I am generating a 14 x 14 pairwise scatterplot matrix where each plot contains 10,000 points so the total number of points would be just shy of 2 million (14 x 14 x 10,000). The grid visualization renders fine using the Bokeh server but it takes a very long time and I know that many of the points overlap. Thus, I’d like to try downsampling. However, I haven’t been able to find any good examples for this (even though version 0.8 is out) and so I am hoping that somebody can provide good representative example(s).
Hi,
Thanks for your feedback. We are working hard on the documentation to include a better user guide that hopefully can help with the server side content. In the meanwhile, have you seen the following examples on the repo?
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/abstractrender.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/blaze_source.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/serversource.py
Best
Fabio
···
On Friday, May 1, 2015 at 5:13:53 PM UTC+2, [email protected] wrote:
I am generating a 14 x 14 pairwise scatterplot matrix where each plot contains 10,000 points so the total number of points would be just shy of 2 million (14 x 14 x 10,000). The grid visualization renders fine using the Bokeh server but it takes a very long time and I know that many of the points overlap. Thus, I’d like to try downsampling. However, I haven’t been able to find any good examples for this (even though version 0.8 is out) and so I am hoping that somebody can provide good representative example(s).
Thanks for the links, Fabio. Can you tell me if I need to do anything special (I’m trying the abstractrender.py example) and have never used blaze before (let alone along with bokehserver)?
···
On Tuesday, May 5, 2015 at 8:25:11 AM UTC4, Fabio Pliger wrote:
Hi,
Thanks for your feedback. We are working hard on the documentation to include a better user guide that hopefully can help with the server side content. In the meanwhile, have you seen the following examples on the repo?
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/abstractrender.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/blaze_source.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/serversource.py
Best
Fabio
On Friday, May 1, 2015 at 5:13:53 PM UTC+2, [email protected] wrote:
I am generating a 14 x 14 pairwise scatterplot matrix where each plot contains 10,000 points so the total number of points would be just shy of 2 million (14 x 14 x 10,000). The grid visualization renders fine using the Bokeh server but it takes a very long time and I know that many of the points overlap. Thus, I’d like to try downsampling. However, I haven’t been able to find any good examples for this (even though version 0.8 is out) and so I am hoping that somebody can provide good representative example(s).
Aha, based on this previous post:
https://groups.google.com/a/continuum.io/forum/#!msg/bokeh/vM8erulLZ7o/EXnZw87gi6YJ
I needed to do three things:

install multiuserblazeserver (conda install c bokeh :: Anaconda.org multiuserblazeserver)

install abstract_rendering (pip install abstract_rendering)

update blaze (conda update blaze)
After this, then the abstractrender.py example worked (after firing up the bokehserver from the command line).
···
On Tuesday, May 5, 2015 at 9:55:15 AM UTC4, [email protected] wrote:
Thanks for the links, Fabio. Can you tell me if I need to do anything special (I’m trying the abstractrender.py example) and have never used blaze before (let alone along with bokehserver)?
On Tuesday, May 5, 2015 at 8:25:11 AM UTC4, Fabio Pliger wrote:
Hi,
Thanks for your feedback. We are working hard on the documentation to include a better user guide that hopefully can help with the server side content. In the meanwhile, have you seen the following examples on the repo?
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/abstractrender.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/blaze_source.py
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/serversource.py
Best
Fabio
On Friday, May 1, 2015 at 5:13:53 PM UTC+2, [email protected] wrote:
I am generating a 14 x 14 pairwise scatterplot matrix where each plot contains 10,000 points so the total number of points would be just shy of 2 million (14 x 14 x 10,000). The grid visualization renders fine using the Bokeh server but it takes a very long time and I know that many of the points overlap. Thus, I’d like to try downsampling. However, I haven’t been able to find any good examples for this (even though version 0.8 is out) and so I am hoping that somebody can provide good representative example(s).