Bug
The Data Interoperability Extension (and Feature Manipulation Engine (FME)) has an incorrect spheroid definition for the projected coordinate system 'British National Grid'.
| Bug-ID-Nummer | NIM059136 |
|---|---|
| Eingereicht | July 19, 2010 |
| Zuletzt geändert | June 5, 2024 |
| Gilt für | ArcGIS for Desktop |
| Gefunden in Version | 10.0 |
| Behoben in Version | 10.3.0 |
| Status | Fixed |
Workaround
Workaround provided by Safe Software: FME uses two methods to map coordinate systems. The first is to consult the tables in the Data Interoperability Extension\Reproject\Exceptions folder. If no explicit mapping is found then FME attempts to parse the Well Known Text (WKT) to find a match. In your case, there is no explicit mapping and it is the second method that is failing. The quickest fix is to add an explicit mapping to the Exception folder. Create a new file named MyExceptions.db in the Exceptions folder and add the following line: ESRI|BritishNatGrid|PROJCS["British_National_Grid",GEOGCS["GCS_OSGB_1936",DATUM["D_OSGB_1936",SPHEROID["Airy_1830",6377563.396,299.3249646]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",400000.0],PARAMETER["False_Northing",-100000.0],PARAMETER["Central_Meridian",-2.0],PARAMETER["Scale_Factor",0.9996012717],PARAMETER["Latitude_Of_Origin",49.0],UNIT["Meter",1.0]] This line will map the Shape file coordinate system to FME's BritishNatGrid. The Geography Markup Language (GML) is produced with its coordinate system set to the EPSG equivalent: EPSG:27700.Schritte zur Reproduzierung
Bug-ID: NIM059136
Software:
- ArcGIS for Desktop
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