mourner

18 ms·

1. 121.▲
   by mourner 7y ago

   Observable makes it easy to fork notebooks and make modifications, so I'll be happy to see other parking arrangements! I made the viz for my real-world situation — reverse angle parking is quite common where I live (Ukraine), and it&#x
2. 122.▲
   by mourner 7y ago

   There's just one lane here — the thick line at the top is a barrier (a line of bollards).
3. 123.▲
   by mourner 7y ago

   Thank you! A fellow programmer Jacob even printed that viz as a woven textile — floating point errors can be very pretty :) https://twitter.com/jashkenas/status/1191829600214507520
4. 124.▲
   by mourner 7y ago

   It's easy enough if you have enough space, but in this case the road is so narrow that I can't move forward much in the second maneuver. I'm sure I'll figure out the right angles with practice eventually, the reverse tur
5. 125.▲
   by mourner 7y ago

   If you find any errors in the math, please let me know! I think the diagram supports your description — even with the wheel turned to the max, you will never hit anything close to the back wheel when reversing (both wheel axes are marked),
6. 126.▲
   Kinematics of Reverse Angle Parking(observablehq.com)

   138 points by mourner 7y ago|78 comments
7. 127.▲
   by mourner 7y ago

   Note: I didn't create Mapbox GL, I'm just a part of the core team: https://github.com/mapbox/mapbox-gl-js/graphs/contributors Don't have any particular OpenLayers examples in mind at the moment
8. 128.▲
   by mourner 7y ago

   Leaflet author here! Just wanted to note that if you haven't looked into OpenLayers in a few years, you absolutely should — it's astonishing how much it progressed: from something that I was so frustrated with that it prompted me
9. 129.▲
   by mourner 7y ago

   > Even if I become the number one, there is an entity that cannot be defeated Hard for me to empathize with this argument for his retirement. If we can't outrun a car, does that make running competitions pointless? The existence of
10. 130.▲
    by mourner 7y ago

    I've used Kindles for 7 years now, it's by far my most beloved gadget and I don't go anywhere without it. And I love it just the way it is — a reader of books without any other distractions. The only thing I really wish they&
11. 131.▲
    by mourner 7y ago

    I don't think Amazon cares that much about Kindle sales — they made it deliberately way cheaper than other e-ink models when it was introduced. Their goal is to profit from book sales on their platform. I bought about a hundred electro
12. 132.▲
    by mourner 7y ago

    Ha, looks like we missed the word "augmented" here :) Wow, that page is a treasure trove of meaningless buzzwords.
13. 133.▲
    by mourner 7y ago

    Oh yes, merged 22 PRs since the post so far :)
14. 134.▲
    by mourner 7y ago

    Author here — really happy that a joke project I did 7.5 years ago (while working at a typical outsourcing company) finally got a spotlight on HN! Please feel free to contribute! I cleaned up and modernized the repo a little recently, but d
15. 135.▲
    by mourner 7y ago

    I think this is actually doable — the GFS data this project pulls from has a lot of levels, see for example here https://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_0p25.pl?dir=...
16. 136.▲
    by mourner 7y ago

    Interesting, can you share the exact log of the errors you're seeing? There are none for me on both Firefox & Chrome with uBO.
17. 137.▲
    by mourner 7y ago

    Thank you!
18. 138.▲
    by mourner 7y ago

    Thank you very much!
19. 139.▲
    by mourner 7y ago

    Author here — very happy to see this resurfacing on HN! So, ask me anything!
20. 140.▲
    Non-Robust Arithmetic as Art(observablehq.com)

    53 points by mourner 7y ago|2 comments
21. 141.▲
    by mourner 7y ago

    Alternatively, you can generate Pi digits one by one in a streaming way: https://observablehq.com/@mourner/calculating-pi-digits
22. 142.▲
    Show HN: Fast Robust Geometric Predicates in JavaScript(github.com)

    1 points by mourner 7y ago|0 comments
23. 143.▲
    Non-Robust Arithmetic as Art(observablehq.com)

    1 points by mourner 7y ago|0 comments
24. 144.▲
    by mourner 7y ago

    BTW, for digital cartography, I highly recommend The Guide to Map Design by Amy Lee (Mapbox): https://www.mapbox.com/map-design/
25. 145.▲
    by mourner 7y ago

    I would really love to see your toy Mapbox renderer — please share it, even if unpolished! We'd benefit a lot from fresh ideas on how to improve Mapbox GL performance.
26. 146.▲
    by mourner 7y ago

    Yeah, it's a thin balance, and to me as someone without years of experience in graphics programming, GPU feels like such a blackbox — hard to predict what will be the actual bottleneck until you implement an approach fully, with real-w
27. 147.▲
    by mourner 7y ago

    Really weird! No idea what could be the culprit. Some GPU bug maybe?
28. 148.▲
    by mourner 7y ago

    Thank you!
29. 149.▲
    by mourner 7y ago

    Would love to learn more, since it seems counter-intuitive — are there any studies / benchmarks on this for modern hardware? Why would a uniform mesh with, say, 10x more triangles perform better if it's not updated often (e.g. a f
30. 150.▲
    by mourner 7y ago

    Everyone's hardware is different, so I've included notes about computational complexity of the algorithm in the notebook too.