[meta] Heatmap gaps in comparison to kibana heatmap

[stratoula]

Gap comparison between the Kibana legacy heatmap and the current ECH heatmap implementation

Planned for 8.1 (experimental):

• [Heatmap] Add axes titles #1221
• [Heatmap] Rotate or hide overlapping labels on X-axis #1168 [Lens][Heatmap] Add ability to rotate X axis label kibana#202143

Planned for 8.x (GA):

• [Heatmap] Highlight cells in range from legend #1486
• [Heatmap] Small multiples #1484
• [Heatmap] style empty cells #1485

Done:

• Heatmaps scaling cells wider instead of showing data kibana#14291
• I can see that the legend can also have color picker. Is it applicable for heatmap too?
• Customize the color of the cell labels Update: not supported for now, we will wait for users' feedback
• Rotate cell labels Not needed, the font size could be responsive. We had this feature for readability cc @markov00

[markov00]

I can see that the legend can also have color picker. Is it applicable for heatmap too?

You can probably add a color picker as done here: https://elastic.github.io/elastic-charts/?path=/story/legend--color-picker and use the callback color to update the chart configuration

[markov00]

@stratoula could you please check with Alona and in the current Kibana repo the reason (if any) for the existence of the Rotate cell labels feature? I'm wondering if that was implemented as a workaround to improve the readability of values with tall but thin cells. I'd like to understand if we can do something better then that in this case: like reducing the font size, or something similar

[stratoula]

@stratoula could you please check with Alona and in the current Kibana repo the reason (if any) for the existence of the Rotate cell labels feature? I'm wondering if that was implemented as a workaround to improve the readability of values with tall but thin cells. I'd like to understand if we can do something better then that in this case: like reducing the font size, or something similar

Sure Marco, I will update the issue when I have feedback on this.