cell array, mkoctfile and vtk

[Philipp.Batchelor]

Hello

I want to write c++ .oct octfiles linked with VTK, (Visualization 
Toolkit), in order to use some VTK features in octave. And this works, 
in the sense I have for example used a vtkPNGReader (there are easire 
ways to read a png in octave for sure) to read a png file. The octave 
output was a Matrix object. (I should point out that I just started 
writing oct files, I just had a look at the oregonator example, and 
'guessed' there must be a class called Matrix).

Now, most of the applications I would have in mind would be 
multidimensional in some sense, e.g. doing a volume rendering, or tensor 
images etc...i.e. would require some form of multidimensional array, and 
I thought of using cell arrays:

img{sl} contains slice sl,

and this seems fine in a .m file, but if for example the volume is read 
in c++, it would require to create the cell array inside the c++ 
octfile; so, my question is: what is the octave syntax in c++ for 
assignments like

img{n}(i,j) = voxel_value
etc...

I tried to grep and google, but couldn't pinpoint this. Of course, in 
the long term multidimensional arrays will be the solution.

Anyone has a suggestion?

By the way, not sure I'm using the correct mailing list for this 
questions, apologies if it's the wrong one

Ph



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