java/beakerx support

[scottdraves]

this works: https://github.com/twosigma/beakerx/blob/master/doc/groovy/3D.ipynb

[maartenbreddels]

Great, I also see you had to get some parts of ipywebrtc in.

[maartenbreddels]

This seems to work nicely with Clojure:

%classpath config resolver jitpack.io https://jitpack.io
%classpath add mvn com.github.twosigma:ipyvolume:lmitusinski~beakerx-widget-SNAPSHOT
(import ipyvolume.PyLab)

(defn ball 
    [size radius]
    (let [data           (make-array Float/TYPE size size size)
          square         #(* % %)
          center         #(- % (/ size 2))
          sum            (partial reduce +)
          sum-of-squares #(sum (map square %))]
        (doseq [i (range size)
                j (range size)
                k (range size)
                :let [[x y z] (map center [i j k])] 
                :when (> (square radius) 
                         (sum-of-squares [x y z]))]
             (aset data i j k (float 1)))
        data))
(PyLab/volShow (ball 32 12))

[scottdraves]

as soon as we get pythreejs working, will look into the test failure:

_____________________________ test_threejs_version _____________________________
    def test_threejs_version():
        # a quick check, as a reminder to change if threejs version is updated
        configpath = os.path.join(os.path.abspath(ipyvolume.__path__[0]), "..", "js", "package.json")
        with open(configpath) as f:
            config = json.load(f)
        major, minor = ipyvolume._version.__version_threejs__.split(".")
        major_js, minor_js, patch_js = config['dependencies']['three'][1:].split(".")
        version_msg = "version in python and js side for three js conflect: %s vs %s" % (
            ipyvolume._version.__version_threejs__, config['dependencies']['three'])
>       assert (major == major_js) and (minor == minor_js), version_msg
E       AssertionError: version in python and js side for three js conflect: 0.85 vs ^0.91.0
E       assert ('0' == '0'
E           0 and '85' == '91'
E         - 85
E         + 91)
ipyvolume/test_all.py:366: AssertionError

[maartenbreddels]

I just fixed that, if you rebase against master it should work.
Btw, how is distribution and installation managed, did you think about it? Apart from a conda package, what is the way this should be distributed?

[coveralls]

Coverage remained the same at 68.72% when pulling bedec29 on twosigma:master into ef7da2a on maartenbreddels:master.

[scottdraves]

thanks, it's green now.

[scottdraves]

for distribution, jitpack does fine for the java part afaik.

[mprogram]

I've got compiled ipyvolume-java-1.0-SNAPSHOT.jar in the ipyvolume-java folder. Any suggestion how does one need to integrate it further into the Debian system I'm running to look at it? I've passed the opening example to myBinder, unfortunately, with no visuals.

[maartenbreddels]

Did you install ipyvolume as well? Can you give me a link to a mybinder you are using for this?

[mprogram]

Yes, (locally) I did. I'm off my testing environment at the moment due to real life demands, however, I'm more than happy to provide a universal link to query virtually any notebook hosted on GitHub straight into myBinder environment (watching the 'Build logs' by clicking the 'show' link at the top would be a good thing to do as it hangs quite often):
https://mybinder.org/v2/gh/twosigma/beakerx/master?filepath=doc/groovy/3D.ipynb

EDIT: I've just checked the myBinder image (finally!), and remembered that "no visuals" corresponds to not knowing how one needs to seduce the Groovy API into installing the ipyvolume module (spotted: 'For this to work, the widget JS needs to be installed:' conda install -c conda-forge ipyvolume). I would be nice to have this missing piece of code be present in the notebook itself.