[occt.git] / src / HLRBRep / HLRBRep_CurveTool.cxx

// Created on: 1995-07-17
// Created by: Modelistation
// Copyright (c) 1995-1999 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 <Geom2d_BezierCurve.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <GeomAbs_CurveType.hxx>
#include <GeomAbs_Shape.hxx>
#include <gp_Pnt2d.hxx>
#include <gp_Vec2d.hxx>
#include <HLRBRep_Curve.hxx>
#include <HLRBRep_CurveTool.hxx>
#include <Standard_DomainError.hxx>
#include <Standard_NoSuchObject.hxx>
#include <Standard_OutOfRange.hxx>
#include <TColStd_Array1OfReal.hxx>

//=======================================================================
//function : NbSamples
//purpose  : 
//=======================================================================
Standard_Integer
HLRBRep_CurveTool::NbSamples (const Standard_Address C)
{ 
  GeomAbs_CurveType typC = ((HLRBRep_Curve *)C)->GetType();
  static Standard_Real nbsOther = 10.0;
  Standard_Real nbs = nbsOther;
  
  if(typC == GeomAbs_Line) 
    nbs = 2;
  else if(typC == GeomAbs_BezierCurve) 
    nbs = 3 + ((HLRBRep_Curve *)C)->NbPoles();
  else if(typC == GeomAbs_BSplineCurve) { 
    nbs = ((HLRBRep_Curve *)C)->NbKnots();
    nbs*= ((HLRBRep_Curve *)C)->Degree();
    if(nbs < 2.0) nbs=2;
  }
  if(nbs>50)
    nbs = 50;
  return((Standard_Integer)nbs);
}

//=======================================================================
//function : NbSamples
//purpose  : 
//=======================================================================

Standard_Integer
HLRBRep_CurveTool::NbSamples (const Standard_Address C,
                              const Standard_Real u1,
                              const Standard_Real u2) 
{ 
  GeomAbs_CurveType typC = ((HLRBRep_Curve *)C)->GetType();
  static Standard_Real nbsOther = 10.0;
  Standard_Real nbs = nbsOther;
  
  if(typC == GeomAbs_Line) 
    nbs = 2;
  else if(typC == GeomAbs_BezierCurve) 
    nbs = 3 + ((HLRBRep_Curve *)C)->NbPoles();
  else if(typC == GeomAbs_BSplineCurve) { 
    Handle(Geom_Curve) aCurve = ((HLRBRep_Curve *)C)->Curve().Curve().Curve();
    GeomAdaptor_Curve GAcurve(aCurve, u1, u2);
    nbs = GAcurve.NbIntervals(GeomAbs_CN) + 1;
    nbs*= ((HLRBRep_Curve *)C)->Degree();
    if(nbs < 2.0) nbs=2;
  }
  if(nbs>50)
    nbs = 50;
  return((Standard_Integer)nbs);
}
Commit	Line	Data
b311480e	1	// Created on: 1995-07-17
	2	// Created by: Modelistation
	3	// Copyright (c) 1995-1999 Matra Datavision
973c2be1	4	// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e	5	//
973c2be1	6	// This file is part of Open CASCADE Technology software library.
b311480e	7	//
d5f74e42	8	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	9	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	10	// by the Free Software Foundation, with special exception defined in the file
	11	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	12	// distribution for complete text of the license and disclaimer of any warranty.
b311480e	13	//
973c2be1	14	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	15	// commercial license or contractual agreement.
7fd59977	16
42cf5bc1	17
cb389a77	18	#include <Geom2d_BezierCurve.hxx>
cb389a77	19	#include <Geom2d_BSplineCurve.hxx>
42cf5bc1	20	#include <GeomAbs_CurveType.hxx>
	21	#include <GeomAbs_Shape.hxx>
	22	#include <gp_Pnt2d.hxx>
	23	#include <gp_Vec2d.hxx>
	24	#include <HLRBRep_Curve.hxx>
	25	#include <HLRBRep_CurveTool.hxx>
	26	#include <Standard_DomainError.hxx>
	27	#include <Standard_NoSuchObject.hxx>
	28	#include <Standard_OutOfRange.hxx>
7fd59977	29	#include <TColStd_Array1OfReal.hxx>
	30
	31	//=======================================================================
	32	//function : NbSamples
	33	//purpose :
	34	//=======================================================================
7fd59977	35	Standard_Integer
	36	HLRBRep_CurveTool::NbSamples (const Standard_Address C)
	37	{
	38	GeomAbs_CurveType typC = ((HLRBRep_Curve *)C)->GetType();
	39	static Standard_Real nbsOther = 10.0;
	40	Standard_Real nbs = nbsOther;
	41
	42	if(typC == GeomAbs_Line)
	43	nbs = 2;
	44	else if(typC == GeomAbs_BezierCurve)
	45	nbs = 3 + ((HLRBRep_Curve *)C)->NbPoles();
	46	else if(typC == GeomAbs_BSplineCurve) {
	47	nbs = ((HLRBRep_Curve *)C)->NbKnots();
	48	nbs= ((HLRBRep_Curve )C)->Degree();
	49	if(nbs < 2.0) nbs=2;
	50	}
	51	if(nbs>50)
	52	nbs = 50;
	53	return((Standard_Integer)nbs);
	54	}
	55
	56	//=======================================================================
	57	//function : NbSamples
	58	//purpose :
	59	//=======================================================================
	60
	61	Standard_Integer
	62	HLRBRep_CurveTool::NbSamples (const Standard_Address C,
c59fcd11	63	const Standard_Real u1,
c59fcd11	64	const Standard_Real u2)
7fd59977	65	{
	66	GeomAbs_CurveType typC = ((HLRBRep_Curve *)C)->GetType();
	67	static Standard_Real nbsOther = 10.0;
	68	Standard_Real nbs = nbsOther;
	69
	70	if(typC == GeomAbs_Line)
	71	nbs = 2;
	72	else if(typC == GeomAbs_BezierCurve)
	73	nbs = 3 + ((HLRBRep_Curve *)C)->NbPoles();
	74	else if(typC == GeomAbs_BSplineCurve) {
c59fcd11	75	Handle(Geom_Curve) aCurve = ((HLRBRep_Curve *)C)->Curve().Curve().Curve();
	76	GeomAdaptor_Curve GAcurve(aCurve, u1, u2);
	77	nbs = GAcurve.NbIntervals(GeomAbs_CN) + 1;
7fd59977	78	nbs= ((HLRBRep_Curve )C)->Degree();
	79	if(nbs < 2.0) nbs=2;
	80	}
	81	if(nbs>50)
	82	nbs = 50;
	83	return((Standard_Integer)nbs);
	84	}