[Paraview] hyperstreamline visualization

Thu Dec 18 17:35:18 EST 2008

Well, I exactly took the one printed on
http://www.paraview.org/Wiki/ExtendingParaView#Enable_Existing_VTK_Class

Here it is.

Thanks in advance for your help!

Pierre

2008/12/18 Berk Geveci <berk.geveci at kitware.com>

> 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
> >>
> >
> >
> >
> > _______________________________________________
> > ParaView mailing list
> > ParaView at paraview.org
> > http://www.paraview.org/mailman/listinfo/paraview
> >
> >
>
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