Difference between revisions of "Map Reprojection"

From GRASS-Wiki
Jump to: navigation, search
 
Line 1: Line 1:
 
'''Q:''' How to change map/image projections, datums, etc in GRASS GIS?
 
'''Q:''' How to change map/image projections, datums, etc in GRASS GIS?
 +
 +
'''A:'''
  
 
# create an import location in the projection and datum of the map/image you want to import
 
# create an import location in the projection and datum of the map/image you want to import

Revision as of 01:01, 19 May 2006

Q: How to change map/image projections, datums, etc in GRASS GIS?

A:

  1. create an import location in the projection and datum of the map/image you want to import
  2. import the map/image into the location
  3. create a destination location in the projection and datum you want to reproject the map/image into
  4. working in the destination location, use r.proj or v.proj (depending on whether the map/image is raster or vector) to reproject the map/image from the import location to the destination location.