1 // Copyright (C) 2007-2011 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>
35 #include <TopoDS_Edge.hxx>
36 #include <TopoDS_Shape.hxx>
37 #include <TopoDS_Vertex.hxx>
40 #include <Precision.hxx>
41 #include <Geom_Curve.hxx>
43 #include <TCollection_AsciiString.hxx>
44 #include <Standard_ConstructionError.hxx>
46 //=======================================================================
49 //=======================================================================
50 const Standard_GUID& GEOMImpl_VectorDriver::GetID()
52 static Standard_GUID aVectorDriver("FF1BBB04-5D14-4df2-980B-3A668264EA16");
57 //=======================================================================
58 //function : GEOMImpl_VectorDriver
60 //=======================================================================
61 GEOMImpl_VectorDriver::GEOMImpl_VectorDriver()
65 //=======================================================================
68 //=======================================================================
69 Standard_Integer GEOMImpl_VectorDriver::Execute(TFunction_Logbook& log) const
71 if (Label().IsNull()) return 0;
72 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
74 GEOMImpl_IVector aPI (aFunction);
75 Standard_Integer aType = aFunction->GetType();
76 if (aType != VECTOR_DX_DY_DZ && aType != VECTOR_TWO_PNT &&
77 aType != VECTOR_TANGENT_CURVE_PAR && aType != VECTOR_REVERSE) return 0;
81 if (aType == VECTOR_DX_DY_DZ) {
82 gp_Pnt P1 = gp::Origin();
83 gp_Pnt P2 (aPI.GetDX(), aPI.GetDY(), aPI.GetDZ());
84 if (P1.Distance(P2) < Precision::Confusion()) {
85 TCollection_AsciiString aMsg ("Can not build vector with length, less than ");
86 aMsg += TCollection_AsciiString(Precision::Confusion());
87 Standard_ConstructionError::Raise(aMsg.ToCString());
89 aShape = BRepBuilderAPI_MakeEdge(P1, P2).Shape();
91 else if (aType == VECTOR_TWO_PNT) {
92 Handle(GEOM_Function) aRefPnt1 = aPI.GetPoint1();
93 Handle(GEOM_Function) aRefPnt2 = aPI.GetPoint2();
94 TopoDS_Shape aShape1 = aRefPnt1->GetValue();
95 TopoDS_Shape aShape2 = aRefPnt2->GetValue();
96 if (aShape1.ShapeType() != TopAbs_VERTEX ||
97 aShape2.ShapeType() != TopAbs_VERTEX) return 0;
98 if (aShape1.IsSame(aShape2)) {
99 Standard_ConstructionError::Raise("The end points must be different");
101 TopoDS_Vertex V1 = TopoDS::Vertex(aShape1);
102 TopoDS_Vertex V2 = TopoDS::Vertex(aShape2);
103 gp_Pnt P1 = BRep_Tool::Pnt(V1);
104 gp_Pnt P2 = BRep_Tool::Pnt(V2);
105 if (P1.Distance(P2) < Precision::Confusion()) {
106 Standard_ConstructionError::Raise("The end points are too close");
108 aShape = BRepBuilderAPI_MakeEdge(V1, V2).Shape();
110 else if (aType == VECTOR_TANGENT_CURVE_PAR) {
111 Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
112 TopoDS_Shape aRefShape = aRefCurve->GetValue();
113 if (aRefShape.ShapeType() != TopAbs_EDGE) {
114 Standard_TypeMismatch::Raise
115 ("Tangent On Curve creation aborted : curve shape is not an edge");
117 Standard_Real aFParam =0., aLParam =0., aParam =0.;
118 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aRefShape), aFParam, aLParam);
119 if(aCurve.IsNull()) {
120 Standard_TypeMismatch::Raise
121 ("Tangent On Curve creation aborted : curve is null");
124 aParam = aFParam + (aLParam - aFParam) * aPI.GetParameter();
125 gp_Pnt aPoint1,aPoint2;
127 aCurve->D1(aParam,aPoint1,aVec);
128 if(aVec.Magnitude() < gp::Resolution())
129 Standard_TypeMismatch::Raise
130 ("Tangent On Curve creation aborted : invalid value of tangent");
131 aPoint2.SetXYZ(aPoint1.XYZ() + aVec.XYZ());
132 BRepBuilderAPI_MakeEdge aBuilder(aPoint1,aPoint2);
133 if(aBuilder.IsDone())
134 aShape = aBuilder.Shape();
136 else if (aType == VECTOR_REVERSE) {
137 Handle(GEOM_Function) aRefVec = aPI.GetCurve();
138 TopoDS_Shape aRefShape = aRefVec->GetValue();
139 if (aRefShape.ShapeType() != TopAbs_EDGE) {
140 Standard_TypeMismatch::Raise
141 ("Reversed vector creation aborted : vector shape is not an edge");
143 TopoDS_Edge anE = TopoDS::Edge(aRefShape);
144 TopoDS_Vertex V1, V2;
145 TopExp::Vertices(anE, V1, V2, Standard_True);
146 aShape = BRepBuilderAPI_MakeEdge(V2, V1).Shape();
149 if (aShape.IsNull()) return 0;
151 aFunction->SetValue(aShape);
153 log.SetTouched(Label());
159 //=======================================================================
160 //function : GEOMImpl_VectorDriver_Type_
162 //=======================================================================
163 Standard_EXPORT Handle_Standard_Type& GEOMImpl_VectorDriver_Type_()
166 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
167 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
168 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
169 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
170 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
171 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
174 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
175 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_VectorDriver",
176 sizeof(GEOMImpl_VectorDriver),
178 (Standard_Address)_Ancestors,
179 (Standard_Address)NULL);
184 //=======================================================================
185 //function : DownCast
187 //=======================================================================
188 const Handle(GEOMImpl_VectorDriver) Handle(GEOMImpl_VectorDriver)::DownCast
189 (const Handle(Standard_Transient)& AnObject)
191 Handle(GEOMImpl_VectorDriver) _anOtherObject;
193 if (!AnObject.IsNull()) {
194 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_VectorDriver))) {
195 _anOtherObject = Handle(GEOMImpl_VectorDriver)((Handle(GEOMImpl_VectorDriver)&)AnObject);
199 return _anOtherObject;