// Created on: 1993-07-22
// Created by: Remi LEQUETTE
// Copyright (c) 1993-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <stdio.h>
#include <BRepTest.hxx>
#include <GeometryTest.hxx>

#include <DrawTrSurf.hxx>
#include <DBRep.hxx>
#include <Draw_Interpretor.hxx>
#include <Draw_Appli.hxx>

#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <BRepLib.hxx>
#include <BRepTools_Quilt.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepBuilderAPI_MakeShell.hxx>
#include <BRepBuilderAPI.hxx>
#include <BRepBuilderAPI_Sewing.hxx>
#include <BRepOffsetAPI_FindContigousEdges.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Face.hxx>
#include <Geom_Surface.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <Precision.hxx>
#include <Draw_ProgressIndicator.hxx>
#include <NCollection_Vector.hxx>
#include <BRepBuilderAPI_FastSewing.hxx>

#include <GeomAPI_ProjectPointOnSurf.hxx>

#ifdef _WIN32
//#define strcasecmp strcmp Already defined
#include <stdio.h>
#endif

//-----------------------------------------------------------------------
// suppressarg : suppress a[d],modifie na--
//-----------------------------------------------------------------------
static void suppressarg(Standard_Integer& na,const char** a,const Standard_Integer d) 
{
  for(Standard_Integer i=d;i<na;i++) {
    a[i]=a[i+1];
    a[i+1]=NULL;
  }
  na--;
}


//=======================================================================
// mkface
//=======================================================================

static Standard_Integer mkface(Draw_Interpretor& , Standard_Integer n, const char** a)
{
  if (n < 3) return 1;
  
  Handle(Geom_Surface) S = DrawTrSurf::GetSurface(a[2]);
  if (S.IsNull()) {
    std::cout << a[2] << " is not a surface" << std::endl;
    return 1;
  }
  
  Standard_Boolean mkface = a[0][2] == 'f';
  TopoDS_Shape res;

  Standard_Boolean Segment = Standard_False;
  if ( !mkface && (n == 4 || n == 8)) {
    Segment = !strcmp(a[n-1],"1");
    n--;
  }

  if (n == 3) {
    if (mkface)
      res = BRepBuilderAPI_MakeFace(S, Precision::Confusion());
    else
      res = BRepBuilderAPI_MakeShell(S,Segment);
  }
  else if (n <= 5) {
    if (!mkface) return 1;
    Standard_Boolean orient = (n  == 4);
    TopoDS_Shape W = DBRep::Get(a[3],TopAbs_WIRE);
    if (W.IsNull()) return 1;
    res = BRepBuilderAPI_MakeFace(S,TopoDS::Wire(W),orient);
  }
  else {
    if (mkface)
      res = BRepBuilderAPI_MakeFace(S,Draw::Atof(a[3]),Draw::Atof(a[4]),Draw::Atof(a[5]),Draw::Atof(a[6]),Precision::Confusion());
    else
      res = BRepBuilderAPI_MakeShell(S,Draw::Atof(a[3]),Draw::Atof(a[4]),Draw::Atof(a[5]),Draw::Atof(a[6]),
			      Segment);
  }
  
  DBRep::Set(a[1],res);
  return 0;
}

//=======================================================================
// quilt
//=======================================================================

static Standard_Integer quilt(Draw_Interpretor& , Standard_Integer n, const char** a)
{
  if (n < 4) return 1;
  BRepTools_Quilt Q;

  Standard_Integer i = 2;
  while (i < n) {
    TopoDS_Shape S = DBRep::Get(a[i]);
    if (!S.IsNull()) {
      if (S.ShapeType() == TopAbs_EDGE) {
	if (i+1 < n) {
	  TopoDS_Shape E = DBRep::Get(a[i+1]);
	  if (!E.IsNull()) {
	    if (E.ShapeType() == TopAbs_EDGE) {
	      i++;
	      Q.Bind(TopoDS::Edge(S),TopoDS::Edge(E));
	    }
	  }
	}
      }
      if (S.ShapeType() == TopAbs_VERTEX) {
	if (i+1 < n) {
	  TopoDS_Shape E = DBRep::Get(a[i+1]);
	  if (!E.IsNull()) {
	    if (E.ShapeType() == TopAbs_VERTEX) {
	      i++;
	      Q.Bind(TopoDS::Vertex(S),TopoDS::Vertex(E));
	    }
	  }
	}
      }
      else {
	Q.Add(S);
      }
    }
    i++;
  }

