10.3.2
Controlling visibility of true symbols from manual updates
Chart features added by manual updates behave exactly as any other chart feature. Their visibility follows common
rules. For more information, see the paragraph "8.10.4 "Controlling visible chart features".
10.4
Controlling Chart Viewing Dates of Manual
Updates
10.4.1
Setting current date for viewing
Manual updates operate like any other S57 chart which contains updates and other set chart viewing dates features.
When you accept manual updates as permanent, the system sets Display Until of manual updates as current date of
the system. To set Approve Until as current date of the system, you must open the Set chart viewing dates window
(in the Chart menu) and perform Approve Until. For how to set current date, see paragraph 8.12 "Chart Viewing
Dates and Seasonal Features of Vector charts (S57)". Recommended settings in the Chart viewing dates window
are:
• Sync Manual Update Dates as ON position
• All SENCs ON position
See the example below where Displ. until and Approv. until are set as the system current date.
10. Manual Updates
10-3