GSJ

Implementation of "Nishioka-Nagatu-2015 method" of "Geological Survey of Japan" (GSJ).

Features

• Altitude Tile; (ja: 標高タイル)
  • Nishioka-Nagatsu-2015 method (ja: 西岡-長津-2015年法)
    • Decoder
    • Encoder

Examples or Tests

• To see: ./tests/test.rs

Reference

• https://www.jstage.jst.go.jp/article/geoinformatics/26/4/26_155/_article/-char/en; en-US
  • https://www.jstage.jst.go.jp/article/geoinformatics/26/4/26_155/_article/-char/ja; ja-JP
• https://www.gsj.jp/; ja-JP

See also

• https://maps.gsi.go.jp/development/demtile.html; ja-JP

License

• MIT

GSI files in tests/ dir

These files are GSI's DEM tile. It's for only to use unit tests, no need essentially.

1. tests/gsi-dem-z8-x229-y94.png; from https://cyberjapandata.gsi.go.jp/xyz/dem_png/8/229/94.png
2. tests/gsi-dem-z8-x229-y94.txt; from https://cyberjapandata.gsi.go.jp/xyz/dem/8/229/94.txt

• https://www.gsi.go.jp/kikakuchousei/kikakuchousei40182.html; ja-JP

Author

• USAGI.NETWORK / Usagi Ito https://usagi.network/