I have made the following changes to the AIS
page. AIS | Official OpenCPN Homepage
Note: The main Options > Ships > AIS
Targets page also needs to be updated.
AIS Operating Controls
The Menubar-AIS and Toolbar-AIS provide useful operating controls of key AIS parameters which may need to be adjusted during use.
[Image of Menubar-AIS]
Menubar > AIS dropdown
(To turn on the Menubar use Options > User Interface > Show Menubar)
- Show AIS Targets
- Hide Moored AIS Targets
- Attenuate Less critical AIS Targets
- Show AIS Target Tracks
- Show CPA Alert Dialogs
- Sound CPA Alarms
These controls appear to work together and in sync, as expected:
Menubar AIS: Show AIS Targets = Options > Ships > AIS Targets > Display: Show AIS - NOTE not available. See below
Menubar AIS: Hide Moored AIS Targets = Options > Ships > AIS Targets > Display: Suppress Anchored/Moored Targets...
Menubar AIS: Attenuate Less.. [Exception, see below]
Menubar AIS: Show AIS Target tracks = Options > Ships > AIS Targets > Display: Show Target Tracks Length (min)
Menubar AIS: Show CPA Alerts = Options > Ships > AIS Targets > CPA/TCPA Alerts: Show CPA/TCPA Alert Dialogs
Menubar AIS: Sound CPA Alarms = Options > Ships > AIS Targets > CPA/TCPA Alerts: Play sound to CPA/TCPA Alerts...
Options > Ships > AIS Targets > Display: "Allow attenuation of less critical targets..." must be checked for
Menubar AIS: "Attenuate Less Critical AIS Targets" to be un-greyed and available.
Also when unavailable, the Toolbar AIS Icon click rotation drops the selection for "Attenuate all AIS targets".
[Image of Toolbar-AIS]
Toolbar AIS Icon Message
(Clickable Rotation to change settings. Read the pause message.)
- Attenuate Less Critical AIS Targets
- Hide AIS Targets
- Show all AIS Targets
- Attenuate all AIS Targets (dropped in rotation if unchecked under Options > Ships > AIS Targets)
After Suppress Anchored/Moored
Allow attenuation of less critical targets if more than ...targets [number]
If checked AND selected under Menubar-AIS or Toolbar-AIS then at least [number] of targets will be displayed normally. If unchecked then all AIS targets are displayed normally and this option is greyed out and unavailable.
[Image of Attenuated AIS]
Attenuation of Less Critical Targets will declutter the display without removing AIS targets from the display, by reducing the size of less critical targets. Less critical targets are determined with a weighted rules filter. The important targets remain unchanged, including display of the ships name. Less critical targets are reduced in size and do not display ship name, to reduce clutter on the chart.