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496 lines
21 KiB
C++
496 lines
21 KiB
C++
// Created on: 1991-06-12
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// Created by: NW,JPB,CAL
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Graphic3d_Structure_HeaderFile
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#define _Graphic3d_Structure_HeaderFile
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#include <Graphic3d_CStructure.hxx>
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#include <Graphic3d_MapOfStructure.hxx>
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#include <Graphic3d_SequenceOfGroup.hxx>
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#include <Graphic3d_SequenceOfHClipPlane.hxx>
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#include <Graphic3d_TypeOfConnection.hxx>
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#include <Graphic3d_TypeOfStructure.hxx>
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#include <Graphic3d_TransformPers.hxx>
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#include <Graphic3d_ZLayerId.hxx>
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#include <NCollection_IndexedMap.hxx>
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class Graphic3d_StructureManager;
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class Graphic3d_DataStructureManager;
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class Bnd_Box;
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DEFINE_STANDARD_HANDLE(Graphic3d_Structure, Standard_Transient)
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//! This class allows the definition a graphic object.
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//! This graphic structure can be displayed, erased, or highlighted.
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//! This graphic structure can be connected with another graphic structure.
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class Graphic3d_Structure : public Standard_Transient
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{
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DEFINE_STANDARD_RTTIEXT(Graphic3d_Structure, Standard_Transient)
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friend class Graphic3d_Group;
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public:
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//! Creates a graphic object in the manager theManager.
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//! It will appear in all the views of the visualiser.
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//! The structure is not displayed when it is created.
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//! @param theManager structure manager holding this structure
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//! @param theLinkPrs another structure for creating a shadow (linked) structure
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Standard_EXPORT Graphic3d_Structure (const Handle(Graphic3d_StructureManager)& theManager,
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const Handle(Graphic3d_Structure)& theLinkPrs = Handle(Graphic3d_Structure)());
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//! if WithDestruction == Standard_True then
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//! suppress all the groups of primitives in the structure.
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//! and it is mandatory to create a new group in <me>.
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//! if WithDestruction == Standard_False then
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//! clears all the groups of primitives in the structure.
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//! and all the groups are conserved and empty.
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//! They will be erased at the next screen update.
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//! The structure itself is conserved.
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//! The transformation and the attributes of <me> are conserved.
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//! The childs of <me> are conserved.
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virtual void Clear (const Standard_Boolean WithDestruction = Standard_True)
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{
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clear (WithDestruction);
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}
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//! Suppresses the structure <me>.
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//! It will be erased at the next screen update.
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Standard_EXPORT virtual ~Graphic3d_Structure();
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//! Displays the structure <me> in all the views of the visualiser.
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Standard_EXPORT virtual void Display();
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//! Returns the current display priority for this structure.
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Graphic3d_DisplayPriority DisplayPriority() const { return myCStructure->Priority(); }
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//! Modifies the order of displaying the structure.
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//! Values are between 0 and 10.
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//! Structures are drawn according to their display priorities in ascending order.
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//! A structure of priority 10 is displayed the last and appears over the others.
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//! The default value is 5.
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//! Warning: If structure is displayed then the SetDisplayPriority method erases it and displays with the new priority.
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//! Raises Graphic3d_PriorityDefinitionError if Priority is greater than 10 or a negative value.
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Standard_EXPORT void SetDisplayPriority (const Graphic3d_DisplayPriority thePriority);
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Standard_DEPRECATED("Deprecated since OCCT7.7, Graphic3d_DisplayPriority should be passed instead of integer number to SetDisplayPriority()")
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void SetDisplayPriority (const Standard_Integer thePriority) { SetDisplayPriority ((Graphic3d_DisplayPriority )thePriority); }
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//! Reset the current priority of the structure to the previous priority.
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//! Warning: If structure is displayed then the SetDisplayPriority() method erases it and displays with the previous priority.
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Standard_EXPORT void ResetDisplayPriority();
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//! Erases this structure in all the views of the visualiser.
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virtual void Erase() { erase(); }
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//! Highlights the structure in all the views with the given style
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//! @param theStyle [in] the style (type of highlighting: box/color, color and opacity)
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//! @param theToUpdateMgr [in] defines whether related computed structures will be
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//! highlighted via structure manager or not
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Standard_EXPORT void Highlight (const Handle(Graphic3d_PresentationAttributes)& theStyle, const Standard_Boolean theToUpdateMgr = Standard_True);
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//! Suppress the structure <me>.
