1 // Copyright (C) 2007-2013 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_MeasureDriver.hxx>
26 #include <GEOMImpl_IMeasure.hxx>
27 #include <GEOMImpl_Types.hxx>
29 #include <GEOM_Function.hxx>
31 #include <GEOMUtils.hxx>
33 #include <BRep_Tool.hxx>
34 #include <BRepTools.hxx>
35 #include <BRepGProp.hxx>
36 #include <BRepBuilderAPI_Copy.hxx>
37 #include <BRepBuilderAPI_MakeEdge.hxx>
38 #include <BRepBuilderAPI_MakeVertex.hxx>
39 #include <BRepPrimAPI_MakeBox.hxx>
43 #include <TopoDS_Shape.hxx>
44 #include <TopoDS_Edge.hxx>
45 #include <TopoDS_Wire.hxx>
47 #include <TopExp_Explorer.hxx>
48 #include <TopTools_IndexedMapOfShape.hxx>
50 #include <GProp_GProps.hxx>
51 #include <GeomLProp_SLProps.hxx>
52 #include <Geom_Surface.hxx>
54 #include <Bnd_Box.hxx>
55 #include <BRepBndLib.hxx>
56 #include <BRepAdaptor_Surface.hxx>
57 #include <ShapeAnalysis_Surface.hxx>
60 #include <Precision.hxx>
61 #include <Standard_NullObject.hxx>
62 #include <StdFail_NotDone.hxx>
64 //=======================================================================
67 //=======================================================================
68 const Standard_GUID& GEOMImpl_MeasureDriver::GetID()
70 static Standard_GUID aMeasureDriver("FF1BBB65-5D14-4df2-980B-3A668264EA16");
71 return aMeasureDriver;
75 //=======================================================================
76 //function : GEOMImpl_MeasureDriver
78 //=======================================================================
79 GEOMImpl_MeasureDriver::GEOMImpl_MeasureDriver()
83 //=======================================================================
86 //=======================================================================
87 Standard_Integer GEOMImpl_MeasureDriver::Execute(TFunction_Logbook& log) const
89 if (Label().IsNull()) return 0;
90 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
92 GEOMImpl_IMeasure aCI (aFunction);
93 Standard_Integer aType = aFunction->GetType();
97 if (aType == CDG_MEASURE)
99 Handle(GEOM_Function) aRefBase = aCI.GetBase();
100 TopoDS_Shape aShapeBase = aRefBase->GetValue();
101 if (aShapeBase.IsNull())
102 Standard_NullObject::Raise("Shape for centre of mass calculation is null");
104 gp_Ax3 aPos = GEOMUtils::GetPosition(aShapeBase);
105 gp_Pnt aCenterMass = aPos.Location();
106 aShape = BRepBuilderAPI_MakeVertex(aCenterMass).Shape();
108 else if (aType == BND_BOX_MEASURE)
110 Handle(GEOM_Function) aRefBase = aCI.GetBase();
111 TopoDS_Shape aShapeBase = aRefBase->GetValue();
112 if (aShapeBase.IsNull())
113 Standard_NullObject::Raise("Shape for bounding box calculation is null");
115 BRepBuilderAPI_Copy aCopyTool (aShapeBase);
116 if (!aCopyTool.IsDone())
117 Standard_NullObject::Raise("Shape for bounding box calculation is bad");
119 aShapeBase = aCopyTool.Shape();
121 // remove triangulation to obtain more exact boundaries
122 BRepTools::Clean(aShapeBase);
125 BRepBndLib::Add(aShapeBase, B);
127 Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
128 B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
130 if (Xmax - Xmin < Precision::Confusion()) Xmax += Precision::Confusion();
131 if (Ymax - Ymin < Precision::Confusion()) Ymax += Precision::Confusion();
132 if (Zmax - Zmin < Precision::Confusion()) Zmax += Precision::Confusion();
134 gp_Pnt P1 (Xmin, Ymin, Zmin);
135 gp_Pnt P2 (Xmax, Ymax, Zmax);
