In order to have the precision required in industrial design, drawings need to offer the possibility of removing lines, which are hidden in a given projection. To do this, the Hidden Line Removal component provides two algorithms: HLRBRep_Algo and HLRBRep_PolyAlgo. These algorithms remove or indicate lines hidden by surfaces. For a given projection, they calculate a set of lines characteristic of the object being represented. They are also used in conjunction with extraction utilities, which reconstruct a new, simplified shape from a selection of calculation results. This new shape is made up of edges, which represent the lines of the visualized shape in a plane. This plane is the projection plane. HLRBRep_Algo takes into account the shape itself. HLRBRep_PolyAlgo works with a polyhedral simplification of the shape. When you use HLRBRep_Algo, you obtain an exact result, whereas, when you use HLRBRep_PolyAlgo, you reduce computation time but obtain polygonal segments. More...

#include <HLRAlgo.hxx>

Static Public Member Functions
static void	UpdateMinMax (const Standard_Real x, const Standard_Real y, const Standard_Real z, const Standard_Address Min, const Standard_Address Max)
	Iterator on the visible or hidden parts of an EdgeStatus. More...

static void	EnlargeMinMax (const Standard_Real tol, const Standard_Address Min, const Standard_Address Max)

static void	InitMinMax (const Standard_Real Big, const Standard_Address Min, const Standard_Address Max)

static void	EncodeMinMax (const Standard_Address Min, const Standard_Address Max, const Standard_Address MinMax)

static Standard_Real	SizeBox (const Standard_Address Min, const Standard_Address Max)

static void	DecodeMinMax (const Standard_Address MinMax, const Standard_Address Min, const Standard_Address Max)

static void	CopyMinMax (const Standard_Address IMin, const Standard_Address IMax, const Standard_Address OMin, const Standard_Address OMax)

static void	AddMinMax (const Standard_Address IMin, const Standard_Address IMax, const Standard_Address OMin, const Standard_Address OMax)

Detailed Description

In order to have the precision required in industrial design, drawings need to offer the possibility of removing lines, which are hidden in a given projection. To do this, the Hidden Line Removal component provides two algorithms: HLRBRep_Algo and HLRBRep_PolyAlgo. These algorithms remove or indicate lines hidden by surfaces. For a given projection, they calculate a set of lines characteristic of the object being represented. They are also used in conjunction with extraction utilities, which reconstruct a new, simplified shape from a selection of calculation results. This new shape is made up of edges, which represent the lines of the visualized shape in a plane. This plane is the projection plane. HLRBRep_Algo takes into account the shape itself. HLRBRep_PolyAlgo works with a polyhedral simplification of the shape. When you use HLRBRep_Algo, you obtain an exact result, whereas, when you use HLRBRep_PolyAlgo, you reduce computation time but obtain polygonal segments.

Member Function Documentation

static void HLRAlgo::AddMinMax	(	const Standard_Address	IMin,
		const Standard_Address	IMax,
		const Standard_Address	OMin,
		const Standard_Address	OMax
	)

static

static void HLRAlgo::CopyMinMax	(	const Standard_Address	IMin,
		const Standard_Address	IMax,
		const Standard_Address	OMin,
		const Standard_Address	OMax
	)

static

static void HLRAlgo::DecodeMinMax	(	const Standard_Address	MinMax,
		const Standard_Address	Min,
		const Standard_Address	Max
	)

static

static void HLRAlgo::EncodeMinMax	(	const Standard_Address	Min,
		const Standard_Address	Max,
		const Standard_Address	MinMax
	)

static

static void HLRAlgo::EnlargeMinMax	(	const Standard_Real	tol,
		const Standard_Address	Min,
		const Standard_Address	Max
	)

static

static void HLRAlgo::InitMinMax	(	const Standard_Real	Big,
		const Standard_Address	Min,
		const Standard_Address	Max
	)

static

static Standard_Real HLRAlgo::SizeBox	(	const Standard_Address	Min,
		const Standard_Address	Max
	)

static

static void HLRAlgo::UpdateMinMax	(	const Standard_Real	x,
		const Standard_Real	y,
		const Standard_Real	z,
		const Standard_Address	Min,
		const Standard_Address	Max
	)

static

Iterator on the visible or hidden parts of an EdgeStatus.

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

HLRAlgo.hxx

Static Public Member Functions

Detailed Description

Member Function Documentation