1 // Copyright (C) 2007-2010 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
23 #include <Standard_Stream.hxx>
25 #include <GEOMImpl_CircleDriver.hxx>
26 #include <GEOMImpl_ICircle.hxx>
27 #include <GEOMImpl_Types.hxx>
28 #include <GEOM_Function.hxx>
30 #include <BRepBuilderAPI_MakeEdge.hxx>
31 #include <BRep_Tool.hxx>
33 #include <TopoDS_Shape.hxx>
34 #include <TopoDS_Edge.hxx>
35 #include <TopoDS_Vertex.hxx>
39 #include <GC_MakeCircle.hxx>
40 #include <Geom_Circle.hxx>
42 #include <Standard_ConstructionError.hxx>
43 #include <Precision.hxx>
46 #include <gp_Circ.hxx>
48 //=======================================================================
51 //=======================================================================
52 const Standard_GUID& GEOMImpl_CircleDriver::GetID()
54 static Standard_GUID aCircleDriver("FF1BBB32-5D14-4df2-980B-3A668264EA16");
59 //=======================================================================
60 //function : GEOMImpl_CircleDriver
62 //=======================================================================
63 GEOMImpl_CircleDriver::GEOMImpl_CircleDriver()
67 //=======================================================================
70 //=======================================================================
71 Standard_Integer GEOMImpl_CircleDriver::Execute(TFunction_Logbook& log) const
73 if (Label().IsNull()) return 0;
74 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
76 GEOMImpl_ICircle aCI (aFunction);
77 Standard_Integer aType = aFunction->GetType();
81 if (aType == CIRCLE_PNT_VEC_R) {
83 gp_Pnt aP = gp::Origin();
84 Handle(GEOM_Function) aRefPoint = aCI.GetCenter();
85 if (!aRefPoint.IsNull()) {
86 TopoDS_Shape aShapePnt = aRefPoint->GetValue();
87 if (aShapePnt.ShapeType() != TopAbs_VERTEX) {
88 Standard_ConstructionError::Raise
89 ("Circle creation aborted: invalid center argument, must be a point");
91 aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
95 Handle(GEOM_Function) aRefVector = aCI.GetVector();
96 if (!aRefVector.IsNull()) {
97 TopoDS_Shape aShapeVec = aRefVector->GetValue();
98 if (aShapeVec.ShapeType() != TopAbs_EDGE) {
99 Standard_ConstructionError::Raise
100 ("Circle creation aborted: invalid vector argument, must be a vector or an edge");
102 TopoDS_Edge anE = TopoDS::Edge(aShapeVec);
103 TopoDS_Vertex V1, V2;
104 TopExp::Vertices(anE, V1, V2, Standard_True);
105 if (!V1.IsNull() && !V2.IsNull()) {
106 aV = gp_Vec(BRep_Tool::Pnt(V1), BRep_Tool::Pnt(V2));
107 if (aV.Magnitude() < gp::Resolution()) {
108 Standard_ConstructionError::Raise
109 ("Circle creation aborted: vector of zero length is given");
114 gp_Ax2 anAxes (aP, aV);
116 double anR = aCI.GetRadius();
117 char aMsg[] = "Circle creation aborted: radius value less than 1e-07 is not acceptable";
118 if (anR < Precision::Confusion())
119 Standard_ConstructionError::Raise(aMsg);
121 gp_Circ aCirc (anAxes, anR);
122 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
124 else if (aType == CIRCLE_CENTER_TWO_PNT) {
125 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
126 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
127 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
128 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
129 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
130 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
131 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
132 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
133 aShapePnt3.ShapeType() == TopAbs_VERTEX)
135 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
136 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
137 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
139 if (aP1.Distance(aP2) < gp::Resolution() ||
