Philippe Rivière

> Possible in Plot? I think the example you're linking to is using Plot under the hood?

closed by https://github.com/observablehq/plot/pull/2109

Exciting! To support faceting we only need to re-apply the translate attribute (we can copy it from the old `g`). https://observablehq.com/@observablehq/filtering-several-charts-1871 I'd like to also support sharing the behavior between...

Would it be interesting to have a way for an initializer to suppress an existing channel (e.g. by returning `channels: {y1: null}`) ? In this case we could censor `y1`...

Another way of having the right tooltips without the hint would be to change the pair formatting of (a, b) to display a when format(a) === format(b). I think it's...

> we don’t want the waffle mark to do anything if the tip option isn’t being used I now disagree with this, because I want to highlight the particular waffle...

I've fixed the waffle centroids. The number of cases when you include the logic for fractional values is… insane.

For a completely different approach, we could use the spatial metaphor, and pass the path to the poi transform (#2098).

integrated in https://github.com/observablehq/plot/pull/2215

These comments point to a common difficulty in that our marks don't have an abstract representation of the "visual space" they occupy. A rect is simple (x, y, width and...