path: root/src/Intf/Intf_Interference.cxx

// File:        Intf_Interference.cxx
// Created:     Mon Jun 24 11:52:34 1991
// Author:      Didier PIFFAULT
//              <dpf@phobox>

#include <Intf_Interference.ixx>
#include <gp_Pnt2d.hxx>
#include <gp_Pnt.hxx>

//=======================================================================
//function : Intf_Interference
//purpose  : Initialize for a deferred interference.
//=======================================================================

static Standard_Integer debug=0;

Intf_Interference::Intf_Interference (const Standard_Boolean Self)
     : SelfIntf(Self)
{}


//=======================================================================
//function : SelfInterference
//purpose  : Reset interference before perform with a new...
//=======================================================================

void Intf_Interference::SelfInterference (const Standard_Boolean Self)
{
  SelfIntf=Self;
  mySPoins.Clear();
  mySLines.Clear();
  myTZones.Clear();
}


//---------------------------------------------------------
// Return the number of sections points in an interference.
//---------------------------------------------------------
Standard_Integer Intf_Interference::NbSectionPoints () const
{
  return mySPoins.Length();
}

//-----------------------------------------------------------
// Give the section point of range Index in the interference.
//-----------------------------------------------------------
const Intf_SectionPoint& Intf_Interference::PntValue 
  (const Standard_Integer Index) const
{
  return mySPoins(Index);
}

//--------------------------------------------------------
// Return the number of sections lines in an interference.
//--------------------------------------------------------
Standard_Integer Intf_Interference::NbSectionLines () const
{
  return mySLines.Length();
}

//----------------------------------------------------------
// Give the section line of range Index in the interference.
//----------------------------------------------------------
const Intf_SectionLine& Intf_Interference::LineValue 
  (const Standard_Integer Index) const
{
  return mySLines(Index);
}


//---------------------------------------------------------------
// Return the number of sections TangentZones in an interference.
//---------------------------------------------------------------
Standard_Integer Intf_Interference::NbTangentZones () const
{
  return myTZones.Length();
}

//---------------------------------------------------------
// Give the tangentzone of range Index in the interference.
//---------------------------------------------------------
const Intf_TangentZone& Intf_Interference::ZoneValue 
  (const Standard_Integer Index) const
{
  return myTZones(Index);
}

//=======================================================================
//function : GetTolerance
//purpose  : 
//=======================================================================

Standard_Real Intf_Interference::GetTolerance () const
{
  return Tolerance;
}


//=======================================================================
//function : Insert
//purpose  : Insert a tangent zone in the list of the interference
//=======================================================================

Standard_Boolean Intf_Interference::Insert(const Intf_TangentZone& LaZone)
{
  if (myTZones.Length()<=0) return Standard_False;
  Standard_Integer lzin=0;   // Index in the list of the zone of interest.
  Standard_Integer lunp=0;   // Index of the 1st stop point in this zone.
  Standard_Integer lotp=0;   // Index of the 2nd stop point in this zone.
  Standard_Integer lunl=0;   // Index of the 1st point of the new zone.
  Standard_Integer lotl=0;   // Index of the 2nd point of the new zone.
  Standard_Boolean same=Standard_False;     // Search direction of the stop of the new zone.
  Standard_Boolean Inserted=Standard_True;  // Has the insertion succeeded ?
  Standard_Integer npcz=-1;  // Number of points in the current zone
  Standard_Integer nplz=LaZone.NumberOfPoints(); // in the new zone

  if (debug>0) {
    cout << "Zone of insertion : \n";
    LaZone.Dump(2);
    cout << endl;
  }

// Loop on TangentZone :
  for (Standard_Integer Iz=1; Iz<=myTZones.Length(); Iz++) {

  if (debug>0) {
    cout << "Zone  : "<< Iz << "\n";
    myTZones(Iz).Dump(2);
    cout << endl;
  }

// Loop on edges of the TangentZone :
    npcz=myTZones(Iz).NumberOfPoints();
    Standard_Integer Ipz0, Ipz1, Ipz2;
    for (Ipz1=1; Ipz1<=npcz; Ipz1++) {
      Ipz0=Ipz1-1;
      if (Ipz0<=0) Ipz0=npcz;
      Ipz2=(Ipz1%npcz)+1;

// Loop on edges of the new TangentZone and search of the
// corresponding point or edge:
      Standard_Integer Ilz1, Ilz2;
      for (Ilz1=1; Ilz1<=nplz; Ilz1++) {
	Ilz2=(Ilz1%nplz)+1;
	
	if ((myTZones(Iz).GetPoint(Ipz1)).IsEqual
	    (LaZone.GetPoint(Ilz1))) {
	  if ((myTZones(Iz).GetPoint(Ipz0)).IsEqual
	      (LaZone.GetPoint(Ilz2))) {
	    lzin=Iz;
	    lunp=Ipz0;
	    lotp=Ipz1;
	    lunl=Ilz1;
	    lotl=Ilz2;
	    same=Standard_False;
	    break;
	  }
	  else if ((myTZones(Iz).GetPoint(Ipz2)).IsEqual
	      (LaZone.GetPoint(Ilz2))) {
	    lzin=Iz;
	    lunp=Ipz1;
	    lotp=Ipz2;
	    lunl=Ilz1;
	    lotl=Ilz2;
	    same=Standard_True;
	    break;
	  }
	  else {
	    lzin=Iz;
	    lunp=Ipz1;
	    lunl=Ilz1;
	  }
	}
      }
      if (lotp!=0) break;
    }
    if (lotp!=0) break;
  }

