occt/src/Select3D/Select3D_SensitiveWire.cxx

// File:	Select3D_SensitiveWire.cxx
// Created:	Thu Oct 17 10:19:25 1996
// Author:	Odile OLIVIER
//		<odl@sacadox.paris1.matra-dtv.fr>
//Copyright:	 Matra Datavision 1996

#include <Select3D_SensitiveWire.ixx>
#include <SelectBasics_BasicTool.hxx>
#include <Select3D_SensitiveEntity.hxx>
#include <Select3D_SensitiveEntitySequence.hxx>
#include <SelectBasics_ListIteratorOfListOfBox2d.hxx>
#include <SelectBasics_ListOfBox2d.hxx>
#include <Precision.hxx>

#include <Bnd_Box2d.hxx>
#include <ElCLib.hxx>

//static Standard_Boolean debugmode=Standard_False;

//=====================================================
// Function : Create
// Purpose  :Constructor
//=====================================================


Select3D_SensitiveWire::
Select3D_SensitiveWire(const Handle(SelectBasics_EntityOwner)& OwnerId,
			  const Standard_Integer MaxRect):
Select3D_SensitiveEntity(OwnerId),
mymaxrect(MaxRect),
myDetectedIndex(-1)
{}

//=====================================================
// Function : Add
// Purpose  :
//=====================================================
void Select3D_SensitiveWire
::Add(const Handle(Select3D_SensitiveEntity)& aSensitive)
{
  if ( !aSensitive .IsNull()) {
    if(!HasLocation())
      mysensitive.Append(aSensitive);
    else
      mysensitive.Append(aSensitive->GetConnected(Location()));

  }
}

//=======================================================================
//function : SetLocation
//purpose  :
//=======================================================================

void Select3D_SensitiveWire::SetLocation(const TopLoc_Location& aLoc)
{

  // evitons les problemes...
  if(aLoc.IsIdentity()) return;

  if(HasLocation())
    if(aLoc == Location()) return;

  Select3D_SensitiveEntity::SetLocation(aLoc);
  for(Standard_Integer i=1;i<=mysensitive.Length();i++){
    if(mysensitive(i)->HasLocation()){
      if(mysensitive(i)->Location()!=aLoc)
	mysensitive(i)->SetLocation(mysensitive(i)->Location()*aLoc);
    }
    else
      mysensitive(i)->SetLocation(aLoc);

  }
}
//=======================================================================
//function : ResetLocation
//purpose  :
//=======================================================================

void Select3D_SensitiveWire::ResetLocation()
{
  if(!HasLocation()) return;
  for(Standard_Integer i=1;i<=mysensitive.Length();i++){
    if(mysensitive(i)->HasLocation() && mysensitive(i)->Location()!=Location())
      mysensitive(i)->SetLocation(mysensitive(i)->Location()*Location().Inverted());
    else
      mysensitive(i)->ResetLocation();

  }
  Select3D_SensitiveEntity::ResetLocation();
}
//=====================================================
// Function : Project
// Purpose  :
//=====================================================
void Select3D_SensitiveWire
::Project(const Handle(Select3D_Projector)& aProj)
{
  for ( Standard_Integer i=1; i<=mysensitive.Length(); i++)
    mysensitive(i)->Project(aProj);
  Select3D_SensitiveEntity::Project(aProj);
}

//=====================================================
// Function : Areas
// Purpose  :
//=====================================================
void Select3D_SensitiveWire
::Areas(SelectBasics_ListOfBox2d& theareas)
{
  Bnd_Box2d BB; // en attendant un nouveau champ rob-18-jun-97
  SelectBasics_ListOfBox2d BidL;
  Standard_Integer i;
  for (i=1; i<=mysensitive.Length(); i++)
    mysensitive.Value(i)->Areas(BidL);

  for(SelectBasics_ListIteratorOfListOfBox2d it(BidL);it.More();it.Next())
    BB.Add(it.Value());

  theareas.Append(BB);

}

//=====================================================
// Function : Matches
// Purpose  :
//=====================================================
Standard_Boolean Select3D_SensitiveWire
::Matches(const Standard_Real X,
	  const Standard_Real Y,
	  const Standard_Real aTol,
	  Standard_Real&  DMin)
{
  Standard_Integer i;
  Standard_Real Dcur;
  DMin = Precision::Infinite();
  Standard_Boolean IsTouched = Standard_False;
  for (i=1; i<=mysensitive.Length(); i++) {
    if (mysensitive.Value(i)->Matches(X,Y,aTol,Dcur)) {
      IsTouched = Standard_True;
      if(Dcur<=DMin){
	myDetectedIndex = i;
	DMin = Dcur;
      }
    }
  }
  if ( ! IsTouched )
    return Standard_False;

