[Paraview] Plot over time splitting on IDs

[Berk Geveci]

Hi Eric,

This sounds like a bug to me too. I will investigate it soon.

-berk

On Tue, May 27, 2008 at 2:59 PM, Eric E. Monson <emonson at cs.duke.edu> wrote:
> Hey All,
>
> I have a collection of vertices that represent biological cells in a
> simulation, read into ParaView (cvs, OS X) as an unstructured grid. Because
> the number of cells in the sim changes over time, I have to use a global ID
> to keep track of cell identities for plotting, etc. Since the Xdmf and XML
> VTK formats do not assign real Global IDs, I set this using the Python
> Programmable Filter (GetPointData().SetGlobalIds()).
>
> If I want to plot some scalar over time I select a point, then shift the
> Selection Type to Global IDs in the Selection Inspector, then Create
> Selection. I do the Copy Active Selection in Plot (Extract) Selection Over
> Time and the Copied Selection pane displays the proper Global ID.
>
> The problem is that the Plot Selection over time splits the time series for
> that Global ID every time the scalar ID (or whatever you call the regular ID
> or Index) for that vertex changes value. This results in a bunch of blocks
> listed under Root in the Select Block pane of the Extract Selection Over
> Time "Display" tab, all of them labeled with the same Global ID (screen cap
> attached). Checking the box next to any one of them displays the short time
> series in the plot, during which the scalar "ID" was constant.
>
> So, for some reason the filter seems to be splitting the data into "Blocks"
> based on scalar ID even when the selection is made based on Global ID, and
> the data for that Global ID exists for the complete time series.
>
> This seems like a bug to me, but please let me know if I'm just
> misinterpreting something.
>
> Thanks,
> -Eric
>
> ------------------------------------------------------
> Eric E Monson
> Duke Visualization Technology Group
>
>
>
>
>
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