Open CASCADE Technology  6.9.0
Public Member Functions | Protected Member Functions | Protected Attributes | Friends

PrsMgr_PresentableObject Class Reference

A framework to supply the Graphic3d structure of the object to be presented. On the first display request, this structure is created by calling the appropriate algorithm and retaining this frameworkfor further display. This abstract framework is inherited in Application Interactive Services (AIS), notably in: More...

#include <PrsMgr_PresentableObject.hxx>

Inheritance diagram for PrsMgr_PresentableObject:
Inheritance graph
[legend]

Public Member Functions

PrsMgr_PresentationsPresentations ()
 
PrsMgr_TypeOfPresentation3d TypeOfPresentation3d () const
 Returns information on whether the object accepts display in HLR mode or not. More...
 
virtual void SetTransformPersistence (const Graphic3d_TransModeFlags &aFlag, const gp_Pnt &APoint)
 Sets up Transform Persistence Mode for this object. This function used to lock in object position, rotation and / or zooming relative to camera position. Object will be drawn in the origin setted by APoint parameter (except Graphic3d_TMF_TriedronPers flag. More...
 
void SetTransformPersistence (const Graphic3d_TransModeFlags &aFlag)
 Calls previous method with point (0,0,0) More...
 
Graphic3d_TransModeFlags GetTransformPersistenceMode () const
 Gets Transform Persistence Mode for this object. More...
 
gp_Pnt GetTransformPersistencePoint () const
 Gets point of transform persistence for this object. More...
 
void SetTypeOfPresentation (const PrsMgr_TypeOfPresentation3d aType)
 
void SetToUpdate (const Standard_Integer aMode)
 flags the Prs of mode <AMode> to be Updated. the Update will be done when needed. More...
 
void SetToUpdate ()
 flags all the Presentations to be Updated. More...
 
void ToBeUpdated (TColStd_ListOfInteger &ListOfMode) const
 gives the list of modes which are flagged "to be updated". More...
 
virtual void SetLocalTransformation (const gp_Trsf &theTransformation)
 Sets local transformation to theTransformation. More...
 
Standard_Boolean HasTransformation () const
 Returns true if object has a transformation that is different from the identity. More...
 
const gp_TrsfLocalTransformation () const
 
const gp_TrsfTransformation () const
 
const gp_TrsfInversedTransformation () const
 
virtual void ResetTransformation ()
 resets local transformation to identity. More...
 
virtual void UpdateTransformation ()
 
virtual void UpdateTransformation (const Handle< Prs3d_Presentation > &P)
 
virtual void SetZLayer (const Graphic3d_ZLayerId theLayerId)
 Set Z layer ID and update all presentations of the presentable object. The layers mechanism allows drawing objects in higher layers in overlay of objects in lower layers. More...
 
Graphic3d_ZLayerId ZLayer () const
 Get ID of Z layer. More...
 
virtual void AddClipPlane (const Handle< Graphic3d_ClipPlane > &thePlane)
 Adds clip plane for graphical clipping for all display mode presentations. The composition of clip planes truncates the rendering space to convex volume. Please be aware that number of supported clip plane is limited. The planes which exceed the limit are ignored. Besides of this, some planes can be already set in view where the object is shown: the number of these planes should be substracted from limit to predict the maximum possible number of object clipping planes. More...
 
virtual void RemoveClipPlane (const Handle< Graphic3d_ClipPlane > &thePlane)
 Removes previously added clip plane. More...
 
virtual void SetClipPlanes (const Graphic3d_SequenceOfHClipPlane &thePlanes)
 Set clip planes for graphical clipping for all display mode presentations. The composition of clip planes truncates the rendering space to convex volume. Please be aware that number of supported clip plane is limited. The planes which exceed the limit are ignored. Besides of this, some planes can be already set in view where the object is shown: the number of these planes should be substracted from limit to predict the maximum possible number of object clipping planes. More...
 
const
Graphic3d_SequenceOfHClipPlane
GetClipPlanes () const
 Get clip planes. More...
 
virtual void SetMutable (const Standard_Boolean theIsMutable)
 Sets if the object has mutable nature (content or location will be changed regularly). This method should be called before object displaying to take effect. More...
 
const Standard_Boolean IsMutable () const
 Returns true if object has mutable nature (content or location are be changed regularly). Mutable object will be managed in different way than static onces (another optimizations). More...
 
virtual void AddChild (const Handle< PrsMgr_PresentableObject > &theObject)
 Makes theObject child of current object in scene hierarchy. More...
 
virtual void RemoveChild (const Handle< PrsMgr_PresentableObject > &theObject)
 Removes theObject from children of current object in scene hierarchy. More...
 
const
PrsMgr_ListOfPresentableObjects
Children () const
 Returns children of the current object. More...
 
const Standard_Boolean HasOwnPresentations () const
 Returns true if object should have own presentations. More...
 
const
PrsMgr_PresentableObjectPointer 
Parent () const
 Returns parent of current object in scene hierarchy. More...
 
