[Paraview] hyperstreamline visualization

[Berk Geveci]

Can you post your xml file?

-berk

On Thu, Dec 18, 2008 at 7:08 AM, Pierre JUILLARD
<pierre.juillard at gmail.com> wrote:
>
> I'm really sorry, I miss a key on my keyboard, and there was it, the mail
> already left...
>
> So, I wanted first pointing out a possible interesting feature: having two
> buttons when dealing with plug-ins:
>
> - "select" having the functionality of the current "load" one: selection of
> an XML file
> - a "load" or "apply" button to confirm the selection of the XML file and
> maybe achieving some controls:
>                        - is the file empty?
>                        - does it start with the <ServerManagerConfiguration>
> tag?
>                        - and so on... (well, the standard controls that
> allow the use of an XML file I guess...)
>
>
>
> Then, here is my main question: I'm not sure at all the loading worked
> correctly:
> Where am I supposed to find the loaded filter to apply it on an example?
>
> I went in the Filter tab and I couldn't see it anywhere...
>
> (see attached picture)
>
> I am of course not interest in the vtkCellDerivatives lcass: I know that it
> is availabe with the filter "Compute Derivatives".
> It is just a test.
>
> Could you point me out where is the mistake?
>
> I have to say that I didn't use any GUI XML, as it is said being "optional"
> in the page:
> http://www.paraview.org/Wiki/Plugin_HowTo#Enabling_a_filter_in_VTK
>
>
>
> In addition, just for information: where does the name displayed in the
> Filter tab comes from?
> Is it the value of the "SourceProxy" tag \"name" attribute?
> In this case, are we forced to prepend "vtk" from the vtk class name to
> obtain it?
> It would indeed mean that we cannot have blank in the name.
>
>
>
> Concerning the wiki, I have also few questions.
>
> - First, once I have this working for HyperStreamLine, I guess that it may
> interest other users.
> Wouldn't it be interesting to have a section in the wiki where users could
> drop validated server manager configuration files for VTK classes that could
> then be downloaded by others?
>
> - Finally, I found the old page:
> http://www.paraview.org/Wiki/ExtendingParaView#Enable_Existing_VTK_Class
> more detailed than the new one.
> Shouldn't they be merged?
>
> Tell me if I can help on this topic.
>
>
>
>
> Cheers,
>
> Pierre
>
>
>
>
> 2008/12/18 Pierre JUILLARD <pierre.juillard at gmail.com>
>>
>> Hi all!
>>
>> I had a look on the wiki, and indeed, one can find information at the page
>> you pointed me:
>> http://www.paraview.org/Wiki/Plugin_HowTo#Enabling_a_filter_in_VTK
>> but also at that one:
>> http://www.paraview.org/Wiki/ExtendingParaView#Enable_Existing_VTK_Class
>>
>> Very interesting information are given, however, I think I am missing
>> something.
>>
>> Just to try out, I copy/past the given Server Manager Configuration file
>> in a xml, naming it "vtkCellDerivatives.xml".
>>
>> I loaded it as it is indicated (using the Plugins Manager), as shown on
>> the following picture.
>>
>> (By the way, I'm surprised that there is no confirmation of the correct
>> loading. It may be intersting to have two buttons:
>> - "select" having thefunctionality of the current "load" one: selection of
>> an XML file
>> - "load" or "apply" confirming the selection of the XL file and may
>> achieveing some control:
>>
>>
>>
>>
>>
>> 2008/12/9 David E DeMarle <dave.demarle at kitware.com>
>>>
>>> On Tue, Dec 9, 2008 at 9:55 AM, Pierre JUILLARD
>>> <pierre.juillard at gmail.com> wrote:
>>> >
>>> > Hi ParaView user,
>>> >
>>> >
>>> > Having stress tensor in VTK file, I would like to visualize them.
>>> >
>>> > Different solutions may exist:
>>> >
>>> >
>>> > 1). For instance, evaluate the principal components (vectors) from
>>> > stress
>>> > tensor and use the 'stream tracer' filter to visualize each principal
>>> > component individually. However, in the 'Calculator' filter, I see
>>> > neither
>>> > 'extract principal component' function, nor the possibility to interact
>>> > with
>>> > tensor at all: only the access to scalars and vectors is allowed.
>>> > Could you confirm me this?
>>> >
>>> >
>>> > 2). Another actually much more interesting way would be to use the
>>> > Hyperstreamline method available in the VTK library
>>> > (http://www.vtk.org/doc/release/5.2/html/a00565.html). Nonetheless, I
>>> > don't
>>> > see the equivalent filter in ParaView.
>>> > Is there a way to 'activate' it simply in ParaView?
>>> > Or should an external filter be developped (based on the existing VTK
>>> > class)?
>>> >
>>> >
>>> > I thank youfor your help!
>>> > Regards
>>> >
>>> >
>>> > Pierre
>>> > _______________________________________________
>>> > ParaView mailing list
>>> > ParaView at paraview.org
>>> > http://www.paraview.org/mailman/listinfo/paraview
>>> >
>>> >
>>>
>>>
>>> I  recommend solution 2.
>>> See
>>> http://www.paraview.org/Wiki/Plugin_HowTo#Enabling_a_filter_in_VTK
>>>
>>> --
>>> David E DeMarle
>>> Kitware, Inc.
>>> R&D Engineer
>>> 28 Corporate Drive
>>> Clifton Park, NY 12065-8662
>>> Phone: 518-371-3971 x109
>>
>
>
>
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