1 // VISU OBJECT : interactive object for VISU entities implementation
3 // Copyright (C) 2003 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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
23 // File: VISU_PipeLine.cxx
24 // Author: Alexey PETROV
28 #include "VISU_DeformedShapePL.hxx"
29 #include "VISU_PipeLineUtils.hxx"
30 #include "VTKViewer_Transform.h"
32 #include <vtkWarpVector.h>
34 vtkStandardNewMacro(VISU_DeformedShapePL);
36 VISU_DeformedShapePL::VISU_DeformedShapePL(){
37 myWarpVector = vtkWarpVector::New();
38 myCellDataToPointData = vtkCellDataToPointData::New();
41 VISU_DeformedShapePL::~VISU_DeformedShapePL(){
42 myWarpVector->UnRegisterAllOutputs();
43 myWarpVector->Delete();
45 myCellDataToPointData->UnRegisterAllOutputs();
46 myCellDataToPointData->Delete();
49 void VISU_DeformedShapePL::ShallowCopy(VISU_PipeLine *thePipeLine){
50 if(VISU_DeformedShapePL *aPipeLine = dynamic_cast<VISU_DeformedShapePL*>(thePipeLine)){
51 SetScale(aPipeLine->GetScale());
53 VISU_ScalarMapPL::ShallowCopy(thePipeLine);
56 float VISU_DeformedShapePL::GetScaleFactor(vtkDataSet* theDataSet){
57 if(!theDataSet) return 0.0;
59 int aNbCells = theDataSet->GetNumberOfCells();
60 int aNbPoints = theDataSet->GetNumberOfPoints();
61 int aNbElem = aNbCells? aNbCells: aNbPoints;
62 float* aBounds = theDataSet->GetBounds();
63 float aVolume = 1, aVol, idim = 0;
64 for(int i = 0; i < 6; i += 2){
65 aVol = fabs(aBounds[i+1] - aBounds[i]);
72 return pow(aVolume,float(1.0/idim));
76 void VISU_DeformedShapePL::SetScale(float theScale) {
77 myWarpVector->SetScaleFactor(theScale);
78 myScaleFactor = theScale;
81 float VISU_DeformedShapePL::GetScale() {
85 void VISU_DeformedShapePL::Init(){
86 VISU_ScalarMapPL::Init();
87 float aScalarRange[2];
88 GetSourceRange(aScalarRange);
90 vtkDataSet* aDataSet = GetInput2();
91 float aScaleFactor = VISU_DeformedShapePL::GetScaleFactor( aDataSet );
93 static double EPS = 1.0 / VTK_LARGE_FLOAT;
94 if(fabs(aScalarRange[1]) > EPS)
95 SetScale(aScaleFactor / aScalarRange[1]);
100 VISU_ScalarMapPL::THook* VISU_DeformedShapePL::DoHook(){
101 VISU::CellDataToPoint(myWarpVector,myCellDataToPointData,GetInput2(),myFieldTransform);
102 return myWarpVector->GetOutput();
105 void VISU_DeformedShapePL::Update(){
106 VISU_ScalarMapPL::Update();
109 void VISU_DeformedShapePL::SetMapScale(float theMapScale){
110 VISU_ScalarMapPL::SetMapScale(theMapScale);
112 myWarpVector->SetScaleFactor(myScaleFactor*theMapScale);