[Paraview] Track massive particles over time, particle ID is known

[timcfagan .]

And to color them, the temporal particles to pathline filter has particles
and pathlines separated. If you select solid color for either/both of them,
you can change it to what you like.

Also if you are having trouble viewing a large set of point data, perhaps
view them using the point sprites plugin. Load this in the Tools > Manage
Plugins.

On Fri, Feb 6, 2015 at 10:46 AM, timcfagan . <timcfagan at gmail.com> wrote:

> I've tried to do the same thing Chenshu, this is how I ended up doing it:
>
> open vtk particle file
> generate ids (possibly apply it even if they already have ids)
> extract entire dataset with particles through
> threshold by generated ids for the particles you want
> (This can be done multiple times to select multiple sets of points, then
> append datasets to combine them to one)
> Temporal particles to pathlines
>
> Unfortunately I haven't found a better way to actually select the
> particles other than through selecting them by particle ids. Just
> extracting a selection doesn't work properly with the pathlines filter. But
> you can extract a selection and view their ids in spreadsheet form. I was
> doing this, writing it down and then applying the threshold. Also the
> generate id's filter was applying them in layers in z, so you may find
> thresholding for z>0 is easy as it might be one threshold in the id's. You
> just need to find the right id number.
>
> Maybe someone knows a better way though...
>
> On Fri, Feb 6, 2015 at 1:17 AM, 303343023 <303343023 at qq.com> wrote:
>
>> *Hi everyone*
>> *   It troubles me for times. *
>> *   I have a series of particles vtk files at different time step. And I
>> want to track certain particles and extract them or color them with a
>> uniform color. I tried to use "find data" and include the particle id with
>> "is one of " option. However, it crashed due to overload of compute
>> capacity. About 8 thousand particles is intended for tracking.*
>> *   Furthermore, at the begining, the particles of interest located at
>> the upper layer, coordinatesZ>0, for example. And I want to extract them
>> from the whole.*
>> *  Could any one help me? Thanks in advance!*
>>
>> Chenshu Hu
>>
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