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f5b7241978
Several methods in Selection classes have been moved to header files for better inlining. BVH_Constants - added new enumeration defining common constant values used with BVH trees. BVH - replaced NCollection_Handle with Standard_Transient handle in classes BVH_Properties, BVH_Builder, BVH_Tree, BVH_Object. Defined global BVH-builders instead of allocating a new one for each object set. SelectMgr_ViewerSelector - added new method ::SetEntitySetBuilder() defining default BVH Tree builder for SelectMgr_SensitiveEntitySet. Added new method SelectMgr_SensitiveEntitySet::SetBuilder() for overriding default BVH tree builder.
95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
// Created on: 1995-01-23
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// Created by: Mister rmi
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// Copyright (c) 1995-1999 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 _SelectBasics_SensitiveEntity_HeaderFile
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#define _SelectBasics_SensitiveEntity_HeaderFile
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#include <gp_GTrsf.hxx>
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#include <gp_Trsf.hxx>
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#include <Standard_Transient.hxx>
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#include <SelectBasics_SelectingVolumeManager.hxx>
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#include <SelectBasics_PickResult.hxx>
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#include <Select3D_BndBox3d.hxx>
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class SelectBasics_EntityOwner;
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//! root class; the inheriting classes will be able to give
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//! sensitive Areas for the dynamic selection algorithms
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class SelectBasics_SensitiveEntity : public Standard_Transient
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{
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DEFINE_STANDARD_RTTIEXT(SelectBasics_SensitiveEntity, Standard_Transient)
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public:
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//! Sets owner of the entity
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Standard_EXPORT virtual void Set (const Handle(SelectBasics_EntityOwner)& theOwnerId);
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//! Returns pointer to owner of the entity
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const Handle(SelectBasics_EntityOwner)& OwnerId() const { return myOwnerId; }
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//! Checks whether the sensitive entity is overlapped by
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//! current selecting volume
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virtual Standard_Boolean Matches (SelectBasics_SelectingVolumeManager& theMgr, SelectBasics_PickResult& thePickResult) = 0;
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//! allows a better sensitivity for
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//! a specific entity in selection algorithms
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//! useful for small sized entities.
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Standard_Integer SensitivityFactor() const { return mySFactor; }
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//! Allows to manage sensitivity of a particular sensitive entity
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void SetSensitivityFactor (const Standard_Integer theNewSens)
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{
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Standard_ASSERT_RAISE (theNewSens > 0, "Error! Selection sensitivity have positive value.");
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mySFactor = theNewSens;
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}
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//! Returns the number of sub-entities or elements in
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//! sensitive entity. Is used to determine if entity is
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//! complex and needs to pre-build BVH at the creation of
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//! sensitive entity step or is light-weighted so the tree
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//! can be build on demand with unnoticeable delay
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virtual Standard_Integer NbSubElements() = 0;
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//! Returns bounding box of sensitive entity
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virtual Select3D_BndBox3d BoundingBox() = 0;
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//! Builds BVH tree for sensitive if it is needed
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virtual void BVH() = 0;
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//! Clears up all the resources and memory allocated
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virtual void Clear() = 0;
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//! Returns true if the shape corresponding to the entity has init location
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virtual Standard_Boolean HasInitLocation() const = 0;
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//! Returns inversed location transformation matrix if the shape corresponding
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//! to this entity has init location set. Otherwise, returns identity matrix.
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virtual gp_GTrsf InvInitLocation() const = 0;
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protected:
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Standard_EXPORT SelectBasics_SensitiveEntity (const Handle(SelectBasics_EntityOwner)& theOwnerId);
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protected:
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Handle(SelectBasics_EntityOwner) myOwnerId;
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Standard_Integer mySFactor;
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};
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DEFINE_STANDARD_HANDLE(SelectBasics_SensitiveEntity, Standard_Transient)
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#endif // _SelectBasics_SensitiveEntity_HeaderFile
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