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1a0339b464
1. The class Bnd_OBB has been created to describe the Oriented Bounding Box. 2. Several key methods have been implemented: Bnd_OBB::IsOut(...), Bnd_OBB::Add(...) and Bnd_OBB::Enlarge(...). 3. Interface of Bnd_Box class has changed. New methods have been created. See Bnd_Box.hxx for detailed information. 4. BRepBndLib and Draw_Box classes have been amended in order to provide correct work with Bnd_OBB class. 5. Interface of "bounding" DRAW-command has been changed. Please see help for detailed information. 6. New DRAW-command "isbbinterf" has been created. Please see help for detailed information. 7. "boundingstr" and "optbounding" DRAW-commands have been eliminated because their function can be made by "bounding" DRAW-command (e.g. see tests/bugs/vis/buc60857 or samples/tcl/snowflake.tcl test cases). 8. Documentation has been updated.
135 lines
4.0 KiB
C++
135 lines
4.0 KiB
C++
// Created on: 1995-03-10
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// Created by: Remi LEQUETTE
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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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#include <Draw_Box.hxx>
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#include <Draw_Color.hxx>
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#include <Draw_Display.hxx>
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#include <gp_Pnt.hxx>
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#include <Standard_Type.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(Draw_Box,Draw_Drawable3D)
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//=======================================================================
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//function : Constructor
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//purpose :
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//=======================================================================
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Draw_Box::Draw_Box(const Bnd_OBB& theOBB,
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const Draw_Color& theColor) :myOBB(theOBB), myColor(theColor)
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{
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}
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//=======================================================================
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//function : ToWCS
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//purpose :
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//=======================================================================
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void Draw_Box::ToWCS(const Standard_Real theX,
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const Standard_Real theY,
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const Standard_Real theZ,
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gp_Pnt& theP) const
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{
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const gp_XYZ & aC = myOBB.Center();
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const gp_XYZ aXDir = myOBB.XDirection(),
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aYDir = myOBB.YDirection(),
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aZDir = myOBB.ZDirection();
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theP.SetXYZ(aC + theX*aXDir + theY*aYDir + theZ*aZDir);
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}
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//=======================================================================
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//function : MoveX
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//purpose :
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//=======================================================================
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void Draw_Box::MoveX(const Standard_Real theShift, gp_Pnt& thePt) const
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{
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const gp_XYZ aXDir = myOBB.XDirection();
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thePt.SetXYZ(thePt.XYZ() + theShift*aXDir);
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}
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//=======================================================================
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//function : MoveY
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//purpose :
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//=======================================================================
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void Draw_Box::MoveY(const Standard_Real theShift, gp_Pnt& thePt) const
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{
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const gp_XYZ aYDir = myOBB.YDirection();
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thePt.SetXYZ(thePt.XYZ() + theShift*aYDir);
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}
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//=======================================================================
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//function : MoveZ
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//purpose :
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//=======================================================================
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void Draw_Box::MoveZ(const Standard_Real theShift, gp_Pnt& thePt) const
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{
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const gp_XYZ aZDir = myOBB.ZDirection();
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thePt.SetXYZ(thePt.XYZ() + theShift*aZDir);
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}
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//=======================================================================
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//function : DrawOn
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//purpose :
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//=======================================================================
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void Draw_Box::DrawOn(Draw_Display& theDIS) const
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{
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if(myOBB.IsVoid())
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{
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return;
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}
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theDIS.SetColor(myColor);
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const Standard_Real aHx = myOBB.XHSize(),
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aHy = myOBB.YHSize(),
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aHz = myOBB.ZHSize();
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gp_Pnt aP;
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ToWCS(-aHx, -aHy, -aHz, aP);
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theDIS.MoveTo(aP);
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for(Standard_Integer i = 0; i<2; i++)
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{
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MoveX(2.0*aHx, aP);
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theDIS.DrawTo(aP);
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MoveY(2.0*aHy, aP);
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theDIS.DrawTo(aP);
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MoveX(-2.0*aHx, aP);
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theDIS.DrawTo(aP);
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MoveY(-2.0*aHy, aP);
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theDIS.DrawTo(aP);
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ToWCS(-aHx, -aHy, aHz, aP);
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theDIS.MoveTo(aP);
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}
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for(Standard_Integer i = 0; i < 4; i++)
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{
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switch(i)
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{
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case 0: ToWCS(-aHx, -aHy, -aHz, aP); break;
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case 1: ToWCS(aHx, -aHy, -aHz, aP); break;
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case 2: ToWCS(aHx, aHy, -aHz, aP); break;
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case 3: ToWCS(-aHx, aHy, -aHz, aP); break;
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default: break;
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}
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theDIS.MoveTo(aP);
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MoveZ(2.0*aHz, aP);
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theDIS.DrawTo(aP);
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}
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}
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