  DBRep::Set(a[1],Q.Shells());
  return 0;
}


//=======================================================================
// mksurface
//=======================================================================

static Standard_Integer mksurface(Draw_Interpretor& , Standard_Integer n, const char** a)
{
  if (n < 3) return 1;

  TopoDS_Shape S = DBRep::Get(a[2],TopAbs_FACE);
  if (S.IsNull()) return 1;
  TopLoc_Location L;
  Handle(Geom_Surface) C = BRep_Tool::Surface(TopoDS::Face(S),L);


  DrawTrSurf::Set(a[1],C->Transformed(L.Transformation()));
  return 0;
}

//=======================================================================
// mkplane
//=======================================================================

static Standard_Integer mkplane(Draw_Interpretor& theDI, Standard_Integer n, const char** a)
{
  if (n < 3) return 1;

  TopoDS_Shape S = DBRep::Get(a[2],TopAbs_WIRE);
  if (S.IsNull()) return 1;

  Standard_Boolean OnlyPlane = Standard_False;
  if ( n == 4) {
    OnlyPlane =  !strcmp(a[3],"1");
  }

  BRepBuilderAPI_MakeFace aMF(TopoDS::Wire(S), OnlyPlane);

  switch(aMF.Error())
  {
  case BRepBuilderAPI_FaceDone:
    DBRep::Set(a[1],aMF.Face());
    break;
  case BRepBuilderAPI_NoFace:
    theDI << "Error. mkplane has been finished with \"No Face\" status.\n";
    break;
  case BRepBuilderAPI_NotPlanar:
    theDI << "Error. mkplane has been finished with \"Not Planar\" status.\n";
    break;
  case BRepBuilderAPI_CurveProjectionFailed:
    theDI << "Error. mkplane has been finished with \"Fail in projection curve\" status.\n";
    break;
  case BRepBuilderAPI_ParametersOutOfRange:
    theDI << "Error. mkplane has been finished with \"Parameters are out of range\" status.\n";
    break;
  default:
    theDI << "Error. Undefined status. Please check the code.\n";
    break;
  }

  return 0;
}

//=======================================================================
// pcurve
//=======================================================================
Standard_IMPORT Draw_Color DrawTrSurf_CurveColor(const Draw_Color col);
Standard_IMPORT void DBRep_WriteColorOrientation ();
Standard_IMPORT Draw_Color DBRep_ColorOrientation (const TopAbs_Orientation Or);

static Standard_Integer pcurve(Draw_Interpretor& , Standard_Integer n, const char** a)
{
  Standard_Boolean mute = Standard_False;
  for(Standard_Integer ia=1;ia<n;ia++) {
    if (!strcasecmp(a[ia],"-mute")) {
      suppressarg(n,a,ia);
      mute = Standard_True;
    }
  }

  if (n == 2) {
    // pcurves of a face
    TopoDS_Shape S = DBRep::Get(a[1],TopAbs_FACE);
    if (S.IsNull()) return 1;

    if (!mute) DBRep_WriteColorOrientation();
    Draw_Color col, savecol = DrawTrSurf_CurveColor(Draw_rouge);

    char* name = new char[100];
    Standard_Real f,l;
    S.Orientation(TopAbs_FORWARD);
    TopExp_Explorer ex(S,TopAbs_EDGE);
    for (Standard_Integer i=1; ex.More(); ex.Next(), i++) {
      const Handle(Geom2d_Curve) c = BRep_Tool::CurveOnSurface
	(TopoDS::Edge(ex.Current()),TopoDS::Face(S),f,l);
      if ( c.IsNull() ) {
        std::cout << "Error: Edge " << i << " does not have pcurve" << std::endl;
        continue;
      }
      col = DBRep_ColorOrientation(ex.Current().Orientation());
      DrawTrSurf_CurveColor(col);

      Sprintf(name,"%s_%d",a[1],i);
      Standard_Real fr = c->FirstParameter(), lr = c->LastParameter();
      Standard_Boolean IsPeriodic = c->IsPeriodic();
      if (c->DynamicType() == STANDARD_TYPE(Geom2d_TrimmedCurve))
      {
        const Handle(Geom2d_Curve)& aC = Handle(Geom2d_TrimmedCurve)::DownCast (c)->BasisCurve(); 
        IsPeriodic = aC->IsPeriodic();
        fr = aC->FirstParameter();
        lr = aC->LastParameter();
      }
      if(!IsPeriodic && 
        ((fr - f > Precision::PConfusion()) || (l - lr > Precision::PConfusion())))
      {
        DrawTrSurf::Set(name, c);
      }
      else
      {
        DrawTrSurf::Set(name,new Geom2d_TrimmedCurve(c,f,l));
      }
    }
    DrawTrSurf_CurveColor(savecol);