140 aP1.Distance(aP3) < gp::Resolution() ||
141 aP2.Distance(aP3) < gp::Resolution())
142 Standard_ConstructionError::Raise("Circle creation aborted: coincident points given");
144 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
145 Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
147 double x, y, z, x1, y1, z1, x2, y2, z2, dx, dy, dz, dx2, dy2, dz2, dx3, dy3, dz3, aRadius;
148 //Calculations for Radius
149 x = aP1.X(); y = aP1.Y(); z = aP1.Z();
150 x1 = aP2.X(); y1 = aP2.Y(); z1 = aP2.Z();
154 aRadius = sqrt(dx*dx + dy*dy + dz*dz);
155 //Calculations for Plane Vector
156 x2 = aP3.X(); y2 = aP3.Y(); z2 = aP3.Z();
157 dx2 = x2 - x; dy2 = y2 - y; dz2 = z2 - z;
158 dx3 = ((dy*dz2) - (dy2*dz))/100;
159 dy3 = ((dx2*dz) - (dx*dz2))/100;
160 dz3 = ((dx*dy2) - (dx2*dy))/100;
162 gp_Dir aDir ( dx3, dy3, dz3 );
164 gp_Ax2 anAxes (aP1, aDir);
165 gp_Circ aCirc (anAxes, aRadius);
166 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
169 else if (aType == CIRCLE_THREE_PNT) {
170 Handle(GEOM_Function) aRefPoint1 = aCI.GetPoint1();
171 Handle(GEOM_Function) aRefPoint2 = aCI.GetPoint2();
172 Handle(GEOM_Function) aRefPoint3 = aCI.GetPoint3();
173 TopoDS_Shape aShapePnt1 = aRefPoint1->GetValue();
174 TopoDS_Shape aShapePnt2 = aRefPoint2->GetValue();
175 TopoDS_Shape aShapePnt3 = aRefPoint3->GetValue();
176 if (aShapePnt1.ShapeType() == TopAbs_VERTEX &&
177 aShapePnt2.ShapeType() == TopAbs_VERTEX &&
178 aShapePnt3.ShapeType() == TopAbs_VERTEX) {
179 gp_Pnt aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt1));
180 gp_Pnt aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt2));
181 gp_Pnt aP3 = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt3));
182 if (aP1.Distance(aP2) < gp::Resolution() ||
183 aP1.Distance(aP3) < gp::Resolution() ||
184 aP2.Distance(aP3) < gp::Resolution())
185 Standard_ConstructionError::Raise("Circle creation aborted: coincident points given");
186 if (gp_Vec(aP1, aP2).IsParallel(gp_Vec(aP1, aP3), Precision::Angular()))
187 Standard_ConstructionError::Raise("Circle creation aborted: points lay on one line");
188 Handle(Geom_Circle) aCirc = GC_MakeCircle(aP1, aP2, aP3).Value();
189 aShape = BRepBuilderAPI_MakeEdge(aCirc).Edge();
195 if (aShape.IsNull()) return 0;
197 aFunction->SetValue(aShape);
199 log.SetTouched(Label());
205 //=======================================================================
206 //function : GEOMImpl_CircleDriver_Type_
208 //=======================================================================
209 Standard_EXPORT Handle_Standard_Type& GEOMImpl_CircleDriver_Type_()
212 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
213 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
214 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
215 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
216 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
217 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
220 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
221 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_CircleDriver",
222 sizeof(GEOMImpl_CircleDriver),
224 (Standard_Address)_Ancestors,
225 (Standard_Address)NULL);
230 //=======================================================================
231 //function : DownCast
233 //=======================================================================
234 const Handle(GEOMImpl_CircleDriver) Handle(GEOMImpl_CircleDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
236 Handle(GEOMImpl_CircleDriver) _anOtherObject;
238 if (!AnObject.IsNull()) {
239 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_CircleDriver))) {
240 _anOtherObject = Handle(GEOMImpl_CircleDriver)((Handle(GEOMImpl_CircleDriver)&)AnObject);
244 return _anOtherObject ;