Table of Contents
Advertisement
(2) Transforming the datum
You can convert the geodetic datum of a position or the own ship's position to the WGS-84 system.
1) In the normal menu
Select [MENU] - [(6) Chart] - [(4) ARCS] - [(3) Datum Transformation] in that order.
In the Table Editing menu, Graphic Editing menu
Select [MENU] - [(5) Chart] - [(4) ARCS] - [(3) Datum Transformation] in that order.
In the User Chart Editing menu
Select [MENU] - [(4) Chart] - [(4) ARCS] - [(3) Datum Transformation] in that order.
The "Datum Transformation" panel opens.
2) Enter the reference position using one of the following methods:
• Enter the position into the value entry boxes.
• Left-click the [Ship Position] to enter the own ship's position.
• Left-click the [by Cursor] and left-click the cursor at the position you want. Then, the position
is entered.
3) Left-click the "Geodetic Datum From" drop-down list, then select the geodetic system of the
conversion source from the list.
The geodetic system will be converted, and the position after shifting and offset value will be
displayed.
4) After confirming the position after shifting and the offset displayed in the [Chart Shift] box,
left-click the [OK] to close the panel.
The chart will move by the offset value, and the offset display section of the chart will be
displayed in blue. "Chart" will be displayed in the message display area of the screen.
3-83
3 Basic Operation of ECDIS
ECDIS
Advertisement
Table of Contents
