Splom open items
See original GitHub issueFollow-up from https://github.com/plotly/plotly.js/issues/2372, https://github.com/plotly/plotly.js/pull/2505 and https://github.com/plotly/plotly.js/pull/2527
Things that were left out
- Splom traces placed on overlaid axes are broken, see https://github.com/plotly/plotly.js/pull/2505#discussion_r181237788
- Multi-selection across subplot is disallowed. To do so, we would need to share
selectedpoints
info across multiple splom-generated subplots, see https://github.com/plotly/plotly.js/pull/2505#issuecomment-380855752 - Relayout’ing grid style on
hasOnlyLargeSploms: true
withscattergl
trace(s) fails to redraw scattergl trace(s), see https://github.com/plotly/plotly.js/issues/2562 FIXED in https://github.com/plotly/plotly.js/pull/3067
Things we could do, but would require some thought
- Add sub-trace on the diagonal (e.g. with
diagonal.mode: 'scattergl' || 'histogram' || 'box' || 'violin'
, see https://github.com/plotly/plotly.js/pull/2505#discussion_r177823962 - Add attribute in
dimensions
that could default the splom generated axes’ style (e.g.dimensions[i].showgrid: false
would remove grid lines from all axes corresponding todimensions[i]
). Edit: PR https://github.com/plotly/plotly.js/pull/2899 addeddimensions[i].axis.type
, it would be easy to add more attribute under that container. - Make one single cartesian
<g .draglayer>
covering the whole plot area instead of multiple (12 I think) per subplot. This would speed up initial rendering (especially for splom, but also for all graphs with many subplots), make cross-subplot selections a little easier to manage, see https://github.com/plotly/plotly.js/pull/2505#discussion_r181237581 - optimize
regl-line2d
for grid data - implement matching axes https://github.com/plotly/plotly.js/issues/1549
- Remove remaining O(n^2) SVG items. In addition to
g.draglayer
mentioned above, there are two categories I can see:- Subplot backgrounds
rect.bg
- These could be omitted entirely whenplot_bgcolor
matchespaper_bgcolor
(and both are fully opaque - which is true by default), otherwise perhaps we could move them into the WebGL canvas though @etpinard points out this may impact pan/zoom performance. UPDATE: optimized when plot and paper bgcolor match in https://github.com/plotly/plotly.js/pull/3057, possible future improvements in https://github.com/plotly/plotly.js/pull/3057#discussion_r222030211 - Subplot groups
.subplot.x<N>y<M>
- normally only the ones with tick labels and titles have any visible content in them, but currently they all have some empty groups, an associatedclipPath#clip<UID>x<N>y<M>plot
, and a few<path d="M0,0">
elements, we should be able to avoid even creating the unused ones.
- Subplot backgrounds
Related issues that would benefit splom performance:
- <strike>faster axis autorange relayout:</strike> https://github.com/plotly/plotly.js/issues/2546
- <strike>per-axis ‘axrange’ relayout</strike>: https://github.com/plotly/plotly.js/issues/2547
- <strike>stash pts selections for pan</strike>: https://github.com/plotly/plotly.js/issues/2548
- speed up cartesian axis defaults: https://github.com/plotly/plotly.js/issues/2549
- replacing getBoundingClientRect calls in
Axes.doTicks
https://github.com/plotly/plotly.js/issues/1988 - done in: https://github.com/plotly/plotly.js/pull/4165
Issue Analytics
- State:
- Created 5 years ago
- Comments:5 (2 by maintainers)
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Hello , any updates for diagonal sub trace ? Would love to have this feature .
Hi, I was wondering if there has been any progress on this issue since late 2018? Especially on the “Add sub-trace on the diagonal” functionality. Thanks