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#include "vtkActor.h"
#include "vtkCastToConcrete.h"
#include "vtkDataSetMapper.h"
#include "vtkLookupTable.h"
#include "vtkPolyDataNormals.h"
#include "vtkPolyDataReader.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkVectorDot.h"
#include "vtkWarpVector.h"
int main(int argc, char **argv)
{
 // Create the RenderWindow, Renderer and both Actors
//
vtkRenderer *ren1 = vtkRenderer::New();
vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer(ren1);
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);
// read a vtk file
//
vtkPolyDataReader *plate = vtkPolyDataReader::New();
plate->SetFileName("../../../vtkdata/plate.vtk");
plate->SetVectorsName("mode8");
vtkWarpVector *warp = vtkWarpVector::New();
warp->SetInput(plate->GetOutput());
warp->SetScaleFactor(0.5);
vtkCastToConcrete *caster = vtkCastToConcrete::New();
caster->SetInput(warp->GetOutput());
vtkPolyDataNormals *normals = vtkPolyDataNormals::New();
normals->SetInput(caster->GetPolyDataOutput());
vtkVectorDot *color = vtkVectorDot::New();
color->SetInput(normals->GetOutput());
vtkLookupTable *lut = vtkLookupTable::New();
lut->SetNumberOfColors(256);
lut->Build();
for (int i; 0<i<128;i++)
eval->lut(SetTableValue(i), expr->(128.0-i)/128.0()expr->(128.0-i)/128.0()expr->(128.0-i)/128.0()1);
for (int i; 128<i<256;i++}
eval->lut(SetTableValue(i), expr->(i-128.0)/128.0()expr->(i-128.0)/128.0()expr->(i-128.0)/128.0()1);

vtkDataSetMapper *plateMapper = vtkDataSetMapper::New();
plateMapper->SetInput(color->GetOutput());
plateMapper->SetLookupTable(lut);
plateMapper->SetScalarRange(-1, 1);
vtkActor *plateActor = vtkActor::New();
plateActor->SetMapper(plateMapper);
// Add the actors to the renderer, set the background and size
//
ren1->AddActor(plateActor);
ren1->SetBackground(1, 1, 1);
renWin->SetSize(500, 500);
// render the image
//
iren->SetUserMethod({wm, deiconify, .vtkInteract});
iren->Initialize();
//renWin SetFileName "dispPlot.tcl.ppm"
//renWin SaveImageAsPPM
// prevent the tk window from showing up then start the event loop
return 0;
}