AvNav - navigation in the browser

[wellenvogel02]

Ok, so you just added history items from the selection.
But as you mentioned you missed some parameters?
How did you try to access those? Have they been available in the SignalK data browser?

For the formatters - as I said - very few lines of js code into your user.js (you can edit this directly in the app).
See the example at the description.
The first 4 lines are just there to be robust against strange loading sequences (your code before the plugin itself). The pure formatter is just one line...

    let pn="avnavHistoryPlugin";
    if (! window[pn]) window[pn]={};
    if (! window[pn].HistoryFormatter) window[pn].HistoryFormatter={};
    let formatters=window[pn].HistoryFormatter;
    formatters.degrees={unit:'°',f:function(v){return v*180/Math.PI} };

And reload the UI afterwards.

[Moo]

Originally Posted by wellenvogel02

Ok, so you just added history items from the selection.
But as you mentioned you missed some parameters?
How did you try to access those? Have they been available in the SignalK data browser?

For the formatters - as I said - very few lines of js code into your user.js (you can edit this directly in the app).
See the example at the description.
The first 4 lines are just there to be robust against strange loading sequences (your code before the plugin itself). The pure formatter is just one line...

    let pn="avnavHistoryPlugin";
    if (! window[pn]) window[pn]={};
    if (! window[pn].HistoryFormatter) window[pn].HistoryFormatter={};
    let formatters=window[pn].HistoryFormatter;
    formatters.degrees={unit:'°',f:function(v){return v*180/Math.PI} };

And reload the UI afterwards.

The formatting function here and the missing parameters are different issues.

I don't know js so will have to do some research before I can roll my own js scripts. So thanks for that I'll try it out right now

As for the missing parameters. They are there in the SignalK data browser. I didn't make a list of which but they were all "True" directions. No true heading option in AvNav that I could see, no True wind direction even though STW is present. I'll have a proper scientific look this week sometime and report back.

[Kukel]

I've been using AvNav for some sailing trips now, and I'm still happy with it.
I did encounter some issues though.

The most important one: the map (O-charts) doesn't always get updated when sailing. Frequently, I see myself going into empty space.
zooming in or out solves the problem, after a zoom the map is loaded. Not very convenient though.

[wellenvogel02]

Would be helpfull toget some more information...
So which version of AvNav and the o-charts plugin, which chart set which area, which zoom level.
Not sure what exactly the issue is...
I assume you mean that the chart is remaining at a lower zoom level?

[Kukel]

No, the issue is that as I move, at the edges of the map, no new pieces of map are loaded. I see a blank area emerge on the edge of the map screen. So if I move far enough, I go "off the map". It seems that AvNav has to be triggered to load the new piece of map that I am going into. If I zoom in and out, the missing map piece is loaded.
I'm not on the boat right now, but I updated everything about two weeks ago (using AvNav in OpenPlotter) so I think I'm on the latest version of AvNavn and O-Charts-plugin.

[wellenvogel02]

In any case it would be good to know about the chart set and the settings you use.
Sometimes the sets from o-charts are somehow tricky with their charts and coverages.
What could happen:
If you zoom out (i.e. from a higher level to a lower level) the browser will keep the existing chart tiles and just resize them (e.g. going down from 11.3 to 10.6). Once you cross the next int boundary (typically zoom from e.g. 10.6 to 10.5) maybe new tiles get loaded - but due to a bit strange coverage of o-charts they are empty. But if you move e.g. at zoom 10.6 to an area that you did not previously use at higher zoom levels you just have the empty tiles.
You can change this to a certain degree using the "UnderZoom" in the ochart settings - maybe setting this to 3 or 4. This will try to fetch higher resolution parts if others are not there.

If you could provide the chart set you use, maybe some position and a screenshot I can check if you could run into this one.

Question is also: What kind of display are you using? Local display?

[Kukel]

Hi,

During my sailing trip last weekend I tried to take some pictures to show what's happening. As I was sailing, I had to take photo's of the display, so sorry for the bad quality.
The display I use is an Android tablet (Xperia Z3 Tablet Compact) with Chrome.

I turn the display off when I don't need it.
The new map tiles not being loaded happens with screen on, but also with screen off: when I turn on the screen, the blank borders appear.

