USA-states incorrectly drawn as foreign regions in high resolution choropleth

[Thlayli]

I’ve been working on a choropleth (through plotly.py originally) and things had been going fine at 110 resolution, but I decided to switch to 50 and things got weird. The problem I’m seeing is that I’m providing a list of ‘USA-states’ and it’s deciding to map some of them to similarly named world states, e.g. WA (Washington) is mapped on Western Australia and PA (Pennsylvania) is mapped on Pará, Brazil. This problem does not occur at all at the lower 110 resolution where WA is correctly mapped to the USA state as requested.

I’d actually like to take advantage of this hidden feature for other projects but I can only get it to happen through this glitch, not through choice. I’ve tried various other formats like "WA, AUS" or "AUS-WA" and both "USA-states" and "countries" formats. The only thing that causes Western Australia to be drawn is putting “WA” and “USA-states” and resolution=50.

https://jsfiddle.net/Thlayli/3jza9sov/
or
https://plot.ly/~thlayli/22/number-of-artists-by-country-or-region/#/ 1

[etpinard]

Thanks for reporting.

[etpinard]

Ha, that's a shame

var gd = document.querySelector('.js-plotly-plot')
gd._fullLayout.geo._subplot.topojson.objects.subunits.geometries.map(g => g.id)

has duplicate ids in it:

Looks like we'll have to patch: https://github.com/etpinard/sane-topojson

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That said, I wonder if some users out there are using locationmode: 'USA-states to show (incorrectly) Brazil, Australia and Canada sub-divisions?

[Thlayli]

I'd do it if it was predictable. :D

[etpinard]

I'd do it if it was predictable.

Do what exactly? You mean you would use locationmode: 'USA-states' to draw e.g. Brazil sub-division choropleths? That's sounds odd. We should probably add a new locationmode value (e.g. 'subdivisons') for choropleths of the likes.

[Thlayli]

Yeah, I meant I would plot non-USA regions on a world map if I could specify both country and region code.