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//! It will be erased at the next screen update.
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//! Warning: No more graphic operations in <me> after this call.
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//! Category: Methods to modify the class definition
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Standard_EXPORT void Remove();
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//! Computes axis-aligned bounding box of a structure.
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Standard_EXPORT virtual void CalculateBoundBox();
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//! Sets infinite flag.
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//! When TRUE, the MinMaxValues method returns:
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//! theXMin = theYMin = theZMin = RealFirst().
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//! theXMax = theYMax = theZMax = RealLast().
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//! By default, structure is created not infinite but empty.
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void SetInfiniteState (const Standard_Boolean theToSet)
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{
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if (!myCStructure.IsNull()) { myCStructure->IsInfinite = theToSet ? 1 : 0; }
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}
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//! Set Z layer ID for the structure. The Z layer mechanism
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//! allows to display structures presented in higher layers in overlay
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//! of structures in lower layers by switching off z buffer depth
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//! test between layers
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Standard_EXPORT void SetZLayer (const Graphic3d_ZLayerId theLayerId);
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//! Get Z layer ID of displayed structure.
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//! The method returns -1 if the structure has no ID (deleted from graphic driver).
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Graphic3d_ZLayerId GetZLayer() const { return myCStructure->ZLayer(); }
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//! Changes a sequence of clip planes slicing the structure on rendering.
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//! @param thePlanes [in] the set of clip planes.
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void SetClipPlanes (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes)
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{
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if (!myCStructure.IsNull()) { myCStructure->SetClipPlanes (thePlanes); }
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}
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//! Get clip planes slicing the structure on rendering.
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//! @return set of clip planes.
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const Handle(Graphic3d_SequenceOfHClipPlane)& ClipPlanes() const { return myCStructure->ClipPlanes(); }
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//! Modifies the visibility indicator to Standard_True or
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//! Standard_False for the structure <me>.
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//! The default value at the definition of <me> is
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//! Standard_True.
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Standard_EXPORT void SetVisible (const Standard_Boolean AValue);
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//! Modifies the visualisation mode for the structure <me>.
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Standard_EXPORT virtual void SetVisual (const Graphic3d_TypeOfStructure AVisual);
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//! Modifies the minimum and maximum zoom coefficients
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//! for the structure <me>.
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//! The default value at the definition of <me> is unlimited.
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//! Category: Methods to modify the class definition
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//! Warning: Raises StructureDefinitionError if <LimitInf> is
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//! greater than <LimitSup> or if <LimitInf> or
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//! <LimitSup> is a negative value.
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Standard_EXPORT void SetZoomLimit (const Standard_Real LimitInf, const Standard_Real LimitSup);
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//! Marks the structure <me> representing wired structure needed for highlight only so it won't be added to BVH tree.
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void SetIsForHighlight (const Standard_Boolean isForHighlight)
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{
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if (!myCStructure.IsNull()) { myCStructure->IsForHighlight = isForHighlight; }
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}
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//! Suppresses the highlight for the structure <me>
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//! in all the views of the visualiser.
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Standard_EXPORT void UnHighlight();
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virtual void Compute()
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{
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//
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}
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//! Returns the new Structure defined for the new visualization
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virtual void computeHLR (const Handle(Graphic3d_Camera)& theProjector,
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Handle(Graphic3d_Structure)& theStructure)
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{
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(void )theProjector;
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(void )theStructure;
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}
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//! Forces a new construction of the structure <me>
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//! if <me> is displayed and TOS_COMPUTED.
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Standard_EXPORT void ReCompute();
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//! Forces a new construction of the structure <me>
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//! if <me> is displayed in <aProjetor> and TOS_COMPUTED.
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Standard_EXPORT void ReCompute (const Handle(Graphic3d_DataStructureManager)& aProjector);
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//! Returns the groups sequence included in this structure.
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const Graphic3d_SequenceOfGroup& Groups() const { return myCStructure->Groups(); }
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//! Returns the current number of groups in this structure.
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Standard_Integer NumberOfGroups() const { return myCStructure->Groups().Length(); }
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//! Append new group to this structure.
