HLRAlgo_Projector (const gp_Ax2 &CS, const Standard_Real Focus)
	Creates a perspective projector. <CS> is the viewing coordinate system.
	HLRAlgo_Projector (const gp_Trsf &T, const Standard_Boolean Persp, const Standard_Real Focus)
	build a Projector with automatic minmax directions.
	HLRAlgo_Projector (const gp_Trsf &T, const Standard_Boolean Persp, const Standard_Real Focus, const gp_Vec2d &v1, const gp_Vec2d &v2, const gp_Vec2d &v3)
	build a Projector with given minmax directions.
void	Set (const gp_Trsf &T, const Standard_Boolean Persp, const Standard_Real Focus)
void	Directions (gp_Vec2d &D1, gp_Vec2d &D2, gp_Vec2d &D3) const
void	Scaled (const Standard_Boolean On=Standard_False)
	to compute with the given scale and translation.
Standard_Boolean	Perspective () const
	Returns True if there is a perspective transformation.
const gp_Trsf &	Transformation () const
	Returns the active transformation.
const gp_Trsf &	InvertedTransformation () const
	Returns the active inverted transformation.
const gp_Trsf &	FullTransformation () const
	Returns the original transformation.
Standard_Real	Focus () const
	Returns the focal length.
void	Transform (gp_Vec &D) const
void	Transform (gp_Pnt &Pnt) const
void	Project (const gp_Pnt &P, gp_Pnt2d &Pout) const
	Transform and apply perspective if needed.
void	Project (const gp_Pnt &P, Standard_Real &X, Standard_Real &Y, Standard_Real &Z) const
	Transform and apply perspective if needed.
void	Project (const gp_Pnt &P, const gp_Vec &D1, gp_Pnt2d &Pout, gp_Vec2d &D1out) const
	Transform and apply perspective if needed.
gp_Lin	Shoot (const Standard_Real X, const Standard_Real Y) const
	return a line going through the eye towards the 2d point <X,Y>.

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Detailed Description

• HLRBRep_Algo::Projector, or
  
• HLRBRep_PolyAlgo::Projector
  The choice depends on the algorithm, which you are using.
  The parameters of the view are defined at the
  time of construction of a Prs3d_Projector object.
  

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Constructor & Destructor Documentation

DEFINE_STANDARD_ALLOC HLRAlgo_Projector::HLRAlgo_Projector

(

)

HLRAlgo_Projector::HLRAlgo_Projector

(

const gp_Ax2 &

CS

)

HLRAlgo_Projector::HLRAlgo_Projector	(	const gp_Ax2 &	CS,
		const Standard_Real	Focus
	)

HLRAlgo_Projector::HLRAlgo_Projector	(	const gp_Trsf &	T,
		const Standard_Boolean	Persp,
		const Standard_Real	Focus
	)

HLRAlgo_Projector::HLRAlgo_Projector	(	const gp_Trsf &	T,
		const Standard_Boolean	Persp,
		const Standard_Real	Focus,
		const gp_Vec2d &	v1,
		const gp_Vec2d &	v2,
		const gp_Vec2d &	v3
	)

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Member Function Documentation

void HLRAlgo_Projector::Directions	(	gp_Vec2d &	D1,
		gp_Vec2d &	D2,
		gp_Vec2d &	D3
	)		const

Standard_Real HLRAlgo_Projector::Focus

(

)

const

const gp_Trsf& HLRAlgo_Projector::FullTransformation

(

)

const

const gp_Trsf& HLRAlgo_Projector::InvertedTransformation

(

)

const

Standard_Boolean HLRAlgo_Projector::Perspective

(

)

const

void HLRAlgo_Projector::Project	(	const gp_Pnt &	P,
		gp_Pnt2d &	Pout
	)		const

void HLRAlgo_Projector::Project	(	const gp_Pnt &	P,
		Standard_Real &	X,
		Standard_Real &	Y,
		Standard_Real &	Z
	)		const

void HLRAlgo_Projector::Project	(	const gp_Pnt &	P,
		const gp_Vec &	D1,
		gp_Pnt2d &	Pout,
		gp_Vec2d &	D1out
	)		const

void HLRAlgo_Projector::Scaled

(

const Standard_Boolean

On = Standard_False

)

void HLRAlgo_Projector::Set	(	const gp_Trsf &	T,
		const Standard_Boolean	Persp,
		const Standard_Real	Focus
	)

gp_Lin HLRAlgo_Projector::Shoot	(	const Standard_Real	X,
		const Standard_Real	Y
	)		const

void HLRAlgo_Projector::Transform

(

gp_Vec &

D

)

const

void HLRAlgo_Projector::Transform

(

gp_Pnt &

Pnt

)

const

const gp_Trsf& HLRAlgo_Projector::Transformation

(

)

const

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

• HLRAlgo_Projector.hxx