Open CASCADE Technology  7.3.0
Public Member Functions
OpenGl_RenderFilter Class Referenceabstract

Base class for defining element rendering filters. This class can be used in pair with advance rendering passes, and for disabling rendering (setting up) graphical aspects. More...

#include <OpenGl_RenderFilter.hxx>

Inheritance diagram for OpenGl_RenderFilter:
Inheritance graph
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Public Member Functions

virtual Standard_Boolean ShouldRender (const Handle< OpenGl_Workspace > &theWorkspace, const OpenGl_Element *theElement)=0
 Checks whether the element can be rendered or not. More...
 
- 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

Base class for defining element rendering filters. This class can be used in pair with advance rendering passes, and for disabling rendering (setting up) graphical aspects.

Member Function Documentation

◆ ShouldRender()

virtual Standard_Boolean OpenGl_RenderFilter::ShouldRender ( const Handle< OpenGl_Workspace > &  theWorkspace,
const OpenGl_Element theElement 
)
pure virtual

Checks whether the element can be rendered or not.

Parameters
theWorkspace[in] the current workspace.
theElement[in] the element to check.
Returns
True if element can be rendered.

Implemented in OpenGl_LayerList::OpenGl_TransparentFilter, OpenGl_LayerList::OpenGl_OpaqueFilter, OpenGl_RaytraceFilter, and OpenGl_CappingAlgoFilter.


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