[Paraview] Help getting resetting cameras between batch viz runs

[Rick Muller]

Thanks for the help people gave me for the question below. I now have a
workable solution for much of the batch imaging I need to do.

I'd now like to add some surface rendering, that is, setting
>>> DataRepresentation.Representation = 'Surface'
>>> DataRepresentation.ColorArrayName = 'solution'

Previously, I had used the slice object to get the range of values and the
bounds:

>>> s = Slice(SliceType="Plane")
>>> m,M = s.CellData[0].GetRange()
>>> xmin,xmax,ymin,ymax,zmin,zmax =
s.GetDataInformation().DataInformation.GetBounds()

However, I no longer have the slice object. I have the DataRepresentation
object, and the RenderView, and the output of the ExodusIIReader() call.
I've also defined a number of elementblocks that I can set via:

>>> reader.ElementBlocks = ['a','b']

Can I use any of the available objects to get the data and the boundary
ranges?

Thanks in advance...


On Thu, Sep 1, 2011 at 3:46 PM, Rick Muller <rpmuller at gmail.com> wrote:

> I'm using the Python scripting facility in Paraview to do some batch
> visualization of some semiconductor models I'm simulating. The Start/Stop
> Trace feature is great, and I've already put together something quite
> usable. However, I can't figure out how to reset the camera between
> different simulations.
>
> The code coming out of the Trace feature looked something like:
>     rv = pv.GetRenderView()
>     rv.CameraFocalPoint = [0.223, -0.0160,-0.334]
>     rv.CameraParallelScale = 1.684
>     rv.CenterOfRotation = [0.223, -0.0160,-0.334]
>     rv.CameraPosition = [0.223, -0.0160, 4.105]
>     rv.CameraClippingRange = [5.308, 8.033]
> i.e. they already got the center of the object from some query to the
> objects already in the database. What would I have to do to get this
> information myself? I'm having a hard time finding info. I've tried reading
> the doctext for the Outline and OutlineCorners features, and I've seen a
> couple refs to a GetBounds command while googling around, but I can't find
> anything that really helps.
>
> My pipeline looks something like:
> * Use the ExodusIIReader to create a reader object
> * Use the aforementioned render view object to control the camera
> * Create a slice object in the z-direction at a certain height
> * Create a data representation and a colormap
> * Render the object.
> I can't tell which of the objects I would use for an Outline() or a
> GetBounds() call. For example, I get the min/max values for the data in the
> slice via
>     min,max = slice.PointData[0].GetRange()
> but using s or s.PointData with Outline() or GetBounds() doesn't get me
> anywhere. Can anyone nudge me in the right direction?
>
> Thanks,
> Rick
>
> --
> Rick Muller
> rpmuller at gmail.com
> 505-750-7557
>
>


-- 
Rick Muller
rpmuller at gmail.com
505-750-7557
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