<div dir="ltr"><div><div><div>Hello,<br><br></div>There is no way to do such a thing in ParaView.<br></div>As a work around, what you could do is to transform your filter in a 'identity filter' (returning input as output) in the case the input data does not have the properties you need to process the data.<br><br></div>Joachim<br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><b>Joachim Pouderoux</b><font size="2">, PhD</font><br><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font size="1"><i>Technical Expert - Scientific Computing Team</i></font><br><b><font size="1"><a href="http://www.kitware.fr" target="_blank">Kitware SAS</a></font></b><br></blockquote>
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<br><div class="gmail_quote">2016-06-09 9:28 GMT+02:00 Björn Peeters <span dir="ltr"><<a href="mailto:b.peeters@aia.rwth-aachen.de" target="_blank">b.peeters@aia.rwth-aachen.de</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
a programmable filter I'm working on requires a specific cell data being<br>
loaded by the input dataset. Currently I'm checking in the<br>
RequestInformation function if it was loaded and show a vtkErrorMacro<br>
if it doesn't exist. After that the filter is shown in the pipeline and could<br>
be applied, which would result in another error.<br>
Is there any way to remove the filter from the pipeline or disable the<br>
'Apply' button directly after showing a message ?<br>
<br>
Thanks,<br>
Björn<br>
<br>
<br>
-- <br>
Björn Peeters<br>
<br>
Chair of Fluid Mechanics and Institute of Aerodynamics<br>
RWTH Aachen University<br>
Wüllnerstraße 5a, 52062 Aachen, Germany<br>
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