<HTML>
<HEAD>
<TITLE>Re: [Paraview] Problem with Compute Derivatives Filter</TITLE>
</HEAD>
<BODY>
<FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Yup. It looks like a bug. In fact, compute gradients seems to crash whenever the output tensor is set to nothing (and is otherwise valid). I submitted a bug for this:<BR>
<BR>
</SPAN></FONT><BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'><a href="http://www.paraview.org/Bug/view.php?id=10944">http://www.paraview.org/Bug/view.php?id=10944</a><BR>
</SPAN></FONT></BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'><BR>
Thanks for narrowing down the problem and reporting it.<BR>
<BR>
-Ken<BR>
<BR>
<BR>
On 7/6/10 4:43 PM, "Mohamad M. Nasr-Azadani" <<a href="mmnasr@gmail.com">mmnasr@gmail.com</a>> wrote:<BR>
<BR>
</SPAN></FONT><BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Hi Ken, <BR>
<BR>
I narrowed this problem down a bit. <BR>
So, this happens when I have the parameters set as<BR>
1- "Vorticity" as the Output Vector Type.<BR>
2- "Nothing" as the Output Tensor Type. <BR>
<BR>
If I choose "Strain" or "Vector Gradient" for the second part, it seems to work. <BR>
Attached, I also have added the vtr file I used. Feel free to test it to find the problem I had mentioned. <BR>
<BR>
Best, <BR>
Mohamad<BR>
<BR>
<BR>
On Tue, Jul 6, 2010 at 8:05 AM, Moreland, Kenneth <<a href="kmorel@sandia.gov">kmorel@sandia.gov</a>> wrote:<BR>
</SPAN></FONT><BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>It could be a bug, but I cannot replicate it. Any chance you could send some sample data?<BR>
<BR>
-Ken<BR>
<BR>
<BR>
<BR>
On 7/2/10 5:58 PM, "Mohamad M. Nasr-Azadani" <<a href="mmnasr@gmail.com">mmnasr@gmail.com</a> <<a href="http://mmnasr@gmail.com">http://mmnasr@gmail.com</a>> > wrote:<BR>
<BR>
</SPAN></FONT><BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Hi all, <BR>
<BR>
I am trying to compute the vorticity vector from a 2D dataset. <BR>
My dataset file is .vtr format. <BR>
This is what I do:<BR>
<BR>
>Calculator: to get u_vector = ux*iHat + uy*jHat<BR>
>Compute Derivatives: to get Vorticity<BR>
<BR>
As soos as I press Apply, Paraview crashes without any error. <BR>
I have used several versions of Paraview and I get the same problem on linux machines. <BR>
<BR>
Could this be a bug?<BR>
<BR>
Thanks, <BR>
Mohamad<BR>
<BR>
<BR>
</SPAN></FONT></BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'><BR>
</SPAN></FONT><FONT SIZE="2"><FONT FACE="Consolas, Courier New, Courier"><SPAN STYLE='font-size:10pt'><BR>
**** Kenneth Moreland<BR>
*** Sandia National Laboratories<BR>
*********** <BR>
*** *** *** email: <a href="kmorel@sandia.gov">kmorel@sandia.gov</a> <<a href="http://kmorel@sandia.gov">http://kmorel@sandia.gov</a>> <BR>
** *** ** phone: (505) 844-8919<BR>
*** web: <a href="http://www.cs.unm.edu/~kmorel">http://www.cs.unm.edu/~kmorel</a> <<a href="http://www.cs.unm.edu/%7Ekmorel">http://www.cs.unm.edu/%7Ekmorel</a>> <BR>
</SPAN></FONT></FONT><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'><BR>
</SPAN></FONT></BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'><BR>
<BR>
</SPAN></FONT></BLOCKQUOTE>
</BODY>
</HTML>