- Public Member Functions inherited from MMgt_TShared
virtual void Delete () const
 Memory deallocator for transient classes. 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 const
Handle_Standard_Type & 
DynamicType () const
 Returns a type information object about this object. More...
 
Standard_Boolean IsInstance (const 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 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...
 
virtual Handle_Standard_Transient This () const
 Returns a Handle which references this object. Must never be called to objects created in stack. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 

Protected Member Functions

 PrsMgr_PresentableObject (const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d=PrsMgr_TOP_AllView)
 
virtual ~PrsMgr_PresentableObject ()
 
virtual void Compute (const Handle< PrsMgr_PresentationManager3d > &aPresentationManager, const Handle< Prs3d_Presentation > &aPresentation, const Standard_Integer aMode=0)
 Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. aPresentableObject has the display mode aMode; this has the default value of 0, that is, the wireframe display mode. More...
 
virtual void Compute (const Handle< Prs3d_Projector > &aProjector, const Handle< Prs3d_Presentation > &aPresentation)
 Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. Each of the views in the viewer and every modification such as rotation, for example, entails recalculation. It must be redefined to implement hidden line removal for the object. The user never calls this method himself. This is done via the InteractiveContext object and is dependent on the point of view from which the object is displayed. More...
 
virtual void Compute (const Handle< Prs3d_Projector > &aProjector, const Handle< Geom_Transformation > &aTrsf, const Handle< Prs3d_Presentation > &aPresentation)
 Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. A point of view is provided by the projector aProjector, and the geometric transformation which has transformed associated presentable objects is specified by aTrsf. This function is to be used in case where a hidden line removal display cannot be calculated automatically. This occurs when associated presentable objects have been transformed geometrically, but not translated. Warning The transformation aTrsf must be applied to the object before computation. More...
 
void Update (const Standard_Boolean AllModes=Standard_False)
 recomputes all presentations of the object. More...
 
void Update (const Standard_Integer aMode, const Standard_Boolean ClearOther)
 Recomputes the presentation in the given mode. If ClearOther is true, other presentation will be cleared. More...
 
virtual void Fill (const Handle< PrsMgr_PresentationManager > &aPresentationManager, const Handle< PrsMgr_Presentation > &aPresentation, const Standard_Integer aMode=0)
 High-level interface for controlling polygon offsets. More...
 
virtual void SetCombinedParentTransform (const gp_Trsf &theTransformation)
 Sets myCombinedParentTransform to theTransformation. Thus object receives transformation from parent node and able to derive its own. More...
 
virtual void UpdateClipping ()
 General virtual method for internal update of presentation state when some modifications on list of clip planes occurs. Base implementation propagate clip planes to every presentation. More...
 

Protected Attributes

PrsMgr_Presentations myPresentations
 
PrsMgr_TypeOfPresentation3d myTypeOfPresentation3d
 
Graphic3d_SequenceOfHClipPlane myClipPlanes
 
Standard_Boolean myIsMutable
 
Graphic3d_ZLayerId myZLayer
 
Standard_Boolean myHasOwnPresentations
 

Friends

Handle< Graphic3d_StructurePrsMgr_Presentation::Compute (const Handle< Graphic3d_DataStructureManager > &theProjector)
 
void PrsMgr_Presentation::Compute (const Handle< Graphic3d_DataStructureManager > &theProjector, const Handle< Graphic3d_Structure > &theGivenStruct)
 
Handle< Graphic3d_StructurePrsMgr_Presentation::Compute (const Handle< Graphic3d_DataStructureManager > &theProjector, const Handle< Geom_Transformation > &theTrsf)
 
void PrsMgr_Presentation::Compute (const Handle< Graphic3d_DataStructureManager > &theProjector, const Handle< Geom_Transformation > &theTrsf, const Handle< Graphic3d_Structure > &theGivenStruct)
 

