[Paraview] Which polygon file reader in Paraview has interface to show/hide separate segments?

[Jimmy Chen]

Samuel,

Thank you very much for the quick reply.  I tried your EnSight example
and could select different polygons by using "Extract Blocks" filter.
VTK's example EnSight datasets also allows doing so.

Besides, *.vtp or *.pvtp files are not working for me.   What content
should be put into vtp files to enable Paraview "Extract Blocks"?  If
you also have a working vtp example that will be very helpful.

Thanks and best regards,
Jimmy

-------------------------------------------------------------
Date: Mon, 07 Oct 2013 09:03:40 -0600
From: Samuel Key <samuelkey at bresnan.net>
Subject: Re: [Paraview] Which polygon file reader in Paraview has
        interface to show/hide separate segments?
To: paraview at paraview.org
Message-ID: <5252CD4C.7090805 at bresnan.net>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

Jimmy,

I have had success with two different ParaView readers doing what you
have described.

It is material domains that I want to examine as distinct. However,
ParaView does not care if it is a serially-generated set of material
domain, a set of processor domain results, or any criterion you want to
use. Each domain needs to be a "displayable graphics object."

Case(1) *.vtp XML format

Case(2) EnSight Gold format using that format's Part-construct.

In either case, ParaView's Extract Group filter allows one to select any
combination of domains to display. Multiple extracted sub-domains can
appear together in one window and/or in separate windows.

A small file that will let you explore this capability is attached.

Samuel W Key
FMA Development, LLC
1005 39th Ave NE
Great Falls, Montana 59404
USA



On 10/6/2013 9:14 PM, Jimmy Chen wrote:
> Hello,
>
> We generate several segments of polygonal meshes and our client wants
> to store them into a single file and to view on Paraview.  Since the
> data contains several pre-segmented mesh pieces, they want to view
> each piece separately in Paraview. Is there a file format supporting
> composite datasets and has a Paraview interface to show some of them?
>
> We have looked into .vtp and .pvtp formats.
> For .vtp XML format, although we can store different segment in
> different <piece> tags, Paraview seem to regard them as one piece of
> data.
> For .pvtp format, each component is stored into a different file,
> which is not what our client want.
>
> Although we can always create our reader plugin for Paraview, I am
> wondering whether there already exists this kind of file format saving
> segments in one file, with a segment-selectable Paraview interface.
>
>
> Thanks and have a nice day.
> Jimmy Chen