EPSG Tables
The .csv files in this directory are an extract of tables from the EPSG projection database in CSV (comma separated value) format. These same files come with the source distribution in the libgeotiff/csv directory. Information and source to extract these tables from the EPSG database can be found in the source distribution libgeotiff/csv/odbc2csv directory.
Detailed information on the EPSG database can be found at:
http://www.petroconsultants.com/products/geodetic.htm
The current version of the EPSG database dumped is 6.5.
All EPSG tables have been dumped to csv. Unlike earlier dumps (4.3) these are intended to be "true" csv files. In particular quotes within quoted strings are doubled to escape them, rather than using backslash quoting. Newlines may appear within quoted field values (as real raw newline characters). All table names are converted to lower case, and spaces replaced with underscores to make them more easily worked with.
In addition to the EPSG tables dumped to csv, the following additional items are present:
stateplane.csv:my own effort to related "USGS" state plane numbers with their
currently preferred EPSG coordinate reference system
counterpart.
pcs.csv:An attempt to collect most information about a PCS, including the
projection parameters into one fast access file. gcs.csv:An attempt to collect most information about a GCS, including
the WGS84 shift parameters (if there is only one path in EPSG). projop_wparm.csv:Projection operations with projection parameters.
Essentially the coordinate_operation.csv table with the parameters
from coordinate_operation_parameter_values.csv appended to each
record.
build_pcs.py:a python script to build pcs.csv and gcs.csv from the other
EPSG files.
csv_tools.py:supportting python functions for build_pcs.py. csv.txt:A definition of the csv format.
Libgeotiff uses the following tables. The rest are present for completeness.
pcs.csv
gcs.csv
ellipsoid.csv
prime_meridian.csv
unit_of_measure.csv
datum.csv
projop_wparm.csv