The map I use:


The way it looks after I've sailed for some time:


The way it looks after I press Zoom In and then Zoom Out (or in reverse order)



Unrelated questions: is there a way to set the distance to a waypoint that has to be reached before the next waypoint is activated? And, is there a quick way to skip to the next waypoint manually when you're on the main navigation screen?

[wellenvogel02]

Looks really strange, never saw something similar.
Will check the photos carefully again when I'm back home ( next weekend).
Can you check if you have data saving enabled in the browser?
Maybe you could try using my BonjourBrowser with internal Browser?
Has the display dim feature that could be helpful to you....
For the distance:
Settings/route/approach
To skip the bext:
Tap on the waypoint (lower left widgets),
Will show the waypoint buttons. The one with the arrow above the red dot does it.

[Kukel]

Hi, I checked, data saving is disabled.
Some new issues: I downloaded the Nautin buoy file for the Netherlands, but I want it to show up only on the higher zoom levels, so I set Min Zoom to 15. However, all buoys keep showing up on the lower zoom levels as well.

[wellenvogel02]

Will also have a look at this one....
How many zoom levels down did you test?
I.e. still visible at 10?

[wellenvogel02]

Ok, now I was able to have a look at the chart issue.
I attrach some screen shots of the area. The problem is already there when you move the chart without any zooming (not only if the boat is moving).
Simple reason: There are no better charts then Z 16 with the default settings.
Whenever a lower res chart is is shown and you zoom in the browser will simply enlarge the already loaded tiles - but no new ones.
You can increase the OverZoom in the settings - as an example to 6. In this case everything works nicely to zoom 18.
Maybe the handling is not optimal - it should not be possible to further zoom in if there are no charts.
https://www.cruisersforum.com/forums...1&d=1623093928
https://www.cruisersforum.com/forums...1&d=1623093928

For the overlay - I cannot reproduce this.
Could you give me the details of the overlay and your config (maybe adding some screen shots).

[toolbar]

Hi Andreas,

we have now started our travels and we are using avnav as our primary navigation system. Mostly it is working out great.

We use the embedded signalk to connect to our actisense nmea2000 to USB gateway as described in the manual.

I can report two bugs:

1) AIS often missing names. See the two attached screenshots taken at nearly the same time.

2) Routes don't get synced between multiple client instances. Ok think I remember it working, but often a second browser won't see updates to a route. Is that even supposed to work?

[BlackSea]

We use the embedded signalk to connect to our actisense nmea2000 to USB gateway as described in the manual.

...
1) AIS often missing names

i assume n2k-usb gateway forwards n2k messages to SignalK? or does it convert to NMEA0183?

if 1. you should look if n2kais-nmea0183 correctly generates the sentences
Otherwise a NMEA log would be helpful

nc localhost 10110 | grep AIVDM > AISNMEA.log

[wellenvogel02]

Routes don't get synced between multiple client instances. Ok think I remember it working, but often a second browser won't see updates to a route. Is that even supposed to work?

As long as both clients are in connected mode routes should be updated.
Are you talking about the active route?
Never saw issues on that, so some more details would be helpfull.

For the Ais:
Could you check the server log for any issues?
I already saw a lot of misformatted AIS messages - maybe again some new flavor of them...
And would be good to know your version - and to get some NMEA log as BlackSea proposed.

[Kukel]

Originally Posted by wellenvogel02

For the overlay - I cannot reproduce this.
Could you give me the details of the overlay and your config (maybe adding some screen shots).

So, I tried to make some screenshots, but the problem had magically disappeared. Maybe this had to do with the map cache being refreshed, I don't know. I'll let it know if the issue comes back.

Meanwhile, a new problem has occurred. I updated to the newest version (june 17th I think) today, and I tried to make a new layer with buoys (nautin). I succeeded in uploading the layer's gpx file. When I wanted to add tgis to a layer, however, it was impossible to edit any of the layer characteristics, or save the layer, because something goes wrong in the browser: when I touch the field that i want to change (minimal zom level) the on-screen keyboard appears briefly, then the layer properties screen changes form (more lines become visible) and the keyboard disappears. I can't enter a value. I tried on an Android tablet and phone.