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Standard_EXPORT Handle(Graphic3d_Group) NewGroup();
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//! Returns the last created group or creates new one if list is empty.
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Handle(Graphic3d_Group) CurrentGroup()
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{
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if (Groups().IsEmpty())
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{
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return NewGroup();
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}
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return Groups().Last();
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}
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//! Returns the highlight attributes.
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const Handle(Graphic3d_PresentationAttributes)& HighlightStyle() const { return myCStructure->HighlightStyle(); }
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//! Returns TRUE if this structure is deleted (after Remove() call).
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Standard_Boolean IsDeleted() const { return myCStructure.IsNull(); }
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//! Returns the display indicator for this structure.
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virtual Standard_Boolean IsDisplayed() const
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{
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return !myCStructure.IsNull()
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&& myCStructure->stick != 0;
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}
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//! Returns Standard_True if the structure <me> is empty.
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//! Warning: A structure is empty if :
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//! it do not have group or all the groups are empties
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//! and it do not have descendant or all the descendants
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//! are empties.
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Standard_EXPORT Standard_Boolean IsEmpty() const;
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//! Returns Standard_True if the structure <me> is infinite.
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Standard_Boolean IsInfinite() const
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{
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return IsDeleted()
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|| myCStructure->IsInfinite;
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}
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//! Returns the highlight indicator for this structure.
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virtual Standard_Boolean IsHighlighted() const
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{
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return !myCStructure.IsNull()
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&& myCStructure->highlight != 0;
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}
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//! Returns TRUE if the structure is transformed.
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Standard_Boolean IsTransformed() const
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{
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return !myCStructure.IsNull()
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&& !myCStructure->Transformation().IsNull()
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&& myCStructure->Transformation()->Form() != gp_Identity;
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}
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//! Returns the visibility indicator for this structure.
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Standard_Boolean IsVisible() const
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{
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return !myCStructure.IsNull()
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&& myCStructure->visible != 0;
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}
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//! Returns the coordinates of the boundary box of the structure <me>.
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//! If <theToIgnoreInfiniteFlag> is TRUE, the method returns actual graphical
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//! boundaries of the Graphic3d_Group components. Otherwise, the
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//! method returns boundaries taking into account infinite state
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//! of the structure. This approach generally used for application
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//! specific fit operation (e.g. fitting the model into screen,
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//! not taking into account infinite helper elements).
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//! Warning: If the structure <me> is empty then the empty box is returned,
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//! If the structure <me> is infinite then the whole box is returned.
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Standard_EXPORT Bnd_Box MinMaxValues (const Standard_Boolean theToIgnoreInfiniteFlag = Standard_False) const;
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//! Returns the visualisation mode for the structure <me>.
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Graphic3d_TypeOfStructure Visual() const { return myVisual; }
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//! Returns Standard_True if the connection is possible between
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//! <AStructure1> and <AStructure2> without a creation
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//! of a cycle.
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//!
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//! It's not possible to call the method
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//! AStructure1->Connect (AStructure2, TypeOfConnection)
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//! if
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//! - the set of all ancestors of <AStructure1> contains
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//! <AStructure1> and if the
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//! TypeOfConnection == TOC_DESCENDANT
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//! - the set of all descendants of <AStructure1> contains
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//! <AStructure2> and if the
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//! TypeOfConnection == TOC_ANCESTOR
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Standard_EXPORT static Standard_Boolean AcceptConnection (Graphic3d_Structure* theStructure1,
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Graphic3d_Structure* theStructure2,
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Graphic3d_TypeOfConnection theType);
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//! Returns the group of structures to which <me> is connected.
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Standard_EXPORT void Ancestors (Graphic3d_MapOfStructure& SG) const;
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//! If Atype is TOC_DESCENDANT then add <AStructure>
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//! as a child structure of <me>.
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//! If Atype is TOC_ANCESTOR then add <AStructure>
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//! as a parent structure of <me>.
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//! The connection propagates Display, Highlight, Erase,
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//! Remove, and stacks the transformations.
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//! No connection if the graph of the structures
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//! contains a cycle and <WithCheck> is Standard_True;
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Standard_EXPORT void Connect (Graphic3d_Structure* theStructure,
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Graphic3d_TypeOfConnection theType,
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Standard_Boolean theWithCheck = Standard_False);
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Standard_DEPRECATED("Deprecated short-cut")
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void Connect (const Handle(Graphic3d_Structure)& thePrs)
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{
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Connect (thePrs.get(), Graphic3d_TOC_DESCENDANT);
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}
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//! Returns the group of structures connected to <me>.
