EPSG systems

EPSG:3119 Douala 1948 / AEF west

Projected system (Transverse Mercator) in use: Cameroon - coastal area. The full definition below, and conversion in one click.

System record
CodeEPSG:3119
NameDouala 1948 / AEF west
TypeProjected system — Transverse Mercator
Area of use Cameroon - coastal area
Bounds W 8,45° · S 2,16° · E 10,40° · N 4,99°
Countries Cameroon
DatumDouala 1948
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Base geographic system EPSG:4192 — Douala 1948
Unit metre (E east, N north)
Transformation to WGS 84 Douala 1948 to WGS 84 (1) (EPSG:15873) — accuracy 10 m
ScopeTopographic mapping (medium and small scale).

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin10.5degree
Scale factor at natural origin0.999unity
False easting1000000metre
False northing1000000metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=10.5 +k=0.999 +x_0=1000000 +y_0=1000000 +ellps=intl +units=m +towgs84=-206.1,-174.7,-87.7 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:3119.

WKT (ESRI format, the .prj content)

PROJCS["Douala_1948_AEF_West",GEOGCS["GCS_Douala_1948",DATUM["D_Douala_1948",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",10.5],PARAMETER["Scale_Factor",0.999],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Cameroon

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.