EPSG:4779 New Beijing / 3-degree Gauss-Kruger zone 43
Système projeté (Transverse Mercator) en usage : China - 127.5°E to 130.5°E. La définition complète ci-dessous, et la conversion en un clic.
EPSG ne publie pas de transformation simple vers WGS 84 pour ce datum : la conversion se fait sur l'ellipsoïde seul et peut s'écarter de plusieurs dizaines de mètres.
| Code | EPSG:4779 |
|---|---|
| Nom | New Beijing / 3-degree Gauss-Kruger zone 43 |
| Type | Système projeté — Transverse Mercator |
| Zone d'usage |
China - 127.5°E to 130.5°E China - between 127°30'E and 130°30'E. |
| Emprise | O 127,50° · S 41,37° · E 130,50° · N 50,25° |
| Pays | Chine |
| Datum | New Beijing |
| Ellipsoïde | Krassowsky 1940 a = 6378245 m · 1/f = 298.3 |
| Système géographique de base | EPSG:4555 — New Beijing |
| Unité | metre (X north, Y east) |
| Transformation vers WGS 84 | Aucune transformation simple publiée (ellipsoïde seul) |
| Usage | Cadastre, engineering survey, topographic mapping (large scale). |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 129 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 43500000 | metre |
| False northing | 0 | metre |
Définition proj4
+proj=tmerc +lat_0=0 +lon_0=129 +k=1 +x_0=43500000 +y_0=0 +ellps=krass +units=m +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:4779.
WKT (format ESRI, contenu du .prj)
PROJCS["New_Beijing_3_Degree_Gauss_Kruger_Zone_43",GEOGCS["GCS_New_Beijing",DATUM["D_New_Beijing",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",43500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",129.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Autres systèmes — Chine
- EPSG:4770New Beijing / 3-degree Gauss-Kruger zone 34
- EPSG:4771New Beijing / 3-degree Gauss-Kruger zone 35
- EPSG:4772New Beijing / 3-degree Gauss-Kruger zone 36
- EPSG:4773New Beijing / 3-degree Gauss-Kruger zone 37
- EPSG:4774New Beijing / 3-degree Gauss-Kruger zone 38
- EPSG:4775New Beijing / 3-degree Gauss-Kruger zone 39
- EPSG:4776New Beijing / 3-degree Gauss-Kruger zone 40
- EPSG:4777New Beijing / 3-degree Gauss-Kruger zone 41
- EPSG:4778New Beijing / 3-degree Gauss-Kruger zone 42
- EPSG:4780New Beijing / 3-degree Gauss-Kruger zone 44
- EPSG:4781New Beijing / 3-degree Gauss-Kruger zone 45
- EPSG:4782New Beijing / 3-degree Gauss-Kruger CM 75E
- EPSG:4783New Beijing / 3-degree Gauss-Kruger CM 78E
- EPSG:4784New Beijing / 3-degree Gauss-Kruger CM 81E
- EPSG:4785New Beijing / 3-degree Gauss-Kruger CM 84E
- EPSG:4786New Beijing / 3-degree Gauss-Kruger CM 87E
- EPSG:4787New Beijing / 3-degree Gauss-Kruger CM 90E
- EPSG:4788New Beijing / 3-degree Gauss-Kruger CM 93E
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.