gsimap

The source code for GSI Maps, the web mapping service by the Geospatial Information Authority of Japan (GSI).

日本語のREADMEはこちらです: README.ja.md

Demos

• Official GSI Maps Site: http://maps.gsi.go.jp/
• Demo from this Repository: http://gsi-cyberjapan.github.io/gsimaps/

Features

• Dynamic Map Layers: Configure base maps and overlays using simple text files (layers.txt).
• Vector Tile Support: Renders high-performance vector data.
• 3D Terrain Visualization: Displays a 3D map using GSI’s Digital Elevation Model (DEM) data.
• Rich Data Overlays: Includes built-in data for magnetic declination, municipal boundaries, and designated emergency evacuation sites.
• SPARQL Integration: Queries and displays open data for civic and emergency facilities.
• Layer Definition Editor: A built-in tool (config.html) to visually manage and edit map layer definitions.

Getting Started

This project is a static website. No build process is required.

1. Download or clone this repository.
2. Place the files on any web server.
3. Open index.html in your browser.

Note: While most features work when opening index.html directly from your local filesystem, a web server is required for full functionality, including vector tile handling.

Customization

You can customize the map to suit your needs:

• Change the Logo: Edit index.html to replace the default logo with your own.
• Configure Map Layers: Use the Layer Definition Editor to create your own layers.txt file, or edit the existing ones in the /layers_txt/ directory.

Data Sources & Attribution

• This repository is the source for the official GSI Maps site at http://maps.gsi.go.jp/.
• The geocoding service is provided by the Center for Spatial Information Science, University of Tokyo.
• The application uses various third-party libraries, including Leaflet and jQuery. See LICENSE_LIBRARIES.md for a full list.
• fukuno.js is included under a CC BY license by Taisuke Fukuno.
• Disclaimer: Server-side services called from gsimap are not guaranteed to be persistently in operation and may be updated or discontinued without prior notice.

See Also

• Layer Definition Editor: http://gsi-cyberjapan.github.io/gsimaps/config.html
• Layer Definition Specification: https://github.com/gsi-cyberjapan/layers-dot-txt-spec
• Official Layer Examples: https://maps.gsi.go.jp/development/ichiran.html

License

The source code created by GSI is licensed under a 2-clause BSD License. See the LICENSE file for details.

Hashtag

The hashtag for this project is #gsimaps.

• Twitter: https://twitter.com/hashtag/gsimaps

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