  }
  else if (n >= 4) {
    TopoDS_Shape SE = DBRep::Get(a[2],TopAbs_EDGE);
    if (SE.IsNull()) return 1;
    TopoDS_Shape SF = DBRep::Get(a[3],TopAbs_FACE);
    if (SF.IsNull()) return 1;

    Draw_Color col, savecol = DrawTrSurf_CurveColor(Draw_rouge);
    Standard_Real f,l;
    const Handle(Geom2d_Curve) c = BRep_Tool::CurveOnSurface
      (TopoDS::Edge(SE),TopoDS::Face(SF),f,l);
    Standard_Real fr = c->FirstParameter(), lr = c->LastParameter();
    Standard_Boolean IsPeriodic = c->IsPeriodic();
    if (c->DynamicType() == STANDARD_TYPE(Geom2d_TrimmedCurve))
    {
      const Handle(Geom2d_Curve)& aC = Handle(Geom2d_TrimmedCurve)::DownCast (c)->BasisCurve(); 
      IsPeriodic = aC->IsPeriodic();
      fr = aC->FirstParameter();
      lr = aC->LastParameter();
    }

    col = DBRep_ColorOrientation(SE.Orientation());
    DrawTrSurf_CurveColor(col);
    if(!IsPeriodic && 
      ((fr - f > Precision::PConfusion()) || (l - lr > Precision::PConfusion())))
    {
      DrawTrSurf::Set(a[1], c);
    }
    else
    {
      DrawTrSurf::Set(a[1],new Geom2d_TrimmedCurve(c,f,l));
    }
    DrawTrSurf_CurveColor(savecol);
  }
  else { 
    return 1;
  }
    
  return 0;
}

//=======================================================================
// sewing
//=======================================================================

static Standard_Integer sewing (Draw_Interpretor& theDi, 
				Standard_Integer theArgc, const char** theArgv)
{
  BRepBuilderAPI_Sewing aSewing;
  Standard_Integer aPar = 1;
  TopTools_SequenceOfShape aSeq;

  Standard_Real aTol = 1.0e-06;
  Standard_Boolean aSewingMode = Standard_True;
  Standard_Boolean anAnalysisMode = Standard_True;
  Standard_Boolean aCuttingMode = Standard_True;
  Standard_Boolean aNonManifoldMode = Standard_False;
  Standard_Boolean aSameParameterMode = Standard_True;
  Standard_Boolean aFloatingEdgesMode = Standard_False;
  Standard_Boolean aFaceMode = Standard_True;
  Standard_Boolean aSetMinTol = Standard_False;
  Standard_Real aMinTol = 0.;
  Standard_Real aMaxTol = Precision::Infinite();

  for (Standard_Integer i = 2; i < theArgc; i++)
  {
    if (theArgv[i][0] == '-' || theArgv[i][0] == '+')
    {
      Standard_Boolean aVal = (theArgv[i][0] == '+' ? Standard_True : Standard_False);
      switch (tolower(theArgv[i][1]))
      {
      case 'm':
        {
          if (tolower(theArgv[i][2]) == 'i' && i+1 < theArgc)
          {
            if (Draw::Atof (theArgv[i+1]))
            {
              aMinTol = Draw::Atof (theArgv[++i]);
              aSetMinTol = Standard_True;
            }
            else
            {
              theDi << "Error! min tolerance can't possess the null value\n";
              return (1);
            }
          }
          if (tolower(theArgv[i][2]) == 'a' && i+1 < theArgc)
          {
            if (Draw::Atof (theArgv[i+1]))
              aMaxTol = Draw::Atof (theArgv[++i]);
            else
            {
              theDi << "Error! max tolerance can't possess the null value\n";
              return (1);
            }
          }
        }
        break;
      case 's': aSewingMode = aVal; break;
      case 'a': anAnalysisMode = aVal; break;
      case 'c': aCuttingMode = aVal; break;
      case 'n': aNonManifoldMode = aVal; break;
      case 'p': aSameParameterMode = aVal; break;
      case 'e': aFloatingEdgesMode = aVal; break;
      case 'f': aFaceMode = aVal; break;
      }
    }
    else
    {
      TopoDS_Shape aShape = DBRep::Get (theArgv[i]);
      if (!aShape.IsNull())
      {
        aSeq.Append (aShape);
        aPar++;
      }
      else
      {
        if (Draw::Atof (theArgv[i]))
          aTol = Draw::Atof (theArgv[i]);
      }
    }
  }
   
