1 // Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 #include <Standard_Stream.hxx>
24 #include <GEOMImpl_VectorDriver.hxx>
25 #include <GEOMImpl_IVector.hxx>
26 #include <GEOMImpl_Types.hxx>
27 #include <GEOM_Function.hxx>
29 #include <BRep_Tool.hxx>
30 #include <BRepBuilderAPI_MakeEdge.hxx>
34 #include <TopoDS_Shape.hxx>
35 #include <TopoDS_Vertex.hxx>
38 #include <Precision.hxx>
39 #include <Geom_Curve.hxx>
41 #include <TCollection_AsciiString.hxx>
42 #include <Standard_ConstructionError.hxx>
44 //=======================================================================
47 //=======================================================================
48 const Standard_GUID& GEOMImpl_VectorDriver::GetID()
50 static Standard_GUID aVectorDriver("FF1BBB04-5D14-4df2-980B-3A668264EA16");
55 //=======================================================================
56 //function : GEOMImpl_VectorDriver
58 //=======================================================================
59 GEOMImpl_VectorDriver::GEOMImpl_VectorDriver()
63 //=======================================================================
66 //=======================================================================
67 Standard_Integer GEOMImpl_VectorDriver::Execute(TFunction_Logbook& log) const
69 if (Label().IsNull()) return 0;
70 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
72 GEOMImpl_IVector aPI (aFunction);
73 Standard_Integer aType = aFunction->GetType();
74 if (aType != VECTOR_DX_DY_DZ && aType != VECTOR_TWO_PNT && aType != VECTOR_TANGENT_CURVE_PAR) return 0;
78 if (aType == VECTOR_DX_DY_DZ) {
79 gp_Pnt P1 = gp::Origin();
80 gp_Pnt P2 (aPI.GetDX(), aPI.GetDY(), aPI.GetDZ());
81 if (P1.Distance(P2) < Precision::Confusion()) {
82 TCollection_AsciiString aMsg ("Can not build vector with length, less than ");
83 aMsg += TCollection_AsciiString(Precision::Confusion());
84 Standard_ConstructionError::Raise(aMsg.ToCString());
86 aShape = BRepBuilderAPI_MakeEdge(P1, P2).Shape();
87 } else if (aType == VECTOR_TWO_PNT) {
88 Handle(GEOM_Function) aRefPnt1 = aPI.GetPoint1();
89 Handle(GEOM_Function) aRefPnt2 = aPI.GetPoint2();
90 TopoDS_Shape aShape1 = aRefPnt1->GetValue();
91 TopoDS_Shape aShape2 = aRefPnt2->GetValue();
92 if (aShape1.ShapeType() != TopAbs_VERTEX ||
93 aShape2.ShapeType() != TopAbs_VERTEX) return 0;
94 if (aShape1.IsSame(aShape2)) {
95 Standard_ConstructionError::Raise("The end points must be different");
97 TopoDS_Vertex V1 = TopoDS::Vertex(aShape1);
98 TopoDS_Vertex V2 = TopoDS::Vertex(aShape2);
99 gp_Pnt P1 = BRep_Tool::Pnt(V1);
100 gp_Pnt P2 = BRep_Tool::Pnt(V2);
101 if (P1.Distance(P2) < Precision::Confusion()) {
102 Standard_ConstructionError::Raise("The end points are too close");
104 aShape = BRepBuilderAPI_MakeEdge(V1, V2).Shape();
106 else if(aType == VECTOR_TANGENT_CURVE_PAR) {
107 Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
108 TopoDS_Shape aRefShape = aRefCurve->GetValue();
109 if (aRefShape.ShapeType() != TopAbs_EDGE) {
110 Standard_TypeMismatch::Raise
111 ("Tangent On Curve creation aborted : curve shape is not an edge");
113 Standard_Real aFParam =0., aLParam =0., aParam =0.;
114 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aRefShape), aFParam, aLParam);
115 if(aCurve.IsNull()) {
116 Standard_TypeMismatch::Raise
117 ("Tangent On Curve creation aborted : curve is null");
120 aParam = aFParam + (aLParam - aFParam) * aPI.GetParameter();
121 gp_Pnt aPoint1,aPoint2;
123 aCurve->D1(aParam,aPoint1,aVec);
124 if(aVec.Magnitude() < gp::Resolution())
125 Standard_TypeMismatch::Raise
126 ("Tangent On Curve creation aborted : invalid value of tangent");
127 aPoint2.SetXYZ(aPoint1.XYZ() + aVec.XYZ());
128 BRepBuilderAPI_MakeEdge aBuilder(aPoint1,aPoint2);
129 if(aBuilder.IsDone())
130 aShape = aBuilder.Shape();
133 if (aShape.IsNull()) return 0;
135 aFunction->SetValue(aShape);
137 log.SetTouched(Label());
143 //=======================================================================
144 //function : GEOMImpl_VectorDriver_Type_
146 //=======================================================================
147 Standard_EXPORT Handle_Standard_Type& GEOMImpl_VectorDriver_Type_()
150 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
151 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
152 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
153 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
154 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
155 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
158 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
159 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_VectorDriver",
160 sizeof(GEOMImpl_VectorDriver),
162 (Standard_Address)_Ancestors,
163 (Standard_Address)NULL);
168 //=======================================================================
169 //function : DownCast
171 //=======================================================================
172 const Handle(GEOMImpl_VectorDriver) Handle(GEOMImpl_VectorDriver)::DownCast
173 (const Handle(Standard_Transient)& AnObject)
175 Handle(GEOMImpl_VectorDriver) _anOtherObject;
177 if (!AnObject.IsNull()) {
178 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_VectorDriver))) {
179 _anOtherObject = Handle(GEOMImpl_VectorDriver)((Handle(GEOMImpl_VectorDriver)&)AnObject);
183 return _anOtherObject ;