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Scatterplot change colour transparency for selected/unselected points #367

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whaowhao opened this issue Apr 15, 2022 · 2 comments · Fixed by #366
Closed

Scatterplot change colour transparency for selected/unselected points #367

whaowhao opened this issue Apr 15, 2022 · 2 comments · Fixed by #366
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feature request New feature or request inactive-30d question Further information is requested

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@whaowhao
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While exploring data in a scatterplot, it'd be useful to mark already explored points to a different colour to avoid duplicated exploration. Is there a way to do that?

Furthermore, it'd be useful to make unselected points transparent with a low alpha instead of erasing them entirely while selecting a cluster of points (current default behaviour). Is that possible with cuxfilter?
@whaowhao whaowhao added ? - Needs Triage Need team to review and classify question Further information is requested labels Apr 15, 2022
@AjayThorve
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@whaowhao that seems like a reasonable feature request, and should certainly be possible. Have added it to the to-do list!! Thanks!

@exactlyallan
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@whaowhao great suggestions!

@AjayThorve AjayThorve added feature request New feature or request and removed ? - Needs Triage Need team to review and classify labels Apr 15, 2022
@rapidsai rapidsai deleted a comment from github-actions bot May 23, 2022
@AjayThorve AjayThorve mentioned this issue Jun 1, 2022
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@rapids-bot rapids-bot bot closed this as completed in #366 Jun 1, 2022
rapids-bot bot pushed a commit that referenced this issue Jun 1, 2022
@AjayThorve
fix dask_cudf issues and documentation (#366)
4be4708 
This PR is a follow up to #359:
- fixes a couple of minor issues related to lasso_select in a dask.distributed environment
- Adds example notebooks demonstrating dask_cudf support
- Update documentation and Readme to reflect dask_cudf usage

New Features added:
- added `unseleced_alpha` parameter to all datashader charts, which when enabled displays unselected data as the same color palette but transparent (default=0.2)
- fixes #367.
![Recording 2022-06-01 at 14 29 13](https://user-images.githubusercontent.com/20476096/171505032-0fea1fd1-0526-4b43-866a-e08185bb28eb.gif)

- added binary data transfer support for choropleth charts (using deckgl + bokeh.models.ColumnDataSource + panel's html+Deck widget), instead of the current method using pydeck, where huge json strings were sent to the client on every interaction, resulting in a visual lag whenever a fairly large amount of data points were rendered.

Authors:
  - Ajay Thorve (https://github.com/AjayThorve)

Approvers:
  - Allan (https://github.com/exactlyallan)

URL: #366
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fix dask_cudf issues and documentation AjayThorve/cuxfilter
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@exactlyallan @AjayThorve @whaowhao