From: apo <apo@opencascade.com>
Date: Thu, 1 May 2008 06:18:00 +0000 (+0000)
Subject: Example of cutting ELNO data
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=9363db07ef9ccd0ec5ffbf5c26261902b9b4c9bc;p=modules%2Fvisu.git

Example of cutting ELNO data
---

diff --git a/src/PIPELINE/VISUPipeLine.cxx b/src/PIPELINE/VISUPipeLine.cxx
index d660d7b4..752c4ab6 100644
--- a/src/PIPELINE/VISUPipeLine.cxx
+++ b/src/PIPELINE/VISUPipeLine.cxx
@@ -48,6 +48,13 @@
 #include "VISU_ElnoGeometryFilter.hxx"
 #include "VISU_OpenGLElnoMapper.hxx"
 
+#include <vtkCutter.h>
+#include <vtkPlane.h>
+
+#include <vtkScalarBarActor.h>
+#include <vtkScalarBarWidget.h>
+
+
 // VTK includes
 #include <vtkMaskPoints.h>
 #include <vtkUnstructuredGridReader.h>
@@ -234,21 +241,40 @@ main(int argc, char** argv)
                                                anEntity,
                                                theFieldName,
                                                aTimeStamp);
+
+	      vtkUnstructuredGrid* anUnstructuredGrid = anUnstructuredGridIDMapper->GetUnstructuredGridOutput();
+	      VISU::WriteToFile( anUnstructuredGrid, "/data/apo/elno_from_id_mapper.vtk" );
 	      
-	      VISU_ElnoWarpVector* anElnoWarpVector = VISU_ElnoWarpVector::New();
-              anElnoWarpVector->SetInput( anUnstructuredGridIDMapper->GetUnstructuredGridOutput() );
+	      vtkCutter *aCutter = vtkCutter::New();
+	      aCutter->SetInput( anUnstructuredGrid );
+
+	      vtkPlane *aPlane = vtkPlane::New();
+	      //aPlane->SetOrigin( 100.0, 100.0, 100.0 );
+	      //aPlane->SetNormal( 0.0, -1.0, 0.0 );
+	      aPlane->SetOrigin( 15.0, 5.0, 5.0 );
+	      aPlane->SetNormal( 0.0, 0.0, -1.0 );
+
+	      aCutter->SetCutFunction( aPlane );
+	      aPlane->Delete();
+	      VISU::WriteToFile( aCutter->GetOutput(), "/data/apo/elno_from_cutter.vtk" );
+
+	      //VISU_ElnoWarpVector* anElnoWarpVector = VISU_ElnoWarpVector::New();
+              //anElnoWarpVector->SetInput( anUnstructuredGridIDMapper->GetUnstructuredGridOutput() );
 
               VISU_ElnoGeometryFilter *aGeometryFilter = VISU_ElnoGeometryFilter::New();
               aGeometryFilter->SetScalarMode(aComponentNumber);
-              aGeometryFilter->SetInput( anElnoWarpVector->GetOutput() );
+              aGeometryFilter->SetInput( anUnstructuredGrid );
+              //aGeometryFilter->SetInput( anElnoWarpVector->GetOutput() );
+              //aGeometryFilter->SetInput( aCutter->GetOutput() );
+	      VISU::WriteToFile( aCutter->GetOutput(), "/data/apo/elno_from_geometry.vtk" );
 
 	      // To calculate and apply default scale factor
-	      {
-		vtkFloatingPointType aScale = VISU_DeformedShapePL::GetScaleFactor( anElnoWarpVector->GetOutput() );
-		vtkFloatingPointType* aRange = aGeometryFilter->GetRange();
-		aScale /= aRange[1];
-		anElnoWarpVector->SetScaleFactor( aScale );
-	      }
+	      //{
+	      //	vtkFloatingPointType aScale = VISU_DeformedShapePL::GetScaleFactor( anElnoWarpVector->GetOutput() );
+	      //	vtkFloatingPointType* aRange = aGeometryFilter->GetRange();
+	      //	aScale /= aRange[1];
+	      //	anElnoWarpVector->SetScaleFactor( aScale );
+	      //}
 
               VISU_OpenGLElnoMapper* aMapper = VISU_OpenGLElnoMapper::New();
               aMapper->SetInput( aGeometryFilter->GetOutput() );              
@@ -263,12 +289,20 @@ main(int argc, char** argv)
               aMapper->SetUseLookupTableScalarRange( true );
               aMapper->SetColorModeToMapScalars();
               aMapper->ScalarVisibilityOn();
-              
 
               anActor->SetMapper( aMapper );
 
-              VISU_ScalarBarActor * aScalarBar = VISU_ScalarBarActor::New();
+	      vtkPolyData* aPolyData = aGeometryFilter->GetOutput();
+	      vtkCellData* aCellData = aPolyData->GetCellData();
+	      vtkDataArray* aScalars = aCellData->GetScalars();
+              vtkScalarBarActor* aScalarBar = vtkScalarBarActor::New();
               aScalarBar->SetLookupTable( aMapperTable );
+              aScalarBar->SetTitle( aScalars->GetName() );
+
+	      vtkScalarBarWidget* aWidget = vtkScalarBarWidget::New();
+	      aWidget->SetScalarBarActor( aScalarBar );
+	      aWidget->SetInteractor( anInteractor );
+	      aWidget->SetEnabled( true );
 
               aRenderer->AddActor(anActor);
               aRenderer->AddActor2D(aScalarBar);