Show HN: Every mountain, building and tree shadow mapped for any date and time
64 by tppiotrowski | 121 comments on Hacker News.
I've been working on this project for about 4 years. It began as terrain only because world wide elevation data was publicly available. I then added buildings from OpenStreetMap (crowd sourced) and more recently from Overture Maps data. Some computer vision/machine learning advancements [1] in the past few years have made it possible to estimate tree canopy heights using satellite imagery alone making it possible to finally add trees to the map. The data isn't perfect, but it's within +/- 3 meters of so. Good enough to give a general idea for any location on Earth. Happy to answer any questions. [1] https://ift.tt/y1bRYBE
Friday, May 31, 2024
Thursday, May 30, 2024
New top story on Hacker News: Show HN: Webhooks for Any Event
Show HN: Webhooks for Any Event
9 by halotrope | 2 comments on Hacker News.
Hi, co-founder of markets.sh here. We are doing a lot of news processing and analysis around stocks and companies. One feature people like to use is “alerts” at certain price points. We have now extended this with LLM filters on the whole news feed so that you can create (near) real-time webhooks on arbitrary events like: - Notify me when Nvidia is worth 10 trillion - Notify me about AI breakthroughs - Notify me when Intel is the market leader again - Notify me about successful Starship launches - Notify me when a war breaks out - Notify me about bankrupt unicorn startups - Notify me about significant economic events The feature is still very early. If you write that you’re from Hacker News in the support chat, I’ll give personal support. Would greatly appreciate all feedback
9 by halotrope | 2 comments on Hacker News.
Hi, co-founder of markets.sh here. We are doing a lot of news processing and analysis around stocks and companies. One feature people like to use is “alerts” at certain price points. We have now extended this with LLM filters on the whole news feed so that you can create (near) real-time webhooks on arbitrary events like: - Notify me when Nvidia is worth 10 trillion - Notify me about AI breakthroughs - Notify me when Intel is the market leader again - Notify me about successful Starship launches - Notify me when a war breaks out - Notify me about bankrupt unicorn startups - Notify me about significant economic events The feature is still very early. If you write that you’re from Hacker News in the support chat, I’ll give personal support. Would greatly appreciate all feedback
Wednesday, May 29, 2024
New top story on Hacker News: The Consequences of One's First Programming Language
The Consequences of One's First Programming Language
4 by BerislavLopac | 0 comments on Hacker News.
4 by BerislavLopac | 0 comments on Hacker News.
Tuesday, May 28, 2024
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New top story on Hacker News: OpenAI Scraps Team That Researched Risk of 'Rogue' AI
OpenAI Scraps Team That Researched Risk of 'Rogue' AI
11 by aleph_minus_one | 0 comments on Hacker News.
11 by aleph_minus_one | 0 comments on Hacker News.
Friday, May 17, 2024
New top story on Hacker News: Show HN: Drivr – VR with real vehicles [video]
Show HN: Drivr – VR with real vehicles [video]
7 by greghgradwell | 2 comments on Hacker News.
This project combines VR with a real vehicle that you are controlling (or is controlling itself, in some scenarios). One advantage this has over traditional VR motion experiences is that your senses all agree with each other, thus greatly reducing the likelihood of motion sickness. The go-kart seen in this video is drive-by-wire and steer-by-wire, so the system will not let the player exit the defined safe area. If a player goes off course, the vehicle will take control, and return them to the start. The autonomous capabilities also allow for games where the player can focus on other objectives other than driving, such as target shooting. No infrastructure is required other than the vehicle and an open place to drive (which honestly has been the most challenging part lately). If you're interested in this project, I'd love to connect!
7 by greghgradwell | 2 comments on Hacker News.
This project combines VR with a real vehicle that you are controlling (or is controlling itself, in some scenarios). One advantage this has over traditional VR motion experiences is that your senses all agree with each other, thus greatly reducing the likelihood of motion sickness. The go-kart seen in this video is drive-by-wire and steer-by-wire, so the system will not let the player exit the defined safe area. If a player goes off course, the vehicle will take control, and return them to the start. The autonomous capabilities also allow for games where the player can focus on other objectives other than driving, such as target shooting. No infrastructure is required other than the vehicle and an open place to drive (which honestly has been the most challenging part lately). If you're interested in this project, I'd love to connect!
Thursday, May 16, 2024
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New top story on Hacker News: The $21B influencer industry has gone off the rails
The $21B influencer industry has gone off the rails
38 by unclebucknasty | 28 comments on Hacker News.
38 by unclebucknasty | 28 comments on Hacker News.