Hello,
thanks for the quick response!
The one thing I am missing is where in your sprintf example
"this->FilePrefix" and "this->SliceNumber" comes from. In Paraview I get
an OpenFile Dialog which probably comes up because the plugin is defined
as a source. Maybe it is because there is an <FileListDomain> markup,
though.
When I then choose a file (actually I can select "image-..", for the
whole series) this is internally passed as the parameter to the
"SetFilePattern" Command in the JPEGReader Plugin (ist that so?). This
seems to be what I set up in the appropriate .xml file.
I do have to make sure that when this function is called the actual
FilePattern is passed that contains the image prefix. But editing the
.xml file I have no clue how to reference the filename which is of
course variable. (This would be the "this->FilePrefix" in your example)
and mix it up with these %s and %d (where I don't know how Paraview
fills them). Put together, I am somewhat lost.
Best regars,
Christian
Utkarsh Ayachit wrote:
If you look at the documentation for the class and the corresponding
methods : SetFilePrefix and SetFilePattern, you'll see that it
mentions what the pattern is supposed to be.
http://www.vtk.org/doc/nightly/html/classvtkImageReader2.html#a22d3f734323da8d5baaf798bbd7b4bc5
This FilePattern is indeed a sprintf syntax, I am not sure how come
you don't see the commonality.
sprintf(foo, "%s/image%d.jpeg", this->FilePrefix, this->SliceNumber)
will give you "<somepath>/image<some number>.jpeg" which is what the
reader tries.
There's nothing magical in the XML here. It's the reader that's
dictating how it decides to read the files or determine filenames etc.
You might want to look at the implementation of vtkImageReader2 to
understand more.
Utkarsh
On Mon, Feb 8, 2010 at 3:19 PM, Christian Werner
<[email protected]> wrote:
I am trying hard, but I just don't get the point. I'd love to read me
into
this .xml editing, but there's no source for that, except of the book
which
seems to be an overkill for my needs.
I feel that in "%s/image%d.jpg" some pointer to the real filename is
missing
(it does not work as such). %s seems to be the directory, %the slice
number,
so is there a variable like %f for the filename? I know the fprint
syntax
but I just can't see any commonality here.
If it happens that the book is the only source for a good
introduction to
this topic than somebody please tell me. I really do not intend to annoy
anyone, but I am having problems finding good documenation here, so I
chose
this Mailing List as a guide.
Best regards,
Christian
Utkarsh Ayachit wrote:
The problem seems to be that you are using the Pattern incorrectly. It
should be of the form: "%s/image%d.jpg" where %s gets replaced by the
directory while %d gets replaced by the slice number.
Utkarsh
On Sat, Feb 6, 2010 at 4:52 PM, Christian Werner
<[email protected]> wrote:
Hi there!
I'm having trouble getting the vtkJPEGReader to work properly as
plugin.
Specifically I don't know how to set up the approriate .xml file. It
works
with command="SetFileName" perfectly, but that way I am getting the
first
slice only. I see that one should use SetFilePrefix and/or
SetFilePattern,
but how can I make Paraview pass the appropriate parameters to the
plugin??
This is how my .xml looks like, it's just a guess, I really don't know
better:
<ServerManagerConfiguration>
<ProxyGroup name="sources">
<SourceProxy name="JPEGImageReader"
class="vtkJPEGReader"
label="JPEG reader">
<Documentation
short_help="Read a JPEG file."
long_help="Read a JPEG file into an image data.">
The JPEG image reader reads JPG files, and the output is a uniform
rectilinear (image/volume) dataset. The default file extension is
.jpg.
</Documentation>
#will become e.g. /home/christian/jpegs
<StringVectorProperty
name="Files"
animateable="0"
command="SetFilePrefix"
number_of_elements="1">
<FileListDomain name="files"/>
<Documentation>
This property specifies the File Prefix for the JPEG reader.
</Documentation>
<Hints>
<UseDirectoryName />
</Hints>
</StringVectorProperty>
#file pattern
<StringVectorProperty
name="Pattern"
animateable="0"
command="SetFilePattern"
number_of_elements="1"
default_value="/*.jpg">
</StringVectorProperty>
<!-- End JPEGImageReader -->
</SourceProxy>
</ProxyGroup>
</ServerManagerConfiguration>
With that, I get
Unable to open file /home/christian/jpges.0
when trying to open a set of jpges...
Does anyone have any idea? I'd also like to know where there is
documentation on all these markups like what you can put in <Hint>,
etc..
Best regards,
Christian
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