Thank you for this clarification! Matthias
-----Ursprüngliche Nachricht----- Von: David E DeMarle [mailto:[email protected]] Gesendet: Donnerstag, 26. Juli 2012 17:12 An: Zenker, Dr. Matthias Cc: [email protected] Betreff: Re: [Paraview] Data saving in vtr format and compression On Thu, Jul 26, 2012 at 5:42 AM, Zenker, Dr. Matthias <[email protected]> wrote: > Hi, > > I need to convert legacy vtk files to vtr files. The vtk files are in ASCII > format and approx. 17 MB large. When I use binary or ASCII as data mode, I > get a file size of approx. 28 MB. When I use appended data mode without > encoding, it's 20 MB. When I use encoding with ZLib compressor (there is > only this one), the shinks to approx. 800 kB! Also data access is a lot > faster when I load that file in ParaView. > My questions: > > > Why does the file grow for most of the modes I have tried? Each double in the binary file is 8 bytes. In ascii, the size depends on the number of characters, which can be more or less than that. On my machine I see the same counterintuitive result, the binary is larger. > Is the ZLib compression used in ParaView lossless, or do I lose information > when I apply it? lossless. > > > Thanks for some explanations... > > Matthias > > > > _____________________________________________________________________ > ERBE Elektromedizin GmbH > Firmensitz: 72072 Tuebingen > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > Registergericht: Stuttgart HRB 380137 > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > _____________________________________________________________________ ERBE Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137 _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