137 BRepPrimAPI_MakeBox MB (P1, P2);
139 if (!MB.IsDone()) StdFail_NotDone::Raise("Bounding box cannot be computed from the given shape");
142 else if (aType == VERTEX_BY_INDEX)
144 Handle(GEOM_Function) aRefBase = aCI.GetBase();
145 TopoDS_Shape aShapeBase = aRefBase->GetValue();
146 if (aShapeBase.IsNull()) {
147 Standard_NullObject::Raise("Shape for centre of mass calculation is null");
150 int index = aCI.GetIndex();
153 if (aShapeBase.ShapeType() == TopAbs_VERTEX) {
155 Standard_NullObject::Raise("Vertex index is out of range");
157 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aShapeBase));
158 } else if (aShapeBase.ShapeType() == TopAbs_EDGE) {
159 TopoDS_Vertex aV1, aV2;
160 TopoDS_Edge anEdgeE = TopoDS::Edge(aShapeBase);
162 TopExp::Vertices(anEdgeE, aV1, aV2);
163 gp_Pnt aP1 = BRep_Tool::Pnt(aV1);
164 gp_Pnt aP2 = BRep_Tool::Pnt(aV2);
166 if (index < 0 || index > 1)
167 Standard_NullObject::Raise("Vertex index is out of range");
169 if ( ( anEdgeE.Orientation() == TopAbs_FORWARD && index == 0 ) ||
170 ( anEdgeE.Orientation() == TopAbs_REVERSED && index == 1 ) )
174 } else if (aShapeBase.ShapeType() == TopAbs_WIRE) {
175 TopTools_IndexedMapOfShape anEdgeShapes;
176 TopTools_IndexedMapOfShape aVertexShapes;
177 TopoDS_Vertex aV1, aV2;
178 TopoDS_Wire aWire = TopoDS::Wire(aShapeBase);
179 TopExp_Explorer exp (aWire, TopAbs_EDGE);
180 for (; exp.More(); exp.Next()) {
181 anEdgeShapes.Add(exp.Current());
182 TopoDS_Edge E = TopoDS::Edge(exp.Current());
183 TopExp::Vertices(E, aV1, aV2);
184 if ( aVertexShapes.Extent() == 0)
185 aVertexShapes.Add(aV1);
186 if ( !aV1.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
187 aVertexShapes.Add(aV1);
188 if ( !aV2.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
189 aVertexShapes.Add(aV2);
192 if (index < 0 || index > aVertexShapes.Extent())
193 Standard_NullObject::Raise("Vertex index is out of range");
195 if (aWire.Orientation() == TopAbs_FORWARD)
196 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(index+1)));
198 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(aVertexShapes.Extent() - index)));
200 Standard_NullObject::Raise("Shape for vertex calculation is not an edge or wire");
203 aShape = BRepBuilderAPI_MakeVertex(aVertex).Shape();
205 else if (aType == VECTOR_FACE_NORMALE)
208 Handle(GEOM_Function) aRefBase = aCI.GetBase();
209 TopoDS_Shape aShapeBase = aRefBase->GetValue();
210 if (aShapeBase.IsNull()) {
211 Standard_NullObject::Raise("Face for normale calculation is null");
213 if (aShapeBase.ShapeType() != TopAbs_FACE) {
214 Standard_NullObject::Raise("Shape for normale calculation is not a face");
216 TopoDS_Face aFace = TopoDS::Face(aShapeBase);
221 Handle(GEOM_Function) aPntFunc = aCI.GetPoint();
222 if (!aPntFunc.IsNull())
224 TopoDS_Shape anOptPnt = aPntFunc->GetValue();
225 if (anOptPnt.IsNull())
226 Standard_NullObject::Raise("Invalid shape given for point argument");
227 p1 = BRep_Tool::Pnt(TopoDS::Vertex(anOptPnt));
231 gp_Ax3 aPos = GEOMUtils::GetPosition(aFace);
232 p1 = aPos.Location();
235 // Point parameters on surface
236 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
237 Handle(ShapeAnalysis_Surface) aSurfAna = new ShapeAnalysis_Surface (aSurf);
238 gp_Pnt2d pUV = aSurfAna->ValueOfUV(p1, Precision::Confusion());
242 BRepAdaptor_Surface SF (aFace);
