Hello, Even though I am able to obtain some data by first generating grid using "Delaunay3D" and then adding "Probe Location". But the problem is that these data that I obtained are questionable. For example, The coordinates of probe points is: -64 0 15 while the coordinate property (paraview treats all data including property data like velocity, density and coordinate as field data) interpolated based on probe location and grids that was generated is: 119 0 945 They are obviously different. I am not sue whether the "probed" value are values at the probe location computed by interpolation or not? It seems that the interpolation is did in a incorrect way and gives me some questionable data.
Is it possible that I can add probe locations without grids (the probe would be interpolation purely based on point data) and define my own way of interpolation, For example I can define kernel based collocation type of interpolation. Do you think this is possible (feasible) in paraview? 2016-02-12 12:58 GMT-05:00 曹智选 <[email protected]>: > 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 <[email protected]>: > >> 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 <[email protected]> on behalf of 曹智选 < >> [email protected]> >> Date: Thursday, February 11, 2016 at 2:09 PM >> To: "[email protected]" <[email protected]> >> 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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