# Miller Cylindrical

Name | Miller Cylindrical
EPSG Code |
GeoTIFF Code | CT_MillerCylindrical (20)
OGC WKT Name | Miller_Cylindrical
Supported By | GeoTIFF, PROJ.4, OGC WKT

### Projection Parameters

Name | EPSG # | GeoTIFF ID | OGC WKT | Units | Notes
--- | --- | --- | --- | --- | ---
Latitude of projection center | 1 | ProjCenterLat | latitude_of_center | Angular | This is normally zero and optional in GeoTIFF.
Longitude of projection center | 2 | ProjCenterLong | longitude_of_center | Angular |
False Easting | 6 | FalseEasting | false_easting | Linear |
False Northing | 7 | FalseNorthing | false_northing | Linear |

### Notes

The spec indicates that there should only be a center longitude, not a center latitude. Intergraph includes a latitude, so I have included it here, but if not specified it should be taken as zero.

Intergraph uses NatOriginLat and NatOriginLong instead of ProjCenterLat/Long.

Intergraph also supplies a scale at the origin, which isn't in the spec. I am ignoring this for now, but eventually a pass should be made adding scale as an option for any projection it can be made to work for as per Peter Laskowski's suggestion.

### PROJ.4 Organization

      +proj=mill  +lat_0=Latitude at projection center
                  +lon_0=Longitude at projection center
                  +x_0=False Easting
                  +y_0=False Northing