[Paraview] Causes for multiple execution of RequestData in rendering Pipeline

[Moreland, Kenneth]

I have no idea.  Maybe Berk knows something about the executive that would explain the multiple executions.

-Ken

> -----Original Message-----
> From: paraview-bounces+kmorel=sandia.gov at paraview.org [mailto:paraview-
> bounces+kmorel=sandia.gov at paraview.org] On Behalf Of Mike Jackson
> Sent: Monday, February 11, 2008 7:29 AM
> To: ParaView
> Subject: Re: [Paraview] Causes for multiple execution of RequestData in
> rendering Pipeline
>
> Nope. Inserting a print statement as the first and next to last lines
> in RequestData() says the modified times are the same. My RequestData
> method is being run 6 times in succession.
>
> Could this have something to do with UPDATE_EXTENTS and UPDATE_WHOLE
> extents?
>
> Also, I do see the following 2 debug statements between Each
> Successive RequestData() call:
>
> **----RequestData Ending Modified Time: 64511
> Debug: In /Users/Shared/Kitware-CVS/ParaView3/VTK/Filtering/
> vtkAlgorithm.h, line 151
> vtkH5RoboMetReader (0x1eb63c60): vtkH5RoboMetReader (0x1eb63c60):
> returning AbortExecute of 0
>
>
> Debug: In /Users/Shared/Kitware-CVS/ParaView3/VTK/Filtering/
> vtkAlgorithm.h, line 150
> vtkH5RoboMetReader (0x1eb63c60): vtkH5RoboMetReader (0x1eb63c60):
> setting AbortExecute to 0
>
> **--- RequestData Starting      Times=6 Modified Time: 64511
>
>
> But since the Modified times are the same I am assuming that this
> isn't really the problem?
>
>
> On Feb 11, 2008, at 8:42 AM, Moreland, Kenneth wrote:
>
> > My guess is that somewhere in your RequestData method the algorithm
> > is calling Modified on itself.  The call is probably indirect.  For
> > example, if you are using any of the Set* methods defined by VTK
> > macros, that will indirectly call Modified.
> >
> > To check this, try printing out the time stamp (this->MTime.GetMTime
> > ()) at the beginning and the end of RequestData.  It should be the
> > same.  If not, narrow down where it is changing.
> >
> > -Ken
> >
> >> -----Original Message-----
> >> From: paraview-bounces+kmorel=sandia.gov at paraview.org
> >> [mailto:paraview-
> >> bounces+kmorel=sandia.gov at paraview.org] On Behalf Of Mike Jackson
> >> Sent: Monday, February 11, 2008 6:35 AM
> >> To: ParaView
> >> Cc: Mike Jackson
> >> Subject: [Paraview] Causes for multiple execution of RequestData in
> >> rendering Pipeline
> >>
> >> Working with my custom reader I am trying to track down what I think
> >> is a bug somewhere in the combination of my requestInformation/
> >> RequestData methods. When my reader gets loaded, my requestData
> >> method gets fired multiple times (up to 8 in a row it seems). I was
> >> wondering what some of the reasons for this might be so that I might
> >> be able to figure this out.
> >>
> >> Thanks for any help
> >>
> >> --
> >> Mike Jackson
> >> imikejackson & gmail * com
> >>
> >>
> >>
> >>
> >> _______________________________________________
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> >> ParaView at paraview.org
> >> http://www.paraview.org/mailman/listinfo/paraview
> >
> >
> >
>
> --
> Mike Jackson   Senior Research Engineer
> Innovative Management & Technology Services
>
>
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