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_PointDriver.hxx>
25 #include <GEOMImpl_IPoint.hxx>
26 #include <GEOMImpl_Types.hxx>
27 #include <GEOM_Function.hxx>
29 #include <BRep_Tool.hxx>
30 #include <BRepBuilderAPI_MakeVertex.hxx>
31 #include <BRepExtrema_DistShapeShape.hxx>
32 #include <Precision.hxx>
35 #include <TopoDS_Edge.hxx>
36 #include <TopoDS_Shape.hxx>
37 #include <TopoDS_Vertex.hxx>
39 #include <Geom_Curve.hxx>
40 #include <Geom_Surface.hxx>
42 #include <TopoDS_Face.hxx>
43 #include <ShapeAnalysis.hxx>
46 //=======================================================================
49 //=======================================================================
50 const Standard_GUID& GEOMImpl_PointDriver::GetID()
52 static Standard_GUID aPointDriver("FF1BBB02-5D14-4df2-980B-3A668264EA16");
57 //=======================================================================
58 //function : GEOMImpl_PointDriver
60 //=======================================================================
61 GEOMImpl_PointDriver::GEOMImpl_PointDriver()
65 //=======================================================================
66 //function : getExtremaSolution
67 //purpose : local function
68 //=======================================================================
69 static Standard_Boolean getExtremaSolution
70 (GEOMImpl_IPoint& thePI,
71 TopoDS_Shape& theRefShape,
74 gp_Pnt anInitPnt( thePI.GetX(), thePI.GetY(), thePI.GetZ() );
75 BRepBuilderAPI_MakeVertex mkVertex (anInitPnt);
76 TopoDS_Vertex anInitV = TopoDS::Vertex(mkVertex.Shape());
78 BRepExtrema_DistShapeShape anExt( anInitV, theRefShape );
79 if ( !anExt.IsDone() || anExt.NbSolution() < 1 )
80 return Standard_False;
81 thePnt = anExt.PointOnShape2(1);
82 Standard_Real aMinDist2 = anInitPnt.SquareDistance( thePnt );
83 for ( Standard_Integer j = 2, jn = anExt.NbSolution(); j <= jn; j++ )
85 gp_Pnt aPnt = anExt.PointOnShape2(j);
86 Standard_Real aDist2 = anInitPnt.SquareDistance( aPnt );
87 if ( aDist2 > aMinDist2)
95 //=======================================================================
98 //=======================================================================
99 Standard_Integer GEOMImpl_PointDriver::Execute(TFunction_Logbook& log) const
101 if (Label().IsNull()) return 0;
102 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
104 GEOMImpl_IPoint aPI (aFunction);
105 Standard_Integer aType = aFunction->GetType();
109 if (aType == POINT_XYZ) {
110 aPnt = gp_Pnt(aPI.GetX(), aPI.GetY(), aPI.GetZ());
113 else if (aType == POINT_XYZ_REF) {
115 Handle(GEOM_Function) aRefPoint = aPI.GetRef();
116 TopoDS_Shape aRefShape = aRefPoint->GetValue();
117 if (aRefShape.ShapeType() != TopAbs_VERTEX) {
118 Standard_TypeMismatch::Raise
119 ("Point creation aborted : referenced shape is not a vertex");
121 gp_Pnt P = BRep_Tool::Pnt(TopoDS::Vertex(aRefShape));
122 aPnt = gp_Pnt(P.X() + aPI.GetX(), P.Y() + aPI.GetY(), P.Z() + aPI.GetZ());
125 else if (aType == POINT_CURVE_PAR) {
126 Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
127 TopoDS_Shape aRefShape = aRefCurve->GetValue();
128 if (aRefShape.ShapeType() != TopAbs_EDGE) {
129 Standard_TypeMismatch::Raise
130 ("Point On Curve creation aborted : curve shape is not an edge");
132 Standard_Real aFP, aLP, aP;
133 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aRefShape), aFP, aLP);
134 aP = aFP + (aLP - aFP) * aPI.GetParameter();
135 aPnt = aCurve->Value(aP);
137 else if (aType == POINT_CURVE_COORD) {
138 Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
139 TopoDS_Shape aRefShape = aRefCurve->GetValue();
140 if (aRefShape.ShapeType() != TopAbs_EDGE) {
141 Standard_TypeMismatch::Raise
142 ("Point On Curve creation aborted : curve shape is not an edge");
