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
22 // File : SMESH_Measurements_i.cxx
23 // Author : Pavel TELKOV, Open CASCADE S.A.S. (pavel.telkov@opencascade.com)
25 #include "SMESH_Measurements_i.hxx"
27 #include "SMESH_Gen_i.hxx"
28 #include "SMESH_Filter_i.hxx"
29 #include "SMESH_PythonDump.hxx"
31 #include "SMDS_Mesh.hxx"
32 #include "SMDS_MeshNode.hxx"
33 #include "SMDS_MeshElement.hxx"
34 #include "SMDS_ElemIterator.hxx"
36 #include "SMESHDS_Mesh.hxx"
39 using namespace SMESH;
42 * this local function to avoid uninitialized fields
44 static void initMeasure( SMESH::Measure& theMeasure)
47 theMeasure.minX = theMeasure.minY = theMeasure.minZ = 0.;
48 theMeasure.maxX = theMeasure.maxY = theMeasure.maxZ = 0.;
49 theMeasure.node1 = theMeasure.node2 = -1;
50 theMeasure.elem1 = theMeasure.elem2 = -1;
51 theMeasure.value = 0.;
54 //=============================================================================
56 * SMESH_Gen_i::CreateMeasurements
58 * Create measurement instance
60 //=============================================================================
62 SMESH::Measurements_ptr SMESH_Gen_i::CreateMeasurements()
64 SMESH::Measurements_i* aMeasure = new SMESH::Measurements_i();
65 SMESH::Measurements_var anObj = aMeasure->_this();
72 Description : make measure of mesh qunatities
75 //=======================================================================
76 // name : Measurements_i
77 // Purpose : Constructor
78 //=======================================================================
79 Measurements_i::Measurements_i()
80 : SALOME::GenericObj_i( SMESH_Gen_i::GetPOA() )
82 //Base class Salome_GenericObject do it inmplicitly by overriding PortableServer::POA_ptr _default_POA() method
83 //PortableServer::ObjectId_var anObjectId =
84 // SMESH_Gen_i::GetPOA()->activate_object( this );
87 //=======================================================================
88 // name : ~Measurements_i
89 // Purpose : Destructor
90 //=======================================================================
91 Measurements_i::~Measurements_i()
93 //TPythonDump()<<this<<".UnRegister()";
96 static bool getNodeNodeDistance (SMESH::Measure& theMeasure,
97 const SMDS_MeshNode* theNode1,
98 const SMDS_MeshNode* theNode2 = 0)
100 double dist = 0., dd = 0.;
105 dd = theNode1->X(); if (theNode2) dd -= theNode2->X(); theMeasure.minX = dd; dd *= dd; dist += dd;
106 dd = theNode1->Y(); if (theNode2) dd -= theNode2->Y(); theMeasure.minY = dd; dd *= dd; dist += dd;
107 dd = theNode1->Z(); if (theNode2) dd -= theNode2->Z(); theMeasure.minZ = dd; dd *= dd; dist += dd;
112 theMeasure.value = sqrt(dist);
113 theMeasure.node1 = theNode1->GetID();
114 theMeasure.node2 = theNode2 ? theNode2->GetID() : 0;
119 static SMESHDS_Mesh* getMesh(SMESH::SMESH_IDSource_ptr theSource)
121 if (!CORBA::is_nil( theSource ))
123 SMESH_Mesh_i* anImplPtr = DownCast<SMESH_Mesh_i*>(theSource->GetMesh());
125 return anImplPtr->GetImpl().GetMeshDS();
130 static bool isNodeType (SMESH::array_of_ElementType_var theTypes)
132 return theTypes->length() > 0 && theTypes[0] == SMESH::NODE;
135 static double getNumericalValue(SMESH::SMESH_IDSource_ptr theSource, SMESH::Controls::NumericalFunctorPtr theFunctor)
139 if ( !CORBA::is_nil( theSource ) ) {
140 const SMESHDS_Mesh* aMesh = getMesh( theSource );
142 theFunctor->SetMesh( aMesh );
144 SMESH::long_array_var anElementsId = theSource->GetIDs();
145 for (int i = 0; i < anElementsId->length(); i++) {
146 value += theFunctor->GetValue( anElementsId[i] );
153 //=======================================================================
154 // name : MinDistance
155 // Purpose : minimal distance between two given entities
156 //=======================================================================
157 SMESH::Measure Measurements_i::MinDistance
158 (SMESH::SMESH_IDSource_ptr theSource1,
159 SMESH::SMESH_IDSource_ptr theSource2)
161 SMESH::Measure aMeasure;
162 initMeasure(aMeasure);
164 if (CORBA::is_nil( theSource1 ))
167 // if second source is null, min distance from theSource1 to the origin is calculated
168 bool isOrigin = CORBA::is_nil( theSource2 );
170 // calculate minimal distance between two mesh entities
171 SMESH::array_of_ElementType_var types1 = theSource1->GetTypes();
172 SMESH::array_of_ElementType_var types2;
173 if ( !isOrigin ) types2 = theSource2->GetTypes();
175 // here we assume that type of all IDs defined by first type in array
176 bool isNode1 = isNodeType(types1);
177 bool isNode2 = isOrigin || isNodeType(types2);
