Primjena biblioteke VTK u vizualizaciji znanstvenih podataka - Pmf

eader->GetOutput()->GetPointData()->GetScalars()->GetRange(scalarBounds);
//bojanje skalara
vtkColorTransferFunction *scalarColor=vtkColorTransferFunction::New();
scalarColor->AddRGBPoint(scalarBounds[0], 1, 0, 0);
scalarColor->AddRGBPoint((3*scalarBounds[0]+scalarBounds[1])/4, 1, 1, 0);
scalarColor->AddRGBPoint((scalarBounds[0]+scalarBounds[1])/2, 0, 1, 0);
scalarColor->AddRGBPoint((scalarBounds[0]+3*scalarBounds[1])/4, 0, 1, 1);
scalarColor->AddRGBPoint(scalarBounds[1], 0, 0, 1);
//renderer
vtkRenderer *ren=vtkRenderer::New();
ren->SetBackground(1.0,1.0,1.0);
ren->ResetCamera(dataBounds);
ren->GetActiveCamera()->Roll(-20);
ren->GetActiveCamera()->Elevation(-75);
//izoplohe
if(command->isIso())
{
vtkContourFilter *contour=vtkContourFilter::New();
contour->SetInputConnection(reader->GetOutputPort());
contour->GenerateValues(command->getIsoNo(), scalarBounds);
vtkPolyDataMapper *contMapper=vtkPolyDataMapper::New();
contMapper->SetInputConnection(contour->GetOutputPort());
contMapper->SetLookupTable(scalarColor);
vtkActor *contActor=vtkActor::New();
contActor->SetMapper(contMapper);
ren->AddActor(contActor);
contour->Delete();
contMapper->Delete();
contActor->Delete();
}
//presjek
vtkPlane *plane=vtkPlane::New();
if(command->isCut())
{
plane->SetOrigin(reader->GetOutput()->GetCenter());
plane->SetNormal(0, -1, 0);
vtkCutter *cutter=vtkCutter::New();
cutter->SetInputConnection(reader->GetOutputPort());
cutter->SetCutFunction(plane);
vtkPolyDataMapper *cutMapper=vtkPolyDataMapper::New();
cutMapper->SetInputConnection(cutter->GetOutputPort());
cutMapper->SetLookupTable(scalarColor);
vtkActor *cutActor=vtkActor::New();
cutActor->SetMapper(cutMapper);
ren->AddActor(cutActor);
cutter->Delete();
cutMapper->Delete();
cutActor->Delete();
}
if(command->isVolume())
37