[Paraview-developers] [EXTERNAL] Re: Time-varying data reader

Sebastien Jourdain sebastien.jourdain at kitware.com
Fri Sep 7 13:19:53 EDT 2012 

Did you check in your reader that you get properly the file name of the
first file ? When you switch back to the first time ?

Seb

On Fri, Sep 7, 2012 at 1:04 PM, Joe Ping-Lin Hsiao <phsiao at cs.unc.edu>wrote:

> Besides the capital letters, another error is my gui xml has a
> mismatched source name. (Later I figure out that I don't need a gui
> xml for the reader to run.) Now I can load data without crash.
>
> But the problem remains. The animation plays fine at the first time.
> After it plays to the end, I click the 'Go back to the first frame'
> button, but the rendering still stays at the last frame even though in
> the information tab it says it's at frame 0. Am I missing something?
>
> Joe
>
> On Mon, Sep 3, 2012 at 10:12 AM, Sebastien Jourdain
> <sebastien.jourdain at kitware.com> wrote:
> > I've just fixed the wiki example to match the current ParaView version.
> >
> > The issue in your XML is due to the usage of capital letters in
> attributes
> > here:
> >
> >       <SubProxy>
> >         <Proxy name="Reader"
> >           ProxyGroup="internal_sources" ProxyName="bioformatsreadercore">
> >         </Proxy>
> >       </SubProxy>
> >
> > === Should be ===
> >
> >       <SubProxy>
> >         <Proxy name="Reader"
> >           proxygroup="internal_sources" proxyname="bioformatsreadercore">
> >         </Proxy>
> >       </SubProxy>
> >
> > Seb
> >
> > On Fri, Aug 31, 2012 at 12:58 PM, Joe Ping-Lin Hsiao <phsiao at cs.unc.edu>
> > wrote:
> >>
> >> It's me again.
> >>
> >> Turns out that my animation plugin is buggy. The symptom is after I
> >> play the animation once, it doesn't go back to the first animation
> >> position even I click rewind in ParaView. The frame number in the
> >> Information tab doesn't match what is currently rendered.
> >>
> >> When I go back to check my xml, I found I was overwriting the .vtk
> >> file series reader cause I just copied the whole SourceProxy section
> >> over and didn't change the name field. (I confirm this because
> >> ParaView doesn't recognize .vtk files anymore in the open file dialog
> >> if I load my reader.)
> >>
> >> But after I assign this file series reader proxy a new name, ParaView
> >> would just crash after I load files in and click 'Apply'. Also, the
> >> messages in my core reader are not printed out. It looks like ParaView
> >> is not using my core reader at all.
> >>
> >> I have attached my xml code below.
> >>
> >> <ServerManagerConfiguration>
> >>   <ProxyGroup name="internal_sources">
> >>     <SourceProxy name="bioformatsreadercore"
> >>                      class="BioFormatsReader"
> >>                                  label="BioFormats Reader">
> >>       <Documentation
> >>          long_help="Read Bio-Formats files."
> >>          short_help="Read Bio-Formats files.">
> >>       </Documentation>
> >>       <StringVectorProperty
> >>             name="FileName"
> >>             animateable="0"
> >>             command="SetFileName"
> >>             number_of_elements="1">
> >>         <FileListDomain name="files"/>
> >>         <Documentation>
> >>           This property specifies the input file name.
> >>         </Documentation>
> >>       </StringVectorProperty>
> >>
> >>     </SourceProxy>
> >>   </ProxyGroup>
> >>
> >>   <ProxyGroup name="sources">
> >>   <SourceProxy name="BioFormatsFileReader"
> >>                           class="vtkFileSeriesReader"
> >>                           label="Legacy VTK Reader"
> >>                           si_class="vtkSIFileSeriesReaderProxy"
> >>                           file_name_method="SetFileName">
> >>      <Documentation
> >>        short_help="Read legacy VTK files."
> >>        long_help="Reads files stored in VTK's legacy file format.">
> >>        The Legacy VTK reader loads files stored in VTK's legacy file
> >> format (before VTK 4.2, although still supported). The expected file
> >> extension is .vtk. The type of the dataset may be structured grid,
> >> uniform rectilinear grid (image/volume), non-uniform rectiinear grid,
> >> unstructured grid, or polygonal. This reader also supports file
> >> series.
> >>      </Documentation>
> >>       <SubProxy>
> >>         <Proxy name="Reader"
> >>           ProxyGroup="internal_sources"
> ProxyName="bioformatsreadercore">
> >>         </Proxy>
> >>       </SubProxy>
> >>
> >>      <StringVectorProperty name="FileNameInfo"
> >>         command="GetCurrentFileName"
> >>         information_only="1" >
> >>         <SimpleStringInformationHelper />
> >>      </StringVectorProperty>
> >>
> >>      <StringVectorProperty
> >>         name="FileNames"
> >>         clean_command="RemoveAllFileNames"
> >>         command="AddFileName"
> >>         animateable="0"
