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// generated by Fast Light User Interface Designer (fluid) version 1.00
#include <vtk.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "vtkAMRStructuredPointsReader.h"
vtkRenderer *renderer;
vtkRenderWindow* renWin;
vtkOutlineFilter *outline;
vtkContourFilter *contour;
vtkPolyDataMapper *outlineMapper;
vtkPolyDataMapper *contMapper;
vtkActor *outlineActor;
vtkActor *contActor;
vtkPolyData *t, *outlineOut, *contOut, *t1;
vtkStructuredPoints *temp, *out;
vtkAMRStructuredPointsReader* spr=0;
int main(int argc, char** argv) {
// Make a window to put the rendering window in. FLTK interface.
// Fl_Window* w;
//{ Fl_Window* o = w = MainWin =
// new Fl_Window(500, 500, "AMRTest");
// w = o;
// o->end();
// }
//renWin = vtkFlRenderWindow::New();
renderer = vtkRenderer::New();
// uncomment this to use the VTK rendering window
//renderer->SetBackground(0.5, 0.5, 0.5);
renWin = vtkRenderWindow::New();
renWin->AddRenderer(renderer);
// uncomment this to use VTK event handler
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);
//create a reader and open the file "amr.raw"
spr = vtkAMRStructuredPointsReader::New();
spr->SetFileName("/nfs/zeus/lcascr1/pushkare/work/amr.raw");
cout<<"NLevels: "<<spr->GetNumLevels()<<endl;
cout<<"NTime: "<<spr->GetNumTimeSteps()<<endl;
int nlevel=0;
if (argc>1) nlevel=atoi(argv[1]);
spr->SelectLevel(nlevel);
spr->SelectTimeStep(0);
spr->Update();
int n = spr->GetNumDatasets();
cout<<"NDataSets: "<<n<<endl;
//initialize the filters for isosurface and bounding box
outline = vtkOutlineFilter::New();
contour = vtkContourFilter::New();
//initialize the data collections to collect data in the various stages of
//the pipeline
vtkDataSetCollection *Data = vtkDataSetCollection::New();
vtkPolyDataCollection *PolyData = vtkPolyDataCollection::New();
vtkPolyDataCollection *Outlines = vtkPolyDataCollection::New();
// This loop reads the grids from a file and puts them into Data, the
//dataset collection.
for (int i=0; i<n; i++)
{
spr->SelectDataset(i);
spr->Update();
out = spr->GetOutput();
temp = (vtkStructuredPoints*)out->MakeObject();
temp->CopyStructure(out);
temp->GetPointData()->DeepCopy(out->GetPointData());
temp->GetCellData()->DeepCopy(out->GetCellData());
temp->ForceUpdate();
Data->AddItem(temp);
}
int NContours = 0;
Data->InitTraversal();
// This loop takes the grids from Data and processes them to get an outline
// and isosurface for each grid. The isovalue for the dataset is set to 0.86
// for now.
for (int j=0; j<n; j++)
{
float *x1, Iso;
temp = (vtkStructuredPoints*)Data->GetNextItem();
x1 = temp->GetPointData()->GetScalars()->GetRange();
Iso = 0.86;
//if the isovalue is out of bounds for a particular grid, then just
//ignore that grid.
if (Iso < x1[0] || Iso > x1[1])
continue;
NContours++;
//produce the isosurface and stick it into the PolyData collection.
contour->SetInput(temp);
contour->SetValue(0, Iso);
contour->Update();
contOut = contour->GetOutput();
t = (vtkPolyData*)contOut->MakeObject();
t->CopyStructure(contOut);
t->GetPointData()->DeepCopy(contOut->GetPointData());
t->GetCellData()->DeepCopy(contOut->GetCellData());
t->ForceUpdate();
PolyData->AddItem(t);
//produce a bounding box and put it into an Outlines collection
outline->SetInput(temp);
outline->Update();
outlineOut = outline->GetOutput();
t1 = (vtkPolyData*)outlineOut->MakeObject();
t1->CopyStructure(outlineOut);
Outlines->AddItem(t1);
}
PolyData->InitTraversal();
Outlines->InitTraversal();
//This loop takes care of the final mapper and actor steps of the pipeline
for (int k=0; k<NContours; k++)
{
//produce and add the isosurface actor
contMapper = vtkPolyDataMapper::New();
contMapper->SetInput(PolyData->GetNextItem());
contMapper->ImmediateModeRenderingOn();
contActor = vtkActor::New();
contActor->SetMapper(contMapper);
contActor->GetProperty()->SetRepresentationToSurface();
renderer->AddActor(contActor);
//produce and add the bounding box actor, which is colored RED
outlineMapper = vtkPolyDataMapper::New();
outlineMapper->SetInput(Outlines->GetNextItem());
outlineActor = vtkActor::New();
outlineActor->SetMapper(outlineMapper);
outlineActor->GetProperty()->SetColor(1.0, 0.0, 0.0);
renderer->AddActor(outlineActor);
}
// this part makes sure that something actually does show up on the screen
// w->show(argc, argv);
// w->begin();
// vtkwin = new Fl_vtk_Window( renWin, 1, 1, 498, 498);
// vtkwin->show(1, argv);
//w->end();
//return Fl::run();
//uncomment this and comment the FLTK stuff to use VTK window and event loop.
renWin->Render();
iren->Start();
}
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