Геоінформаційні системи

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Підкажіть якісь реальні ГІС для linux. Вимагається робота в реальній системі координат, оцифрування або імпорт векторних полігонів, їх оформлення кольром і товщиною, заливка областей, малювання кругових діаграм в певних точках карти. Щось типу incskape, але має працювати з масштабами.

[Володимир Лісівка]

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Quantum GIS (QGIS) is a user friendly Open Source Geographic Information
System (GIS) that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports
vector, raster, and database formats. QGIS is licensed under the GNU
General Public License. QGIS lets you browse and create map data on your
computer. It supports many common spatial data formats (e.g. ESRI ShapeFile,
geotiff). QGIS supports plugins to do things like display tracks from your GPS.

Geographic Information Systems Extensions to PostgreSQL

PostGIS adds support for geographic objects to the PostgreSQL object-relational
database. In effect, PostGIS "spatially enables" the PostgreSQL server,
allowing it to be used as a backend spatial database for geographic information
systems (GIS), much like ESRI's SDE or Oracle's Spatial extension. PostGIS
follows the OpenGIS "Simple Features Specification for SQL" and has been
certified as compliant with the "Types and Functions" profile.

GRASS - Geographic Resources Analysis Support System

GRASS (Geographic Resources Analysis Support System) is a Geographic
Information System (GIS) used for geospatial data management and
analysis, image processing, graphics/maps production, spatial
modeling, and visualization. GRASS is currently used in academic and
commercial settings around the world, as well as by many governmental
agencies and environmental consulting companies.