Is this a map with a planar projection?
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: projection name from following list:
Albers Conical Equal Area
Azimuthal Equidistant
Equidistant Conic
Equirectangular
General Vertical Near-sided Projection
Gnomonic
Lambert Azimuthal Equal Area
Lambert Conformal Conic
Mercator
Modified Stereographic for Alaska
Miller Cylindrical
Oblique Mercator
Orthographic
Polar Stereographic
Polyconic
Robinson
Sinusoidal
Space Oblique Mercator
Stereographic
Transverse Mercator
van der Grinten
other projection
Projection parameters
Projection parameters need to be specified. These vary from projection
to projection, and as the jargon is daunting, this is not a fit topic
for a document purporting to explain metadata in plain language.
Geodetic Model:
Horizontal_Datum_Name: NAD27 or NAD83
Ellipsoid_Name: Clarke 1866, for example
Semi-major_Axis: radius of the earth in kilometers
Denominator_of_Flattening_Ratio: number, about 300