[Paraview] Question on including material data

[cernmach]

Dear All,

I am new to paraview and its so vast I dunno where to start to learn. I want
to plot a microstructual unit cell comprising of more than one material.
The microstrcture is a cube discretized using a structured finite element
mesh and each finite element has one material property.
To cut short, how do I start to create a figure like the one that is on *the
right half of the figure*, in the following link

http://www.paraview.org/Wiki/images/7/71/ParaViewAlegraVnV.png

any help is appreciated.
thanks
mini
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