[vtkusers] higher dimensional histogram with vtkImageAccumulate?

[Adrian Albert]

Dear All,

I am trying to construct a 'volumetric histogram', that is, a histogram of 2
or 3 dimensions using vtkImageAccumulate.
I have a multi-component vtkStructuredGrid object, whose scalar fields are
my data space. I want to divide this data space (say a 2D data space of
fields p and T) into uniform bins and count how many points (p, T) fall into
each of these bins of the kind [p1...p2]x[T1...T2].
The documentation of the vtkImageAccumulate class is not clear: does it
support such an operation? It claims that is supports histograms of 1, 2 and
3 dimensions.
However, it does not specify how exactly such 'higher dimension' histograms
are computed: maybe it counts occurances for each fields individually and
spits out several 1D histograms, one for each component?

Any help will be of course greatly appreciated.

Adrian

-- 
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Adrian Albert
School of Engineering and Science
Jacobs University Bremen
Germany
Tel.: 00494212003258
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