Azimuthal Equidistant

Name Azimuthal Equidistant
GeoTIFF Code CT_AzimuthalEquidistant (12)
OGC WKT Name Azimuthal_Equidistant
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
Longitude of projection center 2 ProjCenterLong longitude_of_center Angular
False Easting 6 FalseEasting false_easting Linear
False Northing 7 FalseNorthing false_northing Linear


Intergraph uses NatOriginLat and NatOriginLong instead of ProjCenterLat/Long but I have organized to match discussions on geotiff-l, and PCI/Erdas practise.

I also can't get projection results to match between PROJ.4 and PCI (GCTP) as mentioned in Random Issues.

PROJ.4 Organization

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