[Paraview-developers] [EXTERNAL] Re: Time-varying data reader
Joe Ping-Lin Hsiao
phsiao at cs.unc.edu
Fri Aug 31 12:58:42 EDT 2012
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
>>>>
>>>
>>>
>>
>
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