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165 lines
4.4 KiB
C++
Executable File
165 lines
4.4 KiB
C++
Executable File
// Copyright: Matra-Datavision 1995
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// File: Select3D_SensitivePoint.cxx
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// Created: Fri Mar 10 13:41:23 1995
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// Author: Mister rmi
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// <rmi>
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#include <Select3D_SensitivePoint.ixx>
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#include <Select3D_Projector.hxx>
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#include <Bnd_Box2d.hxx>
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#include <ElCLib.hxx>
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#include <CSLib_Class2d.hxx>
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//==================================================
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// Function:
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// Purpose :
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//==================================================
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Select3D_SensitivePoint
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::Select3D_SensitivePoint(const Handle(SelectBasics_EntityOwner)& anOwner,
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const gp_Pnt& aPoint):
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Select3D_SensitiveEntity(anOwner)
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{
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SetSensitivityFactor(4.);
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mypoint = aPoint;
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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_SensitivePoint
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::Project (const Select3D_Projector& aProj)
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{
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Select3D_SensitiveEntity::Project(aProj); // to set the field last proj...
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gp_Pnt2d aPoint2d;
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if(!HasLocation())
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aProj.Project(mypoint, aPoint2d);
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else{
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gp_Pnt aP(mypoint.x, mypoint.y, mypoint.z);
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aProj.Project(aP.Transformed(Location().Transformation()), aPoint2d);
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}
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myprojpt = aPoint2d;
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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_SensitivePoint
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::Areas(SelectBasics_ListOfBox2d& boxes)
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{
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Bnd_Box2d abox;
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abox.Set(myprojpt);
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boxes.Append(abox);
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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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Standard_Boolean Select3D_SensitivePoint
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::Matches(const Standard_Real X,
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const Standard_Real Y,
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const Standard_Real aTol,
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Standard_Real& DMin)
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{
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DMin = gp_Pnt2d(X,Y).Distance(myprojpt);
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if(DMin<=aTol*SensitivityFactor()) {
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Select3D_SensitiveEntity::Matches(X,Y,aTol,DMin);
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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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Standard_Boolean Select3D_SensitivePoint::
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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 B;
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B.Update(Min(XMin,XMax),Min(YMin,YMax),Max(XMin,XMax),Max(YMin,YMax));
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B.Enlarge(aTol);
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return !B.IsOut(myprojpt);
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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_SensitivePoint::
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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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Standard_Real Tolu,Tolv;
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Tolu = 1e-7;
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Tolv = 1e-7;
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CSLib_Class2d aClassifier2d(aPoly,aTol,aTol,Umin,Vmin,Umax,Vmax);
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Standard_Integer RES = aClassifier2d.SiDans(myprojpt);
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if(RES==1) return Standard_True;
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return Standard_False;
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}
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//=======================================================================
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//function : Point
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//purpose :
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//=======================================================================
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gp_Pnt Select3D_SensitivePoint::Point() const
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{return mypoint;}
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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_SensitivePoint::GetConnected(const TopLoc_Location& aLoc)
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{
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Handle(Select3D_SensitivePoint) NiouEnt = new Select3D_SensitivePoint(myOwnerId,mypoint);
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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_SensitivePoint::Dump(Standard_OStream& S,const Standard_Boolean FullDump) const
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{
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S<<"\tSensitivePoint 3D :";
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if(HasLocation())
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S<<"\t\tExisting Location"<<endl;
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S<<"\t\t P3d [ "<<mypoint.x<<" , "<<mypoint.y<<" , "<<mypoint.z<<" ]"<<endl;
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S<<"\t\t P2d [ "<<myprojpt.x<<" , "<<myprojpt.y<<" ]"<<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_SensitivePoint::ComputeDepth(const gp_Lin& EyeLine) const
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{
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return ElCLib::Parameter(EyeLine,mypoint);
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}
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