# Install osmcoastline with Homebrew, apt Extracts coastline data from OpenStreetMap planet file. Version 2.5.0 via Homebrew; verified 2026-06-25. ## Install ```sh sudo av install brew:osmcoastline ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install osmcoastline ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install osmcoastline ``` Evidence: Debian stable package indexes: osmcoastline from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz ## Package facts - **Package key:** brew:osmcoastline - **Package manager:** Homebrew - **Package manager page:** - **Version:** 2.5.0 - **Source summary:** Extracts coastline data from OpenStreetMap planet file - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-3.0-or-later - **Source archive:** - **Last updated:** 2026-06-25T13:38:00+02:00 - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - osmcoastline (cli) - osmcoastline_filter (cli) - osmcoastline_readmeta (cli) - osmcoastline_segments (cli) - osmcoastline_ways (cli) - osmcoastline (alias) - osmcoastline_filter (alias) - osmcoastline_readmeta (alias) - osmcoastline_segments (alias) - osmcoastline_ways (alias) ## Dependencies - gdal - geos - libspatialite - lz4 ## Build dependencies - cmake - libosmium - protozero ## Uses from macOS - bzip2 - expat - sqlite ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 2.5.0 - Package-manager updated: 2026-06-25 - Local data: ok - Upstream repository: https://github.com/osmcode/osmcoastline - Upstream latest detected: v2.5.0 (current) ## Project history and usage osmcoastline extracts OpenStreetMap coastline ways from planet-scale input and assembles them into land and water polygons for renderers and data users. It handles one of OSM's oddest global data problems: editable coastline segments must become valid, usable polygons. ### Project history Jochen Topf announced the work on March 7, 2012, while explaining the long-standing problem of turning `natural=coastline` ways into proper polygons. The same day, the osmcode/osmcoastline GitHub repository was created. The blog post frames osmcoastline as a rewrite of an older coastcheck-based workflow that had become slow and difficult to maintain. The new implementation used Osmium to scan OSM files, assemble coastline rings, produce error information, and leave room for output options such as land polygons, water polygons, clipping, and splitting. ### Adoption history OpenStreetMapData's coastline-processing page says OSMCoastline was developed specifically to assemble coastline data, apply fixes where needed, and create the published coastline datasets on that site. It also feeds detected coastline errors onward to Geofabrik's OSM Inspector so mappers can correct source data. ### How it is used The man page describes `osmcoastline` as reading an input file, usually a planet file or filtered output, and writing coastline polygons to a Spatialite database. Options control overlap, gap-closing distance, warning behavior, output formats, and projection-specific details. The repository also ships helper commands such as `osmcoastline_filter`; the README says the filter can reduce a planet file to the nodes and ways needed for coastline assembly, producing a file less than one percent of the original planet size. ### Why package nerds care osmcoastline is a compact example of domain-specific packaging: it depends on OSM parsing, geometry libraries, Spatialite, GDAL, GEOS, zlib, and optional PBF compression details, but exposes a focused CLI for one global map-production job. ### Timeline - 2012-03-07: Jochen Topf publishes the OSM Coastlines blog post and releases the osmcoastline code. - The project grows around libosmium, protozero, GDAL, GEOS, SQLite/Spatialite, and PBF support. - OpenStreetMapData uses OSMCoastline for published coastline processing and error reporting. ### Related projects - libosmium provides OSM file handling; OpenStreetMapData publishes derived coastline datasets; Geofabrik OSM Inspector surfaces coastline errors; renderers consume the assembled land and water polygons. ### Sources - - - - - - - ## Security Notes No matching local secret-handling manifest was found for osmcoastline. Nucleus package metadata is still published here so future coverage has a stable package URL. ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** osmcoastline - **Version Scheme:** 0 - **Revision:** 1 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Debian apt - osmcoastline - 2.4.1-1: normalized package name match | Debian stable package indexes: osmcoastline from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Extract coastline data from OpenStreetMap planet file | https://osmcode.org/osmcoastline/ - Ubuntu apt - osmcoastline - 2.4.0-2build4: normalized package name match | Ubuntu 24.04 LTS package indexes: osmcoastline from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Extract coastline data from OpenStreetMap planet file | https://osmcode.org/osmcoastline/ ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Database and data packages](https://www.automicvault.com/pkg/database-data-tools/) - Matched database, SQL, migration, or data-store metadata. - [gdal](https://www.automicvault.com/pkg/brew/gdal/) - Runtime dependency declared by Homebrew. - [geos](https://www.automicvault.com/pkg/brew/geos/) - Runtime dependency declared by Homebrew. - [lz4](https://www.automicvault.com/pkg/brew/lz4/) - Runtime dependency declared by Homebrew. - [cmake](https://www.automicvault.com/pkg/brew/cmake/) - Build dependency declared by Homebrew. - [imposm3](https://www.automicvault.com/pkg/brew/imposm3/) - Shares av.db curated category or tags: cli, data, geospatial, openstreetmap. - [osm-pbf](https://www.automicvault.com/pkg/brew/osm-pbf/) - Shares av.db curated category or tags: cli, data, geospatial, openstreetmap. - [osmfilter](https://www.automicvault.com/pkg/brew/osmfilter/) - Shares av.db curated category or tags: cli, data, geospatial, openstreetmap. - [osmium-tool](https://www.automicvault.com/pkg/brew/osmium-tool/) - Shares av.db curated category or tags: cli, data, geospatial, openstreetmap. - [osmosis](https://www.automicvault.com/pkg/brew/osmosis/) - Shares av.db curated category or tags: cli, data, geospatial, openstreetmap. - [geoserver](https://www.automicvault.com/pkg/brew/geoserver/) - Shares av.db curated category or tags: cli, data, geospatial. - [gpsbabel](https://www.automicvault.com/pkg/brew/gpsbabel/) - Shares av.db curated category or tags: cli, data, geospatial. ## Combined YAML source View the package source record on GitHub. [combined/osmcoastline.yml](https://github.com/automic-vault/db/blob/main/combined/osmcoastline.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph