Raytheon Pathfinder ECDIS Operator's Manual page 91

4, Standard Parallel / Standard Meridian
Based on the projection method selected, either the Standard Parallel or the
Standard Meridian label will be displayed next to the input box for appropriate
latitude or longitude respectfully.
The Standard Parallel is the latitude that the paper chart manufacturer has
selected as the center parallel for purposes of projection. The latitude entered
for the Standard Parallel field must be obtained directly from the paper chart
being described.
The Standard Meridian is the longitude that the paper chart manufacturer
has selected as the center meridian for purpose of projection. The longitude
entered for Standard Meridian field must be obtained directly from the paper
chart being described.
5, Datum
The Datum is the horizontal reference datum that was used for the creation of
the paper chart. The ECDIS support all datums in IHO S−60. The Datum
selected must be obtained directly from the paper chart being described. If the
datum of the paper chart is not available in the list of ECDIS supported
datums, then Non should be selected for the datum, and an offset entered as
described in section WGS−84 Offsets to Chart.
6, Projection
Projection is the projection method used by the chart authority or chart
manufacturer during the creation of the paper chart. The ECDIS only supports
Mercator or Universal Transverse Mercator (UTM) projection methods for
purposes of chart digitization. The appropriate Projection button must be
selected based on the projection method used to create the paper chart being
described.
7, Scale
The Select field contains the scale of the paper chart being described. The
value entered in this field must be taken directly from the paper chart. The
scale value entered will be displayed as 'Property' of the Object when a query
is performed on a digitized chart object.
Edition: 30.MAR.2007
ECDIS
Operator Manual
4−19
R
Raytheon Anschütz GmbH
Germany
3655DOC020102