July 18, 2023 • #
Google has released a massive dataset of building footprints, extracted from high resolution satellite imagery:
The dataset contains 1.8 billion building detections, across an inference area of 58M km2 within Africa, South Asia, South-East Asia, Latin America and the Caribbean.
1.8 billion features is enormous, and it doesn’t even cover North America, Western Europe, most of China, Japan, or Australia. Incredible stuff, licensed under CC-BY-4 and ODbL.
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July 4, 2020 • #
AWS is making its entrance into the low-code app platform space.
Geoff Zeiss on combining satellite imagery and spatial analysis to identify tree encroachment in utilities:
Transmission line inspections are essential in ensuring grid reliability and resilience. They are generally performed by manned helicopters often together with a ground crew. There are serious safety issues when inspections are conducted by helicopter. Data may be collected with cameras and analyzed to detect...
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February 22, 2020 • #
This is a product from Loveland Technologies, with a cohesive dataset of parcel boundaries provided as an API for application builders.
More on their parcel data and how they do it here.
My goal tracking efforts pale in comparison to what Julian Lehr is doing. I might give a try to Airtable for mine, also. I’ve been in Google Sheets since mine’s pretty basic, but AT might make it more mobile-friendly for editing.
August 17, 2019 • #
Some cool work from Vladimir Agafonkin on a library for RTIN mesh generation, with an interactive notebook to experiment with it on Observable:
An RTIN mesh consists of only right-angle triangles, which makes it less precise than Delaunay-based TIN meshes, requiring more triangles to approximate the same surface. But RTIN has two significant advantages:
- The algorithm generates a hierarchy of all approximations of varying precisions — after running it once, you can quickly retrieve a mesh...
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May 29, 2019 • #
This week we’ve had Kurt Menke in the office (of Bird’s Eye View GIS) providing a guided training workshop for QGIS, the canonical open source GIS suite.
It’s been a great first two days covering a wide range of topics from his book titled Discovering QGIS 3.
The team attending the workshop is a diverse group...
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February 2, 2019 • #
Our friends over at the Santa Barbara County Sheriff have been using a deployment of Fulcrum Community over the last month to log and track evacuations for flooding and debris flow risk throughout the county. They’ve deployed over 100 volunteers so far to go door-to-door and help residents evacuate safely. In their initial pilot they visited 1,500 residents. With this platform the County can monitor progress in real-time and maximize their resources to the areas that need the most attention.
“This...
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December 23, 2018 • #
Each year GIS developer and cartographer Nyall Dawson puts together a thread of daily tweets leading up to Christmas, each with a helpful tip for QGIS. You can see all of them at the hashtag #24daysofqgis.
Here are a few of my favorites:
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October 13, 2018 • #
I’ve had R on my list for a long time to dig deeper with. A while back I set myself up with RStudio and went through some DataCamp stuff. This online book seems like excellent material in how to apply R to geostatistics.
Given where we are with Fulcrum in the product lifecycle, this rang very familiar on the struggles with how to listen to customers effectively, who to listen to, and how to absorb...
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