Projection: Difference between revisions

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Read on in {{cmd|projectionintro}}...
Read on in {{cmd|projectionintro}}...
== Creation of a GRASS location ==
* for the concept, see [[Location and Mapsets]]
* for creating a location, see [[GRASS Location Wizard]]


= Support Material =
= Support Material =

Revision as of 13:07, 10 May 2013

Projections and Datum Transformations

Brief introduction to projections and spatial transformations in GRASS

A GRASS location is referenced with a single projection and coordinate system (or unreferenced as XY location). When creating a new location from an existing raster or vector map using the tools available from the startup screen or the map import commands, projection and coordinate system are defined. To change the projection of maps, a new location has to be created and the desired maps have to be reprojected into it from the source location as explained below.

Read on in projectionintro...

Creation of a GRASS location

Support Material

  • Ready to use .PRJ files (in the usual WKT format) as used by recent versions of ESRI ArcView: download

See also

Google Map Projection