> >>         number_of_elements="1"
> >>         repeat_command="1"
> >>         information_property="FileNameInfo" >
> >>         <FileListDomain name="files"/>
> >>        <Documentation>
> >>          The list of files to be read by the reader. If more than one
> >> file is specified, the reader will switch to file series mode in which
> >> it will pretend that it can support time and provide one file per time
> >> step.
> >>        </Documentation>
> >>      </StringVectorProperty>
> >>
> >>      <DoubleVectorProperty
> >>         name="TimestepValues"
> >>         repeatable="1"
> >>         information_only="1">
> >>         <TimeStepsInformationHelper/>
> >>         <Documentation>
> >>           Available timestep values.
> >>         </Documentation>
> >>      </DoubleVectorProperty>
> >>
> >>      <Hints>
> >>       <ReaderFactory extensions="tif"
> >>           file_description="Legacy VTK files" />
> >>      </Hints>
> >>      <!-- End LegacyVTKFileReader -->
> >>    </SourceProxy>
> >>   </ProxyGroup>
> >>
> >> </ServerManagerConfiguration>
> >>
> >>
> >> On Fri, Aug 24, 2012 at 3:15 PM, Moreland, Kenneth <kmorel at sandia.gov>
> >> wrote:
> >> > In that case, someone should definitely update the wiki page.
> >> >
> >> > I see a note added by Jourdain on another page
> >> > (http://paraview.org/Wiki/ServerManager_XML_Hints#TimeSeries_readers)
> that
> >> > suggests a change in 3.12. Perhaps he can update the example.
> >> >
> >> > -Ken
> >> >
> >> > Sent from my iPad so blame autocorrect.
> >> >
> >> > On Aug 24, 2012, at 11:27 AM, "Joe Ping-Lin Hsiao" <phsiao at cs.unc.edu
> >
> >> > wrote:
> >> >
> >> >> It's working!
> >> >> I just followed the VTK reader code in readers.xml at
> >> >> ParaView3.14.1\ParaViewCore\ServerImplementation\Resources.
> >> >>
> >> >> Ken,
> >> >>  I first tried the xml code from the wiki, but I couldn't even read a
> >> >> file. I guess the xml scheme had changed in ParaView 3.14, and what's
> >> >> on the wiki is for older versions of ParaView.
> >> >>
> >> >> Thanks,
> >> >> Joe
> >> >>
> >> >> On Thu, Aug 23, 2012 at 6:43 PM, Moreland, Kenneth <
> kmorel at sandia.gov>
> >> >> wrote:
> >> >>> It looks like there is a Wiki page describing how to use the
> >> >>> vtkFileSeriesReader to convert a reader to understand file series.
> >> >>>
> >> >>> http://www.paraview.org/Wiki/Animating_legacy_VTK_file_series
> >> >>>
> >> >>> -Ken
> >> >>>
> >> >>>
> >> >>>
> >> >>> On 8/23/12 3:35 PM, "David E DeMarle" <dave.demarle at kitware.com>
> >> >>> wrote:
> >> >>>
> >> >>>> To make uniformly increasing time denoted in numbered file
> sequences,
> >> >>>> encapsulate your reader in a sub proxy of a vtkFileSeriesReader.
> See
> >> >>>> readers.xml for numerous examples of that.
> >> >>>>
> >> >>>> If you need nonuniform temporal spacing or need to improve upon the
> >> >>>> file series reader's IO performance, make your reader supply
> temporal
> >> >>>> information and respond to time requests appropriately in
> >> >>>> RequestInformation and RequestData respectively. See
> >> >>>> vtkTimeSourceExample for an example of that.
> >> >>>>
> >> >>>> David E DeMarle
> >> >>>> Kitware, Inc.
> >> >>>> R&D Engineer
> >> >>>> 21 Corporate Drive
> >> >>>> Clifton Park, NY 12065-8662
> >> >>>> Phone: 518-881-4909
> >> >>>>
> >> >>>>
> >> >>>> On Thu, Aug 23, 2012 at 5:22 PM, Joe Ping-Lin Hsiao
> >> >>>> <phsiao at cs.unc.edu>
> >> >>>> wrote:
> >> >>>>> Hi,
> >> >>>>>
> >> >>>>> I have written a customized reader in ParaView which reads 3D
> >> >>>>> stacks.
> >> >>>>> Now I'd like to add the function of reading time-varying data to
> it,
> >> >>>>> so I can create animations from stacks.
> >> >>>>>
> >> >>>>> ParaView has this function already. If I convert time-varying
> stacks
> >> >>>>> and name them stack001.vtk, stack002.vtk, and etc, ParaView would
> >> >>>>> recognize the sequence and load them in at once, and I'd be able
> to
> >> >>>>> play the animation just by clicking the 'Play' icon.
> >> >>>>>
> >> >>>>> I wonder is there any example of how to do that to a reader?
> >> >>>>>
> >> >>>>> Thanks,
> >> >>>>> Joe
> >> >>>>> _______________________________________________
> >> >>>>> Paraview-developers mailing list
> >> >>>>> Paraview-developers at paraview.org
> >> >>>>> http://public.kitware.com/mailman/listinfo/paraview-developers
> >> >>>> _______________________________________________
> >> >>>> Paraview-developers mailing list
> >> >>>> Paraview-developers at paraview.org
> >> >>>> http://public.kitware.com/mailman/listinfo/paraview-developers
> >> >>>>
> >> >>>
> >> >>>
> >> >>
> >> >
> >> _______________________________________________
> >> Paraview-developers mailing list
> >> Paraview-developers at paraview.org
> >> http://public.kitware.com/mailman/listinfo/paraview-developers
> >
> >
>
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