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

Joe Ping-Lin Hsiao phsiao at cs.unc.edu
Fri Sep 7 13:04:39 EDT 2012 

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
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>> >>>> http://public.kitware.com/mailman/listinfo/paraview-developers
>> >>>>
>> >>>
>> >>>
>> >>
>> >
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