Data format
Data format
Section titled “Data format”Vector data format:
GeoPackage v1.4.0 or later and/or GeoParquet v1.0.0 or later.
Raster data (or other formats) may be produced for user convenience, but no particular format is specified, due to the lack of wide acceptance of a raster data format that supports attribute tables.
Vector data is mandatory for classification output.
Coordinate system
Section titled “Coordinate system”Any current official projection may be used:
| Projection name | Acronym | EPSG Code | Typical usage |
|---|---|---|---|
| New Zealand Transverse Mercator 2000 | NZTM2000 | 2193 |
Default national coordinate system for mainland New Zealand. |
| NZGD Meridional Circuits | – | 2105-2132 |
Used for regional extracts or offshore islands (e.g. Auckland Islands, Chatham Islands). |
| New Zealand Continental Shelf Lambert Conformal 2000 | NZCS2000 | 17964 |
Used for offshore and continental-shelf mapping where scale preservation over large areas is important. |