  // compute and validate the depth (::Depth()) along the eyeline
  return Select3D_SensitiveEntity::Matches(X,Y,aTol,DMin);
}

//=====================================================
// Function : Matches
// Purpose  :
//=====================================================
  Standard_Boolean Select3D_SensitiveWire::
Matches (const Standard_Real XMin,
	 const Standard_Real YMin,
	 const Standard_Real XMax,
	 const Standard_Real YMax,
	 const Standard_Real aTol)
{
  Standard_Integer i;
  for (i=1; i<=mysensitive.Length(); i++) {
    if (!(mysensitive.Value(i)->Matches(XMin,YMin,XMax,YMax,aTol)))
      return Standard_False;
  }
  return Standard_True;
}

//=======================================================================
//function : Matches
//purpose  :
//=======================================================================

Standard_Boolean Select3D_SensitiveWire::
Matches (const TColgp_Array1OfPnt2d& aPoly,
	 const Bnd_Box2d& aBox,
	 const Standard_Real aTol)
{
  Standard_Integer i;
  for (i=1; i<=mysensitive.Length(); i++) {
    if (!(mysensitive.Value(i)->Matches(aPoly, aBox, aTol)))
      return Standard_False;
  }
  return Standard_True;
}


//=====================================================
// Function : MaxBoxes
// Purpose  :
//=====================================================
Standard_Integer Select3D_SensitiveWire::
MaxBoxes () const
{
  return 1;
}

//=======================================================================
//function : GetConnected
//purpose  :
//=======================================================================
Handle(Select3D_SensitiveEntity) Select3D_SensitiveWire::GetConnected(const TopLoc_Location& aLoc)
{
  Handle(Select3D_SensitiveWire) SWIR = new Select3D_SensitiveWire(myOwnerId);
  for(Standard_Integer i=1;i<=mysensitive.Length();i++)
    SWIR->Add(mysensitive(i));

  if(HasLocation())
    SWIR->SetLocation(Location()*aLoc);
  else
    SWIR->SetLocation(aLoc);
  return SWIR;
}


//=======================================================================
//function : Dump
//purpose  :
//=======================================================================

void Select3D_SensitiveWire::Dump(Standard_OStream& S,const Standard_Boolean FullDump) const
{
  S<<"\tSensitiveWire 3D :"<<endl;;
  if(HasLocation())
    S<<"\t\tExisting Location"<<endl;
  S<<"\t\tComposed Of "<<mysensitive.Length()<<" Sensitive Entities"<<endl;

  for(Standard_Integer i=1;i<= mysensitive.Length();i++){
    S<<"Sensitive #"<<i<<" : "<<endl;
    mysensitive(i)->Dump(S,FullDump);}

  S<<"\tEnd Of Sensitive Wire"<<endl;

}

//=======================================================================
//function : ComputeDepth
//purpose  :
//=======================================================================
Standard_Real Select3D_SensitiveWire::ComputeDepth(const gp_Lin& EyeLine) const
{

  if(myDetectedIndex==-1)
    // should be never called...
    return Precision::Infinite();
  return mysensitive(myDetectedIndex)->ComputeDepth(EyeLine);

}

//=======================================================================
//function : SetLastPrj
//purpose  :
//=======================================================================
void Select3D_SensitiveWire::SetLastPrj(const Handle(Select3D_Projector)& Prj)
{
  Select3D_SensitiveEntity::SetLastPrj(Prj);
  for(Standard_Integer i=1;i<=mysensitive.Length();i++)
    mysensitive(i)->SetLastPrj(Prj);

}

//=======================================================================
//function : GetEdges
//purpose  : returns the sensitive edges stored in this wire
//=======================================================================
void Select3D_SensitiveWire::GetEdges( Select3D_SensitiveEntitySequence& theEdges )
{
  theEdges.Clear();
  theEdges.Append(mysensitive);
}

//=============================================================================
// Function : GetLastDetected
// Purpose  :
//=============================================================================
Handle(Select3D_SensitiveEntity) Select3D_SensitiveWire::GetLastDetected() const
{
  Handle(Select3D_SensitiveEntity) aRes;

  if ( myDetectedIndex >= 1 && myDetectedIndex <= mysensitive.Length() )
    aRes = mysensitive.Value( myDetectedIndex );

  return aRes;
}