  if (aPar < 2)
  {
    theDi << "Use: " << theArgv[0] << " result [tolerance] shape1 shape2 ... [min tolerance] [max tolerance] [switches]\n";
    theDi << "To set user's value of min/max tolerances the following syntax is used: +<parameter> <value>\n";
    theDi << "- parameters are identified by letters:\n";
    theDi << "  mint - min tolerance\n";
    theDi << "  maxt - max tolerance\n";
    theDi << "Switches allow to tune other parameters of Sewing\n";
    theDi << "The following syntax is used: <symbol><parameter>\n";
    theDi << "- symbol may be - to set parameter off, + to set on\n";
    theDi << "- parameters are identified by letters:\n";
    theDi << "  s - mode for creating sewed shape\n";
    theDi << "  a - mode for analysis of input shapes\n";
    theDi << "  c - mode for cutting of free edges\n";
    theDi << "  n - mode for non manifold processing\n";
    theDi << "  p - mode for same parameter processing for edges\n";
    theDi << "  e - mode for sewing floating edges\n";
    theDi << "  f - mode for sewing faces\n";
    return (1);
  }
    
  if (!aSetMinTol)
    aMinTol = aTol*1e-4;
  if (aTol < Precision::Confusion())
    aTol = Precision::Confusion();
  if (aMinTol < Precision::Confusion())
    aMinTol = Precision::Confusion();
  if (aMinTol > aTol)
  {
    theDi << "Error! min tolerance can't exceed working tolerance\n";
    return (1);
  }
  if (aMaxTol < aTol)
  {
    theDi << "Error! max tolerance can't be less than working tolerance\n";
    return (1);
  }

  aSewing.Init (aTol, aSewingMode, anAnalysisMode, aCuttingMode, aNonManifoldMode);
  aSewing.SetSameParameterMode (aSameParameterMode);
  aSewing.SetFloatingEdgesMode (aFloatingEdgesMode);
  aSewing.SetFaceMode (aFaceMode);
  aSewing.SetMinTolerance (aMinTol);
  aSewing.SetMaxTolerance (aMaxTol);

  for (Standard_Integer i = 1; i <= aSeq.Length(); i++)
    aSewing.Add(aSeq.Value(i));
  
  Handle(Draw_ProgressIndicator) aProgress = new Draw_ProgressIndicator (theDi, 1);
  aSewing.Perform (aProgress);
  aSewing.Dump();

  const TopoDS_Shape& aRes = aSewing.SewedShape();
  if (!aRes.IsNull())
    DBRep::Set(theArgv[1], aRes);
  return 0;
}

//=======================================================================
//function : fastsewing
//purpose  : 
//=======================================================================
Standard_Integer fastsewing (Draw_Interpretor& theDI, 
                            Standard_Integer theNArg, 
                            const char** theArgVal)
{
  if(theNArg < 3)
  {
    //                0         1       2     3         4
    theDI << "Use: fastsewing result [-tol <value>] <list_of_faces>\n";
    return 1;
  }

  BRepBuilderAPI_FastSewing aFS;

  Standard_Integer aStartIndex = 2;

  if(!strcmp(theArgVal[aStartIndex], "-tol"))
  {
    aFS.SetTolerance(Draw::Atof (theArgVal[aStartIndex+1]));
    aStartIndex = 4;
  }

  for(Standard_Integer i = aStartIndex; i < theNArg; i++)
  {
    TopoDS_Shape aS = DBRep::Get(theArgVal[i]);
    
    if(!aFS.Add(aS))
    {
      theDI << "Face is not added. See statuses.\n";
    }
  }

  BRepBuilderAPI_FastSewing::FS_VARStatuses aStatus = aFS.GetStatuses();

  if(aStatus)
  {
    theDI << "Error: There are some problems while adding (" <<
                        (static_cast<Standard_Integer>(aStatus)) << ")\n";
    aFS.GetStatuses(&std::cout);
  }

  aFS.Perform();

  aStatus = aFS.GetStatuses();

  if(aStatus)
  {
    theDI << "Error: There are some problems while performing (" <<
                        (static_cast<Standard_Integer>(aStatus)) << ")\n";
    aFS.GetStatuses(&std::cout);
  }

