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https://git.dev.opencascade.org/repos/occt.git
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3bf9a45f7a
- initial transformation of triangulation is now applied to selecting frustum; - switched from NCollection_Vec3 to gp collections to avoid conversions and usage of macros; - calculation of frustum was refactored to reduce its build time; - double pixel tolerances for selection were replaced by integer ones; - switched to splitting along the main axis only in SelectMgr BVH selection primitive sets.
123 lines
4.4 KiB
C++
123 lines
4.4 KiB
C++
// Created on: 2014-08-15
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// Created by: Varvara POSKONINA
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// Copyright (c) 2005-2014 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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#include <Bnd_Box.hxx>
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#include <BVH_BinnedBuilder.hxx>
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#include <SelectMgr_SelectableObjectSet.hxx>
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//=======================================================================
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// function : SelectMgr_SelectableObjectSet
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// purpose : Creates new empty objects set and initializes BVH tree
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// builder to Binned builder with 1 element per list
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//=======================================================================
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SelectMgr_SelectableObjectSet::SelectMgr_SelectableObjectSet()
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{
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myBuilder = new BVH_BinnedBuilder<Standard_Real, 3, 4> (1, 32, Standard_True);
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}
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//=======================================================================
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// function : Append
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// purpose : Adds new object to the set and marks BVH tree for rebuild
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//=======================================================================
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Standard_Boolean SelectMgr_SelectableObjectSet::Append (const Handle(SelectMgr_SelectableObject)& theObject)
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{
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Standard_Integer aSize = Size();
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if (aSize < myObjects.Add (theObject))
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{
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MarkDirty();
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return Standard_True;
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}
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return Standard_False;
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}
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//=======================================================================
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// function : Remove
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// purpose : Removes object theObject from set and marks BVH tree for
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// rebuild
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//=======================================================================
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Standard_Boolean SelectMgr_SelectableObjectSet::Remove (const Handle(SelectMgr_SelectableObject)& theObject)
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{
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const Standard_Integer anIndex = myObjects.FindIndex (theObject);
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if (anIndex != 0)
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{
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if (anIndex != Size())
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{
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Swap (anIndex - 1, Size() - 1);
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}
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myObjects.RemoveLast();
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MarkDirty();
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return Standard_True;
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}
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return Standard_False;
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}
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//=======================================================================
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// function : Box
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// purpose : Returns bounding box of object with index theIndex
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//=======================================================================
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Select3D_BndBox3d SelectMgr_SelectableObjectSet::Box (const Standard_Integer theIndex) const
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{
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const Handle(SelectMgr_SelectableObject)& anObject = GetObjectById (theIndex);
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Bnd_Box aBox;
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anObject->BoundingBox (aBox);
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if (aBox.IsVoid())
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return Select3D_BndBox3d();
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return Select3D_BndBox3d (SelectMgr_Vec3 (aBox.CornerMin().X(), aBox.CornerMin().Y(), aBox.CornerMin().Z()),
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SelectMgr_Vec3 (aBox.CornerMax().X(), aBox.CornerMax().Y(), aBox.CornerMax().Z()));
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}
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//=======================================================================
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// function : Center
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// purpose : Returns center of object with index theIndex in the set
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// along the given axis theAxis
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//=======================================================================
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Standard_Real SelectMgr_SelectableObjectSet::Center (const Standard_Integer theIndex,
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const Standard_Integer theAxis) const
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{
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Select3D_BndBox3d aBndBox = Box (theIndex);
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return (aBndBox.CornerMin()[theAxis] +
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aBndBox.CornerMax()[theAxis]) * 0.5;
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}
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//=======================================================================
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// function : Swap
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// purpose : Swaps items with indexes theIndex1 and theIndex2 in the set
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//=======================================================================
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void SelectMgr_SelectableObjectSet::Swap (const Standard_Integer theIndex1,
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const Standard_Integer theIndex2)
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{
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myObjects.Swap (theIndex1 + 1, theIndex2 + 1);
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}
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//=======================================================================
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// function : Size
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// purpose : Returns size of objects set
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//=======================================================================
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Standard_Integer SelectMgr_SelectableObjectSet::Size() const
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{
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return myObjects.Size();
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}
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