Leaflet : icon based on data source












0














I am building a website with Leaflet map that uses a data source to populate the map and the popups. Here is how my JSON data looks like:



{
"time_exo": null,
"time_stm": 1541787833,
"results": [
{
"agency": "STM",
"icon": "busSTMIcon",
"vehicle_id": "22210",
"route_id": "55",
"trip_id": "188767688",
"start_time": "12:59:00",
"start_date": "20181109",
"current_stop_sequence": 20,
"current_status": 2,
"lat": 45.52397,
"lon": -73.59475
},
...
}


Here is my JavaScript code:



 $.get(dataUrl, function(data, pos_status) {
console.log("pos call result: " + pos_status);
// show data on map
data.results.forEach(function(element) {
L.marker(L.latLng(element.lat, element.lon), {
icon: busSTMIcon
}).addTo(posLayer)
.bindPopup("<h3>" + element.agency + " " + element.vehicle_id + "</h3><b>Trip: </b> " + element.trip_id + "<br><b>Route: </b>" + element.route_id + "<br><b>Start: </b>" + element.start_date + element.start_time + "<br><b>Current stop sequence: </b>" + element.current_stop_sequence + "<br><b>Status: </b>" + element.current_status);
});
});


Here is how I declare my busSTMIcon :



var busSTMIcon = L.icon({
iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg',
iconSize: [20, 20]
});


Currently I use the static way which causes all markers to have the same icon. I would like to have the icon based on my data source. What would be the best way to achieve this?










share|improve this question





























    0














    I am building a website with Leaflet map that uses a data source to populate the map and the popups. Here is how my JSON data looks like:



    {
    "time_exo": null,
    "time_stm": 1541787833,
    "results": [
    {
    "agency": "STM",
    "icon": "busSTMIcon",
    "vehicle_id": "22210",
    "route_id": "55",
    "trip_id": "188767688",
    "start_time": "12:59:00",
    "start_date": "20181109",
    "current_stop_sequence": 20,
    "current_status": 2,
    "lat": 45.52397,
    "lon": -73.59475
    },
    ...
    }


    Here is my JavaScript code:



     $.get(dataUrl, function(data, pos_status) {
    console.log("pos call result: " + pos_status);
    // show data on map
    data.results.forEach(function(element) {
    L.marker(L.latLng(element.lat, element.lon), {
    icon: busSTMIcon
    }).addTo(posLayer)
    .bindPopup("<h3>" + element.agency + " " + element.vehicle_id + "</h3><b>Trip: </b> " + element.trip_id + "<br><b>Route: </b>" + element.route_id + "<br><b>Start: </b>" + element.start_date + element.start_time + "<br><b>Current stop sequence: </b>" + element.current_stop_sequence + "<br><b>Status: </b>" + element.current_status);
    });
    });


    Here is how I declare my busSTMIcon :



    var busSTMIcon = L.icon({
    iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg',
    iconSize: [20, 20]
    });


    Currently I use the static way which causes all markers to have the same icon. I would like to have the icon based on my data source. What would be the best way to achieve this?










    share|improve this question



























      0












      0








      0







      I am building a website with Leaflet map that uses a data source to populate the map and the popups. Here is how my JSON data looks like:



      {
      "time_exo": null,
      "time_stm": 1541787833,
      "results": [
      {
      "agency": "STM",
      "icon": "busSTMIcon",
      "vehicle_id": "22210",
      "route_id": "55",
      "trip_id": "188767688",
      "start_time": "12:59:00",
      "start_date": "20181109",
      "current_stop_sequence": 20,
      "current_status": 2,
      "lat": 45.52397,
      "lon": -73.59475
      },
      ...
      }


      Here is my JavaScript code:



       $.get(dataUrl, function(data, pos_status) {
      console.log("pos call result: " + pos_status);
      // show data on map
      data.results.forEach(function(element) {
      L.marker(L.latLng(element.lat, element.lon), {
      icon: busSTMIcon
      }).addTo(posLayer)
      .bindPopup("<h3>" + element.agency + " " + element.vehicle_id + "</h3><b>Trip: </b> " + element.trip_id + "<br><b>Route: </b>" + element.route_id + "<br><b>Start: </b>" + element.start_date + element.start_time + "<br><b>Current stop sequence: </b>" + element.current_stop_sequence + "<br><b>Status: </b>" + element.current_status);
      });
      });


      Here is how I declare my busSTMIcon :



      var busSTMIcon = L.icon({
      iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg',
      iconSize: [20, 20]
      });


      Currently I use the static way which causes all markers to have the same icon. I would like to have the icon based on my data source. What would be the best way to achieve this?










      share|improve this question















      I am building a website with Leaflet map that uses a data source to populate the map and the popups. Here is how my JSON data looks like:



      {
      "time_exo": null,
      "time_stm": 1541787833,
      "results": [
      {
      "agency": "STM",
      "icon": "busSTMIcon",
      "vehicle_id": "22210",
      "route_id": "55",
      "trip_id": "188767688",
      "start_time": "12:59:00",
      "start_date": "20181109",
      "current_stop_sequence": 20,
      "current_status": 2,
      "lat": 45.52397,
      "lon": -73.59475
      },
      ...
      }


      Here is my JavaScript code:



       $.get(dataUrl, function(data, pos_status) {
      console.log("pos call result: " + pos_status);
      // show data on map
      data.results.forEach(function(element) {
      L.marker(L.latLng(element.lat, element.lon), {
      icon: busSTMIcon
      }).addTo(posLayer)
      .bindPopup("<h3>" + element.agency + " " + element.vehicle_id + "</h3><b>Trip: </b> " + element.trip_id + "<br><b>Route: </b>" + element.route_id + "<br><b>Start: </b>" + element.start_date + element.start_time + "<br><b>Current stop sequence: </b>" + element.current_stop_sequence + "<br><b>Status: </b>" + element.current_status);
      });
      });


      Here is how I declare my busSTMIcon :



      var busSTMIcon = L.icon({
      iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg',
      iconSize: [20, 20]
      });


      Currently I use the static way which causes all markers to have the same icon. I would like to have the icon based on my data source. What would be the best way to achieve this?







      javascript json leaflet






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 12 '18 at 19:34







      Félix Desjardins

















      asked Nov 12 '18 at 19:10









      Félix DesjardinsFélix Desjardins

      1,66631429




      1,66631429
























          1 Answer
          1






          active

          oldest

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          1














          If you create the icon variable as part of an object (to which you could add other icons):



          var icons = { 
          "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] })
          };


          and then you would write



          icon: icons[element.icon] 


          (instead of icon: busSTMIcon)



          then it would dynamically pick the right item from the icons object based on the string in element.icon






          share|improve this answer























          • That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
            – Félix Desjardins
            Nov 12 '18 at 19:29












          • what is the content of your busSTMIcon variable in your original code?
            – ADyson
            Nov 12 '18 at 19:30










          • check my edited post
            – Félix Desjardins
            Nov 12 '18 at 19:34






          • 2




            Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
            – ADyson
            Nov 12 '18 at 19:41








          • 1




            @FélixDesjardins done, thankyou :-)
            – ADyson
            Nov 14 '18 at 8:51











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          1 Answer
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          active

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          If you create the icon variable as part of an object (to which you could add other icons):



          var icons = { 
          "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] })
          };


          and then you would write



          icon: icons[element.icon] 


          (instead of icon: busSTMIcon)



          then it would dynamically pick the right item from the icons object based on the string in element.icon






          share|improve this answer























          • That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
            – Félix Desjardins
            Nov 12 '18 at 19:29












          • what is the content of your busSTMIcon variable in your original code?
            – ADyson
            Nov 12 '18 at 19:30










          • check my edited post
            – Félix Desjardins
            Nov 12 '18 at 19:34






          • 2




            Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
            – ADyson
            Nov 12 '18 at 19:41