Detailed Description

A framework to supply the Graphic3d structure of the object to be presented. On the first display request, this structure is created by calling the appropriate algorithm and retaining this frameworkfor further display. This abstract framework is inherited in Application Interactive Services (AIS), notably in:

Constructor & Destructor Documentation

PrsMgr_PresentableObject::PrsMgr_PresentableObject ( const PrsMgr_TypeOfPresentation3d  aTypeOfPresentation3d = PrsMgr_TOP_AllView)
protected
virtual PrsMgr_PresentableObject::~PrsMgr_PresentableObject ( )
protectedvirtual

Member Function Documentation

virtual void PrsMgr_PresentableObject::AddChild ( const Handle< PrsMgr_PresentableObject > &  theObject)
virtual

Makes theObject child of current object in scene hierarchy.

virtual void PrsMgr_PresentableObject::AddClipPlane ( const Handle< Graphic3d_ClipPlane > &  thePlane)
virtual

Adds clip plane for graphical clipping for all display mode presentations. The composition of clip planes truncates the rendering space to convex volume. Please be aware that number of supported clip plane is limited. The planes which exceed the limit are ignored. Besides of this, some planes can be already set in view where the object is shown: the number of these planes should be substracted from limit to predict the maximum possible number of object clipping planes.

Parameters
thePlane[in] the clip plane to be appended to map of clip planes.
const PrsMgr_ListOfPresentableObjects& PrsMgr_PresentableObject::Children ( ) const

Returns children of the current object.

virtual void PrsMgr_PresentableObject::Compute ( const Handle< PrsMgr_PresentationManager3d > &  aPresentationManager,
const Handle< Prs3d_Presentation > &  aPresentation,
const Standard_Integer  aMode = 0 
)
protectedvirtual

Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. aPresentableObject has the display mode aMode; this has the default value of 0, that is, the wireframe display mode.

Reimplemented in AIS_AngleDimension, AIS_Shape, AIS_LengthDimension, AIS_TexturedShape, AIS_DiameterDimension, AIS_RadiusDimension, AIS_PlaneTrihedron, Voxel_Prs, AIS_ColoredShape, AIS_PointCloud, AIS_MultipleConnectedInteractive, AIS_Point, MeshVS_Mesh, QABugs_MyText, QABugs_PresentableObject, StdSelect_Shape, and XCAFPrs_AISObject.

virtual void PrsMgr_PresentableObject::Compute ( const Handle< Prs3d_Projector > &  aProjector,
const Handle< Prs3d_Presentation > &  aPresentation 
)
protectedvirtual

Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. Each of the views in the viewer and every modification such as rotation, for example, entails recalculation. It must be redefined to implement hidden line removal for the object. The user never calls this method himself. This is done via the InteractiveContext object and is dependent on the point of view from which the object is displayed.

Reimplemented in AIS_Shape, and AIS_MultipleConnectedInteractive.

virtual void PrsMgr_PresentableObject::Compute ( const Handle< Prs3d_Projector > &  aProjector,
const Handle< Geom_Transformation > &  aTrsf,
const Handle< Prs3d_Presentation > &  aPresentation 
)
protectedvirtual

Calculates the 3D view aPresentation and its updates. The latter are managed by aPresentationManager. A point of view is provided by the projector aProjector, and the geometric transformation which has transformed associated presentable objects is specified by aTrsf. This function is to be used in case where a hidden line removal display cannot be calculated automatically. This occurs when associated presentable objects have been transformed geometrically, but not translated. Warning The transformation aTrsf must be applied to the object before computation.

Reimplemented in AIS_Shape, AIS_Plane, AIS_Trihedron, AIS_Axis, AIS_PlaneTrihedron, AIS_FixRelation, AIS_EqualDistanceRelation, AIS_MultipleConnectedInteractive, AIS_Chamf2dDimension, AIS_SymmetricRelation, AIS_TangentRelation, AIS_Chamf3dDimension, AIS_IdenticRelation, AIS_Point, AIS_ParallelRelation, AIS_PerpendicularRelation, AIS_Circle, AIS_ConcentricRelation, AIS_MaxRadiusDimension, AIS_MidPointRelation, AIS_OffsetDimension, AIS_Line, AIS_MinRadiusDimension, AIS_EqualRadiusRelation, and StdSelect_Shape.

virtual void PrsMgr_PresentableObject::Fill ( const Handle< PrsMgr_PresentationManager > &  aPresentationManager,
const Handle< PrsMgr_Presentation > &  aPresentation,
const Standard_Integer  aMode = 0 
)
protectedvirtual

High-level interface for controlling polygon offsets.

const Graphic3d_SequenceOfHClipPlane& PrsMgr_PresentableObject::GetClipPlanes ( ) const

Get clip planes.

