That's great.
This is very rough, but I was thinking of something like this after setting the
programmable filter Output Data Set Type to vtkTable (to test I've created a
Wavelet Source and run it through a Gradient filter, and then a Calculator
which creates a new value called RTGradMag, which is the magnitude of the
gradient vector, then the data is Contoured by RTData value with Compute
Scalars checked ON):
rt = inputs[0].PointData['RTData']
rtg = inputs[0].PointData['RTGradMag']
rt_set = sorted(set(rt.reshape((-1,)).tolist()))
sums = vtk.vtkDoubleArray()
sums.SetName('SummedValues')
sums.SetNumberOfComponents(1)
conts = vtk.vtkDoubleArray()
conts.SetName('ContourValues')
conts.SetNumberOfComponents(1)
for val in rt_set:
summed_val = sum(rtg[rt==val].reshape((-1,)).tolist())
conts.InsertNextValue(val)
sums.InsertNextValue(summed_val)
print val, summed_val
pdo = self.GetTableOutput()
pdo.AddColumn(conts)
pdo.AddColumn(sums)
On Sep 30, 2010, at 11:45 AM, Paul Edwards wrote:
> I've found out how to access the "Integrate Attributes" - I can import it
> from vtkPVFiltersPython :)
>
> On 30 September 2010 16:17, Paul Edwards <paul.m.edwa...@gmail.com> wrote:
> Hi Eric,
>
> You are right - I would like one row of integrated values per contour. I
> don't understand how I can do this without "Integrate Attributes" though.
>
> Regards,
> Paul
>
>
> On 30 September 2010 15:30, Eric E. Monson <emon...@cs.duke.edu> wrote:
> Could you be a bit more clear about what you're trying to do? It sounds like
> you're trying to take your contours and integrate some attributes over each
> of the contours separately so you get a table which contains as many rows as
> the number of contours (and maybe separate columns for each attribute)?
>
> As I was playing around I had trouble creating a programmable filter which
> has a polygonal mesh as input, but a vtkTable as output... Does anyone know
> if this is possible? Or, does vtkDataObjectToTable filter exist for ParaView
> so the data could be run through that before the programmable filter?
>
> If I'm understanding what you're trying to do, it seems like it should be
> possible to implement with a programmable filter if this piece can be
> accomplished, even without the Integrate Attributes filter.
>
> -Eric
>
> On Sep 30, 2010, at 10:20 AM, Paul Edwards wrote:
>
>> Ah - thanks for the tip!
>>
>> Does anyone know the way to call this in a programmable filter? Or, is it
>> even wrapped for python?
>>
>> Thanks,
>> Paul
>>
>> On 30 September 2010 14:51, Eric E. Monson <emon...@cs.duke.edu> wrote:
>> Hey Paul,
>>
>> I don't have an answer to your problem, but just wanted to point out that
>> vtkIntegrateAttributes is not part of VTK proper, but is listed on the
>> ParaView docs pages:
>>
>> http://www.paraview.org/ParaView3/Doc/Nightly/html/classvtkIntegrateAttributes.html
>>
>> -Eric
>>
>> ------------------------------------------------------
>> Eric E Monson
>> Duke Visualization Technology Group
>>
>>
>> On Sep 30, 2010, at 6:00 AM, Paul Edwards wrote:
>>
>>> Hi,
>>>
>>> I'm trying to create a table containing several rows of integrated values
>>> for different contours with a programmable filter but I can't see how to
>>> use the "Integrate Variables" filter. In filters.xml it show as being
>>> called vtkIntegrateAttributes but I cannot create this in python. Also,
>>> there is no webpage for this class on the nightly documentation site.
>>>
>>> Any help is appreciated,
>>> Paul
>>>
>>> On 30 September 2010 08:57, Biddiscombe, John A. <biddi...@cscs.ch> wrote:
>>> Sorry Paul. I must have clicked reply instead of replay-all. I intended to
>>> post to the list
>>>
>>>
>>> JB
>>>
>>>
>>>
>>> From: Paul Edwards [mailto:paul.m.edwa...@gmail.com]
>>> Sent: 30 September 2010 09:48
>>> To: Biddiscombe, John A.
>>> Subject: Re: [Paraview] plotting integrated values of cutting plane at
>>> various offsets
>>>
>>>
>>> Thanks John - I'll have a go with a python programmable filter today.
>>>
>>>
>>> Regards,
>>>
>>> Paul
>>>
>>>
>>> On 30 September 2010 07:19, Biddiscombe, John A. <biddi...@cscs.ch> wrote:
>>>
>>> Paul
>>>
>>>
>>> I’d knock up a filter which stores the desired value each time it executes,
>>> and increments the list by one on each execution. This would build up a
>>> list (in a polydata or vtkTable for example) which could then be plotted on
>>> a graph. A reset button on a custom panel can be used to clear the values.
>>> I’ve done this a couple of times for time related filters when I wanted to
>>> plot something unusual over T.
>>>
>>>
>>> JB
>>>
>>>
>>> From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org]
>>> On Behalf Of Paul Edwards
>>> Sent: 29 September 2010 15:53
>>> To: paraview
>>> Subject: [Paraview] plotting integrated values of cutting plane at various
>>> offsets
>>>
>>>
>>> Hi,
>>>
>>>
>>> I have created a contour and integrated the output to produce a single
>>> value. Is there a way to plot this value as the contour changes? I have
>>> created an animation for the isosurface but cannot see a filter that I
>>> could use to plot these values across the range.
>>>
>>>
>>> Thanks in advance,
>>>
>>> Paul
>>>
>>>
>>>
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>>
>
>
>
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