1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
19 #include <gp_Trsf.hxx>
22 #include <IGESConvGeom_GeomBuilder.hxx>
23 #include <IGESGeom_CopiousData.hxx>
24 #include <IGESGeom_TransformationMatrix.hxx>
25 #include <Interface_Translates.hxx>
26 #include <Standard_DomainError.hxx>
27 #include <TColStd_HArray1OfReal.hxx>
28 #include <TColStd_HArray2OfReal.hxx>
30 static Standard_Real epsl = 1.E-10;
31 static Standard_Real epsa = 1.E-10;
33 IGESConvGeom_GeomBuilder::IGESConvGeom_GeomBuilder ()
37 void IGESConvGeom_GeomBuilder::Clear ()
39 theXYZ = new TColgp_HSequenceOfXYZ();
40 theVec = new TColgp_HSequenceOfXYZ();
41 gp_Trsf trid; thepos = trid;
44 void IGESConvGeom_GeomBuilder::AddXY (const gp_XY& val)
46 gp_XYZ aval (val.X(),val.Y(),0.);
47 theXYZ->Append (aval);
48 aval.SetCoord (0.,0.,0.);
49 theVec->Append (aval);
52 void IGESConvGeom_GeomBuilder::AddXYZ (const gp_XYZ& val)
55 theVec->Append (gp_XYZ(0.,0.,0.) );
58 void IGESConvGeom_GeomBuilder::AddVec (const gp_XYZ& val)
60 if (!theVec->IsEmpty()) theVec->SetValue (theVec->Length(), val);
63 Standard_Integer IGESConvGeom_GeomBuilder::NbPoints () const
64 { return theXYZ->Length(); }
66 gp_XYZ IGESConvGeom_GeomBuilder::Point (const Standard_Integer num) const
67 { return theXYZ->Value (num); }
69 Handle(IGESGeom_CopiousData) IGESConvGeom_GeomBuilder::MakeCopiousData
70 (const Standard_Integer datatype, const Standard_Boolean polyline) const
72 Standard_Integer num, nb = theXYZ->Length();
73 if (datatype < 1 || datatype > 3 || nb == 0 || (polyline && datatype == 3))
74 throw Standard_DomainError("IGESConvGeom_GeomBuilder : MakeCopiousData");
76 Standard_Integer nbd = datatype+1; // 1->2 2->3 et 3->6
77 if (datatype == 3) nbd = 6;
78 Handle(TColStd_HArray1OfReal) data = new TColStd_HArray1OfReal (1,nb*nbd);
79 Standard_Real CZ = 0.;
80 for (num = 1; num <= nb; num ++) {
81 const gp_XYZ& pnt = theXYZ->Value(num);
82 data->SetValue ((num-1)*nbd+1 , pnt.X());
83 data->SetValue ((num-1)*nbd+2 , pnt.Y());
84 if (datatype > 1) data->SetValue ((num-1)*nbd+3 , pnt.Z());
86 if (datatype < 3) continue;
87 const gp_XYZ& vec = theVec->Value(num);
88 data->SetValue ((num-1)*nbd+4 , vec.X());
89 data->SetValue ((num-1)*nbd+5 , vec.Y());
90 data->SetValue ((num-1)*nbd+6 , vec.Z());
92 if (datatype == 1) CZ /= nb;
94 Handle(IGESGeom_CopiousData) res = new IGESGeom_CopiousData;
95 res->Init (datatype,CZ,data);
96 res->SetPolyline (polyline);
100 gp_Trsf IGESConvGeom_GeomBuilder::Position () const
103 void IGESConvGeom_GeomBuilder::SetPosition (const gp_Trsf& pos)
106 void IGESConvGeom_GeomBuilder::SetPosition (const gp_Ax3& pos)
108 gp_Ax3 orig (gp::XOY());
110 ps.SetTransformation (pos,orig);
114 void IGESConvGeom_GeomBuilder::SetPosition (const gp_Ax2& pos)
120 void IGESConvGeom_GeomBuilder::SetPosition (const gp_Ax1& pos)
122 const gp_Pnt& p = pos.Location();
123 const gp_Dir& d = pos.Direction();
128 Standard_Boolean IGESConvGeom_GeomBuilder::IsIdentity () const
130 if (thepos.Form() == gp_Identity) return Standard_True;
131 // sinon, regarder de plus pres ...
132 if (!IsTranslation()) return Standard_False;
133 if (!thepos.TranslationPart().IsEqual (gp_XYZ(0.,0.,0.),epsl) )
134 return Standard_False;
135 return Standard_True;
138 Standard_Boolean IGESConvGeom_GeomBuilder::IsTranslation () const
140 if (thepos.Form() == gp_Identity || thepos.Form() == gp_Translation)
141 return Standard_True;
142 // sinon, regarder de plus pres ...
144 Standard_Integer i,j;
145 for (i = 1; i <= 3; i ++)
146 for (j = 1; j <= 3; j ++) {
147 Standard_Real cons = (i == j ? 1. : 0.);
148 Standard_Real val = thepos.Value(i,j);
149 if (val > cons + epsa || val < cons - epsa) return Standard_False;
151 return Standard_True;
154 Standard_Boolean IGESConvGeom_GeomBuilder::IsZOnly () const
156 if (!IsTranslation()) return Standard_False;
157 gp_XYZ t = thepos.TranslationPart(); t.SetZ (0.0);
158 if (!t.IsEqual (gp_XYZ(0.,0.,0.),epsl) ) return Standard_False;
159 return Standard_True;
162 void IGESConvGeom_GeomBuilder::EvalXYZ
164 Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
167 thepos.Inverted().Transforms (X,Y,Z);
170 Handle(IGESGeom_TransformationMatrix)
171 IGESConvGeom_GeomBuilder::MakeTransformation (const Standard_Real unit) const
173 Handle(TColStd_HArray2OfReal) data = new TColStd_HArray2OfReal (1,3,1,4);
174 Standard_Integer i,j;
175 for (i = 1; i <= 3; i ++)
176 for (j = 1; j <= 4; j ++)
177 data->SetValue (i,j, (j == 4 ? thepos.Value(i,j)/unit : thepos.Value(i,j)) );
178 Handle(IGESGeom_TransformationMatrix) rs = new IGESGeom_TransformationMatrix;
180 if (thepos.IsNegative()) rs->SetFormNumber(1);