Tips for Arc users: Difference between revisions
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=== Vector import/export commands === | === Vector import/export commands === | ||
* [http://grass.ibiblio.org/grass61/manuals/html61_user/v.in.ogr.html v.in.ogr] - Convert [http://www.gdal.org/ogr OGR] | * [http://grass.ibiblio.org/grass61/manuals/html61_user/v.in.ogr.html v.in.ogr] - Convert [http://www.gdal.org/ogr OGR] supported vector formats to GRASS vector format. | ||
* [http://grass.ibiblio.org/grass61/manuals/html61_user/v.out.ogr.html v.out.ogr] - Convert from the GRASS vector format to one of the supported OGR vector formats. | * [http://grass.ibiblio.org/grass61/manuals/html61_user/v.out.ogr.html v.out.ogr] - Convert from the GRASS vector format to one of the supported OGR vector formats. | ||
* [http://grass.ibiblio.org/grass61/manuals/html61_user/v.in.e00.html v.in.e00] - Import a E00 coverage into a GRASS vector map. | * [http://grass.ibiblio.org/grass61/manuals/html61_user/v.in.e00.html v.in.e00] - Import a E00 coverage into a GRASS vector map. | ||
== See also == | == See also == | ||
Revision as of 05:03, 19 June 2006
Working with your ArcGIS data
Importing ArcGIS Data
Grass provides convertors for importing ESRI shapefiles, e00 files, and many other GIS formats as well. The key Grass programs for importing vector formats are v.in.ogr (for ESRI shapefiles, MapInfo files, SDTS, TIGER, etc.) and v.in.e00 for e00 format.
Example 1: Import of Shapefiles into Grass
v.in.ogr dsn=/home/data/navigation_files output=Tracklines layer=Ship_Tracklines
v.in.ogr dsn=Ship_Tracklines.shp output=Tracklines layer=Ship_Tracklines
This is the syntax for v.in.ogr in its most basic form. The dsn parameter corresponds to the directory path of the vector you are trying to import. You can enter a full or relative path. The output paramter, aptly enough, is the name of your output Grass vector. The layer parameter is the name of the input vector, be it shapefile, MapInfo file, or what have you.
Raster import/export commands
- r.in.arc - Convert an ESRI ARC/INFO ascii raster file (GRID) into a GRASS (binary) raster map layer.
- r.out.arc - Converts a GRASS raster map layer into an ESRI ARCGRID file.
- r.out.gdal - Exports GRASS raster data into various formats.
Vector import/export commands
- v.out.ogr - Convert from the GRASS vector format to one of the supported OGR vector formats.
- v.in.e00 - Import a E00 coverage into a GRASS vector map.