I followed 2 tutorials
(http://www.itk.org/Wiki/ParaView/Plugin_HowTo#Writing_Plugins,
http://www.kitware.com/media/html/WritingAParaViewReaderPlug-in.html)
but I feel like I missed some steps : this is not working.
I need to "catch" data (I can see in 2D/3D paraview viewer) to write
them into a specific file format. I am looking for the minimal
(simplest) way to do this : the only writer input is the file name, then
I would like to understand how to "get data from" paraview (from inside
a vtk object I guess ?), then I just will have to do the easy part which
is to write data to a specific format.
My understanding is that, first I need a CMakeLists.txt like :
~> more CMakeLists.txt
FIND_PACKAGE ( ParaView REQUIRED )
INCLUDE ( ${PARAVIEW_USE_FILE} )
ADD_PARAVIEW_PLUGIN ( myWriter "1.0" SERVER_MANAGER_XML myWriter.xml
SERVER_MANAGER_SOURCES myWriter.cpp )
In the same directory, I need a (minimal) myWriter.xml file that looks
like :
~> more myWrite.xml
<ServerManagerConfiguration>
<ProxyGroup name="WRITERS">
<SourceProxy name="MYWRITER" class="MYWRITER" label="my writer">
<Documentation short_help="my own writer"/>
<InputProperty>
<StringVectorProperty name="FileName" command="SETFILENAME"
number_of_elements="1"/>
</InputProperty>
<Hints>
<WriterFactory extensions="mw" file_description="my written file"/>
</Hints>
</SourceProxy>
</ProxyGroup>
</ServerManagerConfiguration>
My understanding is that somehow the xml subscribes my for a specific
callback I am called back on the "save data" button is cliked in the
GUI.
Still, in this same directory, I have myWriter.cpp and myWriter.hpp :
how to implement them ?
1. The myWriter class must define and implement a SetFileName method
because of the <StringVectorProperty> xml tag in myWriter.xml : right ?
wrong ?
This is the file name (including file path) one sets in the GUI :
right ? wrong ?
2. myWriter is supposed to derive from another class : which one ?
where to find it ?
3. How the myWriter implementation will "catch" data in paraview ?
Which method to override / re-implement ?
When I am called from paraview (triggered by the click on "save
data" button), I guess I am called on a specific method
"myWriter::cbMethod ( vtkXXX * pDataInParaviewViewer )"
What is this method ?
Also, at this step, I export
PV_PLUGIN_PATH=/mnt/users/houssen/Documents/solve-rel/paraview. When I
run paraview and use the "save data" button I get this :
Generic Warning: In
/.../Programs/ParaView/ParaView-v4.3.1-source/ParaViewCore/ServerManager/Core/vtkSMWriterFactory.cxx,
line 135
writers : myWriter has no input property.
... But I have an <InputProperty> tag in the xml : what's wrong ?
Can somebody help me on this ?
Franck
Note : I run Ubuntu and paraview-4.3
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