          • 1




            @FélixDesjardins done, thankyou :-)
            – ADyson
            Nov 14 '18 at 8:51
















          1














          If you create the icon variable as part of an object (to which you could add other icons):



          var icons = { 
          "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] })
          };


          and then you would write



          icon: icons[element.icon] 


          (instead of icon: busSTMIcon)



          then it would dynamically pick the right item from the icons object based on the string in element.icon






          share|improve this answer























          • That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
            – Félix Desjardins
            Nov 12 '18 at 19:29












          • what is the content of your busSTMIcon variable in your original code?
            – ADyson
            Nov 12 '18 at 19:30










          • check my edited post
            – Félix Desjardins
            Nov 12 '18 at 19:34






          • 2




            Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
            – ADyson
            Nov 12 '18 at 19:41








          • 1




            @FélixDesjardins done, thankyou :-)
            – ADyson
            Nov 14 '18 at 8:51














          1












          1








          1






          If you create the icon variable as part of an object (to which you could add other icons):



          var icons = { 
          "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] })
          };


          and then you would write



          icon: icons[element.icon] 


          (instead of icon: busSTMIcon)



          then it would dynamically pick the right item from the icons object based on the string in element.icon






          share|improve this answer














          If you create the icon variable as part of an object (to which you could add other icons):



          var icons = { 
          "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] })
          };


          and then you would write



          icon: icons[element.icon] 


          (instead of icon: busSTMIcon)



          then it would dynamically pick the right item from the icons object based on the string in element.icon







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 14 '18 at 8:50

























          answered Nov 12 '18 at 19:21









          ADysonADyson

          23.1k112444




          23.1k112444












          • That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
            – Félix Desjardins
            Nov 12 '18 at 19:29












          • what is the content of your busSTMIcon variable in your original code?
            – ADyson
            Nov 12 '18 at 19:30










          • check my edited post
            – Félix Desjardins
            Nov 12 '18 at 19:34






          • 2




            Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
            – ADyson
            Nov 12 '18 at 19:41








          • 1




            @FélixDesjardins done, thankyou :-)
            – ADyson
            Nov 14 '18 at 8:51


















          • That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
            – Félix Desjardins
            Nov 12 '18 at 19:29












          • what is the content of your busSTMIcon variable in your original code?
            – ADyson
            Nov 12 '18 at 19:30










          • check my edited post
            – Félix Desjardins
            Nov 12 '18 at 19:34






          • 2




            Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
            – ADyson
            Nov 12 '18 at 19:41








          • 1




            @FélixDesjardins done, thankyou :-)
            – ADyson
            Nov 14 '18 at 8:51
















          That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
          – Félix Desjardins
          Nov 12 '18 at 19:29






          That's what I try but it dosen't work. The way that Leaflet work, you have to first declare the icon : var busSTMIcon = L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] });
          – Félix Desjardins
          Nov 12 '18 at 19:29














          what is the content of your busSTMIcon variable in your original code?
          – ADyson
          Nov 12 '18 at 19:30




          what is the content of your busSTMIcon variable in your original code?
          – ADyson
          Nov 12 '18 at 19:30












          check my edited post
          – Félix Desjardins
          Nov 12 '18 at 19:34




          check my edited post
          – Félix Desjardins
          Nov 12 '18 at 19:34




          2




          2




          Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
          – ADyson
          Nov 12 '18 at 19:41






          Either that or create the icon as part of an object (to which you could add other icons): var icons = { "busSTMIcon" : L.icon({ iconUrl: 'https://felixinx.github.io/mtl-gtfs-rt/assets/map-bus-stm.svg', iconSize: [20, 20] }) }; and then you would write icon: icons[element.icon] so it would dynamically pick the right item from the icons object based on the string in element.icon.
          – ADyson
          Nov 12 '18 at 19:41






          1




          1




          @FélixDesjardins done, thankyou :-)
          – ADyson
          Nov 14 '18 at 8:51




          @FélixDesjardins done, thankyou :-)
          – ADyson
          Nov 14 '18 at 8:51


















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