Search notes:
ESRI shape files
An
ESRI shape file
is a commonly used file format for storing vector geospatial data.
A shape file actually consists of three files (compare
gis.stackexchange.com
):
filename.shp
: the coordinates.
filename.dbf
: a
dbase
file with information about a feature (for example road names).
filename.shx
: an index file that links the .shp with the .dbf
The format was developped by
ESRI
.
Also seen were
filename.prj
files which indicate the data's projection.
QGIS
In
QGIS
, a shape file is opened by usenig the
add vector layer
tool-button on the left side of the application.
R
In
R
, the package
rgdal's
function
readOGR()
can be used to read shape files.
The
sp
and
maptools
package.
See also
geodata
Links
ESRI Shapefile Technical Description
- An ESRI White Paper—July 1998
Index