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Standard_EXPORT void Descendants (Graphic3d_MapOfStructure& SG) const;
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//! Suppress the connection between <AStructure> and <me>.
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Standard_EXPORT void Disconnect (Graphic3d_Structure* theStructure);
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Standard_DEPRECATED("Deprecated alias for Disconnect()")
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void Remove (const Handle(Graphic3d_Structure)& thePrs) { Disconnect (thePrs.get()); }
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//! If Atype is TOC_DESCENDANT then suppress all
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//! the connections with the child structures of <me>.
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//! If Atype is TOC_ANCESTOR then suppress all
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//! the connections with the parent structures of <me>.
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Standard_EXPORT void DisconnectAll (const Graphic3d_TypeOfConnection AType);
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Standard_DEPRECATED("Deprecated alias for DisconnectAll()")
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void RemoveAll() { DisconnectAll (Graphic3d_TOC_DESCENDANT); }
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//! Returns <ASet> the group of structures :
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//! - directly or indirectly connected to <AStructure> if the
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//! TypeOfConnection == TOC_DESCENDANT
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//! - to which <AStructure> is directly or indirectly connected
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//! if the TypeOfConnection == TOC_ANCESTOR
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Standard_EXPORT static void Network (Graphic3d_Structure* theStructure,
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const Graphic3d_TypeOfConnection theType,
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NCollection_Map<Graphic3d_Structure*>& theSet);
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void SetOwner (const Standard_Address theOwner) { myOwner = theOwner; }
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Standard_Address Owner() const { return myOwner; }
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void SetHLRValidation (const Standard_Boolean theFlag)
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{
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if (!myCStructure.IsNull()) { myCStructure->HLRValidation = theFlag ? 1 : 0; }
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}
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//! Hidden parts stored in this structure are valid if:
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//! 1) the owner is defined.
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//! 2) they are not invalid.
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Standard_Boolean HLRValidation() const
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{
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return myOwner != NULL
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&& myCStructure->HLRValidation != 0;
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}
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//! Return local transformation.
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const Handle(TopLoc_Datum3D)& Transformation() const { return myCStructure->Transformation(); }
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//! Modifies the current local transformation
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Standard_EXPORT void SetTransformation (const Handle(TopLoc_Datum3D)& theTrsf);
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//! Modifies the current transform persistence (pan, zoom or rotate)
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Standard_EXPORT void SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers);
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//! @return transform persistence of the presentable object.
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const Handle(Graphic3d_TransformPers)& TransformPersistence() const { return myCStructure->TransformPersistence(); }
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//! Sets if the structure location has mutable nature (content or location will be changed regularly).
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void SetMutable (const Standard_Boolean theIsMutable)
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{
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if (!myCStructure.IsNull()) { myCStructure->IsMutable = theIsMutable; }
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}
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//! Returns true if structure has mutable nature (content or location are be changed regularly).
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//! Mutable structure will be managed in different way than static ones.
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Standard_Boolean IsMutable() const
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{
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return !myCStructure.IsNull()
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&& myCStructure->IsMutable;
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}
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Graphic3d_TypeOfStructure ComputeVisual() const { return myComputeVisual; }
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//! Clears the structure <me>.
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Standard_EXPORT void GraphicClear (const Standard_Boolean WithDestruction);
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void GraphicConnect (const Handle(Graphic3d_Structure)& theDaughter)
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{
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if (!myCStructure.IsNull()) { myCStructure->Connect (*theDaughter->myCStructure); }
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}
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void GraphicDisconnect (const Handle(Graphic3d_Structure)& theDaughter)
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{
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if (!myCStructure.IsNull()) { myCStructure->Disconnect (*theDaughter->myCStructure); }
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}
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//! Internal method which sets new transformation without calling graphic manager callbacks.
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void GraphicTransform (const Handle(TopLoc_Datum3D)& theTrsf)
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{
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if (!myCStructure.IsNull()) { myCStructure->SetTransformation (theTrsf); }
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}
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//! Returns the identification number of this structure.
