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user015 opened this issue Mar 27, 2018 · 5 comments
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best way to convert ndarray to a .net #652

user015 opened this issue Mar 27, 2018 · 5 comments

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@user015
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user015 commented Mar 27, 2018

Is there a efficient way to convert numpy.ndarray to a .net object (array/list) ? I have a 2D ndarray that is pretty massive 1500 *2000, is there a efficient way to convert to .net

Also this pythonnet package has helped me greatly, thanks for all your efforts in developing and maintaining it!
@den-run-ai
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@user015 see suggestions here: #514

@dmitriyse
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In CoreCLR 2.1 we have Span API so I think is could be many times faster approach.

@den-run-ai
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@dmitriyse that's what I was thinking too, but the suggestion i linked above was good enough for me.

@user015
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user015 commented Mar 28, 2018 •
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I tried a couple of the approaches in that link and they didn't work for me. I am guessing I have a ndarray(2D) vs a single D array is the issue, those approaches might work for a single d numpy array. I haven't tried the pure python solution at the very end, but either way I think I can get around this. Thanks!

Edit:- The python code from Robert McLeod in the above link worked great, Thanks!

@Kemsekov
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Kemsekov commented Jan 4, 2024

I've added answer alongside with Robert McLeod for c# side

#514 (comment)

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@den-run-ai @dmitriyse @user015 @Kemsekov