179 SMESH::long_array_var aElementsId1 = theSource1->GetIDs();
180 SMESH::long_array_var aElementsId2;
181 if ( !isOrigin ) aElementsId2 = theSource2->GetIDs();
183 // compute distance between two entities
184 /* NOTE: currently only node-to-node case is implemented
185 * all other cases will be implemented later
186 * below IF should be replaced by complete switch
187 * on mesh entities types
189 if (isNode1 && isNode2)
192 const SMESHDS_Mesh* aMesh1 = getMesh( theSource1 );
193 const SMESHDS_Mesh* aMesh2 = isOrigin ? 0 : getMesh( theSource2 );
194 const SMDS_MeshNode* theNode1 = aMesh1 ? aMesh1->FindNode( aElementsId1[0] ) : 0;
195 const SMDS_MeshNode* theNode2 = aMesh2 ? aMesh2->FindNode( aElementsId2[0] ) : 0;
196 getNodeNodeDistance( aMeasure, theNode1, theNode2 );
206 //=======================================================================
207 // name : enlargeBoundingBox
209 //=======================================================================
210 static void enlargeBoundingBox(const SMDS_MeshNode* theNode,
211 SMESH::Measure& theMeasure)
215 if ( theMeasure.node1 == -1 ) {
216 // we use this attribute as a flag that it is the first node added to the bnd box
217 theMeasure.minX = theMeasure.maxX = theNode->X();
218 theMeasure.minY = theMeasure.maxY = theNode->Y();
219 theMeasure.minZ = theMeasure.maxZ = theNode->Z();
220 theMeasure.node1 = theNode->GetID();
223 theMeasure.minX = min( theMeasure.minX, theNode->X() );
224 theMeasure.maxX = max( theMeasure.maxX, theNode->X() );
225 theMeasure.minY = min( theMeasure.minY, theNode->Y() );
226 theMeasure.maxY = max( theMeasure.maxY, theNode->Y() );
227 theMeasure.minZ = min( theMeasure.minZ, theNode->Z() );
228 theMeasure.maxZ = max( theMeasure.maxZ, theNode->Z() );
232 //=======================================================================
233 // name : enlargeBoundingBox
235 //=======================================================================
236 static void enlargeBoundingBox(const SMESH::SMESH_IDSource_ptr theObject,
237 SMESH::Measure& theMeasure)
239 if ( CORBA::is_nil( theObject ) )
241 const SMESHDS_Mesh* aMesh = getMesh( theObject );
244 SMESH::array_of_ElementType_var types = theObject->GetTypes();
245 SMESH::long_array_var aElementsId = theObject->GetIDs();
246 // here we assume that type of all IDs defined by first type in array
247 const bool isNode = isNodeType( types );
248 for(int i = 0, n = aElementsId->length(); i < n; i++)
251 enlargeBoundingBox( aMesh->FindNode( aElementsId[i] ), theMeasure);
254 const SMDS_MeshElement* elem = aMesh->FindElement( aElementsId[i] );
257 SMDS_ElemIteratorPtr aNodeIter = elem->nodesIterator();
258 while( aNodeIter->more() )
259 enlargeBoundingBox( dynamic_cast<const SMDS_MeshNode*>( aNodeIter->next() ), theMeasure);
264 //=======================================================================
265 // name : BoundingBox
266 // Purpose : compute common bounding box of entities
267 //=======================================================================
268 SMESH::Measure Measurements_i::BoundingBox (const SMESH::ListOfIDSources& theSources)
270 SMESH::Measure aMeasure;
271 initMeasure(aMeasure);
273 // calculate bounding box on sources
274 for ( int i = 0, n = theSources.length(); i < n ; ++i )
275 enlargeBoundingBox( theSources[i], aMeasure );
280 //=======================================================================
282 // Purpose : sum of length of 1D elements of the source
283 //=======================================================================
284 double Measurements_i::Length(SMESH::SMESH_IDSource_ptr theSource)
286 return getNumericalValue( theSource, SMESH::Controls::NumericalFunctorPtr(new SMESH::Controls::Length()) );
289 //=======================================================================
291 // Purpose : sum of area of 2D elements of the source
292 //=======================================================================
293 double Measurements_i::Area(SMESH::SMESH_IDSource_ptr theSource)
295 return getNumericalValue( theSource, SMESH::Controls::NumericalFunctorPtr(new SMESH::Controls::Area()) );
298 //=======================================================================
300 // Purpose : sum of volume of 3D elements of the source
301 //=======================================================================
302 double Measurements_i::Volume(SMESH::SMESH_IDSource_ptr theSource)
304 return getNumericalValue( theSource, SMESH::Controls::NumericalFunctorPtr(new SMESH::Controls::Volume()) );