

įurther steps have been taken by the Free World Maps Foundation and others to have the data licensed under the GNU General Public License, while remaining copyrighted, as an alternative to the public domain. Various public groups are making efforts to have all VMAP1 data moved to the public domain in accordance with FOIA. However, some data may be commercialised by national mapping agencies, sometimes as a consequence of privatisation. Following the trend of the United States, much of the VMAP data has been offered to the public domain.īut many countries consider mapping and cartography a state monopoly for such countries, the VMAP Level1 data are kept out of the public domain.

The USA Freedom of Information Act and the Electronic Freedom of Information Act guarantee access to virtually all GIS data created by the US government.
Vector based wine maps download#
Only 57 of them are currently (2006) available for download from NGA.

VMAP Level 1 is divided in 234 geographical tiles. Vertical accuracy: 0.5–2 Contour Interval (for example: if contour interval 50 m, accuracy will be 25 to 100m).Level 1 tiles follow the MIL-V-89033 standard. Level 1 data are equivalent to a medium scale resolution (1:250,000). South Asia and Australia (SASAUS) v0sas.South America, Africa, and Antarctica (SOAMAFR) v0soa.The entire coverage has been divided into four data sets: Data are structured following the Vector Product Format (VPF), compliant with standards MIL-V-89039 and MIL-STD 2407. The data are offered either on CD-ROM or as direct download, as they have been moved to the public domain. Level 0 provides worldwide coverage of geo-spatial data and is equivalent to a small scale (1:1,000,000). The vector map product are usually seen as being of three different types: low resolution (level 0), medium resolution (level 1) and high resolution (level 2). utility networks (cross-country pipelines and communication lines).Horizontal Datum: World Geodetic System 1984 (WGS 84).įeatures and data attributes are tagged utilizing the international Feature and Attribute Coding Catalogue (FACC).Coordinate reference system: Geographic coordinates stored in decimal degrees with southern and western hemispheres using negative values for latitude and longitude, respectively.There are ongoing discussions about making most of the information available in the public domain. Level 1 (global coverage at medium resolution) is only partly in the public domain. Level 0 (low resolution) coverage is global and entirely in the public domain. The Vector Map (VMAP), also called Vector Smart Map, is a vector-based collection of geographic information system (GIS) data about Earth at various levels of detail.