  DBRep::Set(theArgVal[1], aFS.GetResult());

  return 0;
}

//=======================================================================
// continuity
//=======================================================================

static Standard_Integer continuity (Draw_Interpretor& , 
				    Standard_Integer n, const char** a)
{
  if (n < 2) return (1);

  BRepOffsetAPI_FindContigousEdges aFind;

  TopoDS_Shape sh = DBRep::Get(a[1]);
  Standard_Integer i=1;
  if (sh.IsNull()) {
    if (n < 3) return (1);
    Standard_Real tol = Draw::Atof(a[1]);
    aFind.Init(tol, Standard_False);
    i = 2;
  }
  
  while (i < n) {
    sh = DBRep::Get(a[i]);
    aFind.Add(sh);
    i++;
  }

  aFind.Perform();
  aFind.Dump();

  return 0;
}

//=======================================================================
// encoderegularity
//=======================================================================
static Standard_Integer encoderegularity (Draw_Interpretor& , 
					  Standard_Integer n, const char** a)

{
  if (n < 2) return 1;
  TopoDS_Shape sh = DBRep::Get(a[1]);
  if (sh.IsNull()) return 1;
  if (n==2) 
    BRepLib::EncodeRegularity(sh);
  else {
    Standard_Real Tol = Draw::Atof(a[2]);
    Tol *= M_PI/180.;
    BRepLib::EncodeRegularity(sh, Tol);
  }
  return 0;
}

static Standard_Integer getedgeregul
  (Draw_Interpretor& di, Standard_Integer argc, const char** argv)
{
  if( argc < 3)
  {
    std::cout<<"Invalid number of arguments. Should be: checkedgeregularity edge face1 [face2]"<<std::endl;
    return 1;
  }
  
  TopoDS_Shape anEdge =  DBRep::Get(argv[1],TopAbs_EDGE);
  TopoDS_Shape aFace1 = DBRep::Get(argv[2],TopAbs_FACE);
  TopoDS_Shape aFace2 = (argc > 3  ? DBRep::Get(argv[3],TopAbs_FACE) : aFace1);
  if( anEdge.IsNull() || aFace1.IsNull() || aFace2.IsNull())
  {
    std::cout<<"Invalid number of arguments. Should be: getedgeregularity edge face1 [face2]"<<std::endl;
    return 1;
  }
 
  GeomAbs_Shape aRegularity = BRep_Tool::Continuity(TopoDS::Edge(anEdge), TopoDS::Face(aFace1),  TopoDS::Face(aFace2));
  TCollection_AsciiString aStrReg("Regularity of edge : ");
  switch( aRegularity)
  {
    default:
    case GeomAbs_C0 : aStrReg += "C0"; break;
    case GeomAbs_G1 : aStrReg += "G1"; break;
    case GeomAbs_C1 : aStrReg += "C1"; break;
    case GeomAbs_G2 : aStrReg += "G2"; break;
    case GeomAbs_C2 : aStrReg += "C2"; break;
    case GeomAbs_C3 : aStrReg += "C3"; break;
    case GeomAbs_CN : aStrReg += "CN"; break;
  };

