openCPN WPL/APRS not working in Version 5.8.4

[SY-MOMO]

Hello,
in openCPN Version 5.6.2 we have a set up
so we can use WPL to show APRS positions on the map.

In Version 5.8.4, with the same settings it is NOT working.

In the NMEA monitor we see the data coming in (see picture),
but they do not show up on the map.

In the settings "ship" -> "AIS-Targets" we
activated "WPL-Positions" and selected "APRS Positionreports"

What are we doing wrong?
Can somebody help us?

Jutta and Heiko

[bdbcat]

SY-MoMo...


For analysis, will you post a data dump of the (serial?) datastream you are passing to OpenCPN?


Thanks
Dave

[Hakan]

On O 5.9..
I've tried to read your screenshot and got the sentences printed below. I also verified the checksum.
I can confirm neither "WPR..." nor "Create mark" are working.


$GPWPL,5054.40,N,00437.53,E,ON65SX*44
$GPWPL,5057.68,N,00358.34,E,ON7GR*68
$GPWPL,5112.60,N,00336.76,E,OS5P*34
$GPWPL,5036.95,N,00300.75,E,F5SSM*78

<GREEN>09:41:22 (virtual) $GPWPL,5112.60,N,00336.76,E,OS5P*34<0x0D><0x0A>
<GREEN>09:41:22 (virtual) $GPWPL,5036.95,N,00300.75,E,F5SSM*78<0x0D><0x0A>
<GREEN>09:41:23 (virtual) $GPWPL,5054.40,N,00437.53,E,ON65SX*44<0x0D><0x0A>

btw: SY-MOMO..... Nice boat name! I use the same Presuming the same Ende book?

[Hakan]

SY-MOMO...
I think this function is seldom used and therefor not reported.
I also think the the function "Send to Peer", where it's possible to send routes and marks between different OCPN instances on the same network, has in some cases taken over the "WPL" functions.

[Hakan]

But since it's present it would work.
Issue created

[Antipole]

Here's a script for the JavaScript plugin that does what I think you want.
It creates an OCPN waypoint for each WPL sentence received.
It keeps a record of each mark name and if the same mark name is received again at a different position, it moves the OCPN waypoint accordingly.

I am afloat and do not have time to test fully but it does compile OK.

See the plugin User Guide for help understanding it and for setting attributes for the created waypoints.

By all means discuss this application here but if you have difficulty with the JavaScript plugin, please ask on the plugin discussions.

Position = require("Position");
WayPoint = require("Waypoint");
position = new Position();	//create working position
OCPNonAllNMEA0183(gotOne, "GPWPL");
seen = {};	// remember here seen marks

function gotOne(input){
	if (!input.OK) return;
	sentence = input.value;
	thisPos = position.NMEAdecode(sentence, 0);
	parts = sentence.split(",");
	markName = parts[5];
	if (typeof seen[markName] == "undefined"){ // not seen this mark before
		waypoint = new Waypoint(thisPos);
		waypoint.iconName = "circle";
		// set other attributes here - see UserGuide
		guid = OCPNaddSingleWaypoint(waypoint);
		waypoint.GUID = guid;
		seen.markName = waypoint;
		}
	else {	// we have seen this mark name before
		lastPos = seen.markName.position;
		if ((thisPos.latitude != lastPos.latitude) || (thisPos.longitude != lastPos.longitide)) {
			// it has moved
			seen.markName.position = thisPos;
			OCPNupdatSinglWaypoint(seen.markName);
			}
		}
	}

[Antipole]

Here's a version with debugging:

debug = true;
Position = require("Position");
Waypoint = require("Waypoint");
position = new Position();	//create working position
OCPNonAllNMEA0183(gotOne, "GPWPL");
seen = {};	// remember here seen marks

function gotOne(input){
	if (!input.OK) return;
	sentence = input.value;
	if (debug) print(sentence);
	thisPos = position.NMEAdecode(sentence, 0);
	parts = sentence.split(",");
	markName = parts[5];
	if (typeof seen.markName == "undefined"){ // not seen this mark before
		if (debug) print("\tis new\n");
		waypoint = new Waypoint(thisPos);
		waypoint.iconName = "circle";
		// set other attributes here - see UserGuide
		guid = OCPNaddSingleWaypoint(waypoint);
		waypoint.GUID = guid;
		seen.markName = waypoint;
		}
	else {	// we have seen this mark name before
		lastPos = seen.markName.position;
		if ((thisPos.latitude != lastPos.latitude) || (thisPos.longitude != lastPos.longitide)) {
			// it has moved
			if (debug) print("\thas moved\n");
			seen.markName.position = thisPos;
			OCPNupdatSingleWaypoint(seen.markName);
			}
		else if (debug) print("\thas not moved\n");
		}
	}

[Pella]

Originally Posted by Hakan

But since it's present it would work.
Issue created

Not sure if it helps in any way, but it also doesn't work on the latest android version. I see the NMEA sentences in the viewer but no waypoints are created.

[bdbcat]

Pella...
We have a solution in hand, will appear in the upcoming OpenCPN v5.9 Beta series.
Thanks for your patience.


Dave

[SY-MOMO]

Hello to all

We have been sailing offshore for a few days, so the delay in answering.
Thanks for all the Posts/comments.
We are not really firm with Java, but are looking forward to the next Beta-Version.

Jutta DL1HXB & Heiko DO3SYM
on
www.SY-MOMO.de

PS:
Yes, boatname was inspired of book from Michael Ende, right story for longterm cruising.