EPSG:29381 Schwarzeck / Lo22/21
Système projeté (Transverse Mercator (South Orientated)) en usage : Namibia - 20°E to 22°E. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:29381 |
|---|---|
| Nom | Schwarzeck / Lo22/21 |
| Type | Système projeté — Transverse Mercator (South Orientated) |
| Zone d'usage |
Namibia - 20°E to 22°E Namibia - between 20°E and 22°E. |
| Emprise | O 19,99° · S -22,01° · E 22,00° · N -17,85° |
| Pays | Namibie |
| Datum | Schwarzeck |
| Ellipsoïde | Bessel Namibia (GLM) a = 6377483.865280419 m · 1/f = 299.1528128 |
| Système géographique de base | EPSG:4293 — Schwarzeck |
| Unité | German legal metre (Y west, X south) |
| Transformation vers WGS 84 | Schwarzeck to WGS 84 (1) (EPSG:1226) — précision 35 m |
| Usage | Cadastre, engineering survey, topographic mapping (large and medium scale). |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of natural origin | -22 | degree |
| Longitude of natural origin | 21 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 0 | German legal metre |
| False northing | 0 | German legal metre |
Définition proj4
+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=21 +k=1 +x_0=0 +y_0=0 +ellps=bess_nam +to_meter=1.0000135965 +towgs84=616,97,-251 +no_defsÀ coller dans QGIS, proj4js, PostGIS (spatial_ref_sys) ou GDAL. +towgs84 porte la transformation EPSG vers WGS 84 ; le code officiel reste EPSG:29381.
WKT (format ESRI, contenu du .prj)
PROJCS["Schwarzeck_Lo22_21",GEOGCS["GCS_Schwarzeck",DATUM["D_Schwarzeck",SPHEROID["Bessel_Namibia_GLM",6377483.86528042,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",-22.0],PARAMETER["central_meridian",21.0],PARAMETER["scale_factor",1.0],PARAMETER["false_easting",0.0],PARAMETER["false_northing",0.0],UNIT["German legal metre",1.0000135965]]Autres systèmes — Namibie
- EPSG:2046Hartebeesthoek94 / Lo15
- EPSG:4293Schwarzeck
- EPSG:22275Cape / Lo15
- EPSG:29333Schwarzeck / UTM zone 33S
- EPSG:29371Schwarzeck / Lo22/11
- EPSG:29373Schwarzeck / Lo22/13
- EPSG:29375Schwarzeck / Lo22/15
- EPSG:29377Schwarzeck / Lo22/17
- EPSG:29379Schwarzeck / Lo22/19
- EPSG:29383Schwarzeck / Lo22/23
- EPSG:29385Schwarzeck / Lo22/25
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.