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add Bertold's description about the file names. https://github.com/BertoldVdb/ZoneDetect/issues/43#issuecomment-1917285937
14 lines
740 B
Markdown
14 lines
740 B
Markdown
# Database files
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Please download the database files [here](https://cdn.bertold.org/zonedetect/db/db.zip) or create them using the builder.
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To use the builder, first install [shapelib](https://github.com/OSGeo/shapelib), then:
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cd database/builder
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./makedb.sh
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This will create database files in `out` and `out_v1`, as well as a `db.zip` containing both directories.
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The files in the folder out\_v1/ use a newer format and use less space to encode the same information.
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The numbers in on the file names indicate the resolution. The `*21` file has a higher resolution for storing the borders, but it is larger. The `*16` file has a longitude resolution of 0.0055 degrees (~0.5km) and the `*21` file has 0.00017 degrees (~20m)
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