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Ok both solutions works well, although MergeBlock makes a conversion, which could actually be desirable.<div>This raises a question: except from being a more economic storage scheme, is there any benefit of having a curvilinear grid rather than an unstructured one, regarding algorithm complexity? My particular concern is to determine which cells of 2 grids intersect the other grid.</div><div>Anyway thx for your help.</div><div><br><div>> From: dave.demarle@kitware.com<br>> Date: Tue, 8 Nov 2011 12:53:25 -0500<br>> Subject: Re: [Paraview] Bug in ExtractBlock?<br>> To: stan1313@hotmail.fr<br>> CC: utkarsh.ayachit@kitware.com; paraview@paraview.org<br>> <br>> Actually, a better solution is to apply the Merge Blocks filter after<br>> the Extract Block filter. Then you shouldn't have to save and reopen.<br>> <br>> But to answer your question, save it as a vtm file and then open up<br>> the directory pointed to by the .vtm file and open up the one vtk file<br>> inside.<br>> <br>> David E DeMarle<br>> Kitware, Inc.<br>> R&D Engineer<br>> 21 Corporate Drive<br>> Clifton Park, NY 12065-8662<br>> Phone: 518-881-4909<br>> <br>> <br>> <br>> On Tue, Nov 8, 2011 at 12:43 PM, Fred Fred <stan1313@hotmail.fr> wrote:<br>> > Hmmm, how do you do it?<br>> > If I use the Save Data submenu, I am asked to save it as a multi-block<br>> > dataset and, as expected, I get back a multiblock dataset when I read it<br>> > again!<br>> ><br>> >> From: dave.demarle@kitware.com<br>> >> Date: Tue, 8 Nov 2011 07:20:47 -0500<br>> >> Subject: Re: [Paraview] Bug in ExtractBlock?<br>> >> To: utkarsh.ayachit@kitware.com<br>> >> CC: stan1313@hotmail.fr; paraview@paraview.org<br>> >><br>> >> A work around is to write out the data and read it back in.<br>> >><br>> >> David E DeMarle<br>> >> Kitware, Inc.<br>> >> R&D Engineer<br>> >> 21 Corporate Drive<br>> >> Clifton Park, NY 12065-8662<br>> >> Phone: 518-881-4909<br>> >><br>> >><br>> >><br>> >> On Tue, Nov 8, 2011 at 7:15 AM, Utkarsh Ayachit<br>> >> <utkarsh.ayachit@kitware.com> wrote:<br>> >> > Nope, that's expected behavior. ExtractBlock will always still produce<br>> >> > a multi-block dataset. Without going too much into details, the<br>> >> > requirements of VTK pipeline make it tricky to write a filter that<br>> >> > produces a structured data-set from by extracting a block from a input<br>> >> > composite dataset.<br>> >> ><br>> >> > On Mon, Nov 7, 2011 at 6:38 AM, Fred Fred <stan1313@hotmail.fr> wrote:<br>> >> >> Hello,<br>> >> >> I have a dataset that is actually a multi-block with just a single<br>> >> >> curvilinear block and I would like to convert it in a simple<br>> >> >> curvilinear<br>> >> >> dataset. I expected that ExtractBlock would make the job, since it is<br>> >> >> supposed to delete the umbrella structure when just a single block<br>> >> >> remains<br>> >> >> and the Prune Output option is selected, which is teh default BTW.<br>> >> >> But the output is exactly the same as the input.<br>> >> >> Bug of the ExtractBlock implementation?<br>> >> >> Configuration: ParaView-3.10.1 64 bits Mac OsX Snow Leopard<br>> >> >><br>> >> >> _______________________________________________<br>> >> >> Powered by www.kitware.com<br>> >> >><br>> >> >> Visit other Kitware open-source projects at<br>> >> >> http://www.kitware.com/opensource/opensource.html<br>> >> >><br>> >> >> Please keep messages on-topic and check the ParaView Wiki at:<br>> >> >> http://paraview.org/Wiki/ParaView<br>> >> >><br>> >> >> Follow this link to subscribe/unsubscribe:<br>> >> >> http://www.paraview.org/mailman/listinfo/paraview<br>> >> >><br>> >> >><br>> >> > _______________________________________________<br>> >> > Powered by www.kitware.com<br>> >> ><br>> >> > Visit other Kitware open-source projects at<br>> >> > http://www.kitware.com/opensource/opensource.html<br>> >> ><br>> >> > Please keep messages on-topic and check the ParaView Wiki at:<br>> >> > http://paraview.org/Wiki/ParaView<br>> >> ><br>> >> > Follow this link to subscribe/unsubscribe:<br>> >> > http://www.paraview.org/mailman/listinfo/paraview<br>> >> ><br>> ><br></div></div> </div></body>
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