3 Basic Operation of ECDIS 3-60
3.5 Zooming In/Out the Chart
(S-57/C-MAP Only)
The chart can be zoomed in or out by the following methods:
●Zoom area function using the rubber band ([Zoom Area])
●Zoom in/out ([Range +/-]/[Zoom In]/[Zoom Out]/Menu/ context menu)
●Range selection (Range drop-down list)
●Scale selection (Scale drop-down list)
3.5.1 Zooming Area Using the Rubber Band
(S-57/C-MAP Only)
You can enlarge the area surrounded by the rubber band full in the display. You can operate using the
operation panel, display panel , or menu.
1) Select the function by performing one of the following methods:
On the display panel
Left-click the [Zoom Area] button.
• Right-click on the chart, then select [Zoom Area] from the context menu.
The cross cursor changes to the lens cursor.
2) Rotate the trackball to move the cursor to the top left of the area “A” you want to enlarge, and
left-click there.
3) Rotate the trackball to move the cursor to the bottom right of the area “B” you want to enlarge,
and left-click there.
The rubber band surrounds the specified area to be enlarged.
• After enlarged, the lens cursor returns to the cross cursor.
[Zooming area using the rubber band]
Switching charts:
Usually, charts with different scales are displayed in the same area.
Due to the zoom in/zoom out functions, charts with a matching scale are selected and displayed.
When a displayable scale range is assigned to an original scale of a chart and when this original scale
is beyond the range, the chart will not be displayed unless there are other displayable charts.
This equipment shows in background a chart that looks like a world map as a reference. When there is
not a chart which can be displayed, a background chart is displayed.
Selected area
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