[vtkusers] VtkFitsReader Update Query

[Patrick Mulumba]

Good Morning/Afternoon/Evening All

 

I am busy developing a custom FITS image viewer with VTK and QT4.

 

I got hold of an old template from the following resource
http://www.visbox.com/prajlich/vtkFitsReader/

but I am struggling to compile because of the major changes from vtk over
the last decade or so.

 

I am rebuilding it from scratch into my current app but running into some
small problems.

I was able to get about 90% of it compiling but stuck with the following to
version conflicts.


Original source has the following:

vtkFloatScalars *scalars = vtkFloatScalars::New();

  scalars->Allocate(npixels);

 

but of course vtkFloatScalars has been removed and I have substituted it
with 

 

vtkFloatArray *scalars = vtkFloatArray::New();

  scalars->Allocate(npixels);

 

and this seems to work.

 

The big problem is finding the replacement for 

 

vtkStructuredPoints *output = (vtkStructuredPoints *) this->Output;

 

output->SetDimensions(naxes[0], naxes[1], naxes[2]);

  output->SetOrigin(0.0, 0.0, 0.0);

 

output->GetPointData()->SetScalars(scalars);

 

Now the big problem is the substitute for vtkStructuredPoints (apparently
its vtkImageData but its not compiling)

 

My Questions are as follows:

1)     What Is the appropriate substitute for vtkStructuredPoints in this
context?

2)     Is there an alternative FITS (Flexible Image Transport System) reader
for vtk or an updated vtkFitsReader class/function?

3)     An equivalent HDF5 reader instead of FITS .

 

Extra Info.

 

Original source code vtk version = vtk2.2

Current vtk version being used is= vtk5.4

 

Thanks in advance

 

Patrick.

 

 




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