1 // Copyright (C) 2007-2011 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_PythonDump.hxx"
30 #include "SMDS_Mesh.hxx"
31 #include "SMDS_MeshNode.hxx"
32 #include "SMDS_MeshElement.hxx"
33 #include "SMDS_ElemIterator.hxx"
35 #include "SMESHDS_Mesh.hxx"
38 using namespace SMESH;
41 * this local function to avoid uninitialized fields
43 static void initMeasure( SMESH::Measure& theMeasure)
46 theMeasure.minX = theMeasure.minY = theMeasure.minZ = 0.;
47 theMeasure.maxX = theMeasure.maxY = theMeasure.maxZ = 0.;
48 theMeasure.node1 = theMeasure.node2 = -1;
49 theMeasure.elem1 = theMeasure.elem2 = -1;
50 theMeasure.value = 0.;
53 //=============================================================================
55 * SMESH_Gen_i::CreateMeasurements
57 * Create measurement instance
59 //=============================================================================
61 SMESH::Measurements_ptr SMESH_Gen_i::CreateMeasurements()
63 SMESH::Measurements_i* aMeasure = new SMESH::Measurements_i();
64 SMESH::Measurements_var anObj = aMeasure->_this();
71 Description : make measure of mesh qunatities
74 //=======================================================================
75 // name : Measurements_i
76 // Purpose : Constructor
77 //=======================================================================
78 Measurements_i::Measurements_i()
79 : SALOME::GenericObj_i( SMESH_Gen_i::GetPOA() )
81 //Base class Salome_GenericObject do it inmplicitly by overriding PortableServer::POA_ptr _default_POA() method
82 //PortableServer::ObjectId_var anObjectId =
83 // SMESH_Gen_i::GetPOA()->activate_object( this );
86 //=======================================================================
87 // name : ~Measurements_i
88 // Purpose : Destructor
89 //=======================================================================
90 Measurements_i::~Measurements_i()
92 //TPythonDump()<<this<<".UnRegister()";
95 static bool getNodeNodeDistance (SMESH::Measure& theMeasure,
96 const SMDS_MeshNode* theNode1,
97 const SMDS_MeshNode* theNode2 = 0)
99 double dist = 0., dd = 0.;
104 dd = theNode1->X(); if (theNode2) dd -= theNode2->X(); theMeasure.minX = dd; dd *= dd; dist += dd;
105 dd = theNode1->Y(); if (theNode2) dd -= theNode2->Y(); theMeasure.minY = dd; dd *= dd; dist += dd;
106 dd = theNode1->Z(); if (theNode2) dd -= theNode2->Z(); theMeasure.minZ = dd; dd *= dd; dist += dd;
111 theMeasure.value = sqrt(dist);
112 theMeasure.node1 = theNode1->GetID();
113 theMeasure.node2 = theNode2 ? theNode2->GetID() : 0;
118 static SMESHDS_Mesh* getMesh(SMESH::SMESH_IDSource_ptr theSource)
120 if (!CORBA::is_nil( theSource ))
122 SMESH_Mesh_i* anImplPtr = DownCast<SMESH_Mesh_i*>(theSource->GetMesh());
124 return anImplPtr->GetImpl().GetMeshDS();
129 static bool isNodeType (SMESH::array_of_ElementType_var theTypes)
131 return theTypes->length() > 0 && theTypes[0] == SMESH::NODE;
134 //=======================================================================
135 // name : MinDistance
136 // Purpose : minimal distance between two given entities
137 //=======================================================================
138 SMESH::Measure Measurements_i::MinDistance
139 (SMESH::SMESH_IDSource_ptr theSource1,
140 SMESH::SMESH_IDSource_ptr theSource2)
142 SMESH::Measure aMeasure;
143 initMeasure(aMeasure);
145 if (CORBA::is_nil( theSource1 ))
148 // if second source is null, min distance from theSource1 to the origin is calculated
149 bool isOrigin = CORBA::is_nil( theSource2 );
151 // calculate minimal distance between two mesh entities
152 SMESH::array_of_ElementType_var types1 = theSource1->GetTypes();
