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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
262 lines
8.2 KiB
C++
262 lines
8.2 KiB
C++
// Created on: 1995-01-25
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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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#include <Select3D_SensitiveSegment.ixx>
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#include <SelectBasics_BasicTool.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Vec2d.hxx>
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#include <Bnd_Box2d.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Dir2d.hxx>
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#include <gp_Lin2d.hxx>
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#include <ElCLib.hxx>
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#include <Extrema_ExtElC.hxx>
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#include <Extrema_POnCurv.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <Precision.hxx>
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#include <SelectBasics_ListIteratorOfListOfBox2d.hxx>
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#include <CSLib_Class2d.hxx>
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//=====================================================
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// Function : Create
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// Purpose :Constructor
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//=====================================================
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Select3D_SensitiveSegment::
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Select3D_SensitiveSegment(const Handle(SelectBasics_EntityOwner)& OwnerId,
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const gp_Pnt& FirstP,
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const gp_Pnt& LastP,
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const Standard_Integer MaxRect):
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Select3D_SensitiveEntity(OwnerId),
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mymaxrect(MaxRect)
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{
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mystart = FirstP;
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myend = LastP;
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}
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//=====================================================
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// Function :
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// Purpose :
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//=====================================================
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void Select3D_SensitiveSegment
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::Project(const Handle(Select3D_Projector)& aProj)
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{
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gp_Pnt2d aPoint2dStart;
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gp_Pnt2d aPoint2dEnd;
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if(HasLocation())
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{
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gp_Pnt aStart(mystart.x, mystart.y, mystart.z);
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gp_Pnt aEnd(myend.x, myend.y, myend.z);
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aProj->Project(aStart.Transformed(Location().Transformation()),aPoint2dStart);
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aProj->Project(aEnd.Transformed(Location().Transformation()),aPoint2dEnd);
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}
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else
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{
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aProj->Project(mystart,aPoint2dStart);
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aProj->Project(myend,aPoint2dEnd);
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}
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myprojstart = aPoint2dStart;
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myprojend = aPoint2dEnd;
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}
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//=====================================================
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// Function : Areas
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// Purpose :
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//=====================================================
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void Select3D_SensitiveSegment
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::Areas(SelectBasics_ListOfBox2d& theareas)
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{
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// gp_Dir2d dy (0.,1.);
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gp_Pnt2d aPStart(myprojstart.x,myprojstart.y);
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if(aPStart.Distance(myprojend)<=Precision::Confusion())
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{
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Bnd_Box2d curbox;
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curbox.Set(myprojstart);
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theareas.Append(curbox);
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}
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else
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{
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gp_Vec2d MyVec(myprojstart,myprojend);//,VAxx(gp_Dir2d(0.,1.));
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Standard_Real theangle = Abs(gp_Dir2d(0.,1.).Angle(gp_Vec2d(myprojstart,myprojend)));
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if(theangle>=M_PI/2.) theangle-=M_PI/2;
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if(theangle>=M_PI/12. && theangle <=5*M_PI/12.)
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{
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TColgp_Array1OfPnt2d BoxPoint (1,mymaxrect+1);
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BoxPoint (1) = myprojstart;
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BoxPoint(mymaxrect+1)=myprojend;
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gp_Vec2d Vtr = MyVec/mymaxrect;
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Standard_Integer i;
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for ( i=2;i<=mymaxrect;i++)
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{
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BoxPoint (i) = BoxPoint (i-1).Translated(Vtr);
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}
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for (i=2;i<=mymaxrect+1;i++)
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{
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Bnd_Box2d curbox;
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curbox.Set(BoxPoint(i-1));
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curbox.Add(BoxPoint(i));
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theareas.Append(curbox);
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}
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}
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else
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{
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Bnd_Box2d curbox;
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curbox.Set(myprojstart);
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curbox.Add(myprojend);
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theareas.Append(curbox);
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}
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}
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}
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//=====================================================
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// Function : Matches
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// Purpose :
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//=====================================================
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Standard_Boolean Select3D_SensitiveSegment::Matches (const SelectBasics_PickArgs& thePickArgs,
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Standard_Real& theMatchDMin,
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Standard_Real& theMatchDepth)
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{
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gp_Pnt2d aPStart (myprojstart.x,myprojstart.y);
