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
21 #include <Standard_Stream.hxx>
23 #include <GEOMImpl_ArcDriver.hxx>
24 #include <GEOMImpl_IArc.hxx>
25 #include <GEOMImpl_Types.hxx>
26 #include <GEOM_Function.hxx>
28 #include <BRepBuilderAPI_MakeEdge.hxx>
29 #include <BRep_Tool.hxx>
31 #include <TopoDS_Shape.hxx>
32 #include <TopoDS_Edge.hxx>
33 #include <TopoDS_Vertex.hxx>
37 #include <GC_MakeArcOfCircle.hxx>
38 #include <GC_MakeCircle.hxx>
39 #include <Standard_ConstructionError.hxx>
40 #include <Precision.hxx>
43 #include <gp_Circ.hxx>
44 #include <Geom_Circle.hxx>
46 #include "utilities.h"
48 //=======================================================================
51 //=======================================================================
52 const Standard_GUID& GEOMImpl_ArcDriver::GetID()
54 static Standard_GUID aArcDriver("FF1BBB35-5D14-4df2-980B-3A668264EA16");
59 //=======================================================================
60 //function : GEOMImpl_ArcDriver
62 //=======================================================================
63 GEOMImpl_ArcDriver::GEOMImpl_ArcDriver()
67 //=======================================================================
70 //=======================================================================
71 Standard_Integer GEOMImpl_ArcDriver::Execute(TFunction_Logbook& log) const
73 if (Label().IsNull()) return 0;
74 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
76 GEOMImpl_IArc aCI (aFunction);
77 Standard_Integer aType = aFunction->GetType();
80 if ((aType == CIRC_ARC_THREE_PNT) || (aType == CIRC_ARC_CENTER))
82 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
83 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
84 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
86 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
87 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
88 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
90 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
91 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
92 aShapePnt3.ShapeType() == TopAbs_VERTEX)
94 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
95 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
96 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
98 if (aP1.Distance(aP2) < gp::Resolution() ||
99 aP1.Distance(aP3) < gp::Resolution() ||
100 aP2.Distance(aP3) < gp::Resolution())
101 Standard_ConstructionError::Raise("Arc creation aborted: coincident points given");
103 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
104 Standard_ConstructionError::Raise("Arc creation aborted: points lay on one line");
106 if (aType == CIRC_ARC_THREE_PNT)
108 GC_MakeArcOfCircle arc (aP1, aP2, aP3);
109 aShape = BRepBuilderAPI_MakeEdge(arc).Edge();
111 else // CIRC_ARC_CENTER
113 Standard_Boolean sense = aCI.GetSense();
115 Standard_Real aRad = aP1.Distance(aP2);
116 gp_Vec aV1 (aP1, aP2);
117 gp_Vec aV2 (aP1, aP3);
118 gp_Vec aN = aV1 ^ aV2;
123 GC_MakeCircle circ (aP1, aN, aRad);
124 Handle(Geom_Circle) aGeomCirc = circ.Value();
126 GC_MakeArcOfCircle arc (aGeomCirc->Circ(), aP2, aP3, Standard_True);
127 aShape = BRepBuilderAPI_MakeEdge(arc).Edge();
133 if (aShape.IsNull()) return 0;
135 aFunction->SetValue(aShape);
137 log.SetTouched(Label());
142 //=======================================================================
143 //function : GEOMImpl_ArcDriver_Type_
145 //=======================================================================
146 Standard_EXPORT Handle_Standard_Type& GEOMImpl_ArcDriver_Type_()
149 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
150 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
151 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
152 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
153 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
154 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
157 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
158 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_ArcDriver",
159 sizeof(GEOMImpl_ArcDriver),
161 (Standard_Address)_Ancestors,
162 (Standard_Address)NULL);
167 //=======================================================================
168 //function : DownCast
170 //=======================================================================
171 const Handle(GEOMImpl_ArcDriver) Handle(GEOMImpl_ArcDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
173 Handle(GEOMImpl_ArcDriver) _anOtherObject;
175 if (!AnObject.IsNull()) {
176 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_ArcDriver))) {
177 _anOtherObject = Handle(GEOMImpl_ArcDriver)((Handle(GEOMImpl_ArcDriver)&)AnObject);
181 return _anOtherObject ;