[Paraview] .cosmo file format?

[David E DeMarle]

This is how Jon responded (with minor edits from me) off-list:
--------
The cosmo file format is simple, it is just a record format/list of
particles: 7 floats and 1 32-bit int per record/particle, no header.

x1 vx1 y1 vy1 z1 vz1 mass1 tag1
x2 vx2 y2 vy2 z2 vz2 mass2 tag2
x3 vx3 y3 vy3 z3 vz3 mass3 tag3
...
xN vxN yN vyN zN vzN massN tagN

x y z = particle position (float)
vx vy vz = particle velocity (float)
mass = scalar quantity (float)
tag = unique id (int)

You can have multiple files as well, as long as the file ends in a number,
or ends in a number before the cosmo tag, e.g.:

file1.cosmo
file2.cosmo
...
fileN.cosmo

or

file001
file002
file003

Lastly, the format is binary, not ascii.  So 32 bytes per particle, and the
size of your file will be N * 32 bytes.

-Jon

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109


On Mon, Nov 1, 2010 at 11:11 AM, Paul Melis <paul.melis at sara.nl> wrote:

> Hi,
>
> Is there some documentation on the file format "Cosmology files
> (.cosmo)" supported in PV? I've been reading "Analyzing and visualizing
> cosmological simulations with paraview" by Woodring et.al, where the
> cosmological support that was added to PV 3.8 is described. The .cosmo
> file format is mentioned, but the given reference where it is supposedly
> introduced doesn't mention it at all. Reading the parallel .cosmo reader
> and related source files doesn't give me a clearer picture either.
>
> Thanks,
> Paul
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://www.paraview.org/mailman/listinfo/paraview
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.paraview.org/pipermail/paraview/attachments/20101101/4d634a83/attachment.htm>