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gp_Pnt2d aPEnd (myprojend.x,myprojend.y);
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if (!SelectBasics_BasicTool::MatchSegment (aPStart, aPEnd,
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thePickArgs.X(),
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thePickArgs.Y(),
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thePickArgs.Tolerance(),
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theMatchDMin))
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{
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return Standard_False;
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}
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theMatchDepth = ComputeDepth (thePickArgs.PickLine());
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return !thePickArgs.IsClipped (theMatchDepth);
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}
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//=====================================================
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// Function : Matches
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// Purpose :
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//=====================================================
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Standard_Boolean Select3D_SensitiveSegment::
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Matches (const Standard_Real XMin,
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const Standard_Real YMin,
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const Standard_Real XMax,
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const Standard_Real YMax,
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const Standard_Real aTol)
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{
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Bnd_Box2d BoundBox;
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BoundBox.Update(XMin-aTol,YMin-aTol,XMax+aTol,YMax+aTol);
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if(BoundBox.IsOut(myprojstart)) return Standard_False;
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if( BoundBox.IsOut(myprojend)) return Standard_False;
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return Standard_True;
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}
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//=======================================================================
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//function : Matches
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//purpose :
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//=======================================================================
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Standard_Boolean Select3D_SensitiveSegment::
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Matches (const TColgp_Array1OfPnt2d& aPoly,
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const Bnd_Box2d& aBox,
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const Standard_Real aTol)
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{
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Standard_Real Umin,Vmin,Umax,Vmax;
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aBox.Get(Umin,Vmin,Umax,Vmax);
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CSLib_Class2d aClassifier2d(aPoly,aTol,aTol,Umin,Vmin,Umax,Vmax);
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Standard_Integer RES = aClassifier2d.SiDans(myprojstart);
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if (RES!=1) return Standard_False;
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RES = aClassifier2d.SiDans(myprojend);
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if (RES!=1) return Standard_False;
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return Standard_True;
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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_SensitiveSegment::
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GetConnected(const TopLoc_Location& aLoc)
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{
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Handle(Select3D_SensitiveSegment) NiouEnt =
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new Select3D_SensitiveSegment(myOwnerId,mystart,myend,mymaxrect);
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if(HasLocation()) NiouEnt->SetLocation(Location());
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NiouEnt->UpdateLocation(aLoc);
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return NiouEnt;
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}
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//=======================================================================
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//function : Dump
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//purpose :
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//=======================================================================
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void Select3D_SensitiveSegment::Dump(Standard_OStream& S,const Standard_Boolean /*FullDump*/) const
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{
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S<<"\tSensitivePoint 3D :"<<endl;
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if(HasLocation())
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S<<"\t\tExisting Location"<<endl;
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S<<"\t\t P1 [ "<<mystart.x<<" , "<<mystart.y <<" , "<<mystart.z <<" ]"<<endl;
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S<<"\t\t P2 [ "<<myend.x<<" , "<<myend.y <<" , "<<myend.z <<" ]"<<endl;
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S<<"\t\t maxrect ="<<mymaxrect<<endl;
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}
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//=======================================================================
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//function : ComputeDepth
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//purpose :
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//=======================================================================
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Standard_Real Select3D_SensitiveSegment::ComputeDepth(const gp_Lin& EyeLine) const
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{
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gp_Pnt aP0 = mystart;
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gp_Pnt aP1 = myend;
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// if segment is degenerated (zero length), just use depth of the end
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gp_XYZ aV = aP1.XYZ() - aP0.XYZ();
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Standard_Real aNorm = aV.Modulus();
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if ( aNorm <= gp::Resolution() )
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return ElCLib::Parameter (EyeLine, aP0);
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// else compute point on segment closest to the line
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gp_Lin aLine (aP0, aV);
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Extrema_ExtElC aTool (aLine, EyeLine, Precision::Angular());
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if ( aTool.IsDone() && ! aTool.IsParallel() )
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{
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for (Standard_Integer i=1; i <= aTool.NbExt(); i++)
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{
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Extrema_POnCurv POL1, POL2;
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aTool.Points (i, POL1, POL2);
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// use point found by extrema only if it is inside segment
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if ( POL1.Parameter() > 0. && POL1.Parameter() < aNorm )
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return ElCLib::Parameter (EyeLine, POL1.Value());
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}
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}
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// if extrema failed or lines are parallel, return closest of the segment ends
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return Min (ElCLib::Parameter (EyeLine, aP0),
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ElCLib::Parameter (EyeLine, aP1));
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}
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