This repo contains some basic examples on how to query Locations and HistoricalLocations
from an OGC SensorThingsAPI conform service,
as for instance FROST-Server instance and place them
on a web map using Open Source mapping APIs like Leaflet.js.
Plot the last Locations of all Things on a map and add a popup to the markers with basic
informations on the Thing. To cluster markers at the same location
Leaflet MarkerCluster is used.
Adapt line 16 of js/locationMarkers/locationMarkers.js to change the FROST instance.
// Configure FROST instance
var frostBaseURL = 'https://my.frost.server.de/FROST-Server/v1.1';Open locationMarkers.html in a browser to view the results.
Query the last n HistroicalLocations from a given Thing in a time period (optional)
and plot a trajectory with ArrowHeads
from it.
Adapt lines 15-18 of js/trajectory/trajectory.js:
// FROST server, Thing, number of HistoricalLocations, time filter (optional)
var frostBaseURL = 'https://my.frost.server.de/FROST-Server/v1.1';
var thingIotID = 16;
var nHistoricalLocations = 10;
var timeIntervalFilter = '$filter=time%20gt%202020-10-20T00:00:00.000Z%20and%20time%20lt%202020-10-22T23:59:59.999Z';Open trajectory.html in a browser to view the result.
