Sperry Marine Visionmaster FT ECDIS, User Manual

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Charts ECDIS User Guide
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Legend Select
The Select folder displays the names of all the
charts currently displayed on the screen.
From this folder you can choose the chart
whose legend information will be displayed in
the Detail folder, see Legend Detail.
The available charts are listed in Chart engine
(C-MAP or SevenCs) folders.
The set of charts displayed in the Select folder
will automatically update itself to match the cells
most recently displayed on the screen.
To view available charts click on the + button for
each chart database.
All the listed charts include a numerical value in
brackets. This value is the ratio of the current
display scale to the chart’s compilation scale, as
shown on the
Detail tab. For example, if a chart
has a compilation scale of 74500 and the
current range scale is 1:100,000, the ratio of
these values is 74,500 divided by 100,000 equals x0.7, with the value
rounded off to the nearest decimal point.
Charts displayed in bold are currently under ownship's position, these
charts will match the charts ticked in the Charts button on the upper
toolbar. Charts not shown in bold are covering a portion of the display not
under ownship’s position.
Show Chart Coverage
The Select tab includes the option to display coverage of a selected chart
on the screen. To show chart coverage select a chart from the list and tick
the
Highlight Coverage of Selection check box. The chart outline is
shown and the chart area filled in.