[vtkusers] create ImageData

[Sebastian Arkenau]

Hi,

i tried to create my own ImageData with visualisation in the vtkImageViewer.
This works fine with Type unsigned char. Then I tried the same example with
type float and it did not work. Here is the full example of my code.

vtkImageData *id = vtkImageData::New();
id->SetDimensions(256,256,256);
id->SetScalarTypeToUnsignedChar();
//id->SetScalarTypeToFloat()
id->AllocateScalars();
unsigned char *ptr = (unsigned char *) id->GetScalarPointer();      //the
same with float
for(int i=0;i<256;i++)
    for(int j=0;j<256;j++)
         for(int k=0;k<256;k++)
             *ptr++= i+j+k;
cout << id->GetScalarTypeMin() << endl;
cout << id->GetScalarTypeMax() << endl;
vtkImageViewer *view = vtkImageViewer::New();
view->SetInput(id);
view->SetColorWindow(400);
view->SetColorLevel(0);
for (int i=0;i<256;++i){
view->SetZSlice(i);
view->Render();
}
This works fine and the same example with float did not work?.

Is anybody outside who can help me??

Thanks


Sebastian Arkenau

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