pythreejs k3d ... and others

[Henri Girard]

Hi,
Jupyter nbextension works fine :
jupyter nbextension enable --py --sys-prefix widgetsnbextension
Apparently that's the only one :
After installing pythreejs with pip successfully this command failed :
jupyter nbextension enable --py --sys-prefix pythreejs

    return __import__(parts[0])
ImportError: No module named pythreejs

I tried to do it with others : k3d

Only flatsurf succeeded

Any help ?

Regards
Henri

[Jason Grout]

Did you do the following too?

jupyter nbextension install --py --sys-prefix pythreejs

Thanks,

Jason

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[Henri Girard]

[Henri Girard]

Le jeudi 4 mai 2017 10:47:30 UTC+2, Henri Girard a écrit :

Yes ... Sorry for double mail

 

Installing /home/pi/sage/pythreejs/pythreejs/static -> jupyter-threejs
Symlinking: /home/pi/sage/local/share/jupyter/nbextensions/jupyter-threejs -> /home/pi/sage/pythreejs/pythreejs/static
- Validating: OK

    To initialize this nbextension in the browser every time the notebook (or other app) loads:
    
          jupyter nbextension enable pythreejs --py --sys-prefix
    
Enabling notebook extension jupyter-threejs/extension...
      - Validating: OK

ball = Mesh(geometry=SphereGeometry(radius=1), 
                                    material=LambertMaterial(color='red'),
                                    position=[2, 1, 0])

scene = Scene(children=[ball, AmbientLight(color='#777777')])

c = PerspectiveCamera(position=[0, 5, 5], up=[0, 0, 1],
                      children=[DirectionalLight(color='white', 
                                                 position=[3, 5, 1], 
                                                 intensity=0.5)])
renderer = Renderer(camera=c, 
                    scene=scene, 
                    controls=[OrbitControls(controlling=c)])
display(renderer)
Could not create model:
                        
                    
                
                

Model name	RendererModel
Model module	jupyter-threejs
Model module version	0.3.0-alpha.0
Script error for "jupyter-threejs" http://requirejs.org/docs/errors.html#scripterror

 

 

[andrew.m...@gmail.com]

I am having the same problem.

Simple sphere and text

In [2]:

ball = Mesh(geometry=SphereGeometry(radius=1), 

                                    material=LambertMaterial(color='red'),

                                    position=[2, 1, 0])

​

scene = Scene(children=[ball, AmbientLight(color='#777777')])

​

c = PerspectiveCamera(position=[0, 5, 5], up=[0, 0, 1],

                      children=[DirectionalLight(color='white', 

                                                 position=[3, 5, 1], 

                                                 intensity=0.5)])

renderer = Renderer(camera=c, 

                    scene=scene, 

                    controls=[OrbitControls(controlling=c)])

display(renderer)

×

Could not create model:

Model name	RendererModel
Model module	jupyter-threejs

Model module version

*

Script error for "jupyter-threejs" http://requirejs.org/docs/errors.html#scripterror

[Jason Grout]

I'm trying to replicate this. The below works for me. Can you provide instructions for reproducing your error?

conda create --prefix threejstest notebook python ipywidgets pythreejs

source activate ./threejstest

jupyter nbextension enable --py --sys-prefix widgetsnbextension

jupyter nbextension enable --py --sys-prefix pythreejs

source activate ./threejstest

kernelname=`echo $CONDA_DEFAULT_ENV | sed s:/:_:g`

ipython kernel install --name $kernelname --display-name conda-$kernelname --sys-prefix

jupyter notebook

And then I opened the pythreejs example file with the environment kernel and the first example executed just fine.

Looking at the errors you show, it seems that you have widgets installed. It also seems that you have pythreejs installed. I would check to see if the pythreejs extension is enabled:

jupyter nbextension enable --py --sys-prefix pythreejs

And I would also check to see if there are any errors in the javascript console.

Thanks,

Jason

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[andrew.m...@gmail.com]

Hi Jason,

Thank you for your response.

I should have mentioned previously that I followed the instruction above to run the following...

jupyter nbextension enable pythreejs --py --sys-prefix

OK...

(C:\ProgramData\Anaconda3) C:\Users\andrew.mole\Source\Repos\JupyterTest01>conda create --prefix threejstest notebook python ipywidgets pythreejs
Fetching package metadata ...............

