<div dir="ltr"><div>Hi Ken,<br><br>It looks like the file was too large to be broadcast to the list, but I think it should have gone to you directly. <br><br></div><div>Thanks again for your help,<br></div><div><br></div>Paul<br>
<div class="gmail_extra"><br><br><div class="gmail_quote">On 8 November 2013 08:35, Paul Graham <span dir="ltr"><<a href="mailto:meteorpaul@gmail.com" target="_blank">meteorpaul@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div>Hi Ken,<br><br></div>I have attached a sample of the data to this message along with the saved Paraview state. Hopefully this will help diagnose why it is not working.<br><br>Thanks again for your help.<span class="HOEnZb"><font color="#888888"><br>
<br></font></span></div><span class="HOEnZb"><font color="#888888">Paul</font></span><div><div class="h5"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On 8 November 2013 02:46, Moreland, Kenneth <span dir="ltr"><<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="font-size:14px;font-family:Calibri,sans-serif;word-wrap:break-word">
<div>
<div>
<div>Would it be possible to send a small example of your data to the list so we could try it out? If not, could you at least send a screen shot so we could have a look at the mesh? Right now I'm just making blind guesses.</div>
<div><br>
</div>
<div>-Ken</div>
<div>
<div><br>
</div>
</div>
</div>
</div>
<div><br>
</div>
<span>
<div style="border-right:medium none;padding-right:0in;padding-left:0in;padding-top:3pt;text-align:left;font-size:11pt;border-bottom:medium none;font-family:Calibri;border-top:#b5c4df 1pt solid;padding-bottom:0in;border-left:medium none">
<span style="font-weight:bold">From: </span>Paul Graham <<a href="mailto:meteorpaul@gmail.com" target="_blank">meteorpaul@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, November 7, 2013 1:26 AM<br>
<span style="font-weight:bold">To: </span>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] Re: [Paraview] Stream Tracer Problem<br>
</div><div><div>
<div><br>
</div>
<div>
<div>
<div dir="ltr">
<div>
<div>
<div>Hi Ken,<br>
<br>
</div>
Thanks for your suggestions. I still haven't worked out why it's not working, but I notice that no data is registering in the Stream Tracer filter. It's mesh is empty - no points or cells - and the bounding information not available.<br>
<br>
I tried a high density Line Source, as you suggested, as well as increasing the number of seed points within the radial ball of the Point Source but without success. However, both the Line Source and the Point Source correctly display within the domain of
the 3D vector field.<br>
<br>
</div>
The vectors themselves (from the glyph filter) display correctly.<br>
<br>
</div>
<div>Paul</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On 7 November 2013 09:05, Moreland, Kenneth <span dir="ltr">
<<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="font-size:14px;font-family:Calibri,sans-serif;word-wrap:break-word">
<div>
<div>
<div>That is not a lot of detail to go on so I have to guess what the problem is. It is probably either that the seeds are not intersecting the mesh or that vectors do not yield good lines.</div>
</div>
</div>
<div><br>
</div>
<div>If you mesh is very thin or comprises surface elements, then chances are all the seed points are outside your mesh. The default point source is actually a point cloud with randomly selected points within a sphere of a certain radius. If your mesh is flat,
the chance of any seed happening to hit it are extremely low. Try changing to a line source and see if that helps.</div>
<div><br>
</div>
<div>It could be that the vectors your creating are not integrating well. It could be that the vectors are pointing off of the mesh (which is also common in thin or flat meshes). Thus it dies before it starts. Or perhaps it has some other feature that makes
it difficult to integrate.</div>
<div><br>
</div>
<div>-Ken</div>
<div><br>
</div>
<span>
<div style="border-right:medium none;padding-right:0in;padding-left:0in;padding-top:3pt;text-align:left;font-size:11pt;border-bottom:medium none;font-family:Calibri;border-top:#b5c4df 1pt solid;padding-bottom:0in;border-left:medium none">
<span style="font-weight:bold">From: </span>Paul Graham <<a href="mailto:meteorpaul@gmail.com" target="_blank">meteorpaul@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, November 6, 2013 2:40 PM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] [Paraview] Stream Tracer Problem<br>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div>
<div dir="ltr">
<div>
<div>Hi Everyone,<br>
<br>
I am unable to display a Stream Tracer and not sure what is going wrong. After creating a vector field using the Calculator Filter, I added the Stream Tracer filter using a point source seed (default setting). The point source origin is displayed but nothing
else. Can anyone help me as to what I have to do to get the stream lines to show?<br>
<br>
</div>
Thanks in advance,<br>
<br>
</div>
Paul<br clear="all">
<div>
<div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</span></div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</div></div></span>
</div>
</blockquote></div></div></div></div></div>
</blockquote></div><br></div></div>