Owls an OpenFOAM post-processing library

gregor · March 2, 2015, 08:39

Dear fellow Foamers,

I uploaded Owls a python library for rapid exploration of OpenFOAM data to https://github.com/greole/owls.git.

You can download and install it by:

Code:

git clone https://github.com/greole/owls.git
cd owls
python setup.py install --user

and look at simple some examples by

Code:

cd examples
ipython notebook

PS: Cloning takes a while since I ship a tutorial case
PPS: Make sure you have the ipython notebook available

gregor · March 9, 2015, 12:40

Let me add some more comments:

First, installing Owls can be tricky since it needs numpy, bokeh and ideally matplotlib installed. I would like Owls to be installable without any root permissions, but for that at least python-dev has to be installed already. Then all non-python dependencies are compiled during Owls installation. When running

Code:

python setup.py install --user

If you have root permission on your box you can install numpy, matplotlib and ipython (-notebook) from your distros repository. This also spares you some compile time, but you probably don't get the most recent versions.

The motivation for Owls is to make post processing of OpenFOAM as convenient as possible and move post processing to the ipython notebook (http://ipython.org/notebook.html), which is a great tool in my opinion. The goal is to import OpenFOAM data like sets, fields or lagrangian data into a suitable data structure and to build post processing scripts on top of that. Owls is build on top of pandas (http://pandas.pydata.org/) so many pandas functions also working with Owls with some additional convenience methods.

That leaves me with wishing you fun and don't hesitate to ask if you any questions or ideas. Also tell me if something doesn't work as expected so that it can be fixed.

ssss · March 9, 2015, 13:29

Thank you for this awesome tool, will have a look at it during this week, it will help me a lot with my postproccessing needs, it will let me get rid of paraview.

Thank you

gregor · March 9, 2015, 13:35

Well it rather complements paraview then replace it. The scope is to generate line and scatter plots from foam data in a simple way. Probably you could visualise slices like in paraview, but it would be slow and hacky.

wyldckat · March 13, 2015, 16:49

Greetings to all!

@Gregor: Many thanks for sharing!
By the way, another forum member started a new thread with a few questions about your library: http://www.cfd-online.com/Forums/ope...-notebook.html - if possible, it would be nice for that thread to be dedicated to support and this current thread be dedicated to announcements

In addition, any chance you can add a wiki page at openfoamwiki.net, so it would be referenced here: http://openfoamwiki.net/index.php/Main_ContribOther
For example, create as a new wiki page in this link: http://openfoamwiki.net/index.php/Contrib/Owls

Best regards,
Bruno

March 2, 2015, 08:39	Owls an OpenFOAM post-processing library	#1
gregor Member Gregor Olenik Join Date: Jun 2009 Location: http://greole.github.io/ Posts: 89 Rep Power: 17	Dear fellow Foamers, I uploaded Owls a python library for rapid exploration of OpenFOAM data to https://github.com/greole/owls.git. You can download and install it by: Code: git clone https://github.com/greole/owls.git cd owls python setup.py install --user and look at simple some examples by Code: cd examples ipython notebook PS: Cloning takes a while since I ship a tutorial case PPS: Make sure you have the ipython notebook available francois, philippose, wyldckat and 8 others like this.

March 9, 2015, 12:40		#2
gregor Member Gregor Olenik Join Date: Jun 2009 Location: http://greole.github.io/ Posts: 89 Rep Power: 17	Let me add some more comments: First, installing Owls can be tricky since it needs numpy, bokeh and ideally matplotlib installed. I would like Owls to be installable without any root permissions, but for that at least python-dev has to be installed already. Then all non-python dependencies are compiled during Owls installation. When running Code: python setup.py install --user If you have root permission on your box you can install numpy, matplotlib and ipython (-notebook) from your distros repository. This also spares you some compile time, but you probably don't get the most recent versions. The motivation for Owls is to make post processing of OpenFOAM as convenient as possible and move post processing to the ipython notebook (http://ipython.org/notebook.html), which is a great tool in my opinion. The goal is to import OpenFOAM data like sets, fields or lagrangian data into a suitable data structure and to build post processing scripts on top of that. Owls is build on top of pandas (http://pandas.pydata.org/) so many pandas functions also working with Owls with some additional convenience methods. That leaves me with wishing you fun and don't hesitate to ask if you any questions or ideas. Also tell me if something doesn't work as expected so that it can be fixed. francois and elvis like this.

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March 9, 2015, 13:29		#3
ssss Senior Member anonymous Join Date: Aug 2014 Posts: 205 Rep Power: 13	Thank you for this awesome tool, will have a look at it during this week, it will help me a lot with my postproccessing needs, it will let me get rid of paraview. Thank you

March 9, 2015, 13:35		#4
gregor Member Gregor Olenik Join Date: Jun 2009 Location: http://greole.github.io/ Posts: 89 Rep Power: 17	Well it rather complements paraview then replace it. The scope is to generate line and scatter plots from foam data in a simple way. Probably you could visualise slices like in paraview, but it would be slow and hacky.

March 13, 2015, 16:49		#5
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,982 Blog Entries: 45 Rep Power: 128	Greetings to all! @Gregor: Many thanks for sharing! By the way, another forum member started a new thread with a few questions about your library: http://www.cfd-online.com/Forums/ope...-notebook.html - if possible, it would be nice for that thread to be dedicated to support and this current thread be dedicated to announcements In addition, any chance you can add a wiki page at openfoamwiki.net, so it would be referenced here: http://openfoamwiki.net/index.php/Main_ContribOther For example, create as a new wiki page in this link: http://openfoamwiki.net/index.php/Contrib/Owls Best regards, Bruno