243 SF.D1(pUV.X(), pUV.Y(), p1, Vec1, Vec2);
244 if (Vec1.Magnitude() < Precision::Confusion()) {
247 SF.D1(pUV.X(), pUV.Y()-0.1, tmpP, Vec1, tmpV);
249 else if (Vec2.Magnitude() < Precision::Confusion()) {
252 SF.D1(pUV.X()-0.1, pUV.Y(), tmpP, tmpV, Vec2);
255 gp_Vec V = Vec1.Crossed(Vec2);
256 Standard_Real mod = V.Magnitude();
257 if (mod < Precision::Confusion())
258 Standard_NullObject::Raise("Normal vector of a face has null magnitude");
260 // Set length of normal vector to average radius of curvature
261 Standard_Real radius = 0.0;
262 GeomLProp_SLProps aProperties (aSurf, pUV.X(), pUV.Y(), 2, Precision::Confusion());
263 if (aProperties.IsCurvatureDefined()) {
264 Standard_Real radius1 = Abs(aProperties.MinCurvature());
265 Standard_Real radius2 = Abs(aProperties.MaxCurvature());
266 if (Abs(radius1) > Precision::Confusion()) {
267 radius = 1.0 / radius1;
268 if (Abs(radius2) > Precision::Confusion()) {
269 radius = (radius + 1.0 / radius2) / 2.0;
273 if (Abs(radius2) > Precision::Confusion()) {
274 radius = 1.0 / radius2;
279 // Set length of normal vector to average dimension of the face
280 // (only if average radius of curvature is not appropriate)
281 if (radius < Precision::Confusion()) {
283 Standard_Real Xmin, Xmax, Ymin, Ymax, Zmin, Zmax;
284 BRepBndLib::Add(aFace, B);
285 B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
286 radius = ((Xmax - Xmin) + (Ymax - Ymin) + (Zmax - Zmin)) / 3.0;
289 if (radius < Precision::Confusion())
294 // consider the face orientation
295 if (aFace.Orientation() == TopAbs_REVERSED ||
296 aFace.Orientation() == TopAbs_INTERNAL) {
301 gp_Pnt p2 = p1.Translated(V);
302 BRepBuilderAPI_MakeEdge aBuilder (p1, p2);
303 if (!aBuilder.IsDone())
304 Standard_NullObject::Raise("Vector construction failed");
305 aShape = aBuilder.Shape();
310 if (aShape.IsNull()) return 0;
312 aFunction->SetValue(aShape);
314 log.SetTouched(Label());
320 //=======================================================================
321 //function : GEOMImpl_MeasureDriver_Type_
323 //=======================================================================
324 Standard_EXPORT Handle_Standard_Type& GEOMImpl_MeasureDriver_Type_()
327 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
328 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
329 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
330 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
331 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
332 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
335 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
336 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_MeasureDriver",
337 sizeof(GEOMImpl_MeasureDriver),
339 (Standard_Address)_Ancestors,
340 (Standard_Address)NULL);
345 //=======================================================================
346 //function : DownCast
348 //=======================================================================
349 const Handle(GEOMImpl_MeasureDriver) Handle(GEOMImpl_MeasureDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
351 Handle(GEOMImpl_MeasureDriver) _anOtherObject;
353 if (!AnObject.IsNull()) {
354 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_MeasureDriver))) {
355 _anOtherObject = Handle(GEOMImpl_MeasureDriver)((Handle(GEOMImpl_MeasureDriver)&)AnObject);
359 return _anOtherObject ;