[Paraview] co-processing script with two datasource ...

[Andy Bauer]

I think you need inputdesc1 =
datadescription.GetInputDescriptionByName("input") and
datadescription.AddInput("input1") before you do
cpscript.RequestDataDescription(datadescription).

On Sat, Jun 20, 2015 at 4:15 PM, <u.utku.turuncoglu at be.itu.edu.tr> wrote:

> Hi,
>
> I am tying to run a ParaView pipeline that uses a dataset. In this case,
> the dataset has both three (time,y,x) and four (time,z,y,x) dimensional
> fields. In the pipeline, i am loading the same dataset twice (by changing
> dimensions in the properties window) to access different variables because
> i am using both 3 and 4 dimensional fields together to create final
> visualisation. Until, this point everything is fine and it works.
>
> Then, i am using co-processing plugin to export pipeline as Python script
> and wrote a driver to trigger visualisation pipeline (in Python). If i use
> only fields with 3 (or 4) dimension, then attached driver script works
> without any problem (driver_00.py) but if i use both 3 and 4 dimensional
> fields then i need to send two different dataset to DoCoProcessing routine
> but i could not make it work. I tried to create two different readers like
> following
>
> # read datasets
> reader1 = pvsimple.NetCDFReader(FileName=sys.argv[2])
> reader1.Dimensions = '(zlev, iy, jx)'
> reader1.SphericalCoordinates = False
> reader2 = pvsimple.NetCDFReader(FileName=sys.argv[3])
> reader2.Dimensions = '(iy, jx)'
> reader2.SphericalCoordinates = False
>
> then i tried to send both of them to coProcess
>
>     dset1 = reader1.GetClientSideObject().GetOutputDataObject(0)
>     dset2 = reader2.GetClientSideObject().GetOutputDataObject(0)
>
>     coProcess(dset1, dset2, time, step, sys.argv[1])
>
> by adding extra argument to the coProcess routine and run it as follows
>
>     cpscript.RequestDataDescription(datadescription)
>     inputdesc1 = datadescription.GetInputDescriptionByName("input")
>     if inputdesc1.GetIfGridIsNecessary() == False:
>         return
>     inputdesc1.SetGrid(grid1)
>
>     datadescription.AddInput("input1")
>     inputdesc2 = datadescription.GetInputDescriptionByName("input1")
>     if inputdesc2.GetIfGridIsNecessary() == False:
>         return
>     inputdesc2.SetGrid(grid2)
>
>     cpscript.DoCoProcessing(datadescription)
>
> but it is not working. Somehow, i need to add information about the 3 and
> 4 dimensional fields to data description object. Right? Anyway, my
> question is that how could i send two different dataset to my
> visualisation pipeline (coproc_01.py).
>
> Thanks,
> Regards,
>
> --ufuk
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