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https://github.com/fgregg/redroad
Finding brick-paved alleys in Chicago
https://github.com/fgregg/redroad
Last synced: about 2 months ago
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Finding brick-paved alleys in Chicago
- Host: GitHub
- URL: https://github.com/fgregg/redroad
- Owner: fgregg
- License: mit
- Created: 2020-12-27T00:25:41.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2020-12-27T01:06:52.000Z (about 4 years ago)
- Last Synced: 2024-10-15T09:55:50.758Z (3 months ago)
- Size: 2.93 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# redroad
Finding brick-paved alleys in Chicago
We want to use aerial imagery of Chicago to find alleys that are paved in brick.
Data Sources:
- [2019 Aerial Imagery from Cook County](https://img.cookcountyil.gov/arcgis/rest/services/Cook2019/ImageServer)
To get the source TIFFs we could automate the process
1. Walk the DownloadRasters endpoint to get the file id, ex https://img.cookcountyil.gov/arcgis/rest/services/Cook2019/ImageServer/download?rasterIds=1&geometry=&geometryType=esriGeometryEnvelope&format=&f=html
2. Get the raw file with the file endpoint: https://img.cookcountyil.gov/arcgis/rest/services/Cook2019/ImageServer/file?id=.\\Orthos2019\\RGBNIR\\01259900.tif&rasterId=1
There's about 5500 100-Mb source files, which would 550 gigabytes. I need to think about whether I want to get all the data on an external hard drive or figure out how get less data.