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Reposted by Mike O'Brien

Daniel Bachman @danielbachman.bsky.social · 9h

Thinking about all the local papers we’ve lost over the last 10+ years…this is a great doc.

Stripped for Parts: American Journalism on the Brink | PBS

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Mike O'Brien @obrien.page · 8h

cc Richmond, VA and Henrico, VA

And where do you think they're putting all the data centers and natural gas plants to fuel the data centers?

The Washington Post @washingtonpost.com · 12h

Research reveals industrial pollution’s historical link to urban poverty, with eastern parts of cities often more impoverished because of prevailing winds.

Column | Why this one area of cities is usually the poorest

Research reveals industrial pollution’s historical link to urban poverty, with eastern parts of cities often more impoverished because of prevailing winds.

www.washingtonpost.com

Reposted by Mike O'Brien

Stephen Turner @stephenturner.us · 18h

My colleagues and I here at UVA are looking to hire a skilled #Rstats developer. You'll be working with me on the project. Here's the posting: jobs.virginia.edu/us/en/job/R0...

Epidemiologist / Research Data Scientist; Infectious Diseases and International Health in Charlottesville, Virginia, United States of America | Information Management, Services & Technology at Univers...

Apply for Epidemiologist / Research Data Scientist; Infectious Diseases and International Health job with University of Virginia in Charlottesville, Virginia, United States of America. Information Man...

jobs.virginia.edu

9 3

Mike O'Brien @obrien.page · 18h

github.com/walkerke/map...

(Request) Catch and wrap vectors in "literal" within style helpers · Issue #148 · walkerke/mapgl

Some styles -- I know of match and step, at least, but possibly more -- can accept arrays if they are wrapped in literal [] https://docs.mapbox.com/style-spec/reference/expressions/#types-literal C...

github.com

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Mike O'Brien @obrien.page · 19h

**sometimes 😬
Sometimes [] == c() so there's some trial and error for me.

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Mike O'Brien @obrien.page · 19h

If it helps: {mapgl} builds up an #rstats list which is translated to Mapbox GL JS via {htmlwidgets}/{jsonlite}. So if you are reading the Mapbox docs, try to envision everything as a nested list in R. Every "," is a new element of the list. Every "[]" indicates the creation of a nested list.

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Mike O'Brien @obrien.page · 19h

This SO answer from 7 years ago set me in the right direction
stackoverflow.com/questions/51...

mapbox-gl js use step ramp for "text-offset"

I'm using in a mapbox gl layer in the layout-block the field text-offset. layout: { // Working 'text-field': '{point_count_abbreviated}', 'text-size': ['step', ['get', 'point_count'], 18, 10, 1...

stackoverflow.com

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Mike O'Brien @obrien.page · 19h

I appreciate the question -- it's baiting me into (very slowly) starting to wrap my head around all of this.

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Mike O'Brien @obrien.page · 19h

Answer: it's lists and "literal"s all the way down.

gist.github.com/mhpob/25627d...

Variable text label placement with mapgl

Variable text label placement with mapgl. GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

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Mike O'Brien @obrien.page · 20h

Which would be the output here but with elements 4/6/8/9 being lists with the coords (I think) walker-data.com/mapgl/refere...

Create a match expression — match_expr

This function generates a match expression that can be used to style your data.

walker-data.com

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Mike O'Brien @obrien.page · 20h

The issue does suggest that you can mess with the structure of "stops" until you get something that looks good without running it through mapgl -- then you can at least see the what you would be feeding it.

jsonlite::toJSON(list("match", "direction_of_travel", values, stops), auto_unbox = TRUE)

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Mike O'Brien @obrien.page · 20h

Hmm, nevermind. That's kind of already what you were doing.

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Mike O'Brien @obrien.page · 20h

Maybe c(list(), list()) or list(list(), list())? You want the coordinates to be an array, so the opposite of the solution offered here:

github.com/walkerke/map...

match docs: docs.mapbox.com/style-spec/r...

