Esri Map Services

General
1

New to Node-RED and am tooling around with the WorldMap Node. I'm interested to see if I can overlay this map service: https://nowcoast.noaa.gov/arcgis/rest/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer

This is my logic, I get no errors but also no map.

msg.payload = {};
msg.payload.command = {};

var mURL = "https://nowcoast.noaa.gov/arcgis/rest/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer";

msg.payload.command.map = {overlay:"Weather", url:mURL, layer:"Weather"};

return msg;

If this is not the right forum I apologize in advanced,

Thanks

Steve

2

Hi,
well you have just tried to point at a web page of text so it's not going to show a map ... you need to find the actual WMS map server that that page is talking about. - This requires a bit of digging with things like QGIS etc...

However - testing it for you... - has found a small bug in the overlay naming - so you'll also need to pull latest 1.4.5 version of the worldmap node from npm.

msg.payload = {};
msg.payload.command = {};

msg.payload.command.map = {
    overlay: "NowCoast",
    url: 'https://nowcoast.noaa.gov/arcgis/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer/WmsServer?',
    opt:  {
        layers: '1',
        format: 'image/png',
        transparent: true,
        attribution: "NOAA/NWS"
    },
    wms: true
}

return msg;

looks good though ! (IMHO)

image
image.jpg904Ă—552 155 KB

1 Like
3

Perfect, thanks! I updated to the latest worldmap version and replaced my logic with yours.

Works like a charm.

Thanks

Steve

4

@smulberry care to share the flow, I'd love to see the specifics.

5

somewhat trivial ...

[{"id":"f22e5b4f.f7bf28","type":"worldmap","z":"dfe4ec36.0a5a5","name":"","lat":"","lon":"","zoom":"","layer":"","cluster":"","maxage":"","usermenu":"show","layers":"show","panit":"false","x":530,"y":1560,"wires":[]},{"id":"36c4b928.77d416","type":"inject","z":"dfe4ec36.0a5a5","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":140,"y":1560,"wires":[["4ff448eb.0d5538"]]},{"id":"4ff448eb.0d5538","type":"function","z":"dfe4ec36.0a5a5","name":"US Rainfall","func":"msg.payload = {};\nmsg.payload.command = {};\n\nmsg.payload.command.map = {\n    overlay: \"NowCoast\",\n    url: 'https://nowcoast.noaa.gov/arcgis/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer/WmsServer?',\n    opt:  {\n        layers: '1',\n        format: 'image/png',\n        transparent: true,\n        attribution: \"NOAA/NWS\"\n    },\n    wms: true\n}\n\nreturn msg;","outputs":1,"noerr":0,"x":330,"y":1560,"wires":[["e4c2dd2d.e5f65","f22e5b4f.f7bf28"]]}]
1 Like
7

argh, doing a refresh always helps! Thanks got it working now