[Paraview] [EXTERNAL] Importing Vector (i.e., CSV text) files

[Scott, W Alan]

Just guessing here – you may have more spaces in the file than you think?  Or, PV may be looking for a space, and you have two?  That’s the reason I recommend commas.

Try this little toy problem that I use all the time:

x-coord y-coord z-coord scalar
0 0 0 0
1 0 0 1
0 1 0 2
1 1 0 2
-0.5 -0.5 1 4
-0.5 -0.5 1 5
-0.5 -0.5 1 6
-0.5 -0.5 1 7



From: Zach [mailto:zachnap at gmail.com]
Sent: Thursday, February 25, 2016 7:53 PM
To: Scott, W Alan
Cc: paraview at paraview.org
Subject: Re: [EXTERNAL] [Paraview] Importing Vector (i.e., CSV text) files

Alan,

I have tried the " ", and it didn't have the effect I had hoped for.

Yes, table to point makes points at the coordinates. I have vectors at certain pixel coordinates - processed PIV images. I have (x,y) location with a vector of velocity components (Ux, Uy) at those coordinates. The table to point seems to be wanting a scalar value at the location.

Thanks

Zach

On Thu, Feb 25, 2016 at 7:02 PM, Scott, W Alan <wascott at sandia.gov<mailto:wascott at sandia.gov>> wrote:
Zach,

Please keep this reply on list, so we all get to learn (and I get to be corrected when I mess up).

Try changing the Field Delimiter Characters string to be “ “

Table to point makes points (or dots).  I don’t understand your comment about vectors.

Alan

From: Zach [mailto:zachnap at gmail.com<mailto:zachnap at gmail.com>]
Sent: Thursday, February 25, 2016 4:26 PM
To: Scott, W Alan
Subject: Re: [EXTERNAL] [Paraview] Importing Vector (i.e., CSV text) files

I saw the comma separation, but very inconvenient not to have whitespace delimit. That means I have to go through 30,000 files and change the format - sure it only requires writing a script to change, but white space delimit is a fairly basic standard.

I have used the table to point filter, but I have vector data, the filter reads an X, Y, and Z value. I have x and y location and then Ux, and Uy. So, i have only been able to get dots at the x,y locations so far but no vectors.

Thanks for the help.

Zach

On Tue, Feb 23, 2016 at 9:57 PM, Scott, W Alan <wascott at sandia.gov<mailto:wascott at sandia.gov>> wrote:
I’m not sure if white space works – but comma’s do work.

For instance, X, Y, Z, Var does work.

Then, use the Table to Point filter.

There is more information here:  http://www.paraview.org/Wiki/Data_formats

Does that answer the question?

Alan

From: ParaView [mailto:paraview-bounces at paraview.org<mailto:paraview-bounces at paraview.org>] On Behalf Of Zach
Sent: Tuesday, February 23, 2016 7:47 PM
To: paraview at paraview.org<mailto:paraview at paraview.org>
Subject: [EXTERNAL] [Paraview] Importing Vector (i.e., CSV text) files

Hello:

I am trying to import vector files into Paraview which are really just csv text files delimited by whitespace. I am able to open the files, but they read in as a single column and I am unable to find the "delimit options" in any of the manuals or online materials.

Do vector files need to be formatted with a particular scheme in order for Paraview to properly read them? Thanks

Regards,

Zach


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