[Paraview] Trying to plot signals to paraview

[George Markomanolis]

Dear all,

I am newbie to Paraview and I want to ask you something. I am working with
signals and I use gnuplot for plotting. Unfortunately it's slow for big
signals. Our program is parallel so we can create files of many GBs. We do a
tricky parallel plot, every cpu plots a part of the signal, otherwise we
couldn't see the image from gnuplot (crash). So when I saw paraview I liked
a lot but it isn't easy.

I must explain what I want to plot:
We use a techinque in order to cut the points that haven't energy. For
example a specific signal with 12000 x 12000 mesh of points which is 8GB
file it can go under of 1GB if we cut the useless points. So I give at the
gnuplot only the points that I want to plot x,y,z and I use pm3d map because
I want them in 2D not 3D for example see the image:
http://www.markomanolis.com/files/plots/plot.jpg
I would like to ask. Is this unstructured grid? I show an easy signal it
could be with more random points. I have tried unstructured grid for 2
columns only and there is no surface between the columns. I used triangle
strip and it was ok but I don't know if I could see the details like here
(here I don't cut any useless point, in first image see wave details in the
center):    http://www.markomanolis.com/files/plots/62_0_0.jpg ,
http://www.markomanolis.com/files/plots/resFinal.jpg   .
Could I have these plots with paraview or it is good with more complicated
plots?
I must write a script/ program to convert gnuplot file to paraview but I am
not sure about the topology, I must declare the topolgy for every point,
right?  I am confused because I have a lot of constrains for example if a
point is alone then the topology is vertex if there is another point then
line etc... Is there any way to plot this grid with something like image
data. I want to give something like structured grid but NOT to give all the
points (I don't need them).  The last two images I sent you are with all the
points for education propose. I want to plot something like first image but
witho more complicated topology

Thank you for your time,
George Markomanolis
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