I was watching a video on youtube about bokeh, where presenter showed an example with auto-downsampling million of points to current graph space in pixels. Then while zooming line graph is more and more detailed. This is great feature. Can you please point me to an example or how can this be accomplished, as trying to simply plot doesn’t seem that auto-downsamling is engaged.
Unfortunately, the initial stabs at this work are being moved out of the Bokeh repo, so that the Bokeh repo can focus on its core competencies.
A couple of things to note.
There may be a similar example floating around bokeh-demos repo, I’m not sure.
There is a new server rewrite coming into the next version of Bokeh, which will hopefully make it cleaner and easier to get set up on Bokeh server, and from there, downsampling should be pretty straightforward.
I was watching a video on youtube about bokeh, where presenter showed an example with auto-downsampling million of points to current graph space in pixels. Then while zooming line graph is more and more detailed. This is great feature. Can you please point me to an example or how can this be accomplished, as trying to simply plot doesn’t seem that auto-downsamling is engaged.
Thanks
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Sarah, Vedar I think you are referring specifically to the DataShader example? If so that work now indeed being moved into its own project, but it is not publicly available yet. We will have more to show in the next few months.
I was watching a video on youtube about bokeh, where presenter showed an example with auto-downsampling million of points to current graph space in pixels. Then while zooming line graph is more and more detailed. This is great feature. Can you please point me to an example or how can this be accomplished, as trying to simply plot doesn’t seem that auto-downsamling is engaged.
Thanks
–
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@ 45:10 - shows the downsampling being done on the server and alpha being computed in real time
would that feature work for images too? i.e the ability to zoom in and refine the resolution as opposed to tiling the image in predefined resolutions.
btw, congrats for this amazing work you are doing and I look forward to see bokeh 0.11
thank you.
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On Thu, Oct 15, 2015 at 8:16 AM, Bryan Van de Ven [email protected] wrote:
Sarah, Vedar I think you are referring specifically to the DataShader example? If so that work now indeed being moved into its own project, but it is not publicly available yet. We will have more to show in the next few months.
Unfortunately, the initial stabs at this work are being moved out of the Bokeh repo, so that the Bokeh repo can focus on its core competencies.
A couple of things to note.
There may be a similar example floating around bokeh-demos repo, I’m not sure.
There is a new server rewrite coming into the next version of Bokeh, which will hopefully make it cleaner and easier to get set up on Bokeh server, and from there, downsampling should be pretty straightforward.
Hope this helps,
Sarah Bird
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I was watching a video on youtube about bokeh, where presenter showed an example with auto-downsampling million of points to current graph space in pixels. Then while zooming line graph is more and more detailed. This is great feature. Can you please point me to an example or how can this be accomplished, as trying to simply plot doesn’t seem that auto-downsamling is engaged.
Thanks
–
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