[Paraview] custom filter?

[Dominik Szczerba]

Where can I find the file can.ex2 to try? I dont see it on the page.
-- Dominik


On Friday 05 September 2008 08:41:14 pm Moreland, Kenneth wrote:
> I suspect the problems you are having with transient data is the same bug
> reported in issue #7586.
>
>   http://www.paraview.org/Bug/view.php?id=7586
>
> -Ken
>
> On 9/4/08 9:25 AM, "Dominik Szczerba" <dominik at itis.ethz.ch> wrote:
> > Thanks for the detailed explanation.
> >
> > This does not seem ti work for transient datasets (it does the job for a
> > given timestep only).
> > In addition, display properties can not be stored (opacity, active color
> > scalars etc).
> > Or did I overlook something? Or do I need a more recent CVS? (mine is
> > early August)
> >
> > Thanks a lot,
> > Dominik
> >
> > On Thursday 04 September 2008 03:35:54 pm Utkarsh Ayachit wrote:
> >> Custom filter mechanism is designed to be used to combine a sub-pipeline
> >> into a single filter (or source) (with all the a paramter settings for
> >> each of the individual filters/sources) exposing a subset of the
> >> parameters to the user.
> >>
> >> Eg. Here's my pipeline:
> >> Sphere -> Shrink --> "Extract Edges"
> >>
> >> Suppose we want to combine the Shrink-->ExtractEdges into a new custom
> >> filter "ShrunkEdges".
> >>
> >> * Select the Shrink and the Extract Edges filter in the pipeline browser
> >> (use Ctrl key for multiple selections).
> >> * With the two filters selected, go to Tools menu and choose "Create
> >> Custom Filter"
> >> * The "Create Custom Filter" wizard will show up.
> >> * First give our filter a new name. This name must be unique and if
> >> conflicting an error message will be shown. We are calling this one
> >> "ShrunkEdges" (step1.png). Then click "Next".
> >> * We now choose what are the inputs to the custom filter that the user
> >> can set. By default, paraView will find the first filter in the
> >> sub-pipeline (in this case "Shrink") and expose it's "Input" property as
> >> the input to this custom filter. Since that's exactly what we want here
> >> (step2.png), click "Next".
> >> * Next we need to choose the outputs from this filter. By default,
> >> paraview will choose the last filter in the subpipeline (in this case
> >> 'ExtractEdges'. Let's say we want this custom filter to have two
> >> outputs, the output after the shrink stage as well as the one after
> >> extracting edges. ExtractEdges is already exposed as an output, we now
> >> expose the shrink filter as well. Select the "Shrink" in the left-side
> >> tree. It's output ports will be shown the "Output Port" combo. Choose
> >> the output port (relevant if the filter itself had more than 1 output
> >> ports), the assign it some unique name, say "ShrunkOutput" then press
> >> "+" to add it to the exposed outputs list (step3.png).  Click "Next".
> >> * Next we expose the subset of parameters on this custom filter that the
> >> user can change at run-time. Let's say we want to allow the user to
> >> change the "Shrink Factor" on the shrink filter. Select the "Shrink"
> >> filter in the tree and then select the property to expose in the
> >> "Property" combo, assign it some name (or use the default) and the hit
> >> "+" to expose it (step4.png). Once all required properties are exposed,
> >> click "Finish" to create a definition for the custom filter.
> >>
> >> The "Custom Filter Manager" will popup showing the newly defined custom
> >> filter. The manager is also available under the "Tools" menu. It can be
> >> used to remove/export/import custom filters.
> >>
> >> Close this dialog.
> >>
> >> Now to instantiate our new custom filter, simply look under the
> >> "Filters|Alphabetical" menu, we see our new "ShrunkEdges" filter. Now
> >> you can create it simply as if it were a normal filter.
> >>
> >> Same is true with sources, if no input property is exposed, it's treated
> >> as a source and is available under "Sources" menu.
> >>
> >> Utkarsh
> >>
> >> Dominik Szczerba wrote:
> >>> I have a complicated layout of filters on the left panel. How do I go
> >>> about saving them as a filter in PV CVS? (saving state does not work
> >>> for transient, fixing number current time steps). I tried 'create a
> >>> custom filter' but it is not comprehensive. I clicked around and ended
> >>> up nowhere. Any hints are appreciated.
> >>> PS. I dd not find anything on wiki, and can again no longer find a
> >>> search link to ML archives.
> >>>
> >>> best regards
> >
> > --
> > Dominik Szczerba, Ph.D.
> > Computational Physics Group
> > Foundation for Research on Information Technologies in Society
> > http://www.itis.ethz.ch
> > _______________________________________________
> > ParaView mailing list
> > ParaView at paraview.org
> > http://www.paraview.org/mailman/listinfo/paraview



-- 
Dominik Szczerba, Ph.D.
Computational Physics Group
Foundation for Research on Information Technologies in Society
http://www.itis.ethz.ch