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• Raster Chart material
How to view different charts
Select a chart from catalogue
To select ARCS format raster chart onto the display by using ARCS catalogue, proceed as follows:
1. From Control Panel press Chart Plan pushbutton.
2. Select Catalogue command from the menu.
3. From the catalogue window activate desired chart to open. For more information, see "ARCS
Catalog" on page 166.
4. Press button
Open.
Browsing around your charts
Viewing ARCS charts from different places and using different scales is very easy. Basic tools to go around are
push buttons ZOOM IN, ZOOM OUT, SET CHART CENTER, SHIP OFF CENTER and TM/CU RESET.
You can use SET CHART CENTER to look ahead any other place than your own ship position. Pressing it
automatically deactivates true motion reset function. When true motion reset is deactivated you have on upper right
hand part of the display either indication Ship out of dsp or TM RESET OFF depending of the view.
You can enter numerical values for center of chart to display. Press DISPLAY MODE push button and select
Center… from the menu, a Chart Center dialog box appears:
Enter desired values for center of chart to be displayed.
If you want immediately back to your own ship position, push TM/CU RESET.
ZOOM IN and ZOOM OUT are used to change scale of chart. ARCS system allows 2* overscaling and ½*
underscaling. The system has a logical way to automatically select next larger or smaller scale chart automatically.
The system has an indication of Larger scale available, if there is larger scale chart available at your current
viewing position. If the system uses natural scale of an ARCS chart, the scale indication is in black color like
1:100000. If the system uses underscale or overscale image of an ARCS chart, the scale indication is in red colour
like 1:20000. The system has also indication UNDERSCALE or OVERSCALE.
The system has indication of Same scale available, if you have a chart with the same scale and overlapping with
displayed ARCS chart. When you are reaching to edge of chart and you have indication Same scale available you
can switch an other chart with the same scale to the display by pressing SELECT NEXT push button from the
Control Panel. An overlapping chart with same scale will be opened.
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