PackageNotFoundError: Package missing in current win-64 channels:
  - pythreejs

Close matches found; did you mean one of these?

    pythreejs: r-threejs


... so I have now added the conda-forge channel to my config and the installation goes OK... continuing with your instructions and converting to Windows...

conda create --prefix threejstest notebook python ipywidgets pythreejs
source activate ./threejstest
jupyter nbextension enable --py --sys-prefix widgetsnbextension
jupyter nbextension enable --py --sys-prefix pythreejs
activate ./threejstest
kernelname=echo %CONDA_DEFAULT_ENV%   (should be threejstest)
ipython kernel install --name threejstest --display-name conda-threejstest --sys-prefix
jupyter notebook

Yes, it seems to work now! Thank you. For some reason conda doesn't list the new environment (threejstest), but it seems to activate OK. Do you think that the key missing steps were the two "jupyter nbextension enable..."? Do you think adding the conda-forge channel was also important? 

Thanks,

Andrew

[andrew.m...@gmail.com]

Hi Jason,

Thanks for creating this and for all your help. I am making major leaps forward, and can now generate line and face geometry using the PlainGeometry class. I am currently trying to use your 'Indexed Geometries' example and also your 'Buffered' example, but both of them fail. I have managed to get them to display, but I have to make the following changes:

1. It doesn't like the numpy arrays for vertices and faces, so I changed them to lists of lists.
2. It doesn't like the colors provided as a numpy array of tuples, then when I changed this into a list of tuples it still complained, then I changed it into a list of lists, but that still didn't work, so I changed it into a list of  explicit colors, such as ['red', 'red', ...], at which point it would run, but it did not show any colors. It now shows a white cube against a black background.
3. It doesn't like the PlainBufferedGeometry, complaining,   NameError: name 'PlainBufferGeometry' is not defined

Do you have any idea why this is?

Also, I would really appreciate it if you could tell me (or show me) how to add components to a scene (rather than place them all in there at one time). I tried 'scene.add', but it didn't like that.

Thanks,

Andrew

(.\threejstest) C:\Anaconda3>conda list

# packages in environment at C:\Anaconda3\envs\threejstest:

#

bleach                    1.5.0                    py36_0    conda-forge

certifi                   2017.4.17                py36_0    conda-forge

colorama                  0.3.9                    py36_0    conda-forge

decorator                 4.0.11                   py36_0    conda-forge

entrypoints               0.2.3                    py36_1    conda-forge

html5lib                  0.9999999                py36_0    conda-forge

ipykernel                 4.6.1                    py36_0    conda-forge

ipython                   6.1.0                    py36_0    conda-forge

ipython_genutils          0.2.0                    py36_0    conda-forge

ipywidgets                6.0.0                    py36_0    conda-forge

jedi                      0.10.0                   py36_0    conda-forge

jinja2                    2.9.5                    py36_0    conda-forge

jsonschema                2.5.1                    py36_0    conda-forge

jupyter_client            5.1.0                    py36_0    conda-forge

jupyter_core              4.3.0                    py36_0    conda-forge

markupsafe                1.0                      py36_0    conda-forge

mistune                   0.7.4                    py36_0    conda-forge

nbconvert                 5.2.1                    py36_1    conda-forge

nbformat                  4.3.0                    py36_0    conda-forge

notebook                  5.0.0                    py36_0    conda-forge

pandoc                    1.19.2                        0    conda-forge

pandocfilters             1.4.1                    py36_0    conda-forge

pickleshare               0.7.3                    py36_0    conda-forge

pip                       9.0.1                    py36_0    conda-forge

prompt_toolkit            1.0.14                   py36_0    conda-forge

pygments                  2.2.0                    py36_0    conda-forge

python                    3.6.1                         3    conda-forge

python-dateutil           2.6.0                    py36_0    conda-forge

pythreejs                 0.3.0                    py36_0    conda-forge

pyzmq                     16.0.2                   py36_2    conda-forge

setuptools                33.1.1                   py36_0    conda-forge

simplegeneric             0.8.1                    py36_0    conda-forge

six                       1.10.0                   py36_1    conda-forge

testpath                  0.3                      py36_0    conda-forge

tornado                   4.5.1                    py36_0    conda-forge

traitlets                 4.3.2                    py36_0    conda-forge

vs2015_runtime            14.0.25420                    0    conda-forge

wcwidth                   0.1.7                    py36_0    conda-forge

webencodings              0.5                      py36_0    conda-forge

wheel                     0.29.0                   py36_0    conda-forge

widgetsnbextension        2.0.0                    py36_0    conda-forge

wincertstore              0.2                      py36_0    conda-forge

[Jason Grout]

Your issues seem to stem from using the latest stable release of pythreejs, rather than the latest alpha - the features you talk about are only available in the latest alpha. I will be updating the latest alpha soon as well.

You can add components to a scene by creating a new children array and setting the scene children to the new array.

Thanks,

Jason

[andrew.m...@gmail.com]

Ah... I thought it might be something like that. Thanks for the quick reply.

Andrew