Returns
set of previously added clip planes for all display mode presentations.
Graphic3d_TransModeFlags PrsMgr_PresentableObject::GetTransformPersistenceMode ( ) const

Gets Transform Persistence Mode for this object.

gp_Pnt PrsMgr_PresentableObject::GetTransformPersistencePoint ( ) const

Gets point of transform persistence for this object.

const Standard_Boolean PrsMgr_PresentableObject::HasOwnPresentations ( ) const

Returns true if object should have own presentations.

Standard_Boolean PrsMgr_PresentableObject::HasTransformation ( ) const

Returns true if object has a transformation that is different from the identity.

const gp_Trsf& PrsMgr_PresentableObject::InversedTransformation ( ) const
const Standard_Boolean PrsMgr_PresentableObject::IsMutable ( ) const

Returns true if object has mutable nature (content or location are be changed regularly). Mutable object will be managed in different way than static onces (another optimizations).

const gp_Trsf& PrsMgr_PresentableObject::LocalTransformation ( ) const
const PrsMgr_PresentableObjectPointer PrsMgr_PresentableObject::Parent ( ) const

Returns parent of current object in scene hierarchy.

PrsMgr_Presentations& PrsMgr_PresentableObject::Presentations ( )
virtual void PrsMgr_PresentableObject::RemoveChild ( const Handle< PrsMgr_PresentableObject > &  theObject)
virtual

Removes theObject from children of current object in scene hierarchy.

virtual void PrsMgr_PresentableObject::RemoveClipPlane ( const Handle< Graphic3d_ClipPlane > &  thePlane)
virtual

Removes previously added clip plane.

Parameters
thePlane[in] the clip plane to be removed from map of clip planes.
virtual void PrsMgr_PresentableObject::ResetTransformation ( )
virtual

resets local transformation to identity.

Reimplemented in SelectMgr_SelectableObject.

virtual void PrsMgr_PresentableObject::SetClipPlanes ( const Graphic3d_SequenceOfHClipPlane thePlanes)
virtual

Set clip planes for graphical clipping for all display mode presentations. The composition of clip planes truncates the rendering space to convex volume. Please be aware that number of supported clip plane is limited. The planes which exceed the limit are ignored. Besides of this, some planes can be already set in view where the object is shown: the number of these planes should be substracted from limit to predict the maximum possible number of object clipping planes.

virtual void PrsMgr_PresentableObject::SetCombinedParentTransform ( const gp_Trsf theTransformation)
protectedvirtual

Sets myCombinedParentTransform to theTransformation. Thus object receives transformation from parent node and able to derive its own.

virtual void PrsMgr_PresentableObject::SetLocalTransformation ( const gp_Trsf theTransformation)
virtual

Sets local transformation to theTransformation.

Reimplemented in AIS_Trihedron.

virtual void PrsMgr_PresentableObject::SetMutable ( const Standard_Boolean  theIsMutable)
virtual

Sets if the object has mutable nature (content or location will be changed regularly). This method should be called before object displaying to take effect.

void PrsMgr_PresentableObject::SetToUpdate ( const Standard_Integer  aMode)

flags the Prs of mode <AMode> to be Updated. the Update will be done when needed.

void PrsMgr_PresentableObject::SetToUpdate ( )

flags all the Presentations to be Updated.

virtual void PrsMgr_PresentableObject::SetTransformPersistence ( const Graphic3d_TransModeFlags aFlag,
const gp_Pnt APoint 
)
virtual

Sets up Transform Persistence Mode for this object. This function used to lock in object position, rotation and / or zooming relative to camera position. Object will be drawn in the origin setted by APoint parameter (except Graphic3d_TMF_TriedronPers flag.

