JRC JMR-9230-S3 - Enlarging;Reducing a Chart with the Zoom Function; Enlarging;Reducing with the [ZOOM IN];[ZOOM OUT] Key on the Trackball Operation Unit (S-57;C-MAP Only); Enlarging;Reducing with the Zoom Slider (S-57;C-MAP Only)

Section 8 Functions of the ECDIS (Option) 8-14
8.4.2 Enlarging/reducing a chart with the Zoom
function
8.4.2.1 Enlarging/reducing with the [ZOOM IN]/[ZOOM OUT]
key on the trackball operation unit (S-57/C-MAP only)
1
Each time the [ZOOM IN] key is pressed, the chart is enlarged according to the range
or scale that has been set up.
Each time the [ZOOM OUT] key is pressed, the chart is reduced according to the range
or scale that has been set up.
For the details of switching between range and scale, refer to "8.4.3 Switching between scale
and range (S-57/C-MAP only)".
8.4.2.2 Enlarging/reducing with the zoom slider (S-57/C-MAP
only)
1
When the slider handle is clicked upward, display is enlarged. When it is clicked
downward, display is reduced.
Each time the [In] (zoom in) button is clicked on, the chart is enlarged according to the
range or scale that has been set up.
Each time the [Out] (zoom out) button is clicked on, the chart is reduced according to
the range or scale that has been set up.
[In] button
Slider
[Out] button
[ZOOM IN]/[ZOOM OUT] key