1 // Copyright (C) 2007-2012 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_MeasureDriver.hxx>
25 #include <GEOMImpl_IMeasure.hxx>
26 #include <GEOMImpl_Types.hxx>
28 #include <GEOM_Function.hxx>
30 #include <GEOMUtils.hxx>
32 #include <BRep_Tool.hxx>
33 #include <BRepTools.hxx>
34 #include <BRepGProp.hxx>
35 #include <BRepBuilderAPI_Copy.hxx>
36 #include <BRepBuilderAPI_MakeEdge.hxx>
37 #include <BRepBuilderAPI_MakeVertex.hxx>
38 #include <BRepPrimAPI_MakeBox.hxx>
42 #include <TopoDS_Shape.hxx>
43 #include <TopoDS_Edge.hxx>
44 #include <TopoDS_Wire.hxx>
46 #include <TopExp_Explorer.hxx>
47 #include <TopTools_IndexedMapOfShape.hxx>
49 #include <GProp_GProps.hxx>
50 #include <GeomLProp_SLProps.hxx>
51 #include <Geom_Surface.hxx>
53 #include <Bnd_Box.hxx>
54 #include <BRepBndLib.hxx>
55 #include <BRepAdaptor_Surface.hxx>
56 #include <ShapeAnalysis_Surface.hxx>
59 #include <Precision.hxx>
60 #include <Standard_NullObject.hxx>
61 #include <StdFail_NotDone.hxx>
63 //=======================================================================
66 //=======================================================================
67 const Standard_GUID& GEOMImpl_MeasureDriver::GetID()
69 static Standard_GUID aMeasureDriver("FF1BBB65-5D14-4df2-980B-3A668264EA16");
70 return aMeasureDriver;
74 //=======================================================================
75 //function : GEOMImpl_MeasureDriver
77 //=======================================================================
78 GEOMImpl_MeasureDriver::GEOMImpl_MeasureDriver()
82 //=======================================================================
85 //=======================================================================
86 Standard_Integer GEOMImpl_MeasureDriver::Execute(TFunction_Logbook& log) const
88 if (Label().IsNull()) return 0;
89 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
91 GEOMImpl_IMeasure aCI (aFunction);
92 Standard_Integer aType = aFunction->GetType();
96 if (aType == CDG_MEASURE)
98 Handle(GEOM_Function) aRefBase = aCI.GetBase();
99 TopoDS_Shape aShapeBase = aRefBase->GetValue();
100 if (aShapeBase.IsNull())
101 Standard_NullObject::Raise("Shape for centre of mass calculation is null");
103 gp_Ax3 aPos = GEOMUtils::GetPosition(aShapeBase);
104 gp_Pnt aCenterMass = aPos.Location();
105 aShape = BRepBuilderAPI_MakeVertex(aCenterMass).Shape();
107 else if (aType == BND_BOX_MEASURE)
109 Handle(GEOM_Function) aRefBase = aCI.GetBase();
110 TopoDS_Shape aShapeBase = aRefBase->GetValue();
111 if (aShapeBase.IsNull())
112 Standard_NullObject::Raise("Shape for bounding box calculation is null");
114 BRepBuilderAPI_Copy aCopyTool (aShapeBase);
115 if (!aCopyTool.IsDone())
116 Standard_NullObject::Raise("Shape for bounding box calculation is bad");
118 aShapeBase = aCopyTool.Shape();
120 // remove triangulation to obtain more exact boundaries
121 BRepTools::Clean(aShapeBase);
124 BRepBndLib::Add(aShapeBase, B);
126 Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
127 B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
129 if (Xmax - Xmin < Precision::Confusion()) Xmax += Precision::Confusion();
130 if (Ymax - Ymin < Precision::Confusion()) Ymax += Precision::Confusion();
131 if (Zmax - Zmin < Precision::Confusion()) Zmax += Precision::Confusion();
133 gp_Pnt P1 (Xmin, Ymin, Zmin);
134 gp_Pnt P2 (Xmax, Ymax, Zmax);
