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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.
120 lines
4.6 KiB
C++
120 lines
4.6 KiB
C++
// Created on: 1997-05-14
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// Created by: Robert COUBLANC
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// Copyright (c) 1997-1999 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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#include <Select3D_SensitiveTriangle.hxx>
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#include <gp_Pnt.hxx>
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#include <Precision.hxx>
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#include <Bnd_Box.hxx>
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#include <TopLoc_Location.hxx>
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//==================================================
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// Function: Creation
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// Purpose :
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//==================================================
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Select3D_SensitiveTriangle::Select3D_SensitiveTriangle (const Handle(SelectBasics_EntityOwner)& theOwnerId,
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const gp_Pnt& thePnt0,
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const gp_Pnt& thePnt1,
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const gp_Pnt& thePnt2,
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const Select3D_TypeOfSensitivity theType)
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: Select3D_SensitiveEntity (theOwnerId),
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mySensType (theType)
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{
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myPoints[0] = thePnt0;
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myPoints[1] = thePnt1;
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myPoints[2] = thePnt2;
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myCentroid = (thePnt0.XYZ() + thePnt1.XYZ() + thePnt2.XYZ()) * (1.0 / 3.0);
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}
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//==================================================
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// Function: Matches
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// Purpose : Checks whether the triangle overlaps
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// current selecting volume
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//==================================================
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Standard_Boolean Select3D_SensitiveTriangle::Matches (SelectBasics_SelectingVolumeManager& theMgr,
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SelectBasics_PickResult& thePickResult)
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{
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Standard_Real aDepth = RealLast();
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Standard_Real aDistToCOG = RealLast();
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if (!theMgr.IsOverlapAllowed())
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{
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return theMgr.Overlaps (myPoints[0])
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&& theMgr.Overlaps (myPoints[1])
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&& theMgr.Overlaps (myPoints[2]);
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}
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if (!theMgr.Overlaps (myPoints[0], myPoints[1], myPoints[2], mySensType, aDepth))
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{
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thePickResult = SelectBasics_PickResult (aDepth, aDistToCOG);
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return Standard_False;
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}
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aDistToCOG = theMgr.DistToGeometryCenter (myCentroid);
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thePickResult = SelectBasics_PickResult (aDepth, aDistToCOG);
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return Standard_True;
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}
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//==================================================
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// Function: Points3D
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// Purpose :
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//==================================================
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void Select3D_SensitiveTriangle::Points3D (gp_Pnt& thePnt0, gp_Pnt& thePnt1, gp_Pnt& thePnt2) const
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{
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thePnt0 = myPoints[0];
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thePnt1 = myPoints[1];
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thePnt2 = myPoints[2];
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}
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//==================================================
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// Function: Center3D
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// Purpose :
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//==================================================
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gp_Pnt Select3D_SensitiveTriangle::Center3D() const
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{
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return myCentroid;
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}
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//==================================================
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// Function: GetConnected
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// Purpose :
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//==================================================
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Handle(Select3D_SensitiveEntity) Select3D_SensitiveTriangle::GetConnected()
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{
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// Create a copy of this
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Handle(Select3D_SensitiveEntity) aNewEntity =
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new Select3D_SensitiveTriangle (myOwnerId, myPoints[0], myPoints[1], myPoints[2], mySensType);
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return aNewEntity;
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}
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//==================================================
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// Function: BoundingBox
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// Purpose : Returns bounding box of the triangle.
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// If location transformation is set, it
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// will be applied
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//==================================================
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Select3D_BndBox3d Select3D_SensitiveTriangle::BoundingBox()
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{
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const SelectMgr_Vec3 aMinPnt = SelectMgr_Vec3 (Min (myPoints[0].X(), Min (myPoints[1].X(), myPoints[2].X())),
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Min (myPoints[0].Y(), Min (myPoints[1].Y(), myPoints[2].Y())),
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Min (myPoints[0].Z(), Min (myPoints[1].Z(), myPoints[2].Z())));
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const SelectMgr_Vec3 aMaxPnt = SelectMgr_Vec3 (Max (myPoints[0].X(), Max (myPoints[1].X(), myPoints[2].X())),
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Max (myPoints[0].Y(), Max (myPoints[1].Y(), myPoints[2].Y())),
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Max (myPoints[0].Z(), Max (myPoints[1].Z(), myPoints[2].Z())));
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return Select3D_BndBox3d (aMinPnt, aMaxPnt);
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}
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