Re: regarding new openpiv version

[OpenPIV]

the short answer is: set pattern_b to None

        pattern_b : str

            a shell glob patter to match the second

            frames. if None, then the list is sequential, 001.tif, 002.tif

On Thu, Jun 9, 2022 at 7:41 PM Alex Liberzon <alex.l...@gmail.com> wrote:

Please ask on the Google group openpiv-users - some might answer earlier. I am out of the office for a couple of days 

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From: Rory Cerbus <rory....@riken.jp>
Sent: Thursday, June 9, 2022 7:14:21 PM
To: openp...@gmail.com <openp...@gmail.com>
Subject: regarding new openpiv version

 

Dear Sir or Madam,

I had been using an older version of OpenPIV until recently and then switched computers. I installed the recent version and I see that “openpiv.process.WiDIM” no longer exists. I was using this for my window deformation multi-pass (and it worked great! thanks!). I was starting to work through the tutorial for the new version with “openpiv.pyprocess.windef”, but I ran into a simple problem. In the settings, where one defines the image format, the example has “a” and “b”. My images are a simple series of images: “image_00001.jpg, image_00002.jpg”, etc. What should I change the settings to in this case?

Best regards,
Rory CERBUS

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Open Source Particle Image Velocimetry http://www.openpiv.net

[Alex Liberzon]

Hi, 

thanks for your request, I've decided to adopt the options available in openpiv Tk GUI to our openpiv.windef :

please update to version 0.24.0

it allows to use the following sequence types: (1+2),(2+3), (1+3),(2+4), (1+2),(3+4) 

https://github.com/OpenPIV/openpiv-python/blob/master/openpiv/test/test_tools.ipynb

[Alex Liberzon]

https://openpiv.readthedocs.io/en/latest/src/windef.html

[Ivan Nepomnyashchikh]

Thank you for that. That feature can be helpful.
You said you adopted it from GUI openpiv.
Since I don't like GUI based software, I have a general question about python openpiv vs GUI openpiv. Do you prioritize GUI? If positive, does it mean that you plan phasing out non GUI based version of openpiv? Can I relax and keep using python openpiv?

[Alex Liberzon]

You can relax - the openpiv-Python library is the main package. GUI might have its own advantage, but it is built on top of the library and not vice versa. 

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From: openpi...@googlegroups.com <openpi...@googlegroups.com> on behalf of Ivan Nepomnyashchikh <nepo...@oregonstate.edu>
Sent: Saturday, July 30, 2022 4:13:55 AM
To: openpiv-users <openpi...@googlegroups.com>
Subject: [openpiv-users] Re: regarding new openpiv version

 

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