Once again: I just see that I received more information than just the assertion error:
"" Traceback (most recent call last): File "<string>", line 4, in <module> File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\paraview\calculator.py", line 122, in execute variables = get_arrays(inputs[0].GetAttributes(self.GetArrayAssociation())) File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\paraview\calculator.py", line 34, in get_arrays arrays[varname] = attribs[key] File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\paraview\vtk\numpy_interface\dataset_adapter.py", line 587, in __getitem__ return self.GetArray(idx) File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\paraview\vtk\numpy_interface\dataset_adapter.py", line 599, in GetArray array = vtkDataArrayToVTKArray(vtkarray, self.DataSet) File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\paraview\vtk\numpy_interface\dataset_adapter.py", line 138, in vtkDataArrayToVTKArray narray = numpy_support.vtk_to_numpy(array) File "D:\Users\cbockenm\Documents\BTest\ParaView\OwnBinaries\ParaView 5.1.2\lib\site-packages\vtk\util\numpy_support.py", line 214, in vtk_to_numpy "Unsupported array type %s"%typ AssertionError: Unsupported array type 15 "" It does not help me a lot, but maybe it indicates to somebody else what might be the problem!? Regards, Cornelis 2017-01-17 11:08 GMT+01:00 Cornelis Bockemühl <cornelis.bockemu...@gmail.com >: > Thanks again Andy! > > I really appreciate your hints: It has already pointed me into a good > direction! > > Actually what I tried for my purpose was: > > 1. do a selection, apply the "extract selection" filter, with the "keep > topology" option on. With this I am getting just one additional column - > "vtkInsidedness" - and this tells me whether in the initial data (actually > cells of an "unstructured grid") an item was selected (value 1) or not > (value -1). > > 2. on top of this I applied the "calculator" filter like you suggested, > and with just an if(1=vtkInsidedness, ...) I could get exactly what I > wanted! > > Bottom line: these two filters are actually my friends for the purpose! > > Only two things I am still struggling: > > 1. if I want this procedure to be a bit more simple I should maybe still > write some kind of "wrapper filter" that does the above steps for me just > in one. Like derive one filter from the calculator, including the nice > calculator panel on the left, and just automatically do the "extract > selection" before applying the calculator > > 2. with the "python calculator" I was not successful, and I wonder why!? > Because if I applied that python calculator to my original "unstructured > grid" data set everything worked fine (so it is not about missing python > support!), but if I did the procedure as above, applying the "python > calculator" on the extracted data, I always got a message: "AssertionError: > Unsupported array type 15". This was independent on what was the expression > I tried to apply, even if it was just a constant value! Looking into the > source code it looks indeed like a mistake if some column has "type 15": I > found only about 10 type definitions at all... > > Regards, > Cornelis > > 2017-01-17 10:51 GMT+01:00 Andy Bauer <andy.ba...@kitware.com>: > >> Hi Cornelis, >> >> How would you like to select the single or group of values to change? >> Also, how would you like to change them (e.g. the same transformation for >> each or each with its own transformation)? These two questions are meant to >> guide you to do what you want in ParaView. >> >> You probably want to look at the Python Programmable Filter ( >> http://www.paraview.org/Wiki/Python_Programmable_Filter) for changing >> individual array values. If you are working in serial you may also be able >> to bring in the entities to change based on a selection. A better solution >> would be to use the global ids filter, then do a selection on what you want >> and finally pass that in as a secondary input to the Python Programmable >> filter. >> >> Developing your own filter is also a possibility. >> >> cheers, >> Andy >> >> On Tue, Jan 17, 2017 at 1:38 AM, Cornelis Bockemühl < >> cornelis.bockemu...@gmail.com> wrote: >> >>> Dear Andy, >>> >>> Thanks for this hint: Indeed I was not fully aware of the way how you >>> can easily add new calculated columns with these two filters! What they do >>> is some kind of "vector math", resulting in a new vector that is appended >>> to the input data set. >>> >>> However my question went in the direction of directly editing single >>> values, or groups of values. >>> >>> Example: Assume that we have a data array "Density" in some data set, >>> then I want to be able to directly change the "density" value for just a >>> few cells, or even better: for a selected set of data rows. >>> >>> Because: If such a thing does not exist yet I would consider trying to >>> write it myself - but I do not insist on reinventing any wheel! And I am >>> sometimes astonished how many "wheels" already exist in the ParaView >>> "world"... >>> >>> Regards, >>> Cornelis >>> >>> PS: Why do I never see my own posts to the paraview mailing list? Is >>> this a bug or a feature or something I am doing wrong? >>> >>> 2017-01-17 0:57 GMT+01:00 Andy Bauer <andy.ba...@kitware.com>: >>> >>>> This can be done through either the calculator or python calculator >>>> filter. If you're in the spreadsheet view it should switch over to the >>>> calculator/python calculator output when the filter is applied. >>>> >>>> On Mon, Jan 16, 2017 at 5:14 PM, Cornelis Bockemühl < >>>> cornelis.bockemu...@gmail.com> wrote: >>>> >>>>> Has somebody already written and contributed a filter that allows some >>>>> simple "spreadsheet like" user manipulation of the data? >>>>> >>>>> I mean something that accepts some data input, then allows user >>>>> changes, and the output would be the changed data set. >>>>> >>>>> Regards, >>>>> Cornelis >>>>> >>>>> -- >>>>> Cornelis Bockemühl >>>>> Basel, Schweiz >>>>> >>>>> _______________________________________________ >>>>> Powered by www.kitware.com >>>>> >>>>> Visit other Kitware open-source projects at >>>>> http://www.kitware.com/opensource/opensource.html >>>>> >>>>> Please keep messages on-topic and check the ParaView Wiki at: >>>>> http://paraview.org/Wiki/ParaView >>>>> >>>>> Search the list archives at: http://markmail.org/search/?q=ParaView >>>>> >>>>> Follow this link to subscribe/unsubscribe: >>>>> http://public.kitware.com/mailman/listinfo/paraview >>>>> >>>>> >>>> >>> >>> >>> -- >>> Cornelis Bockemühl >>> Basel, Schweiz >>> >> >> > > > -- > Cornelis Bockemühl > Basel, Schweiz > -- Cornelis Bockemühl Basel, Schweiz
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview