<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1458033338354_41751"><span>Hi,</span></div><div id="yui_3_16_0_1_1458033338354_41751"><span><br></span></div><div id="yui_3_16_0_1_1458033338354_41751"><span id="yui_3_16_0_1_1458033338354_41832">Thank you for your reply, I solved the problem. It turns out I was using the wrong python expression.</span></div><div id="yui_3_16_0_1_1458033338354_41751"><span><br></span></div><div id="yui_3_16_0_1_1458033338354_41751"><span>Regards,</span></div><div id="yui_3_16_0_1_1458033338354_41751"><span id="yui_3_16_0_1_1458033338354_41833">Islem Megdiche</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> Le Lundi 14 mars 2016 15h15, Utkarsh Ayachit <utkarsh.ayachit@kitware.com> a écrit :<br></font></div> <br><br> <div class="y_msg_container">What dataset are you using? Can you try reproducing the same with one<br clear="none">of the "Sources" or datasets in ParaViewData or sharing a sample<br clear="none">dataset to reproduce it? Attached state file works for me.<br clear="none"><div class="yqt4291199271" id="yqtfd40451"><br clear="none">On Mon, Mar 14, 2016 at 5:58 AM, Megdich Islem <<a shape="rect" ymailto="mailto:megdich_islem@yahoo.fr" href="mailto:megdich_islem@yahoo.fr">megdich_islem@yahoo.fr</a>> wrote:<br clear="none">> Hi<br clear="none">><br clear="none">> I applied the annotation filter algs.sum(algs.volume(inputs[0])), but I<br clear="none">> ended up with an error in the render view and output message stating that<br clear="none">> AttributeError:'None Type' object has no attribute 'GetCellData'. Does any<br clear="none">> one know what is the problem ?<br clear="none">><br clear="none">> Regards,<br clear="none">> Islem Megdiche<br clear="none">><br clear="none">> _______________________________________________<br clear="none">> Powered by www.kitware.com<br clear="none">><br clear="none">> Visit other Kitware open-source projects at<br clear="none">> <a shape="rect" href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br clear="none">><br clear="none">> Please keep messages on-topic and check the ParaView Wiki at:<br clear="none">> <a shape="rect" href="http://paraview.org/Wiki/ParaView" target="_blank">http://paraview.org/Wiki/ParaView</a><br clear="none">><br clear="none">> Search the list archives at: <a shape="rect" href="http://markmail.org/search/?q=ParaView" target="_blank">http://markmail.org/search/?q=ParaView</a><br clear="none">><br clear="none">> Follow this link to subscribe/unsubscribe:<br clear="none">> <a shape="rect" href="http://public.kitware.com/mailman/listinfo/paraview" target="_blank">http://public.kitware.com/mailman/listinfo/paraview</a><br clear="none">><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>