Geography Reference
In-Depth Information
6.3
Conversion Options
So, you decide to convert some or all your data to a new format. The
next question is, what tools are available to do the job? Fortunately, in
the OSGIS world, conversion between formats is not only commonplace
but easy as well.
If you choose to migrate all your data to PostGIS or GRASS, it's not a
problem. Both provide the routines to import your data and export it
should the need arise.
GRASS Conversion
GRASS provides both vector and raster import/export functions for a
nice range of formats. To give you an idea of the capabilities, here is a
partial list of the import commands and formats supported by GRASS:
r.in.arc
Converts an ESRI ARC/INFO ASCII raster file (GRID) into a (binary)
raster map layer
r.in.ascii
Converts ASCII raster file to binary raster map layer
r.in.aster
Imports, georeferences, and rectifies an ASTER image
r.in.gdal
Imports a GDAL-supported raster file into a binary raster map
layer
r.in.srtm
Imports Shuttle Radar Topography Mission (SRTM) .
hgt
files into
GRASS
r.in.wms
Downloads and imports data from WMS servers
v.in.ascii
Creates a vector map from ASCII points file or ASCII vector file
v.in.db
Creates new vector map (point layer) from database table contain-
ing coordinates
v.in.dxf
Converts AutoCad DXF files to GRASS format
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