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<div>That sounds like a job for the "Temporal Particles To Pathlines" filter. <br>
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<div>-Ken</div>
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Sent from my iPad so blame autocorrect.</div>
<div><br>
On Nov 14, 2016, at 10:54 AM, David I. Robinson <<a href="mailto:d.robinson@hrwallingford.com">d.robinson@hrwallingford.com</a>> wrote:<br>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C">I’m trying to visualise lagrangian particle pathlines. I have run an openFoam simulation with particle tracking and would like to view the paths that the particles
take. I have read lots of discussion of this on the internet, but without much success. I can load the data in Paraview and assign glyphs, but I can’t visualise the pathlines taken by the particles.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C">I am cautious that Paraview might have some functionality for interpolating particle tracking from the eulerian data. I might end-up visualising this approximation,
rather than the lagrangian data calculated on a timestep-by-timestep basis by openFoam. (Although an ability to do either or both would be useful!)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C">So far, my best luck seems to have come from masking my data and then using the particlepath filter, using the un-masked data as my input and the masked data
as a seed. This is OK, but requires me to incrementally increase the finished time to observe the particle paths.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C">Can you offer any help?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C;mso-fareast-language:EN-GB">Dr David Robinson</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#3C3C3C;mso-fareast-language:EN-GB"><br>
Engineer, Coastal Structures<br>
<br>
E: <a href="mailto:d.robinson@hrwallingford.com"><span style="color:black">d.robinson@hrwallingford.com</span></a><br>
T: +44 (0)1491 822397<o:p></o:p></span></p>
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