1 // Copyright (C) 2007-2008 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_ArcDriver.hxx>
25 #include <GEOMImpl_IArc.hxx>
26 #include <GEOMImpl_Types.hxx>
27 #include <GEOM_Function.hxx>
29 #include <BRepBuilderAPI_MakeEdge.hxx>
30 #include <BRep_Tool.hxx>
32 #include <TopoDS_Shape.hxx>
33 #include <TopoDS_Edge.hxx>
34 #include <TopoDS_Vertex.hxx>
38 #include <GC_MakeArcOfCircle.hxx>
39 #include <GC_MakeCircle.hxx>
40 #include <Standard_ConstructionError.hxx>
41 #include <Precision.hxx>
44 #include <gp_Circ.hxx>
45 #include <Geom_Circle.hxx>
47 #include "utilities.h"
49 //=======================================================================
52 //=======================================================================
53 const Standard_GUID& GEOMImpl_ArcDriver::GetID()
55 static Standard_GUID aArcDriver("FF1BBB35-5D14-4df2-980B-3A668264EA16");
60 //=======================================================================
61 //function : GEOMImpl_ArcDriver
63 //=======================================================================
64 GEOMImpl_ArcDriver::GEOMImpl_ArcDriver()
68 //=======================================================================
71 //=======================================================================
72 Standard_Integer GEOMImpl_ArcDriver::Execute(TFunction_Logbook& log) const
74 if (Label().IsNull()) return 0;
75 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
77 GEOMImpl_IArc aCI (aFunction);
78 Standard_Integer aType = aFunction->GetType();
81 if ((aType == CIRC_ARC_THREE_PNT) || (aType == CIRC_ARC_CENTER))
83 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
84 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
85 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
87 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
88 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
89 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
91 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
92 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
93 aShapePnt3.ShapeType() == TopAbs_VERTEX)
95 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
96 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
97 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
99 if (aP1.Distance(aP2) < gp::Resolution() ||
100 aP1.Distance(aP3) < gp::Resolution() ||
101 aP2.Distance(aP3) < gp::Resolution())
102 Standard_ConstructionError::Raise("Arc creation aborted: coincident points given");
104 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
105 Standard_ConstructionError::Raise("Arc creation aborted: points lay on one line");
107 if (aType == CIRC_ARC_THREE_PNT)
109 GC_MakeArcOfCircle arc (aP1, aP2, aP3);
110 aShape = BRepBuilderAPI_MakeEdge(arc).Edge();
112 else // CIRC_ARC_CENTER
114 Standard_Boolean sense = aCI.GetSense();
116 Standard_Real aRad = aP1.Distance(aP2);
117 gp_Vec aV1 (aP1, aP2);
118 gp_Vec aV2 (aP1, aP3);
119 gp_Vec aN = aV1 ^ aV2;
124 GC_MakeCircle circ (aP1, aN, aRad);
125 Handle(Geom_Circle) aGeomCirc = circ.Value();
127 GC_MakeArcOfCircle arc (aGeomCirc->Circ(), aP2, aP3, Standard_True);
128 aShape = BRepBuilderAPI_MakeEdge(arc).Edge();
134 if (aShape.IsNull()) return 0;
136 aFunction->SetValue(aShape);
138 log.SetTouched(Label());
143 //=======================================================================
144 //function : GEOMImpl_ArcDriver_Type_
146 //=======================================================================
147 Standard_EXPORT Handle_Standard_Type& GEOMImpl_ArcDriver_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_ArcDriver",
160 sizeof(GEOMImpl_ArcDriver),
162 (Standard_Address)_Ancestors,
163 (Standard_Address)NULL);
168 //=======================================================================
169 //function : DownCast
171 //=======================================================================
172 const Handle(GEOMImpl_ArcDriver) Handle(GEOMImpl_ArcDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
174 Handle(GEOMImpl_ArcDriver) _anOtherObject;
176 if (!AnObject.IsNull()) {
177 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_ArcDriver))) {
178 _anOtherObject = Handle(GEOMImpl_ArcDriver)((Handle(GEOMImpl_ArcDriver)&)AnObject);
182 return _anOtherObject ;