Wellenvogel AvNav

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AvNav Main Page

Overview

In the page main area there is the list of charts available on the server (files at /home/pi/avnav/data/charts on raspi, on android charts in the choosen directory).

After first installation you will see some/one online demo charts. They can only be used when connected to internet, of course.

You can upload further charts via the files/download page or copy them directly into the correct directory (raspberry) or read them from a selected directory (android).

AvNav can read charts in the gemf format (preferred), since version 202003xx also in mbtiles format. You can also add online chart sources using an xml definition. For details refer to chart formats.

O-Charts need to be uploaded via the  o-charts Plugin or the ochartsng Plugin(reachable via the button).

If you have charts installed in SignalK, you will also see them here.

Next to each chart the button will open the overlay editor for this chart.

By clicking on a chart entry you will be taken to the navigation page with the selected chart set.

Special Functions

Man over Board

Visible on all pages - but only if we are in connected mode - button with green border and a valid GPS position is available.
By clicking on the MOB button the current position will turn into a dedicated waypoint named "MOB". Any active routing will be stopped and the route to the MOB waypoint will be activated. The display will switch to the navigation page with the last selected chart. The chart will be centered to the boat and a fixed zoom will be applied (can be preset in settings). Additionally a MOB alarm will be triggered. The alarm can be stopped. The MOB routing remains active until you click the MOB button again.

If there was no selected chart before the display will go to the dashboard .

Night Mode

By clicking the button you will activate the night mode. You can fine tune the dim factors in the settings.

Connected/ Not Connected

With thebutton you control how the route data is synced with the server. If it is active (green border) you can modify data on the server. This includes all changes on routing data (waypoints, start routing, stop routing, change route)- they will be synced with the server immediately. This way they will become visible on all connected displays.

If it is switched off, all routing changes will only be stored locally. In this mode you can e.g. try out a new route without disturbing the helms man or the auto pilot. If you connect later on, data from server will always take precedence. To keep your changes you need to store them e.g. in a new route with different name. If you are activating a route that only has been stored locally (and you are connected again) this route now will be synced to the server. At the files/download page the symbol next to the routes indicates if they are synced with the server. Also refer to the description of the route editor.

When in disconnected mode many functions at the files/download are disabled - so you typically cannot upload data or modify data on the server.

Since 20240520 the title bar shows a small red icon if you are in disconnected mode. By clicking this icon you can bring up a dialog to end the disconnected mode.

Anchor Watch

On the dashboard page you can activate an anchor watch.

Split Mode

Since version 20220819 AvNav can split it's main window. In this mode there are two instances of AvNav running in the same browser.

Both instances are mainly independent from each other and can be operated separately.
They share most of the AvNav settings.
Only a couple of settings will be handled separately for each of the instances (left/right). On the settings page they will be marked with a *.
If you change settings (except the ones with a *) the changes will become visible on the other instance immediately.

The following settings are specific per side:

Name	Meaning
connectedMode	The "plug button" - if it is switched of the instance cannot make any changes at the server. You can test a route e.g. in this mode without influencing the server.
layoutName	The layout to be used
remoteChannelName	The name for the remote control channel
remoteChannelRead	Read from the remote control channel
remoteChannelWrite	Write to the remote control channel

If you would like to have other/more settings to be specific per side you can create a file splitkeys.json in the user directory. The default file can be found at GitHub. The names for the keys must be taken from the source code in the properties section. All properties you list in the splitkeys.json will afterwards be handled separately per side.
The settings that are specific per side will not be kept for the normal display when leaving the split mode (but will be kept for the next split mode entering).

Alarms will only be handled by the right instance.

Using the Split Button on each instance you can leave the split mode.

You can drag and drop the slider to change the window split.

Since 20240616 you can force AvNav to start in the same mode (split/unsplit) like it was left by enabling Settings->Layout->"start with last split mode".