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f751596e46
Redesign of selection mechanism: - implemented 3-level BVH tree for selection; - selection now calculates in 3D space; - intersection tests were moved to SelectMgr_BaseFrustum descendants; - removed .cdl files in Select3D and .cdl related to selection in MeshVS; - SelectMgr_ViewerSelectors are now shared between local and global contexts; - transformations of sensitive entities are now stored in SelectMgr_SelectableObject only. Sensitive entities are independent from transformations, it is applied to SelectMgr_SelectingVolumeManager instance only; - connected and multiple connected interactive objects are now represented by their child objects only for SelectMgr_SelectionManager; - if interactive object has child objects, they will be stored as separate objects in SelectMgr_SelectionManager now. - test cases bugs/vis/bug24623_1, bug24623_2, bug24623_3, bug24623_4 to test performance and memory issues.
106 lines
4.5 KiB
C++
106 lines
4.5 KiB
C++
// Created on: 1996-10-17
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// Created by: Odile OLIVIER
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// Copyright (c) 1996-1999 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 _Select3D_SensitiveWire_HeaderFile
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#define _Select3D_SensitiveWire_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineHandle.hxx>
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#include <Standard_Type.hxx>
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#include <Select3D_SensitiveSet.hxx>
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#include <Handle_SelectBasics_EntityOwner.hxx>
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#include <Standard_OStream.hxx>
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#include <NCollection_Sequence.hxx>
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class SelectBasics_EntityOwner;
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class TopLoc_Location;
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class Select3D_SensitiveEntitySequence;
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//! A framework to define selection of a wire owner by an
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//! elastic wire band.
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class Select3D_SensitiveWire : public Select3D_SensitiveSet
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{
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public:
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//! Constructs a sensitive wire object defined by the
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//! owner theOwnerId
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Standard_EXPORT Select3D_SensitiveWire (const Handle(SelectBasics_EntityOwner)& theOwnerId);
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//! Adds the sensitive entity theSensitive to this framework.
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Standard_EXPORT void Add (const Handle(Select3D_SensitiveEntity)& theSensitive);
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//! Returns the amount of sub-entities
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Standard_EXPORT virtual Standard_Integer NbSubElements() Standard_OVERRIDE;
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Standard_EXPORT virtual Handle(Select3D_SensitiveEntity) GetConnected() Standard_OVERRIDE;
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//! returns the sensitive edges stored in this wire
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Standard_EXPORT const NCollection_Vector<Handle(Select3D_SensitiveEntity)>& GetEdges();
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//! Sets the owner for all entities in wire
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Standard_EXPORT void Set (const Handle(SelectBasics_EntityOwner)& theOwnerId);
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Standard_EXPORT Handle_Select3D_SensitiveEntity GetLastDetected() const;
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//! Returns bounding box of the wire. If location
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//! transformation is set, it will be applied
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Standard_EXPORT virtual Select3D_BndBox3d BoundingBox() Standard_OVERRIDE;
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//! Returns center of the wire. If location transformation
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//! is set, it will be applied
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Standard_EXPORT virtual gp_Pnt CenterOfGeometry() const Standard_OVERRIDE;
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//! Returns the length of vector of sensitive entities
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Standard_EXPORT virtual Standard_Integer Size() const Standard_OVERRIDE;
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//! Returns bounding box of sensitive entity with index theIdx
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Standard_EXPORT virtual Select3D_BndBox3d Box (const Standard_Integer theIdx) const Standard_OVERRIDE;
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//! Returns geometry center of sensitive entity index theIdx in
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//! the vector along the given axis theAxis
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Standard_EXPORT virtual Standard_Real Center (const Standard_Integer theIdx,
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const Standard_Integer theAxis) const Standard_OVERRIDE;
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//! Swaps items with indexes theIdx1 and theIdx2 in the vector
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Standard_EXPORT virtual void Swap (const Standard_Integer theIdx1,
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const Standard_Integer theIdx2) Standard_OVERRIDE;
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DEFINE_STANDARD_RTTI(Select3D_SensitiveWire)
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protected:
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//! Checks whether the entity with index theIdx overlaps the current selecting volume
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Standard_EXPORT virtual Standard_Boolean overlapsElement (SelectBasics_SelectingVolumeManager& theMgr,
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Standard_Integer theElemIdx,
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Standard_Real& theMatchDepth) Standard_OVERRIDE;
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//! Calculates distance from the 3d projection of used-picked screen point to center of the geometry
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Standard_EXPORT virtual Standard_Real distanceToCOG (SelectBasics_SelectingVolumeManager& theMgr) Standard_OVERRIDE;
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private:
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NCollection_Vector<Handle(Select3D_SensitiveEntity)> myEntities; //!< Vector of sub-entities
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NCollection_Vector<Standard_Integer> myEntityIndexes; //!< Indexes of entities for BVH build
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gp_Pnt myCenter; //!< Center of the whole wire
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mutable Select3D_BndBox3d myBndBox; //!< Bounding box of the whole wire
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};
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DEFINE_STANDARD_HANDLE(Select3D_SensitiveWire, Select3D_SensitiveEntity)
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#endif // _Select3D_SensitiveWire_HeaderFile
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