1 // Copyright (C) 2005 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
2 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License.
9 // This library is distributed in the hope that it will be useful
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include <Standard_Stream.hxx>
22 #include <GEOMImpl_VectorDriver.hxx>
23 #include <GEOMImpl_IVector.hxx>
24 #include <GEOMImpl_Types.hxx>
25 #include <GEOM_Function.hxx>
27 #include <BRep_Tool.hxx>
28 #include <BRepBuilderAPI_MakeEdge.hxx>
32 #include <TopoDS_Shape.hxx>
33 #include <TopoDS_Vertex.hxx>
36 #include <Precision.hxx>
37 #include <Geom_Curve.hxx>
39 #include <TCollection_AsciiString.hxx>
40 #include <Standard_ConstructionError.hxx>
42 //=======================================================================
45 //=======================================================================
46 const Standard_GUID& GEOMImpl_VectorDriver::GetID()
48 static Standard_GUID aVectorDriver("FF1BBB04-5D14-4df2-980B-3A668264EA16");
53 //=======================================================================
54 //function : GEOMImpl_VectorDriver
56 //=======================================================================
57 GEOMImpl_VectorDriver::GEOMImpl_VectorDriver()
61 //=======================================================================
64 //=======================================================================
65 Standard_Integer GEOMImpl_VectorDriver::Execute(TFunction_Logbook& log) const
67 if (Label().IsNull()) return 0;
68 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
70 GEOMImpl_IVector aPI (aFunction);
71 Standard_Integer aType = aFunction->GetType();
72 if (aType != VECTOR_DX_DY_DZ && aType != VECTOR_TWO_PNT && aType != VECTOR_TANGENT_CURVE_PAR) return 0;
76 if (aType == VECTOR_DX_DY_DZ) {
77 gp_Pnt P1 = gp::Origin();
78 gp_Pnt P2 (aPI.GetDX(), aPI.GetDY(), aPI.GetDZ());
79 if (P1.Distance(P2) < Precision::Confusion()) {
80 TCollection_AsciiString aMsg ("Can not build vector with length, less than ");
81 aMsg += TCollection_AsciiString(Precision::Confusion());
82 Standard_ConstructionError::Raise(aMsg.ToCString());
84 aShape = BRepBuilderAPI_MakeEdge(P1, P2).Shape();
85 } else if (aType == VECTOR_TWO_PNT) {
86 Handle(GEOM_Function) aRefPnt1 = aPI.GetPoint1();
87 Handle(GEOM_Function) aRefPnt2 = aPI.GetPoint2();
88 TopoDS_Shape aShape1 = aRefPnt1->GetValue();
89 TopoDS_Shape aShape2 = aRefPnt2->GetValue();
90 if (aShape1.ShapeType() != TopAbs_VERTEX ||
91 aShape2.ShapeType() != TopAbs_VERTEX) return 0;
92 if (aShape1.IsSame(aShape2)) {
93 Standard_ConstructionError::Raise("The end points must be different");
95 TopoDS_Vertex V1 = TopoDS::Vertex(aShape1);
96 TopoDS_Vertex V2 = TopoDS::Vertex(aShape2);
97 gp_Pnt P1 = BRep_Tool::Pnt(V1);
98 gp_Pnt P2 = BRep_Tool::Pnt(V2);
99 if (P1.Distance(P2) < Precision::Confusion()) {
100 Standard_ConstructionError::Raise("The end points are too close");
102 aShape = BRepBuilderAPI_MakeEdge(V1, V2).Shape();
104 else if(aType == VECTOR_TANGENT_CURVE_PAR) {
105 Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
106 TopoDS_Shape aRefShape = aRefCurve->GetValue();
107 if (aRefShape.ShapeType() != TopAbs_EDGE) {
108 Standard_TypeMismatch::Raise
109 ("Tangent On Curve creation aborted : curve shape is not an edge");
111 Standard_Real aFParam =0., aLParam =0., aParam =0.;
112 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aRefShape), aFParam, aLParam);
113 if(aCurve.IsNull()) {
114 Standard_TypeMismatch::Raise
115 ("Tangent On Curve creation aborted : curve is null");
118 aParam = aFParam + (aLParam - aFParam) * aPI.GetParameter();
119 gp_Pnt aPoint1,aPoint2;
121 aCurve->D1(aParam,aPoint1,aVec);
122 if(aVec.Magnitude() < gp::Resolution())
123 Standard_TypeMismatch::Raise
124 ("Tangent On Curve creation aborted : invalid value of tangent");
125 aPoint2.SetXYZ(aPoint1.XYZ() + aVec.XYZ());
126 BRepBuilderAPI_MakeEdge aBuilder(aPoint1,aPoint2);
127 if(aBuilder.IsDone())
128 aShape = aBuilder.Shape();
131 if (aShape.IsNull()) return 0;
133 aFunction->SetValue(aShape);
135 log.SetTouched(Label());
141 //=======================================================================
142 //function : GEOMImpl_VectorDriver_Type_
144 //=======================================================================
145 Standard_EXPORT Handle_Standard_Type& GEOMImpl_VectorDriver_Type_()
148 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
149 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
150 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
151 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
152 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
153 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
156 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
157 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_VectorDriver",
158 sizeof(GEOMImpl_VectorDriver),
160 (Standard_Address)_Ancestors,
161 (Standard_Address)NULL);
166 //=======================================================================
167 //function : DownCast
169 //=======================================================================
170 const Handle(GEOMImpl_VectorDriver) Handle(GEOMImpl_VectorDriver)::DownCast
171 (const Handle(Standard_Transient)& AnObject)
173 Handle(GEOMImpl_VectorDriver) _anOtherObject;
175 if (!AnObject.IsNull()) {
176 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_VectorDriver))) {
177 _anOtherObject = Handle(GEOMImpl_VectorDriver)((Handle(GEOMImpl_VectorDriver)&)AnObject);
181 return _anOtherObject ;