WorldMap tracks

[ChristopherO1]

As requested

Report into Worldmap tracks, as discussed in https://discourse.nodered.org/t/worldmap-gps-tracking/13895/17

Tracks sometimes not displaying in the trace When the trace points reaches the specified max in the tracks node, the trace is deleted to restart, rather than just removing the oldest point

GPS data, used to plot traces, as requested AbeewayData.txt DraginoData.txt

there are two devices in the second file

[dceejay]

Hi

this is my test flow

[{"id":"acff489f.c561b8","type":"worldmap","z":"a68cca8a.e5ba98","name":"","lat":"","lon":"","zoom":"","layer":"OSM","cluster":"","maxage":"","usermenu":"show","layers":"show","panit":"false","panlock":"false","zoomlock":"false","hiderightclick":"false","coords":"deg","showgrid":"true","path":"","x":390,"y":480,"wires":[]},{"id":"d54e493a.56cce8","type":"worldmap-tracks","z":"a68cca8a.e5ba98","name":"","depth":"6","layer":"separate","x":370,"y":440,"wires":[["acff489f.c561b8"]]},{"id":"ebd4a1dc.3aff5","type":"function","z":"a68cca8a.e5ba98","name":"Add icons and colour","func":"if (msg.payload.name === \"LGT92-01819092\") {\n    msg.payload.icon = \"male\";\n    msg.payload.color = \"#000\",\n    msg.payload.iconColor = \"green\"\n}\nif (msg.payload.name === \"LGT92-01819094\") {\n    msg.payload.icon = \"twitter\";\n    msg.payload.color = \"#44A\",\n    msg.payload.iconColor = \"cyan\"\n}\nreturn msg;","outputs":1,"noerr":0,"x":180,"y":400,"wires":[["66d2df66.92ab","d54e493a.56cce8","acff489f.c561b8"]]},{"id":"66d2df66.92ab","type":"debug","z":"a68cca8a.e5ba98","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":390,"y":400,"wires":[]},{"id":"83ca4e74.17293","type":"change","z":"a68cca8a.e5ba98","name":"","rules":[{"t":"move","p":"payload.DeviceName","pt":"msg","to":"payload.name","tot":"msg"},{"t":"move","p":"payload.Latitude","pt":"msg","to":"payload.lat","tot":"msg"},{"t":"move","p":"payload.Longitude","pt":"msg","to":"payload.lon","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":420,"y":340,"wires":[["ebd4a1dc.3aff5"]]},{"id":"c2c4f04b.f5351","type":"json","z":"a68cca8a.e5ba98","name":"","property":"payload","action":"","pretty":false,"x":270,"y":340,"wires":[["83ca4e74.17293"]]},{"id":"99b1e032.0c395","type":"delay","z":"a68cca8a.e5ba98","name":"","pauseType":"rate","timeout":"5","timeoutUnits":"seconds","rate":"2","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":110,"y":340,"wires":[["c2c4f04b.f5351"]]},{"id":"fd9fe4e9.ee12a8","type":"file in","z":"a68cca8a.e5ba98","name":"","filename":"/Users/conway/Downloads/DraginoData.txt","format":"lines","chunk":false,"sendError":false,"encoding":"none","x":370,"y":280,"wires":[["99b1e032.0c395"]]},{"id":"9f5fd8ea.52e5e8","type":"inject","z":"a68cca8a.e5ba98","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":280,"wires":[["fd9fe4e9.ee12a8"]]}]

It seems to work OK for me - displaying last 5 positions as a track for each of the devices in the second dataset

[dceejay]

Pushed as version 2.0.19 to check we are using identical versions

[ChristopherO1]

Hi Dave

I loaded your test flow, and run it. All seemed ok, could see the tracks being drawn on the map. Increased the number of points to 20, all still good. could see the oldest trace point being deleted as time passed.

Your flow is drawing new points every second Mine is dependant on the GPS devices, minimum time is 5 min, and out to ~30min this may have been causing my missing traces in the track.