  Standard_Integer Ilc;
  if (lotp!=0) {
    for (Ilc=lotl+1; (((Ilc-1)%nplz)+1)!=lunl; Ilc++) {
      myTZones(lzin).InsertBefore
	(lotp, LaZone.GetPoint(((Ilc-1)%nplz)+1));
      if (!same) lotp++;
    }
  }

  else if (lunp>0) {
    Standard_Boolean loop=Standard_False;
    for (Ilc=lunl; ; Ilc++) {
      myTZones(lzin).InsertBefore(lunp, 
					 LaZone.GetPoint((((Ilc-1)%nplz)+1)));
      lunp++;
      if (loop && (((Ilc-1)%nplz)+1)==lunl) break;
      loop=Standard_True;
    }
  }

  else {
    Inserted =Standard_False;
  }

  if (debug>0) {
    if (Inserted) {
      cout << "Zone agrandie : "<< lzin <<" \n";
      myTZones(lzin).Dump(2);
      cout << endl;
    }
  }
  if (Inserted) {
    Intf_TangentZone theNew=myTZones(lzin);
    myTZones.Remove(lzin);
    if (!Insert(theNew))
      myTZones.Append(theNew);
  }
  return Inserted;
}

//=======================================================================
//function : Insert
//purpose  : 
//=======================================================================

void Intf_Interference::Insert(const Intf_SectionPoint& pdeb,
			       const Intf_SectionPoint& pfin) 
{
  Standard_Boolean Inserted=Standard_False;
  Standard_Integer TheLS=0;
  Standard_Boolean Begin=Standard_False;
  Intf_SectionPoint TheBout(pfin);
  Standard_Integer ils, nd, nf;
  
  for (ils=1; ils<=mySLines.Length(); ils++) {
    Intf_SectionLine& SL=mySLines(ils);
    nd=SL.IsEnd(pdeb);
    nf=SL.IsEnd(pfin);
    if (nd==1) {
      if (nf>1) SL.Close();
      Inserted=Standard_True;
      TheLS=ils;
      Begin=Standard_True;
      break;
    }
    else if (nd>1) {
      if (nf==1) SL.Close();
      Inserted=Standard_True;
      TheLS=ils;
      Begin=Standard_False;
      break;
    }
    else if (nf==1) {
      Inserted=Standard_True;
      TheLS=ils;
      Begin=Standard_True;
      TheBout=pdeb;
      break;
    }
    else if (nf>1) {
      Inserted=Standard_True;
      TheLS=ils;
      Begin=Standard_False;
      TheBout=pdeb;
      break;
    }
  }
  
  if (!Inserted) {
    Intf_SectionLine LaLS;
    LaLS.Append(pdeb);
    LaLS.Append(pfin);
    mySLines.Append(LaLS);
  }
  else {
    nd=0;
    for (ils=1; ils<=mySLines.Length(); ils++) {
      if (ils != TheLS) {
	nd=mySLines(ils).IsEnd(TheBout);
	if (nd==1) {
	  if (Begin) {
	    mySLines(TheLS).Reverse();
	  }
	  mySLines(ils).Prepend(mySLines(TheLS));
	  break;
	}
	else if (nd>1) {
	  if (!Begin) {
	    mySLines(TheLS).Reverse();
	  }
	  mySLines(ils).Append(mySLines(TheLS));
	  break;
	}
      }
    }
    if (nd>0) {
      mySLines.Remove(TheLS);
    }
    else {
      if (Begin)
	mySLines(TheLS).Prepend(TheBout);
      else
	mySLines(TheLS).Append(TheBout);
    }
  }
}



//----------------------------------------------------
// 
//----------------------------------------------------
Standard_Boolean Intf_Interference::Contains
  (const Intf_SectionPoint& LePnt) const
{
  //-- LePnt.Dump(0);
  for (Standard_Integer l=1; l<=mySLines.Length(); l++) {
    if (mySLines(l).Contains(LePnt)) return Standard_True;
  }
  for (Standard_Integer t=1; t<=myTZones.Length(); t++) {
    //-- myTZones(t).Dump(2);
    if (myTZones(t).Contains(LePnt)) return Standard_True;
  }
  return Standard_False;
}


//----------------------------------------------------
// 
//----------------------------------------------------
void Intf_Interference::Dump() const
{
  cout << "Mes SectionPoint :" << endl;
  for (Standard_Integer p=1; p<=mySPoins.Length(); p++) {
    mySPoins(p).Dump(2);
  }
  cout << "Mes SectionLine :" << endl;
  for (Standard_Integer l=1; l<=mySLines.Length(); l++) {
    mySLines(l).Dump(2);
  }
  cout << "Mes TangentZone :" << endl;
  for (Standard_Integer t=1; t<=myTZones.Length(); t++) {
    myTZones(t).Dump(2);
  }
}