OCCT

// Created on: 2000-05-24
// Created by: data exchange team
// Copyright (c) 2000-2014 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 <BRep_Tool.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeUpgrade_EdgeDivide.hxx>
#include <ShapeUpgrade_SplitCurve2d.hxx>
#include <ShapeUpgrade_SplitCurve3d.hxx>
#include <Standard_Type.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>

IMPLEMENT_STANDARD_RTTIEXT(ShapeUpgrade_EdgeDivide, ShapeUpgrade_Tool)

//=================================================================================================

ShapeUpgrade_EdgeDivide::ShapeUpgrade_EdgeDivide()

{
  mySplitCurve3dTool = new ShapeUpgrade_SplitCurve3d;
  mySplitCurve2dTool = new ShapeUpgrade_SplitCurve2d;
}

//=================================================================================================

void ShapeUpgrade_EdgeDivide::Clear()
{
  myKnots3d.Nullify();
  myKnots2d.Nullify();
  myHasCurve3d = false;
  myHasCurve2d = false;
}

//=================================================================================================

bool ShapeUpgrade_EdgeDivide::Compute(const TopoDS_Edge& anEdge)
{
  Clear();

  double                  f, l;
  occ::handle<Geom_Curve> curve3d = BRep_Tool::Curve(anEdge, f, l);
  myHasCurve3d                    = !curve3d.IsNull();

  occ::handle<ShapeUpgrade_SplitCurve3d> theSplit3dTool = GetSplitCurve3dTool();
  if (myHasCurve3d)
  {
    theSplit3dTool->Init(curve3d, f, l);
    theSplit3dTool->Compute();
    myKnots3d = theSplit3dTool->SplitValues();
  }

  // on pcurve(s): all knots
  // assume that if seam-edge, its pcurve1 and pcurve2 has the same split knots !!!
  double                    f2d = 0., l2d = 0.;
  occ::handle<Geom2d_Curve> pcurve1;
  if (!myFace.IsNull())
  { // process free edges
    ShapeAnalysis_Edge sae;
    sae.PCurve(anEdge, myFace, pcurve1, f2d, l2d, false);
  }
  myHasCurve2d = !pcurve1.IsNull();

  occ::handle<ShapeUpgrade_SplitCurve2d> theSplit2dTool = GetSplitCurve2dTool();
  if (myHasCurve2d)
  {
    theSplit2dTool->Init(pcurve1, f2d, l2d);
    theSplit2dTool->Compute();
    myKnots2d = theSplit2dTool->SplitValues();
  }

  return theSplit3dTool->Status(ShapeExtend_DONE) || theSplit2dTool->Status(ShapeExtend_DONE);
}

//=================================================================================================

void ShapeUpgrade_EdgeDivide::SetSplitCurve2dTool(
  const occ::handle<ShapeUpgrade_SplitCurve2d>& splitCurve2dTool)
{
  mySplitCurve2dTool = splitCurve2dTool;
}

//=================================================================================================

void ShapeUpgrade_EdgeDivide::SetSplitCurve3dTool(
  const occ::handle<ShapeUpgrade_SplitCurve3d>& splitCurve3dTool)
{
  mySplitCurve3dTool = splitCurve3dTool;
}

//=================================================================================================

occ::handle<ShapeUpgrade_SplitCurve2d> ShapeUpgrade_EdgeDivide::GetSplitCurve2dTool() const
{
  return mySplitCurve2dTool;
}

occ::handle<ShapeUpgrade_SplitCurve3d> ShapeUpgrade_EdgeDivide::GetSplitCurve3dTool() const
{
  return mySplitCurve3dTool;
}