136 BRepPrimAPI_MakeBox MB (P1, P2);
138 if (!MB.IsDone()) StdFail_NotDone::Raise("Bounding box cannot be computed from the given shape");
141 else if (aType == VERTEX_BY_INDEX)
143 Handle(GEOM_Function) aRefBase = aCI.GetBase();
144 TopoDS_Shape aShapeBase = aRefBase->GetValue();
145 if (aShapeBase.IsNull()) {
146 Standard_NullObject::Raise("Shape for centre of mass calculation is null");
149 int index = aCI.GetIndex();
152 if (aShapeBase.ShapeType() == TopAbs_VERTEX) {
154 Standard_NullObject::Raise("Vertex index is out of range");
156 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aShapeBase));
157 } else if (aShapeBase.ShapeType() == TopAbs_EDGE) {
158 TopoDS_Vertex aV1, aV2;
159 TopoDS_Edge anEdgeE = TopoDS::Edge(aShapeBase);
161 TopExp::Vertices(anEdgeE, aV1, aV2);
162 gp_Pnt aP1 = BRep_Tool::Pnt(aV1);
163 gp_Pnt aP2 = BRep_Tool::Pnt(aV2);
165 if (index < 0 || index > 1)
166 Standard_NullObject::Raise("Vertex index is out of range");
168 if ( ( anEdgeE.Orientation() == TopAbs_FORWARD && index == 0 ) ||
169 ( anEdgeE.Orientation() == TopAbs_REVERSED && index == 1 ) )
173 } else if (aShapeBase.ShapeType() == TopAbs_WIRE) {
174 TopTools_IndexedMapOfShape anEdgeShapes;
175 TopTools_IndexedMapOfShape aVertexShapes;
176 TopoDS_Vertex aV1, aV2;
177 TopoDS_Wire aWire = TopoDS::Wire(aShapeBase);
178 TopExp_Explorer exp (aWire, TopAbs_EDGE);
179 for (; exp.More(); exp.Next()) {
180 anEdgeShapes.Add(exp.Current());
181 TopoDS_Edge E = TopoDS::Edge(exp.Current());
182 TopExp::Vertices(E, aV1, aV2);
183 if ( aVertexShapes.Extent() == 0)
184 aVertexShapes.Add(aV1);
185 if ( !aV1.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
186 aVertexShapes.Add(aV1);
187 if ( !aV2.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
188 aVertexShapes.Add(aV2);
191 if (index < 0 || index > aVertexShapes.Extent())
192 Standard_NullObject::Raise("Vertex index is out of range");
194 if (aWire.Orientation() == TopAbs_FORWARD)
195 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(index+1)));
197 aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(aVertexShapes.Extent() - index)));
199 Standard_NullObject::Raise("Shape for vertex calculation is not an edge or wire");
202 aShape = BRepBuilderAPI_MakeVertex(aVertex).Shape();
204 else if (aType == VECTOR_FACE_NORMALE)
207 Handle(GEOM_Function) aRefBase = aCI.GetBase();
208 TopoDS_Shape aShapeBase = aRefBase->GetValue();
209 if (aShapeBase.IsNull()) {
210 Standard_NullObject::Raise("Face for normale calculation is null");
212 if (aShapeBase.ShapeType() != TopAbs_FACE) {
213 Standard_NullObject::Raise("Shape for normale calculation is not a face");
215 TopoDS_Face aFace = TopoDS::Face(aShapeBase);
220 Handle(GEOM_Function) aPntFunc = aCI.GetPoint();
221 if (!aPntFunc.IsNull())
223 TopoDS_Shape anOptPnt = aPntFunc->GetValue();
224 if (anOptPnt.IsNull())
225 Standard_NullObject::Raise("Invalid shape given for point argument");
226 p1 = BRep_Tool::Pnt(TopoDS::Vertex(anOptPnt));
230 gp_Ax3 aPos = GEOMUtils::GetPosition(aFace);
231 p1 = aPos.Location();
234 // Point parameters on surface
235 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
236 Handle(ShapeAnalysis_Surface) aSurfAna = new ShapeAnalysis_Surface (aSurf);
237 gp_Pnt2d pUV = aSurfAna->ValueOfUV(p1, Precision::Confusion());
241 BRepAdaptor_Surface SF (aFace);
