<div dir="ltr">Hi John,<div><br></div><div>UpdateInformation has never been called every time step. Overall, VTK's support for extent changing over time is not so great. There is a pipeline pass - REQUEST_TIME_DEPENDENT_INFORMATION() - that is called every time step. So your data source can update the extent information during that pass. However, note that not all filters will behave properly because they may allocate or set other information related to extent during RequestInformation. I have a long standing branch that aims to clean up extents, time support etc. and I hope to focus on getting that in over the next few months. The safest approach is to wrap your image data with a multi-block dataset currently.</div>
<div><br></div><div>Best,</div><div>-berk</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 11, 2013 at 7:56 AM, Biddiscombe, John A. <span dir="ltr"><<a href="mailto:biddisco@cscs.ch" target="_blank">biddisco@cscs.ch</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-GB" link="blue" vlink="purple">
<div>
<p class="MsoNormal">I have a dataset which is vtkImageData and it changes size over time. When animating this, the extent handling is breaking when the image changes size.<u></u><u></u></p>
<p class="MsoNormal">My initial attempts to fix it have failed and I suspect I need to force an update information at the renderwindow end when Update is called - the mappers are not honouring the extents (even outline filters are getting the shape wrong).<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">It used to be that information was updated on every time step. Did something change?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">It’s possible to replicate this by simply creating a wavelet {-10,10} and saving it as image_000.vti, then making the wavelet bigger {-10,20} and saving as image_001.vti. Now load them as a time series and step forward. The image is not
correctly displayed. One can verify by loading the image separately.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Where would be the correct place to force an UpdateInformation in the render process?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">thanks<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">JB<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">--
<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">John Biddiscombe, email:biddisco @.at.@ <a href="http://cscs.ch" target="_blank">cscs.ch</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New""><a href="http://www.cscs.ch/" target="_blank"><span style="color:windowtext">http://www.cscs.ch/</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">CSCS, Swiss National Supercomputing Centre | Tel: <a href="tel:%2B41%20%2891%29%20610.82.07" value="+41916108207" target="_blank">+41 (91) 610.82.07</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="IT-CH" style="font-size:10.0pt;font-family:"Courier New"">Via Trevano 131, 6900 Lugano, Switzerland | Fax: <a href="tel:%2B41%20%2891%29%20610.82.82" value="+41916108282" target="_blank">+41 (91) 610.82.82</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="IT-CH"><u></u> <u></u></span></p>
</div>
</div>
<br>_______________________________________________<br>
Paraview-developers mailing list<br>
<a href="mailto:Paraview-developers@paraview.org">Paraview-developers@paraview.org</a><br>
<a href="http://public.kitware.com/mailman/listinfo/paraview-developers" target="_blank">http://public.kitware.com/mailman/listinfo/paraview-developers</a><br>
<br></blockquote></div><br></div>