144 if (!getExtremaSolution( aPI, aRefShape, aPnt ) ) {
145 Standard_ConstructionError::Raise
146 ("Point On Curve creation aborted : cannot project point");
149 else if (aType == POINT_SURFACE_PAR) {
150 Handle(GEOM_Function) aRefCurve = aPI.GetSurface();
151 TopoDS_Shape aRefShape = aRefCurve->GetValue();
152 if (aRefShape.ShapeType() != TopAbs_FACE) {
153 Standard_TypeMismatch::Raise
154 ("Point On Surface creation aborted : surface shape is not a face");
156 TopoDS_Face F = TopoDS::Face(aRefShape);
157 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(F);
158 Standard_Real U1,U2,V1,V2;
159 //aSurf->Bounds(U1,U2,V1,V2);
160 ShapeAnalysis::GetFaceUVBounds(F,U1,U2,V1,V2);
161 Standard_Real U = U1 + (U2-U1) * aPI.GetParameter();
162 Standard_Real V = V1 + (V2-V1) * aPI.GetParameter2();
163 aPnt = aSurf->Value(U,V);
165 else if (aType == POINT_SURFACE_COORD) {
166 Handle(GEOM_Function) aRefCurve = aPI.GetSurface();
167 TopoDS_Shape aRefShape = aRefCurve->GetValue();
168 if (aRefShape.ShapeType() != TopAbs_FACE) {
169 Standard_TypeMismatch::Raise
170 ("Point On Surface creation aborted : surface shape is not a face");
172 if (!getExtremaSolution( aPI, aRefShape, aPnt ) ) {
173 Standard_ConstructionError::Raise
174 ("Point On Surface creation aborted : cannot project point");
177 else if (aType == POINT_LINES_INTERSECTION) {
178 Handle(GEOM_Function) aRef1 = aPI.GetLine1();
179 Handle(GEOM_Function) aRef2 = aPI.GetLine2();
181 TopoDS_Shape aRefShape1 = aRef1->GetValue();
182 TopoDS_Shape aRefShape2 = aRef2->GetValue();
184 if (aRefShape1.ShapeType() != TopAbs_EDGE || aRefShape2.ShapeType() != TopAbs_EDGE ) {
185 Standard_TypeMismatch::Raise
186 ("Creation Point On Lines Intersection Aborted : Line shape is not an edge");
188 //Calculate Lines Intersection Point
189 BRepExtrema_DistShapeShape dst (aRefShape1, aRefShape2);
193 for (int i = 1; i <= dst.NbSolution(); i++) {
194 P1 = dst.PointOnShape1(i);
195 P2 = dst.PointOnShape2(i);
196 Standard_Real Dist = P1.Distance(P2);
197 if ( Dist <= Precision::Confusion() )
200 Standard_TypeMismatch::Raise ("Lines not have an Intersection Point");
208 BRepBuilderAPI_MakeVertex mkVertex (aPnt);
209 TopoDS_Shape aShape = mkVertex.Shape();
210 aShape.Infinite(Standard_True);
211 aFunction->SetValue(aShape);
213 log.SetTouched(Label());
219 //=======================================================================
220 //function : GEOMImpl_PointDriver_Type_
222 //=======================================================================
223 Standard_EXPORT Handle_Standard_Type& GEOMImpl_PointDriver_Type_()
226 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
227 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
228 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
229 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
230 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
231 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
234 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
235 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_PointDriver",
236 sizeof(GEOMImpl_PointDriver),
238 (Standard_Address)_Ancestors,
239 (Standard_Address)NULL);
244 //=======================================================================
245 //function : DownCast
247 //=======================================================================
249 const Handle(GEOMImpl_PointDriver) Handle(GEOMImpl_PointDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
251 Handle(GEOMImpl_PointDriver) _anOtherObject;
253 if (!AnObject.IsNull()) {
254 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_PointDriver))) {
255 _anOtherObject = Handle(GEOMImpl_PointDriver)((Handle(GEOMImpl_PointDriver)&)AnObject);
259 return _anOtherObject ;