Charlie Loyd @vruba@everything.happens.horse

This seems sloppy, but if you think about it, the perceived temperature at infinite wind speed would also be infinite, due to ram effect heating and so on, so this actually has the correct sign for almost all wind speeds.

Also, there was a standard wind chill index that was just a quick polynomial fit, and for really extreme winds, it inverted and modeled increasing apparent temperature: https://meteo.lcd.lu/papers/windchill/newwindchill.html

Reading about heat indexes, which reminds me to let you know that there are two competing units for how much clothing a person is wearing – the clo and the tog: https://ergo.human.cornell.edu/studentdownloads/DEA3500notes/Thermal/thcomnotes1.html

Stipple of a hillshade of Tahoma.

The point placing algorithm is freely adapted from @BartWronski’s version of Ahmed, Ren, and Wonka’s stippling: https://bartwronski.com/2022/08/31/progressive-image-stippling-and-greedy-blue-noise-importance-sampling/

The data is from the WA lidar portal: https://lidarportal.dnr.wa.gov/

The hillshade is a mean of 1,000 angles from which the sun actually illuminates Tahoma over the year. (None of that top-left stuff for me, thanks.)

Of all the ways to be cursed, I am lucky that my main hex is to be interested in weird little corners of image processing where you need some niche domain knowledge and are, with overwhelming likelihood, forgotten in the deepest dungeons of academia or industry and have no interest in discussing it with a rando like me.

Buoy 46059 is having a real time, and this isn’t even that close to the middle of the storm. https://www.ndbc.noaa.gov/station_page.php?station=46059

I’ve been mostly off Mastodon (and almost completely off Twitter).

For now, I’m signing in occasionally and following back people whose handles I recognize – no disrespect if I don’t recognize you.

My head’s been in some side projects. E-mail (charlie at planet dot parts) is the best way to catch up with me for now.

What’s the best way to to a mastodon version of https://twitter.com/salkjorts/ ?

https://somethingaboutmaps.wordpress.com/2022/11/14/the-unnecessary-peril-of-the-fuller-projection/ is really unfortunate; I think the Fuller projection is useful and should be used more seriously.

I do suspect that you could find better projections on similar principles by (practically) exhaustive search of polyhedron rotations on Earth’s landmasses.

https://medium.com/vis-gl/unfolding-the-earth-myriahedral-projections-in-webgl-6b2bcfd00a30 goes in that direction and I think its octahedron is already arguably better than Fuller for its simplicity.

I’ll tell you what I would pay $8 for is a tier of YouTube where the tutorial videos didn’t contain self-deprecating laughter at bad jokes.

Sometimes you’ll encounter a scale-related image processing problem and think “I know! I’ll use pyramids!” Now you have 1.333 problems.

Just a few of the many textures present on Earth.