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

          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











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53268606%2fleaflet-icon-based-on-data-source%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          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


















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53268606%2fleaflet-icon-based-on-data-source%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Florida Star v. B. J. F.

          Error while running script in elastic search , gateway timeout

          Adding quotations to stringified JSON object values