Open CASCADE Technology  7.4.1.dev
Public Member Functions
Vrml_LOD Class Reference

defines a LOD (level of detailization) node of VRML specifying properties of geometry and its appearance. This group node is used to allow applications to switch between various representations of objects automatically. The children of this node typically represent the same object or objects at the varying of Levels Of Detail (LOD), from highest detail to lowest. More...

#include <Vrml_LOD.hxx>

Inheritance diagram for Vrml_LOD:
Inheritance graph
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Public Member Functions

 Vrml_LOD ()
 
 Vrml_LOD (const Handle< TColStd_HArray1OfReal > &aRange, const gp_Vec &aCenter)
 
void SetRange (const Handle< TColStd_HArray1OfReal > &aRange)
 
Handle< TColStd_HArray1OfReal > Range () const
 
void SetCenter (const gp_Vec &aCenter)
 
gp_Vec Center () const
 
Standard_OStreamPrint (Standard_OStream &anOStream) const
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::handle< Standard_Type > &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean IsKind (const opencascade::handle< Standard_Type > &theType) const
 Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_Boolean IsKind (const Standard_CString theTypeName) const
 Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_TransientThis () const
 Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 

Detailed Description

defines a LOD (level of detailization) node of VRML specifying properties of geometry and its appearance. This group node is used to allow applications to switch between various representations of objects automatically. The children of this node typically represent the same object or objects at the varying of Levels Of Detail (LOD), from highest detail to lowest.

The specified center point of the LOD is transformed by current transformation into world space, and yhe distancefrom the transformed center to the world-space eye point is calculated. If thedistance is less than the first value in the ranges array, than the first child of the LOD group is drawn. If between the first and second values in the range array, the second child is drawn, etc. If there are N values in the range array, the LOD group should have N+1 children. Specifying too few children will result in the last child being used repeatedly for the lowest lewels of detail; if too many children are specified, the extra children w ll be ignored. Each value in the ranges array should be greater than the previous value, otherwise results are undefined.

Constructor & Destructor Documentation

◆ Vrml_LOD() [1/2]

Vrml_LOD::Vrml_LOD ( )

◆ Vrml_LOD() [2/2]

Vrml_LOD::Vrml_LOD ( const Handle< TColStd_HArray1OfReal > &  aRange,
const gp_Vec aCenter 
)

Member Function Documentation

◆ Center()

gp_Vec Vrml_LOD::Center ( ) const

◆ Print()

Standard_OStream& Vrml_LOD::Print ( Standard_OStream anOStream) const

◆ Range()

Handle< TColStd_HArray1OfReal > Vrml_LOD::Range ( ) const

◆ SetCenter()

void Vrml_LOD::SetCenter ( const gp_Vec aCenter)

◆ SetRange()

void Vrml_LOD::SetRange ( const Handle< TColStd_HArray1OfReal > &  aRange)

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