tppiotrowski

6 ms·

1.
by tppiotrowski 21d ago
Syabru Besi is downriver of the border and the starting point for the Langtang valley trek which is probably the third most popular trekking location in Nepal (behind Everest basecamp and Annapurna circuit). I think the tourist data they ha
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by tppiotrowski 1mo ago
The cloud effect is really nice!
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by tppiotrowski 1mo ago
Building data comes from OvertureMaps data which is a superset of OSM. I update the building data set each month so if you make changes in OSM they should show up on ShadeMap at latest 30 days later.
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by tppiotrowski 1mo ago
Nice. I'm really proud of how fast the annual sunlight calculation is for a location but it def needs better UX.
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by tppiotrowski 1mo ago
"Top of canopy" - view from above like looking down from an airplane window. You won't see any shadows looking down on a forest because you only see sunlight landing on the top of the canopy. Most accurate. "Below canopy
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by tppiotrowski 1mo ago
The map likely geolocated you somewhere without buildings (or maybe in the ocean) and where it is the middle of the night (so everything is in shadow). Try this link which shows the shadows at the Space Needle in Seattle WA today at 5pm: h
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by tppiotrowski 1mo ago
Agreed. From current data it's not possible to know the type of tree, only their locations so the model is simplified.
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by tppiotrowski 1mo ago
Sorry about that. The current tree estimate is done via computer vision but I am working on migrating to LiDAR backed data which should eliminate false positives. Just waiting for the TBs and TBs of data to download and then this Macbook M4
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by tppiotrowski 1mo ago
Thanks for the reply. Do you have a tree or bush outside your window? I estimate where tree shadows fall but it's not super accurate. In the settings dialog you can toggle, "below canopy", "above canopy" or disable
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by tppiotrowski 1mo ago
Site maintainer here. There is a polygon drawing tool in the upper right corner of the map. You can use it to draw polygons on the map and assign them a height. The shadows will update instantly. You can use it to add buildings that are mis
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by tppiotrowski 1mo ago
Website creator/maintainer here. Happy to try and diagnose the error if you elaborate on what the discrepancy is (tree, building, hill, etc)...
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by tppiotrowski 1mo ago
Not specifically for eclipses but has been useful in finding places where the sun will be visible during the current eclipse since the eclipse will occur when the sun is quite low on the horizon.
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by tppiotrowski 4mo ago
Happy to field any questions about the project.
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by tppiotrowski 4mo ago
Related project I did in 2014 tried to do this. I was a web developer so used the web audio APIs to trigger a recording when the decibel level exceeded a certain value. I was living in a big tent in my friends back yard in Sydney at the tim
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by tppiotrowski 6mo ago
Maybe we need a journal completely dedicated to replication studies? It would attract a lot of attention I think.
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by tppiotrowski 9mo ago
> This is a huge leap from the previous global dataset, which contained about 1.7 billion buildings I use the monthly release of Overture Maps building dataset and the last one had around 2.3 billion buildings iirc [1] https:/&#x2F
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by tppiotrowski 10mo ago
I remember thinking there's a small arbitrage opportunity in countries that don't have pennies and nickels. In NZ I believe stores round to the nearest decimal (.02, .01 => .00 and .03, .04 => .05). They lose on some sales b
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by tppiotrowski 10mo ago
I think what Claude generated code is still missing is the feeling of "I learned something from reading this code. Reading this code made me a better programmer". We're not there yet. That's why we have forgiveness for t
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by tppiotrowski 11mo ago
My experience using Claude code is that it's excellent at React/React Native and because apps are mostly a View layer the consequences of bad "vibes" are less far reaching.
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by tppiotrowski 1y ago
Protomaps does this already. They do a planet build each day and offer a download for free: https://docs.protomaps.com/basemaps/downloads
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by tppiotrowski 1y ago
I think mbtiles are being phased out for pmtiles because no DB required and can be served from static storage like R2/S3 (with a worker but hopefully the worker part goes away and they support byte offset requests soon)
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by tppiotrowski 1y ago
Fair. I used Phoenix because it's the only published city shading plan I've come across. It could just be that arid/hot climates are the places trees are needed. The study linked was in Houston, Texas. The Phoenix report is v
23.
by tppiotrowski 1y ago
Planting trees is hard. Phoenix AZ has a tree planting program called the Shade Phoenix Plan and they publish public reports. Watering and maintenance are a big cost. Iirc it's about $1000 to plant a tree. $100 for the tree and $900 fo
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by tppiotrowski 1y ago
There are a few other reasons that aren't baffling: roots destroy water pipes and heave sidewalks and pavement. They can interfere with power lines as well. :(
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by tppiotrowski 1y ago
Counterexample: https://x.com/levelsio/status/1730659933232730443
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by tppiotrowski 1y ago
The YC crowd seems to think the only worthwhile businesses are worth $1 billion+ otherwise why bother
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by tppiotrowski 1y ago
> He was told it would take $10,000 to fix, and the representative also let slip that all Tesla repairs are covered by warranty for A YEAR - meaning he could have got his suspension fixed for free in January 2024 They bought it December
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by tppiotrowski 1y ago
I agree with this. Any law that's not universally enforced: speeding, jaywalking, tax audit, etc is a tool for political persecution.
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by tppiotrowski 2y ago
Sorry about the burnout. Sounds like you've got skills and I'd encourage you to explore something smaller. There is a path as a solopreneur. I do sun and shadow modeling using publicly available datasets [1]. My customers are gard
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by tppiotrowski 2y ago
Why does this mostly affect the US? I've been abroad most of the year and eggs don't seem overly expensive.

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