observablehq / observablehq/plot

The ridgeline plot example doesn’t handle overlapping correctly

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@Fil is already working on this.

Since Apr 12, 2026.

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Description

Since 0.6.7, facets are no longer drawn as separate layers, so the lines are drawn atop all the areas.

0.6.7:
chart (11)

0.6.15:
chart (12)

We could use a custom mark to fix this that draws the line within the area mark, so that overlapping facets behave as desired. But that might be a fair amount of work?

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