Prs3d Class Reference

The Prs3d package provides the following services. More...

#include <Prs3d.hxx>

Static Public Member Functions
static Standard_Boolean	MatchSegment (const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Real aDistance, const gp_Pnt &p1, const gp_Pnt &p2, Standard_Real &dist)
	draws an arrow at a given location, with respect to a given direction. More...
static Standard_Real	GetDeflection (const Graphic3d_Vec3d &theBndMin, const Graphic3d_Vec3d &theBndMax, const Standard_Real theDeviationCoefficient)
	Computes the absolute deflection value based on relative deflection Prs3d_Drawer::DeviationCoefficient(). More...
static Standard_Real	GetDeflection (const Bnd_Box &theBndBox, const Standard_Real theDeviationCoefficient, const Standard_Real theMaximalChordialDeviation)
	Computes the absolute deflection value based on relative deflection Prs3d_Drawer::DeviationCoefficient(). More...
static Handle< Graphic3d_ArrayOfPrimitives >	PrimitivesFromPolylines (const Prs3d_NListOfSequenceOfPnt &thePoints)
	Assembles array of primitives for sequence of polylines. More...
static void	AddPrimitivesGroup (const Handle< Prs3d_Presentation > &thePrs, const Handle< Prs3d_LineAspect > &theAspect, Prs3d_NListOfSequenceOfPnt &thePolylines)
	Add primitives into new group in presentation and clear the list of polylines. More...
static void	AddFreeEdges (TColgp_SequenceOfPnt &theSegments, const Handle< Poly_Triangulation > &thePolyTri, const gp_Trsf &theLocation)
	Add triangulation free edges into sequence of line segments. More...

Detailed Description

The Prs3d package provides the following services.

• a presentation object (the context for all modifications to the display, its presentation will be displayed in every view of an active viewer)
• an attribute manager governing how objects such as color, width, and type of line are displayed; these are generic objects, whereas those in StdPrs are specific geometries and topologies.
• generic algorithms providing default settings for objects such as points, curves, surfaces and shapes
• a root object which provides the abstract framework for the DsgPrs definitions at work in display of dimensions, relations and trihedra.

Member Function Documentation

AddFreeEdges()

static void Prs3d::AddFreeEdges ( TColgp_SequenceOfPnt &  theSegments, const Handle< Poly_Triangulation > &  thePolyTri, const gp_Trsf &  theLocation  )

static

Add triangulation free edges into sequence of line segments.

Parameters

theSegments	[out] sequence of line segments to fill
thePolyTri	[in] triangulation to process
theLocation	[in] transformation to apply

AddPrimitivesGroup()

static void Prs3d::AddPrimitivesGroup ( const Handle< Prs3d_Presentation > &  thePrs, const Handle< Prs3d_LineAspect > &  theAspect, Prs3d_NListOfSequenceOfPnt &  thePolylines  )

static

Add primitives into new group in presentation and clear the list of polylines.

GetDeflection() [1/2]

static Standard_Real Prs3d::GetDeflection ( const Graphic3d_Vec3d &  theBndMin, const Graphic3d_Vec3d &  theBndMax, const Standard_Real  theDeviationCoefficient  )

inlinestatic

Computes the absolute deflection value based on relative deflection Prs3d_Drawer::DeviationCoefficient().

Parameters

theBndMin	[in] bounding box min corner
theBndMax	[in] bounding box max corner
theDeviationCoefficient	[in] relative deflection coefficient from Prs3d_Drawer::DeviationCoefficient()

Returns

absolute deflection coefficient based on bounding box dimensions

GetDeflection() [2/2]

static Standard_Real Prs3d::GetDeflection ( const Bnd_Box &  theBndBox, const Standard_Real  theDeviationCoefficient, const Standard_Real  theMaximalChordialDeviation  )

inlinestatic

Computes the absolute deflection value based on relative deflection Prs3d_Drawer::DeviationCoefficient().

Parameters

theBndBox	[in] bounding box
theDeviationCoefficient	[in] relative deflection coefficient from Prs3d_Drawer::DeviationCoefficient()
theMaximalChordialDeviation	[in] absolute deflection coefficient from Prs3d_Drawer::MaximalChordialDeviation()

Returns

absolute deflection coefficient based on bounding box dimensions or theMaximalChordialDeviation if bounding box is Void or Infinite

MatchSegment()

static Standard_Boolean Prs3d::MatchSegment ( const Standard_Real  X, const Standard_Real  Y, const Standard_Real  Z, const Standard_Real  aDistance, const gp_Pnt &  p1, const gp_Pnt &  p2, Standard_Real &  dist  )

static

draws an arrow at a given location, with respect to a given direction.

PrimitivesFromPolylines()

static Handle< Graphic3d_ArrayOfPrimitives > Prs3d::PrimitivesFromPolylines ( const Prs3d_NListOfSequenceOfPnt &  thePoints )

static

Assembles array of primitives for sequence of polylines.

Parameters

thePoints

[in] the polylines sequence

Returns

array of primitives

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

• Prs3d.hxx