Caveat: I'm still learning and have no idea if this will work 🤷🏻‍♂️

`set_filter()` does not work with `"in"` operator on a vector for inputs. · Issue #16 · walkerke/mapgl

As mentioned in the discussion of #12, it seems that the "in" operator does not work as desired when used for filtering the source data against a vector of possible values. reprex: library(shiny) l...

github.com

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Mike O'Brien @obrien.page · 1d

I recognize the round trip of Mapbox -> R -> Mapbox is ridiculous here, but still fun and good to know it can be done.

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Mike O'Brien @obrien.page · 1d

The @maprva.org surveillance map, ported to #Rstats using mapgl, osmdata, sf, and dplyr.

gist.github.com/mhpob/17782b...

Not 1:1 in terms of Ultra/Mapbox GL JS -> R, but pretty close!
Original query: overpass-ultra.us#query=url%3A...

cc @mackaszechno.bsky.social @kylewalker.bsky.social

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Reposted by Mike O'Brien

Mike O'Brien @obrien.page · 1d

It's an icon that rotates according to the direction listed in OpenStreetMap.
github.com/MapRVA/maprv...

We use Ultra (overpass-ultra.us/docs/) extensively at @maprva.org as it's an amazing tool and the developer, @trailsta.sh, is a member!

maprva.org/_ultra-maps/surveillance.ultra at trunk · MapRVA/maprva.org

Website for MapRVA. Contribute to MapRVA/maprva.org development by creating an account on GitHub.

github.com

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Mike O'Brien @obrien.page · 1d

Since you've been using mapgl, you'll see that the syntax is nearly exactly the same as both are using Mapbox GL JS. @kylewalker.bsky.social has taken the meat and adapted it to be consumable by us R types.

I'm certain you can recreate this effect using mapgl or using its API to hack it together.

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Mike O'Brien @obrien.page · 1d

It's an icon that rotates according to the direction listed in OpenStreetMap.
github.com/MapRVA/maprv...

We use Ultra (overpass-ultra.us/docs/) extensively at @maprva.org as it's an amazing tool and the developer, @trailsta.sh, is a member!

maprva.org/_ultra-maps/surveillance.ultra at trunk · MapRVA/maprva.org

Website for MapRVA. Contribute to MapRVA/maprva.org development by creating an account on GitHub.

github.com

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Mike O'Brien @obrien.page · 1d

Not for nothing, here's the Flock network we've been able to find in Richmond, VA, gunshot spotters included (RPD have denied FOIA requests citing security concerns).

maprva.org/projects/sur...

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Mike O'Brien @obrien.page · 1d

"when the search was performed, police were conducting a “death investigation” into the death of the fetus, and police discussed whether they could charge the woman with a crime with the District Attorney’s office on the same day that they performed the Flock search"

Joseph Cox @josephcox.bsky.social · 1d

New from 404 Media: police used a nationwide network of Flock cameras to search for a woman who self-administered an abortion, said it was for her 'safety'. But new docs show they considered charging her with a crime as part of a 'death investigation' into the fetus
www.404media.co/police-said-...

Police Said They Surveilled Woman Who Had an Abortion for Her 'Safety.' Court Records Show They Considered Charging Her With a Crime

Court records show that the narrative Flock and a Texas Sheriff's Office has told the public isn't the whole story, and that police were conducting a 'death investigation' into the abortion.

www.404media.co

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Reposted by Mike O'Brien

Spatial Analysis Lab at the University of Richmond, VA @urichmondsal.bsky.social · 5d

We celebrated GIS Day really early this year to avoid schedule conflicts. We kicked it off on Monday with our friends at MapRVA with a map-sidewalks-athon! So funny hanging out my fellow map nerds! Thanks so much for coming out to campus! @maprva.org

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Mike O'Brien @obrien.page · 1d

The overhead of indexing the data makes this slower than data.table::fread in my experience, unless you're reading the *same* dataset repeatedly.

Reposted by Mike O'Brien

Nick Cunningham @nickcunningham.bsky.social · 2d

“By 2028, an average family in the region will be paying around $70 a month extra on their electricity bills because of forecasted data center growth”

I'm once again asking why ratepayers are subsidizing AI titans?

www.eenews.net/articles/dat...