Upgraded the Worldmap to 2.0.19, and now have a problem Just have a white screen for the maps. The menu doesn't expand out either

this is an issue for both your test flow, and my original flow as well

[image: image.png]

is there any way I can revert back to 2.0.18? Or is there something missing in my config?

[image: image.png]

I've stopped and restarted the server a couple of times, to no avail.

Thanks

Chris

On Wed, 7 Aug 2019 at 21:58, Dave Conway-Jones notifications@github.com wrote:

Pushed as version 2.0.19 to check we are using identical versions

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[ChristopherO1]

Hi Dave I managed to get my Maps to display. Small typo in /worldmap/worlmap.js line 1681

edit was //if (cmd.map.hasOwnProperty("fit") && cmd.map.fit === true)) { map.fitBounds(overlays[cmd.map.overlay].getBounds()); }

to if (cmd.map.hasOwnProperty("fit") && cmd.map.fit === true) { map.fitBounds(overlays[cmd.map.overlay].getBounds()); }

Chris

[dceejay]

Doh - mea cupla - will fix... Meanwhile do you have the marker timeout set - default is 600s (10 mins) -

set to 0 to disable timeout.

v 2.0.20 now up...

[ChristopherO1]

still got a missed trace point

this is the file of the track points, for that device Dragino92Trax.txt if it helps

[ChristopherO1]

Think I may have sussed out why, or at least a potential cause of, the missed track(s) in the trace This is an ongoing development project. I've just changed something and deployed it, and looking at the map, I have a missing track in the trace.

[dceejay]

can you confirm ? can we close this issue now ?

[INDRANI125]

Can I have more than 20 points in track node that comes with nodered? As my object is moving, there can be more than 20 points.What can be maximum value for number of points in track?

[dceejay]

you can set the number of points to whatever you like. The only limit is the memory on your server and browser

[INDRANI125]

you can set the number of points to whatever you like. The only limit is the memory on your server and browser

Hi.. Thank you for your reply :-) 1.Is there any way to see memory consumption data or chart based on changing track points? 2.Also when I redeploy nodered flow old tracks I am not able to see.Is there any work around for that or not? 3.In tracking node, do we have any property to make the lines curved like route like we have in draw layer of polygon?using tracking node I want to see lines like route instead of straight line.Can you suggest?

[dceejay]

1) usual operating system tools and browser console tools 2) you could maybe use a modified nodes deploy option to only stop/start those that have changed ? otherwise no - you would need to store old points yourself somewhere like a database or file. 3) which version of worldmap do you have - there should be a smooth curve option already

[INDRANI125]

For point number 3 upgraded to new version and ticked that but still getting straight lines not routes like we get in google map. I want path like we get in drawing layer after we draw polylines and finish with route.

[dceejay]

tracks won't use routes as it doesn't know if you are walking, a car or a plane etc.. so it just smoothes the lines between the points you give it. If you record more points as you travel it will plot them on the route you take. I'm not quite sure what you actual requirement is as we can't assume the object takes any particular road.

[dceejay]

There are several online route generators you could call including http://project-osrm.org/ and https://developer.here.com/products/routing for example - that you can call with your points and get back a polyline. I'm not going to expose that in the tracks node as making too many calls to those will be against their Ts&Cs - but you can easily call them yourself.

[INDRANI125]

for example I am having some car whose coordinates are changing and I want to track in map. Currently tracking is happening. I just want to know can we change straight line like curved line shown in third image via tracking node?

[dceejay]

simple answer is no - the track node does not do that... it just draws line (or curve) between the actual measurement points. If you are tracking at say 1 point per second it should be pretty good - but yes will totally depend on your update rate. If you really need it on roads then yes you will need to save the points outside fo Node-RED - call a routing service like above, and then send the generated line in instead.

[INDRANI125]

Thank you for your reply. As you mentioned track node draws line( or curve).currently I am drawing line.but i want curve like you mentioned.to get curve instead of line what parameter should I change or feed to track node?

[dceejay]

for curves tick the smooth tracks checkbox as you have above.