Add utility to rr.components.Color to generate colors from any string (and use it in the air traffic data example)
#8458
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…ng (and use it in the air traffic data example)
abey79
added
enhancement
| color = rr.components.Color.from_string(entity_path) | ||
| rr.log( | ||
| entity_path, | ||
| [rr.archetypes.Points3D.indicator(), rr.archetypes.GeoPoints.indicator(), color], |
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Good lord I didnt realize how much that code needs tagged components 🙈
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Good example of a component which is intended to be shared across two archetypes, btw. Hopefully we don't make that use case too contrived, aka if that Color is tagged with the Points3D archetype, it should be implicitly(?) used by the GeoPoints archetype as well.
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Ha yeah I didn't even realize that was what's happening, interesting.
Yeah we'll have to figure out how we want to handle those. I do think heuristics to implicitly pick up the same component from unrelated tags if on the same entity makes sense.
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Vaguely related is one realisation we've had when discussing the archetype vs. visualiser relationship the other day: indicator components are additive, while tags are exclusive. With the former, you could have 2 archetypes with 1 components (e.g. hypothetical ScalarSeriesLine + ScalarSeriesPoint archetypes based on a single scalar component + 2 indicators), but with the latter you are forced to make a choice.
We don't think this constraint is going to be much of problem though. More in #8368
Co-authored-by: Clement Rey <[email protected]>
What
It's some time nice to log some color information in multiple entities to make it easier to relate them visually. This PR adds a
rr.components.Color.from_str()utility that does exactly that: generate a nice color randomly picked up based on the provided string.This PR also updates the air traffic data example so the barometric traces have matching colors with the map data.