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SpatiaLite (SQLite + spatial)

Open Beta

.sqlite · application/x-sqlite3

SpatiaLiteは、SQLite向けの空間拡張です。空間クエリ、インデックス、OGC標準を完全にサポートする、コンパクトな単一ファイルのデータベースフォーマットです。

今すぐSpatiaLiteをエクスポート ✨ オープンベータ — 無料、制限なし

主な機能

✓1つのファイルに完全なデータベースを格納

✓空間SQLクエリ

✓空間インデックス

✓SQLiteと互換

Example SpatiaLite export (central Moscow, 1x0.5 km) — Example: central Moscow, ~1×0.5 km, medium detail

SpatiaLiteフォーマットについて

SpatiaLite is SQLite with a spatial extension: a single file database, no server, yet real SQL with geometry, spatial functions and indexes. The file is simply copied, put into a repository or onto a flash drive and works anywhere.

The format is taken when the data has to be computed with rather than admired: select buildings within a radius, sum up street length by type, join layers with a query, filter by an attribute. All of that is done with a query straight against the file, without deploying PostGIS.

What is inside: one database file where each OSM layer is a separate table with geometry and attributes; the service tables are filled in and spatial indexes are built at write time. The coordinates are WGS84 (EPSG:4326). QGIS opens the file by drag and drop, GDAL/OGR and Python read it directly.

About the neighbouring format: GeoPackage is also SQLite and also a single file, but it is an OGC standard and other people's software understands it better. SpatiaLite wins where you write the queries yourself and need its full set of spatial functions.

SpatiaLiteファイルを開けるプログラム

次のプログラムおよびアプリケーションは、OSM2CDRからエクスポートしたSpatiaLite (SQLite + spatial)（.sqlite）ファイルを開き、編集し、利用できます：

🌎QGIS 💻SpatiaLite GUI 💻DB Browser for SQLite 💻Python (sqlite3) 💻GDAL/OGR

Format specifications

Open standard
3D coordinates supported
Lossless (no quality loss)
Stores feature attributes
Output: 1 file
SpatiaLite .sqlite (open SQLite extension). Indexed spatial queries with R-Tree. Opens in QGIS, SpatiaLite GUI.

SpatiaLite地図を利用するユーザー

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ローカルでの GIS 解析

Spatial SQL queries straight against the file, with no database server to deploy.

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モバイルアプリ

A compact database for Android or iOS: SQLite is already in the system, and the map travels with the app.

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軽量データベース

One file instead of a schema in PostGIS where there is not much data and simplicity matters more.

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プロトタイピング

A quick test of a hypothesis on real data before building a full pipeline.

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オフライン作業

Data at hand without a network — the database sits on disk and does not depend on a connection.

SpatiaLiteのエクスポート方法

範囲を選択

osm2cdr.ruのインタラクティブ地図上で長方形またはポリゴンを描画します

SpatiaLiteを選択

利用可能な127種類のエクスポートフォーマットの一覧からSpatiaLite (SQLite + spatial)を選択します

エクスポート

「エクスポート」をクリックすると、1〜5分で.sqliteファイルを受け取れます

ダウンロード

完成したSpatiaLiteファイルをダウンロードし、QGISで開きます

エクスポート後の開き方

QGIS — drag the file into the program window or add it through the Data Source Manager; the tables will appear as ordinary layers.
DB Browser for SQLite — look through the tables and run a query; for spatial functions load the mod_spatialite module.
spatialite-gui and the console spatialite — the project's own tools: queries with spatial functions work out of the box.
Python — sqlite3 with mod_spatialite loaded for queries, or geopandas.read_file with the table you need given as the layer.
GDAL — ogr2ogr converts the database into GeoPackage and back with one command if another format turns out to be needed.

SpatiaLiteの人気地図

フリー