242 SF.D1(pUV.X(), pUV.Y(), p1, Vec1, Vec2);
243 if (Vec1.Magnitude() < Precision::Confusion()) {
246 SF.D1(pUV.X(), pUV.Y()-0.1, tmpP, Vec1, tmpV);
248 else if (Vec2.Magnitude() < Precision::Confusion()) {
251 SF.D1(pUV.X()-0.1, pUV.Y(), tmpP, tmpV, Vec2);
254 gp_Vec V = Vec1.Crossed(Vec2);
255 Standard_Real mod = V.Magnitude();
256 if (mod < Precision::Confusion())
257 Standard_NullObject::Raise("Normal vector of a face has null magnitude");
259 // Set length of normal vector to average radius of curvature
260 Standard_Real radius = 0.0;
261 GeomLProp_SLProps aProperties (aSurf, pUV.X(), pUV.Y(), 2, Precision::Confusion());
262 if (aProperties.IsCurvatureDefined()) {
263 Standard_Real radius1 = Abs(aProperties.MinCurvature());
264 Standard_Real radius2 = Abs(aProperties.MaxCurvature());
265 if (Abs(radius1) > Precision::Confusion()) {
266 radius = 1.0 / radius1;
267 if (Abs(radius2) > Precision::Confusion()) {
268 radius = (radius + 1.0 / radius2) / 2.0;
272 if (Abs(radius2) > Precision::Confusion()) {
273 radius = 1.0 / radius2;
278 // Set length of normal vector to average dimension of the face
279 // (only if average radius of curvature is not appropriate)
280 if (radius < Precision::Confusion()) {
282 Standard_Real Xmin, Xmax, Ymin, Ymax, Zmin, Zmax;
283 BRepBndLib::Add(aFace, B);
284 B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
285 radius = ((Xmax - Xmin) + (Ymax - Ymin) + (Zmax - Zmin)) / 3.0;
288 if (radius < Precision::Confusion())
293 // consider the face orientation
294 if (aFace.Orientation() == TopAbs_REVERSED ||
295 aFace.Orientation() == TopAbs_INTERNAL) {
300 gp_Pnt p2 = p1.Translated(V);
301 BRepBuilderAPI_MakeEdge aBuilder (p1, p2);
302 if (!aBuilder.IsDone())
303 Standard_NullObject::Raise("Vector construction failed");
304 aShape = aBuilder.Shape();
309 if (aShape.IsNull()) return 0;
311 aFunction->SetValue(aShape);
313 log.SetTouched(Label());
319 //=======================================================================
320 //function : GEOMImpl_MeasureDriver_Type_
322 //=======================================================================
323 Standard_EXPORT Handle_Standard_Type& GEOMImpl_MeasureDriver_Type_()
326 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
327 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
328 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
329 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
330 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
331 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
334 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
335 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_MeasureDriver",
336 sizeof(GEOMImpl_MeasureDriver),
338 (Standard_Address)_Ancestors,
339 (Standard_Address)NULL);
344 //=======================================================================
345 //function : DownCast
347 //=======================================================================
348 const Handle(GEOMImpl_MeasureDriver) Handle(GEOMImpl_MeasureDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
350 Handle(GEOMImpl_MeasureDriver) _anOtherObject;
352 if (!AnObject.IsNull()) {
353 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_MeasureDriver))) {
354 _anOtherObject = Handle(GEOMImpl_MeasureDriver)((Handle(GEOMImpl_MeasureDriver)&)AnObject);
358 return _anOtherObject ;