[Paraview] Question about probe point data

[曹智选]

Thank you for your help.
1) As you said, it is not necessary to use "Resample With Dataset" filter.
Just "Probe Location" is enough.
2) I figured out why I got all zeros: because the input data I am using is
in .h5part format and they are just points data., no surface, no grid, no
volume.
3) The way to overcome this issue is use Delaunay3D to generate grid. Then
use "Probe Location".
Hope this will help someone who also has similar problems.


2016-02-12 12:40 GMT-05:00 Moreland, Kenneth <kmorel at sandia.gov>:

> The "Probe Location" and the "Resample With Dataset" filters actually use
> the same code underneath the covers. The only difference is how the
> geometry source is inputted (internally generated points for "Probe
> Location" and another dataset for "Resample With Dataset"). Also "Probe
> Location" is marked to by default show the results in a table view.
> However, you can show the results of "Probe Location" in a 3D view as well.
> Just select the 3D view and turn on its visibility.
>
> Anyway, the point of all that is that it should be unnecessary for you to
> run the "Resample With Dataset" filter. You should get the same data from
> the output of the "Probe Locations" filter.
>
> If all the field data in the output from "Probe Locations" are zero, then
> there is some reason why the filter could not find field data at the
> selected points. Once common problem is that the points are not actually
> located within the volume of your data. If your input data is actually a
> surface, then this is likely as it is hard to place points exactly on the
> surface. Another cause for problems that recently came up on the mailing
> list is issues with using an unstructured grid dataset that has voxel-type
> cells in it. The thread is captured here:
> http://markmail.org/message/t5vbs7opn43wtkdw.
>
> -Ken
>
> From: ParaView <paraview-bounces at paraview.org> on behalf of 曹智选 <
> hitcaozx at gmail.com>
> Date: Thursday, February 11, 2016 at 2:09 PM
> To: "paraview at paraview.org" <paraview at paraview.org>
> Subject: [EXTERNAL] [Paraview] Question about probe point data
>
> Hello,
> I am trying to probe point based data with Paraview.
> What I did is:
> 1) Create probe points with "ProbeLocations"
> 2) Then use "Resample With Dataset", choose input as the data that I have
> already had and source as "ProbeLocations" that I created in the previous
> step.
>
> The trouble that i have is:  All field data including coordinates are all
> zero.
>
> Could someone help me out?
>
> Thank you very much!
>
> Orman
>
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