Unable to save video/screenshot

I have a project where I would love to generate quick visualizations of ~100 tomographic scans for a collaborator. Loading and displaying the scans works perfectly with itkwidgets as you can see in the first screenshot.

I figured this should easily work with this example. On first try I got an error that “the stream is malformed” which led me to submit an issue here. Now, if I try again (with a restarted kernel), I simply get no output and no error) with the cells shown below wich are based on the example above.

I would be very happy to get pointers on how I can (automatically) save quick 3D previews of my scans…

[habi]

Yes, you can automate the output to file – please take a look at this update for the example: #346 https://github.com/InsightSoftwareConsortium/itkwidgets/pull/346Great, thanks! I’ll look into it early next week, now it’s already weekend (away from my data).

[habi]

I have another datapoint on this: I figured out that using

downsample=3
for whichone, sample in notebook.tqdm(Data.iterrows(),
                                      total=len(Data),
                                      desc='Saving 3D views'):
    image=Reconstructions[whichone][::downsample,::downsample,::downsample].compute()
    viewer= view(numpy.flipud(image),
             ui_collapsed=True,
             rotate=True,
             annotations=False)
    print(Data.Sample[whichone])
    display(viewer)
    recorder = webrtc.ImageRecorder(stream=viewer,
                                    filename=os.path.join(Root,#Data['Folder'][whichone],
                                                          '_' + Data['Sample'][whichone] + '.3D.png'),
                                    autosave=True)
    recorder
    recorder.recording = True
    recorder.recording = False

works nicely on OSX, but neither on Windows 10 nor Linux (both tested with both FireFox and Chrome) I do not get output in the expected folder (os.path.join(Root,'_' + Data['Sample'][whichone] + '.3D.png'), which is defined at the start of the notebook.