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_CircleDriver.hxx>
25 #include <GEOMImpl_ICircle.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_MakeCircle.hxx>
39 #include <Geom_Circle.hxx>
41 #include <Standard_ConstructionError.hxx>
42 #include <Precision.hxx>
45 #include <gp_Circ.hxx>
47 //=======================================================================
50 //=======================================================================
51 const Standard_GUID& GEOMImpl_CircleDriver::GetID()
53 static Standard_GUID aCircleDriver("FF1BBB32-5D14-4df2-980B-3A668264EA16");
58 //=======================================================================
59 //function : GEOMImpl_CircleDriver
61 //=======================================================================
62 GEOMImpl_CircleDriver::GEOMImpl_CircleDriver()
66 //=======================================================================
69 //=======================================================================
70 Standard_Integer GEOMImpl_CircleDriver::Execute(TFunction_Logbook& log) const
72 if (Label().IsNull()) return 0;
73 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
75 GEOMImpl_ICircle aCI (aFunction);
76 Standard_Integer aType = aFunction->GetType();
80 if (aType == CIRCLE_PNT_VEC_R) {
82 gp_Pnt aP = gp::Origin();
83 Handle(GEOM_Function) aRefPoint = aCI.GetCenter();
84 if (!aRefPoint.IsNull()) {
85 TopoDS_Shape aShapePnt = aRefPoint->GetValue();
86 if (aShapePnt.ShapeType() != TopAbs_VERTEX) {
87 Standard_ConstructionError::Raise
88 ("Circle creation aborted: invalid center argument, must be a point");
90 aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
94 Handle(GEOM_Function) aRefVector = aCI.GetVector();
95 if (!aRefVector.IsNull()) {
96 TopoDS_Shape aShapeVec = aRefVector->GetValue();
97 if (aShapeVec.ShapeType() != TopAbs_EDGE) {
98 Standard_ConstructionError::Raise
99 ("Circle creation aborted: invalid vector argument, must be a vector or an edge");
101 TopoDS_Edge anE = TopoDS::Edge(aShapeVec);
102 TopoDS_Vertex V1, V2;
103 TopExp::Vertices(anE, V1, V2, Standard_True);
104 if (!V1.IsNull() && !V2.IsNull()) {
105 aV = gp_Vec(BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
106 if (aV.Magnitude() < gp::Resolution()) {
107 Standard_ConstructionError::Raise
108 ("Circle creation aborted: vector of zero length is given");
113 gp_Ax2 anAxes (aP, aV);
115 double anR = aCI.GetRadius();
116 char aMsg[] = "Circle creation aborted: radius value less than 1e-07 is not acceptable";
117 if (anR < Precision::Confusion())
118 Standard_ConstructionError::Raise(aMsg);
120 gp_Circ aCirc (anAxes, anR);
121 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
123 else if (aType == CIRCLE_CENTER_TWO_PNT) {
124 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
125 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
126 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
127 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
128 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
129 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
130 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
131 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
132 aShapePnt3.ShapeType() == TopAbs_VERTEX)
134 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
135 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
136 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
138 if (aP1.Distance(aP2) < gp::Resolution() ||
139 aP1.Distance(aP3) < gp::Resolution() ||
140 aP2.Distance(aP3) < gp::Resolution())
141 Standard_ConstructionError::Raise("Circle creation aborted: coincident points given");
143 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
144 Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
146 double x, y, z, x1, y1, z1, x2, y2, z2, dx, dy, dz, dx2, dy2, dz2, dx3, dy3, dz3, aRadius;
147 //Calculations for Radius
148 x = aP1.X(); y = aP1.Y(); z = aP1.Z();
149 x1 = aP2.X(); y1 = aP2.Y(); z1 = aP2.Z();
153 aRadius = sqrt(dx*dx + dy*dy + dz*dz);
154 //Calculations for Plane Vector
155 x2 = aP3.X(); y2 = aP3.Y(); z2 = aP3.Z();
156 dx2 = x2 - x; dy2 = y2 - y; dz2 = z2 - z;
157 dx3 = ((dy*dz2) - (dy2*dz))/100;
158 dy3 = ((dx2*dz) - (dx*dz2))/100;
159 dz3 = ((dx*dy2) - (dx2*dy))/100;
161 gp_Dir aDir ( dx3, dy3, dz3 );
163 gp_Ax2 anAxes (aP1, aDir);
164 gp_Circ aCirc (anAxes, aRadius);
165 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
168 else if (aType == CIRCLE_THREE_PNT) {
169 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
170 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
171 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
172 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
173 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
174 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
175 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
176 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
177 aShapePnt3.ShapeType() == TopAbs_VERTEX) {
178 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
179 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
180 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
181 if (aP1.Distance(aP2) < gp::Resolution() ||
182 aP1.Distance(aP3) < gp::Resolution() ||
183 aP2.Distance(aP3) < gp::Resolution())
184 Standard_ConstructionError::Raise("Circle creation aborted: coincident points given");
185 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
186 Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
187 Handle(Geom_Circle) aCirc = GC_MakeCircle(aP1, aP2, aP3).Value();
188 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
194 if (aShape.IsNull()) return 0;
196 aFunction->SetValue(aShape);
198 log.SetTouched(Label());
204 //=======================================================================
205 //function : GEOMImpl_CircleDriver_Type_
207 //=======================================================================
208 Standard_EXPORT Handle_Standard_Type& GEOMImpl_CircleDriver_Type_()
211 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
212 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
213 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
214 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
215 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
216 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
219 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
220 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_CircleDriver",
221 sizeof(GEOMImpl_CircleDriver),
223 (Standard_Address)_Ancestors,
224 (Standard_Address)NULL);
229 //=======================================================================
230 //function : DownCast
232 //=======================================================================
233 const Handle(GEOMImpl_CircleDriver) Handle(GEOMImpl_CircleDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
235 Handle(GEOMImpl_CircleDriver) _anOtherObject;
237 if (!AnObject.IsNull()) {
238 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_CircleDriver))) {
239 _anOtherObject = Handle(GEOMImpl_CircleDriver)((Handle(GEOMImpl_CircleDriver)&)AnObject);
243 return _anOtherObject ;