<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Thanks for the suggestion. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>It seems to be OK; however, I must correct what I was said before: the ParticleID variable start with a 1 index (not zero). Does that matter?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Should ParticleID be PointData or CellData? Does the way the polys are defined in the file matter here?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thank you for your help!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Charles<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Biddiscombe, John A. [mailto:biddisco@cscs.ch] <br><b>Sent:</b> Tuesday, March 06, 2012 11:31 AM<br><b>To:</b> Charles Boivin; paraview@paraview.org<br><b>Subject:</b> RE: Help with Particle Pathline filter...<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>I just tested it on one of my particle datasets and it worked fine. Can you verify that your particle Ids are actually sensible? Use the spreadsheet view to manually inspect them.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>Also check the max step distance isn’t set very small (but I guess if other settings produce pathlines then it must be ok).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'>JB<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:paraview-bounces@paraview.org">paraview-bounces@paraview.org</a> <a href="mailto:[mailto:paraview-bounces@paraview.org]">[mailto:paraview-bounces@paraview.org]</a> <b>On Behalf Of </b>Charles Boivin<br><b>Sent:</b> 06 March 2012 15:57<br><b>To:</b> <a href="mailto:paraview@paraview.org">paraview@paraview.org</a><br><b>Subject:</b> [Paraview] Help with Particle Pathline filter...<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a series of particle data files that I have written using the VTK XML PolyData file format (.vtp, I guess). I can use those to display the actual particles just fine with glyphs, but I’d like to also see a pathline being displayed for particles. I am therefore trying to use the ‘Particle Pathline’ filter.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The particles are simulated in a flow field, where new particles come in and older particles leave the system at every timestep. I therefore also have a ‘point data’ array called “ParticleID” which tags a unique ID to each particle (starting with a zero index). It is defined as such:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><PointData><o:p></o:p></p><p class=MsoNormal> <DataArray type="Int32" Name="ParticleID" NumberOfComponents="1" format="ascii"><o:p></o:p></p><p class=MsoNormal> …<o:p></o:p></p><p class=MsoNormal> </DataArray><o:p></o:p></p><p class=MsoNormal>… other arrays…<o:p></o:p></p><p class=MsoNormal></PointData><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When I try to use this array as the “Id Channel Array” in the filter, however, I get no output whatsoever from the filter. I think the rest of the file is correct because the filter DOES generate pathlines when I leave the “Id Channel Filter” to “Global or Local IDs”, but the paths get messed up as soon as some particles start leaving the domain (as they should, I guess). <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What am I doing wrong? Do I need to define this ‘ParticleID’ array differently?<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thank you for your help,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Charles Boivin<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>