  • see description later). aFlag should be:
  • Graphic3d_TMF_None - no persistence attributes (reset);
  • Graphic3d_TMF_PanPers - object doesn't move;
  • Graphic3d_TMF_ZoomPers - object doesn't resize;
  • Graphic3d_TMF_RotatePers - object doesn't rotate;
  • Graphic3d_TMF_FullPers - pan, zoom and rotate transform persistence;
  • Graphic3d_TMF_TriedronPers - object behaves like trihedron;
  • combination (Graphic3d_TMF_PanPers | Graphic3d_TMF_ZoomPers);
  • combination (Graphic3d_TMF_PanPers | Graphic3d_TMF_RotatePers);
  • combination (Graphic3d_TMF_ZoomPers | Graphic3d_TMF_RotatePers). If Graphic3d_TMF_TriedronPers or Graphic3d_TMF_2d persistence mode selected APoint coordinates X and Y means:
  • X = 0.0, Y = 0.0 - center of view window;
  • X > 0.0, Y > 0.0 - right upper corner of view window;
  • X > 0.0, Y < 0.0 - right lower corner of view window;
  • X < 0.0, Y > 0.0 - left upper corner of view window;
  • X < 0.0, Y < 0.0 - left lower corner of view window. And Z coordinate defines the gap from border of view window (except center position).
void PrsMgr_PresentableObject::SetTransformPersistence ( const Graphic3d_TransModeFlags aFlag)

Calls previous method with point (0,0,0)

void PrsMgr_PresentableObject::SetTypeOfPresentation ( const PrsMgr_TypeOfPresentation3d  aType)
virtual void PrsMgr_PresentableObject::SetZLayer ( const Graphic3d_ZLayerId  theLayerId)
virtual

Set Z layer ID and update all presentations of the presentable object. The layers mechanism allows drawing objects in higher layers in overlay of objects in lower layers.

Reimplemented in SelectMgr_SelectableObject.

void PrsMgr_PresentableObject::ToBeUpdated ( TColStd_ListOfInteger ListOfMode) const

gives the list of modes which are flagged "to be updated".

const gp_Trsf& PrsMgr_PresentableObject::Transformation ( ) const
PrsMgr_TypeOfPresentation3d PrsMgr_PresentableObject::TypeOfPresentation3d ( ) const

Returns information on whether the object accepts display in HLR mode or not.

void PrsMgr_PresentableObject::Update ( const Standard_Boolean  AllModes = Standard_False)
protected

recomputes all presentations of the object.

void PrsMgr_PresentableObject::Update ( const Standard_Integer  aMode,
const Standard_Boolean  ClearOther 
)
protected

Recomputes the presentation in the given mode. If ClearOther is true, other presentation will be cleared.

virtual void PrsMgr_PresentableObject::UpdateClipping ( )
protectedvirtual

General virtual method for internal update of presentation state when some modifications on list of clip planes occurs. Base implementation propagate clip planes to every presentation.

virtual void PrsMgr_PresentableObject::UpdateTransformation ( )
virtual

Reimplemented in SelectMgr_SelectableObject.

virtual void PrsMgr_PresentableObject::UpdateTransformation ( const Handle< Prs3d_Presentation > &  P)
virtual
Graphic3d_ZLayerId PrsMgr_PresentableObject::ZLayer ( ) const

Get ID of Z layer.

Friends And Related Function Documentation

Handle< Graphic3d_Structure > PrsMgr_Presentation::Compute ( const Handle< Graphic3d_DataStructureManager > &  theProjector)
friend
void PrsMgr_Presentation::Compute ( const Handle< Graphic3d_DataStructureManager > &  theProjector,
const Handle< Graphic3d_Structure > &  theGivenStruct 
)
friend
Handle< Graphic3d_Structure > PrsMgr_Presentation::Compute ( const Handle< Graphic3d_DataStructureManager > &  theProjector,
const Handle< Geom_Transformation > &  theTrsf 
)
friend
void PrsMgr_Presentation::Compute ( const Handle< Graphic3d_DataStructureManager > &  theProjector,
const Handle< Geom_Transformation > &  theTrsf,
const Handle< Graphic3d_Structure > &  theGivenStruct 
)
friend

Field Documentation

Graphic3d_SequenceOfHClipPlane PrsMgr_PresentableObject::myClipPlanes
protected
Standard_Boolean PrsMgr_PresentableObject::myHasOwnPresentations
protected
Standard_Boolean PrsMgr_PresentableObject::myIsMutable
protected
PrsMgr_Presentations PrsMgr_PresentableObject::myPresentations
protected
PrsMgr_TypeOfPresentation3d PrsMgr_PresentableObject::myTypeOfPresentation3d
protected
Graphic3d_ZLayerId PrsMgr_PresentableObject::myZLayer
protected

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