4/10/2023 0 Comments Python commands for grass gis![]() The "PERMANENT" mapset also contains some information about the location itself that is not found in other mapsets (projection info etc.), thus it must exist in every location. The "PERMANENT" mapset usually contains the read-only base maps like the elevation model, while the other locations are readable and writable by their owners. However, data in all mapsets for a given location can be read by anyone (unless prevented by UNIX file permissions). Users may only select (and thus modify) a mapset that they own (i.e., have created). Technically they are subdirectories under any location. A MAPSET may be a geographical or thematic subset of the parent LOCATION. You can think of a location as a data library for a region of interest defined by a coordinate reference system.Įvery GRASS session runs under the name of a MAPSET. Every location has a PERMANENT directory which stores some basic information about the whole location, and is a good place to park base files. Common example is ~/user/grassdata LOCATIONĪ LOCATION is some geographic extent of interest that contains data sets that must all be in the same coordinate system. The directory where LOCATIONS are stored.
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