Show HN: Ppgrid – Rasterising points in minutes, not hours
2 by marzukia | 0 comments on Hacker News.
Hi all, I wanted to share a recent library I made for myself since I continually have to work with large-scale point data spanning millions of rows. I generally found existing IDW tools are insanely slow and unreliable with the datasets I commonly work with. ppgrid is an open source GIS tool and it is intended to create beautiful visualisations that don't take an absurd amount of time to process. It uses a modified Inverse Distance Weighting (IDW) approach: instead of having to traverse every single point for every single grid O(N*M), it precalculates which points intersect which grids. This means that we essentially avoid the multiplicative scaling costs associated with traditional IDW. For perspective, ppgrid is significantly faster than IDW from the likes of gdal_grid or GRASS, in the order of 17x faster. I say in the order of as I couldn't really effectively test IDW on the crappy laptop I use beyond 1M points, where as ppgrid happily chewed through 16mil points. My goals/intention for this post is twofold: - looking to share it as a tool for anyone who may find it relevant or useful - looking to stress-test it with different types of point data and try to surface any quirks, bugs or random edge case failures Important note which I discuss more in my write-up: ppgrid is not yet stress-tested or validated in terms of statistical correctness, as my current use case prioritises visualisation. AI Disclosure & Creds: I've been pair-coding this with my local Qwen3.8 27B agent, I discuss this in my write-up further. I have ~9YoE in GIS work and ~10YoE as a fullstack. GitHub Repo: https://ift.tt/SA3280d Any other feedback/comments are welcome, please let me know if this has helped as I'd love to see it in action.
Watch the number of websites being hacked today, one by one on a page, increasing in real time.
New ask Hacker News story: Ask HN: Who is the inspiration for your thinking?
Ask HN: Who is the inspiration for your thinking?
2 by SMAAART | 1 comments on Hacker News.
Leaving broad and vague by design. Who formed your thinking? Philosophers? Business magnates? Ancient wisdom? Or more recent thinking? Socrates to Bill Gates? I'll go first, in no particular order: - The Ancient Stoics - D. T. Suzuki, Thich Nhat Hanh, and other - C G Jung - Alfred Adler - Arthur Schopenhauer - Friedrich Nietzsche - Fyodor Dostoevsky - Franz Kafka - Niccolo Machiavelli (highly misunderstood, I strongly suggest starting by watching the "Learning to Love Machiavelli: Don MacDonald at TEDxBoston" - George Pólya
2 by SMAAART | 1 comments on Hacker News.
Leaving broad and vague by design. Who formed your thinking? Philosophers? Business magnates? Ancient wisdom? Or more recent thinking? Socrates to Bill Gates? I'll go first, in no particular order: - The Ancient Stoics - D. T. Suzuki, Thich Nhat Hanh, and other - C G Jung - Alfred Adler - Arthur Schopenhauer - Friedrich Nietzsche - Fyodor Dostoevsky - Franz Kafka - Niccolo Machiavelli (highly misunderstood, I strongly suggest starting by watching the "Learning to Love Machiavelli: Don MacDonald at TEDxBoston" - George Pólya
New Show Hacker News story: Show HN: CaughtShipping – curfew app for developers, enforced by a public wall
Show HN: CaughtShipping – curfew app for developers, enforced by a public wall
2 by misulicus | 0 comments on Hacker News.
I am always working well past the normal work hours. Sometimes even past midnight. Then one day I thought, what if I could have something to keep me accountable for doing this? So I built a small app that will call me out when I break my downtime. You set a Curfew in the app (Curfew must start between 8:00 PM and 10:00 PM). If a dev app (editor, terminal, etc.) is used on your computer after the set curfew, a countdown starts. If you close the app before the timer runs out, you are safe. If you keep working, you get "caught". Your streak is now broken, and you will be posted on the Wall, on the public blotter section. If you keep your nights clean, you will rank higher and higher on the Wall of Rest instead. The App does not look at what work you do; we don't care about that. I would love to get feedback from as many users as possible. The app is free, and a 7-day report is available locally in the app itself. There is a paid plan that can give you up to 90 days of reports!
2 by misulicus | 0 comments on Hacker News.
I am always working well past the normal work hours. Sometimes even past midnight. Then one day I thought, what if I could have something to keep me accountable for doing this? So I built a small app that will call me out when I break my downtime. You set a Curfew in the app (Curfew must start between 8:00 PM and 10:00 PM). If a dev app (editor, terminal, etc.) is used on your computer after the set curfew, a countdown starts. If you close the app before the timer runs out, you are safe. If you keep working, you get "caught". Your streak is now broken, and you will be posted on the Wall, on the public blotter section. If you keep your nights clean, you will rank higher and higher on the Wall of Rest instead. The App does not look at what work you do; we don't care about that. I would love to get feedback from as many users as possible. The app is free, and a 7-day report is available locally in the app itself. There is a paid plan that can give you up to 90 days of reports!
New Show Hacker News story: Show HN: I discovered roads in the US across > 1000 themes
Show HN: I discovered roads in the US across > 1000 themes
5 by 91awebsi | 1 comments on Hacker News.
This interactive dataviz I created lets you explore about ~1k different themes I computed by cross referencing popular Wikidata articles against OSM roads.
5 by 91awebsi | 1 comments on Hacker News.
This interactive dataviz I created lets you explore about ~1k different themes I computed by cross referencing popular Wikidata articles against OSM roads.
New ask Hacker News story: Ask HN: Who's still keeping a DOS machine up because the business depends on it?
Ask HN: Who's still keeping a DOS machine up because the business depends on it?
6 by mlaux | 0 comments on Hacker News.
Do you currently work with or know anyone who is still using: * dBase/Clipper/CLARION/Paradox/other DOS RAD environments on period hardware to run business processes? * CNC mills/spectrometers/microscopes/other industrial instruments controlled by ISA cards (either bespoke or standards like GPIB)? * Anything with a parallel port dongle? If so, I'd be very interested in hearing your experience here, or feel free to send me an email at the address in my profile. I'm not trying to sell anything, just doing some research for an idea around keeping these going on modern hardware.
6 by mlaux | 0 comments on Hacker News.
Do you currently work with or know anyone who is still using: * dBase/Clipper/CLARION/Paradox/other DOS RAD environments on period hardware to run business processes? * CNC mills/spectrometers/microscopes/other industrial instruments controlled by ISA cards (either bespoke or standards like GPIB)? * Anything with a parallel port dongle? If so, I'd be very interested in hearing your experience here, or feel free to send me an email at the address in my profile. I'm not trying to sell anything, just doing some research for an idea around keeping these going on modern hardware.