Entering a line

1.Operate the trackball to place the cursor on position desired for starting point of line.

2.Press []

3.Operate the trackball to place the cursor on the position desired for intermediate (or end) point.

4.Press []

5.To enter another point for the line, repeat steps 3 and 4.

Starting a new line

To add a point to the last-entered line, you simply designate the loca- tion with the cursor and then press []. To enter a new line, start at step 1 above.

Changing line color

Lines and marks share the same color. If you want to change line color, therefore, press the [MARK COLOR] key and then select color desired.

Deleting lines

Deleting individual points on a line

Operate the trackball to set cursor intersection on a triangle mark of the line you want to delete and then press the [CLR] key.

Deleting all lines

1. Press [MENU], [7] and [3] to display the DELETE MARK screen.

7-3 DELETE MARK

TRACK MARKS USED : 3210

MAX : 4000

ARE YOU SURE ? IF YES PRESS ENT.

Figure 3-7 DELETE MARK menu

2. Press the [ENT] key.

3-6

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Furuno GD-3300, GP-3300 manual Entering a line, Changing line color, Deleting lines