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Standard_Integer Identification() const { return myCStructure->Identification(); }
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//! Prints information about the network associated
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//! with the structure <AStructure>.
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Standard_EXPORT static void PrintNetwork (const Handle(Graphic3d_Structure)& AStructure, const Graphic3d_TypeOfConnection AType);
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//! Suppress the structure in the list of descendants or in the list of ancestors.
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Standard_EXPORT void Remove (Graphic3d_Structure* thePtr,
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const Graphic3d_TypeOfConnection theType);
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void SetComputeVisual (const Graphic3d_TypeOfStructure theVisual)
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{
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// The ComputeVisual is saved only if the structure is declared TOS_ALL, TOS_WIREFRAME or TOS_SHADING.
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// This declaration permits to calculate proper representation of the structure calculated by Compute instead of passage to TOS_COMPUTED.
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if (theVisual != Graphic3d_TOS_COMPUTED)
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{
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myComputeVisual = theVisual;
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}
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}
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//! Transforms theX, theY, theZ with the transformation theTrsf.
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Standard_EXPORT static void Transforms (const gp_Trsf& theTrsf,
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const Standard_Real theX, const Standard_Real theY, const Standard_Real theZ,
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Standard_Real& theNewX, Standard_Real& theNewY, Standard_Real& theNewZ);
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//! Returns the low-level structure
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const Handle(Graphic3d_CStructure)& CStructure() const { return myCStructure; }
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//! Dumps the content of me into the stream
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Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
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protected:
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//! Transforms boundaries with <theTrsf> transformation.
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Standard_EXPORT static void TransformBoundaries (const gp_Trsf& theTrsf,
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Standard_Real& theXMin, Standard_Real& theYMin, Standard_Real& theZMin,
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Standard_Real& theXMax, Standard_Real& theYMax, Standard_Real& theZMax);
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//! Appends new descendant structure.
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Standard_EXPORT Standard_Boolean AppendDescendant (Graphic3d_Structure* theDescendant);
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//! Removes the given descendant structure.
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Standard_EXPORT Standard_Boolean RemoveDescendant (Graphic3d_Structure* theDescendant);
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//! Appends new ancestor structure.
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Standard_EXPORT Standard_Boolean AppendAncestor (Graphic3d_Structure* theAncestor);
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//! Removes the given ancestor structure.
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Standard_EXPORT Standard_Boolean RemoveAncestor (Graphic3d_Structure* theAncestor);
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//! Clears all the groups of primitives in the structure.
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Standard_EXPORT void clear (const Standard_Boolean WithDestruction);
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//! Erases this structure in all the views of the visualiser.
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Standard_EXPORT void erase();
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private:
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//! Suppress in the structure <me>, the group theGroup.
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//! It will be erased at the next screen update.
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Standard_EXPORT void Remove (const Handle(Graphic3d_Group)& theGroup);
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//! Returns the extreme coordinates found in the structure <me> without transformation applied.
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Standard_EXPORT Graphic3d_BndBox4f minMaxCoord() const;
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//! Gets untransformed bounding box from structure.
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Standard_EXPORT void getBox (Graphic3d_BndBox3d& theBox, const Standard_Boolean theToIgnoreInfiniteFlag = Standard_False) const;
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//! Adds transformed (with myCStructure->Transformation) bounding box of structure to theBox.
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Standard_EXPORT void addTransformed (Graphic3d_BndBox3d& theBox, const Standard_Boolean theToIgnoreInfiniteFlag = Standard_False) const;
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//! Returns the manager to which <me> is associated.
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Standard_EXPORT Handle(Graphic3d_StructureManager) StructureManager() const;
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//! Calls the Update method of the StructureManager which contains the Structure <me>.
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//! If theUpdateLayer is true then invalidates bounding box of ZLayer.
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Standard_EXPORT void Update (const bool theUpdateLayer = false) const;
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protected:
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Graphic3d_StructureManager* myStructureManager;
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Handle(Graphic3d_CStructure) myCStructure;
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NCollection_IndexedMap<Graphic3d_Structure*> myAncestors;
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NCollection_IndexedMap<Graphic3d_Structure*> myDescendants;
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Standard_Address myOwner;
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Graphic3d_TypeOfStructure myVisual;
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Graphic3d_TypeOfStructure myComputeVisual;
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};
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#endif // _Graphic3d_Structure_HeaderFile
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