  di<<aStrReg.ToCString()<<"\n";
  return 0; // Done
}

//=======================================================================
//function : projponf
//purpose  : 
//=======================================================================
static Standard_Integer projponf(Draw_Interpretor& di, Standard_Integer n, const char** a)
{
  if (n < 3 || n > 5) {
    di << "Project point on the face.\n";
    di << "Usage: projponf face pnt [extrema flag: -min/-max/-minmax] [extrema algo: -g(grad)/-t(tree)]\n";
    return 1;
  }
  // get face
  TopoDS_Shape aS = DBRep::Get(a[1]);
  if (aS.IsNull()) {
    di << "the face is a null shape\n";
    return 0;
  }
  //
  if (aS.ShapeType() != TopAbs_FACE) {
    di << "not a face\n";
    return 0;
  }
  //
  const TopoDS_Face& aFace = *(TopoDS_Face*)&aS;
  //
  // get point
  gp_Pnt aP;
  DrawTrSurf::GetPoint(a[2], aP);
  //
  // get projection options
  // default values;
  Extrema_ExtAlgo anExtAlgo = Extrema_ExtAlgo_Grad;
  Extrema_ExtFlag anExtFlag = Extrema_ExtFlag_MINMAX;
  //
  for (Standard_Integer i = 3; i < n; ++i) {
    if (!strcasecmp(a[i], "-min")) {
      anExtFlag = Extrema_ExtFlag_MIN;
    }
    else if (!strcasecmp(a[i], "-max")) {
      anExtFlag = Extrema_ExtFlag_MAX;
    }
    else if (!strcasecmp(a[i], "-minmax")) {
      anExtFlag = Extrema_ExtFlag_MINMAX;
    }
    else if (!strcasecmp(a[i], "-t")) {
      anExtAlgo = Extrema_ExtAlgo_Tree;
    }
    else if (!strcasecmp(a[i], "-g")) {
      anExtAlgo = Extrema_ExtAlgo_Grad;
    }
  }
  //
  // get surface
  TopLoc_Location aLoc;
  const Handle(Geom_Surface)& aSurf = BRep_Tool::Surface(aFace, aLoc);
  // move point to surface location
  aP.Transform(aLoc.Transformation().Inverted());
  //
  // get bounds of the surface
  Standard_Real aUMin, aUMax, aVMin, aVMax;
  aSurf->Bounds(aUMin, aUMax, aVMin, aVMax);
  //
  // initialize projector
  GeomAPI_ProjectPointOnSurf aProjPS;
  aProjPS.Init(aSurf, aUMin, aUMax, aVMin, aVMax);
  // set the options
  aProjPS.SetExtremaAlgo(anExtAlgo);
  aProjPS.SetExtremaFlag(anExtFlag);
  // perform projection
  aProjPS.Perform(aP);
  //
  if (aProjPS.NbPoints()) {
    // lower distance
    Standard_Real aDist = aProjPS.LowerDistance();
    // lower distance parameters
    Standard_Real U, V;
    aProjPS.LowerDistanceParameters(U, V);
    // nearest point
    gp_Pnt aPProj = aProjPS.NearestPoint();
    // translate projection point to face location
    aPProj.Transform(aLoc.Transformation());
    //
    // print the projection values
    di << "proj dist = " << aDist << "\n";
    di << "uvproj = " << U << " " << V << "\n";
    di << "pproj = " << aPProj.X() << " " << aPProj.Y() << " " << aPProj.Z() << "\n";
  }
  else {
    if (!aProjPS.IsDone()) {
      di << "projection failed\n";
    }
    else {
      di << "no projection found\n";
    }
  }
  return 0;
}

//=======================================================================
//function : SurfaceCommands
//purpose  : 
//=======================================================================

void  BRepTest::SurfaceCommands(Draw_Interpretor& theCommands)
{
  static Standard_Boolean done = Standard_False;
  if (done) return;
  done = Standard_True;

  DBRep::BasicCommands(theCommands);
  GeometryTest::SurfaceCommands(theCommands);

  const char* g = "Surface topology commands";

  theCommands.Add("mkface",
		  "mkface facename surfacename [ufirst ulast vfirst vlast] [wire [norient]]",
		  __FILE__,mkface,g);

  theCommands.Add("mkshell",
		  "mkshell shellname surfacename [ufirst ulast vfirst vlast] [segment 0/1]",
		  __FILE__,mkface,g);

  theCommands.Add("quilt",
		  "quilt compoundname shape1 edgeshape2  edgeshape1... shape2  edgeshape3 edgeshape1or2 ... shape3 ...",
		  __FILE__,quilt,g);
  
  theCommands.Add("mksurface",
		  "mksurface surfacename facename",
		  __FILE__,mksurface,g);

  theCommands.Add("mkplane",
		  "mkplane facename wirename [OnlyPlane 0/1]",
		  __FILE__,mkplane,g);

  theCommands.Add("pcurve",
		  "pcurve [name edgename] facename",
		  __FILE__,pcurve,g);

  theCommands.Add("sewing",
		  "sewing result [tolerance] shape1 shape2 ... [min tolerance] [max tolerance] [switches]",
		  __FILE__,sewing, g);

  theCommands.Add("continuity", 
		  "continuity [tolerance] shape1 shape2 ...",
		  __FILE__,continuity, g);

  theCommands.Add("encoderegularity", 
		  "encoderegularity shape [tolerance (in degree)]",
		  __FILE__,encoderegularity, g);

  theCommands.Add ("fastsewing", "fastsewing result [-tol <value>] <list_of_faces>", 
                                                __FILE__, fastsewing, g);
  theCommands.Add ("getedgeregularity", "getedgeregularity edge face1 [face2]",  __FILE__,getedgeregul,g);

  theCommands.Add ("projponf",
                   "projponf face pnt [extrema flag: -min/-max/-minmax] [extrema algo: -g(grad)/-t(tree)]\n"
                   "\t\tProject point on the face.",
                   __FILE__, projponf, g);
}