153 SMESH::array_of_ElementType_var types2;
154 if ( !isOrigin ) types2 = theSource2->GetTypes();
156 // here we assume that type of all IDs defined by first type in array
157 bool isNode1 = isNodeType(types1);
158 bool isNode2 = isOrigin || isNodeType(types2);
160 SMESH::long_array_var aElementsId1 = theSource1->GetIDs();
161 SMESH::long_array_var aElementsId2;
162 if ( !isOrigin ) aElementsId2 = theSource2->GetIDs();
164 // compute distance between two entities
165 /* NOTE: currently only node-to-node case is implemented
166 * all other cases will be implemented later
167 * below IF should be replaced by complete switch
168 * on mesh entities types
170 if (isNode1 && isNode2)
173 const SMESHDS_Mesh* aMesh1 = getMesh( theSource1 );
174 const SMESHDS_Mesh* aMesh2 = isOrigin ? 0 : getMesh( theSource2 );
175 const SMDS_MeshNode* theNode1 = aMesh1 ? aMesh1->FindNode( aElementsId1[0] ) : 0;
176 const SMDS_MeshNode* theNode2 = aMesh2 ? aMesh2->FindNode( aElementsId2[0] ) : 0;
177 getNodeNodeDistance( aMeasure, theNode1, theNode2 );
187 //=======================================================================
188 // name : enlargeBoundingBox
190 //=======================================================================
191 static void enlargeBoundingBox(const SMDS_MeshNode* theNode,
192 SMESH::Measure& theMeasure)
196 if ( theMeasure.node1 == -1 ) {
197 // we use this attribute as a flag that it is the first node added to the bnd box
198 theMeasure.minX = theMeasure.maxX = theNode->X();
199 theMeasure.minY = theMeasure.maxY = theNode->Y();
200 theMeasure.minZ = theMeasure.maxZ = theNode->Z();
201 theMeasure.node1 = theNode->GetID();
204 theMeasure.minX = min( theMeasure.minX, theNode->X() );
205 theMeasure.maxX = max( theMeasure.maxX, theNode->X() );
206 theMeasure.minY = min( theMeasure.minY, theNode->Y() );
207 theMeasure.maxY = max( theMeasure.maxY, theNode->Y() );
208 theMeasure.minZ = min( theMeasure.minZ, theNode->Z() );
209 theMeasure.maxZ = max( theMeasure.maxZ, theNode->Z() );
213 //=======================================================================
214 // name : enlargeBoundingBox
216 //=======================================================================
217 static void enlargeBoundingBox(const SMESH::SMESH_IDSource_ptr theObject,
218 SMESH::Measure& theMeasure)
220 if ( CORBA::is_nil( theObject ) )
222 const SMESHDS_Mesh* aMesh = getMesh( theObject );
225 SMESH::array_of_ElementType_var types = theObject->GetTypes();
226 SMESH::long_array_var aElementsId = theObject->GetIDs();
227 // here we assume that type of all IDs defined by first type in array
228 const bool isNode = isNodeType( types );
229 for(int i = 0, n = aElementsId->length(); i < n; i++)
232 enlargeBoundingBox( aMesh->FindNode( aElementsId[i] ), theMeasure);
235 const SMDS_MeshElement* elem = aMesh->FindElement( aElementsId[i] );
238 SMDS_ElemIteratorPtr aNodeIter = elem->nodesIterator();
239 while( aNodeIter->more() )
240 enlargeBoundingBox( dynamic_cast<const SMDS_MeshNode*>( aNodeIter->next() ), theMeasure);
245 //=======================================================================
246 // name : BoundingBox
247 // Purpose : compute common bounding box of entities
248 //=======================================================================
249 SMESH::Measure Measurements_i::BoundingBox (const SMESH::ListOfIDSources& theSources)
251 SMESH::Measure aMeasure;
252 initMeasure(aMeasure);
254 // calculate bounding box on sources
255 for ( int i = 0, n = theSources.length(); i < n ; ++i )
256 enlargeBoundingBox( theSources[i], aMeasure );