Geographic coordinates (not a projection). Earth model: ellipsoid or sphereDefining the MAPUNITS:
MapUnits "long/lat" ! Standard name. Synonyms: "lon",
! "lat", "lat/long" or "geo"
Other parameters: NoneNote: If a bounds is defined, it must be in geographic coordinates (i.e. LONG1, LAT1, LONG2, LAT2) as there is no projection to convert from or to.
In EASI, LONG/LAT coordinates may be entered in a relatively free-format. All the following examples will work. (Each example would be evaluated to produce the same value of -110.258333 degrees longitude):
TrueOriginLongitude "110d 15' 30.0 W" ! Note the symbol for seconds (") is
! omitted as it would be evaluated
! by EASI as the end of the string
TrueOriginLongitude "110d15'30.0W"
TrueOriginLongitude "110 15.5' W"
TrueOriginLongitude "110.258333 W"
TrueOriginLongitude "-110.258333"
TrueOriginLongitude " 110 15 30 w"
TrueOriginLongitude "-110,15,30"
TrueOriginLongitude " w 15 ' 30 110 d "
From the above examples, it can be seen that:
1. Alpha characters may be upper and/or lower-case.
2. Fields may be separated by one (or more) spaces and/or commas.
3. The spacing may vary as long as fields of the same type do
not abut. For example "w15'30 110d" is valid as the following
fields can be parsed:
a. the hemisphere (an alpha string)
b. a value of 15 (a numeric string)
c. the Minutes identifier (') (a character field). This
identifies the preceding value as 15 Minutes.
d. a value of 30 (a numeric string). As no field identifier
follows, this is assumed to be seconds, as the preceding
field was a Minutes value.
e. a space as a field separator
f. a value of 110 (a numeric string)
g. the Degrees identifier (d) (an alpha string). This
identifies the preceding value as 110 degrees.