Thanks, Dane.
I am trying to plot some level curves with the pyqtgraph
library-->isocurve, but i get the same error.
Does your solution work also with numpy 11.1.1?
Which file do I have do edit, exactly? I can't find any "functions.py" on
my PC.
Thank you.
Il giorno domenica 6 dicembre 2015 00:08:17 UTC+1, Dane Austin ha scritto:
>
> I got it working with numpy 1.10.1 with the following small changes:
>
> around line 2030 of functions py:
> added astype(np.uint16) to give
>
> index += (fields[i,j,k] * 2**vertIndex).astype(np.ubyte)
>
>
> around line 2100:
> added astype(np.uint16) to give
>
> verts[...,:3] += cells[:,np.newaxis,np.newaxis,:].astype(np.uint16) ## we
> now have indexes into cutEdges
>
>
> On Wednesday, November 25, 2015 at 6:56:03 PM UTC, Ryan Martin wrote:
>>
>> Hi all,
>> I am not sure if this is a problem with my system or just that I
>> shouldn't use numpy 1.10.1, but figured I'd report my findings. I was just
>> testing different examples accessed with the python -m pyqtgraph.examples
>> command.
>> The isosurface example under 3D Graphics fails to run on my system when
>> numpy 1.10.1 is installed with the following error:
>>
>> Traceback (most recent call last):
>> File "<stdin>", line 49, in <module>
>> File
>> "C:\Users\rmartin\Anaconda3\lib\site-packages\pyqtgraph\functions.py", line
>> 2030, in isosurface
>> index += fields[i,j,k] * 2**vertIndex
>> TypeError: Cannot cast ufunc add output from dtype('int32') to
>> dtype('uint8') with casting rule 'same_kind'
>>
>> If I then revert the numpy package to 1.9.3 using:
>>
>> conda install numpy=1.9 -f
>>
>> and rerun the same example of 3D Graphics > Isosurface, no error is
>> generated, and the example displays as intended.
>>
>> All other 3D Graphics examples seem to run without issue for both
>> versions of numpy. The following other examples run with numpy 1.9.3 but
>> fail with similar cast errors under numpy 1.10.1:
>>
>> GraphicsItems > IsocurveItem, ImageItem-Video, ImageItem-Draw
>>
>> I am using a downloaded .zip from https://github.com/pyqtgraph/pyqtgraph
>> version 0.9.10, installed to my anaconda distribution with python
>> setup.py install. Let me know if there is other information to provide.
>>
>> Should numpy 1.10.1 work for all examples? is it recommended to not use
>> the updated numpy? Maybe there is something else wrong with my system..?
>>
>> Thanks,
>> Ryan
>>
>>
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