topic Re: Directions widget "getDirections()" method does not route in ArcGIS JavaScript Maps SDK Questions

Directions widget &quot;getDirections()&quot; method does not route

JamesSampica — Fri, 21 Mar 2014 14:34:43 GMT

When my map loads I want to have the route automatically calculated and displayed without clicking the "Get Directions" button.

on https://developers.arcgis.com/javascript/jsapi/directions-amd.html#getdirections is lists the method getDirections() that says will automatically route and display the inputs.

directions = new Directions({                     map: map,                     stops: ["Knoxville ", "Chattanouga"], },"directionsDiv"); directions.startup(); directions.getDirections();

I load the inputs using "stops" parameter and call getDirections() but it does not display or route anything and instead gives me "Enter an origin and a destination." despite both inputs being correctly filled. If I click the button with the same inputs it will give me the correct route.

JSFiddle
http://jsfiddle.net/shoe788/XLSqF/

Re: Directions widget "getDirections()" method does not route

JonathanUihlein — Fri, 21 Mar 2014 15:10:43 GMT

Hi and welcome to the forums!

Are you waiting for both the DOM and the map to load before calling getDirections()?

Re: Directions widget "getDirections()" method does not route

JamesSampica — Fri, 21 Mar 2014 15:21:27 GMT

Hi and welcome to the forums!

Are you waiting for both the DOM and the map to load before calling getDirections()?

This could be the issue. If I attach `getDirections()` to a button and click it after the map loads, it works fine.

How can I make sure the map is loaded before calling getDirections()?

Re: Directions widget "getDirections()" method does not route

JonathanUihlein — Sat, 11 Dec 2021 21:51:40 GMT

You can use DOJO's AMD style event listener, on, and listen for the 'load' event that the map emits.

http://dojotoolkit.org/reference-guide/1.9/dojo/on.html#dojo-on

Blog:
http://dojotoolkit.org/documentation/tutorials/1.9/events/

          on(map, "load", function(){
            // the map has been loaded, do the following
            directions.getDirections();
          });

edit*

This should also work (same thing written differently).

          map.on("load", function(){
            // the map has been loaded, do the following
            directions.getDirections();
          });

Re: Directions widget "getDirections()" method does not route

JamesSampica — Sat, 11 Dec 2021 21:51:42 GMT

You can use DOJO's AMD style event listener, on, and listen for the 'load' event that the map emits.

http://dojotoolkit.org/reference-guide/1.9/dojo/on.html#dojo-on

Blog:
http://dojotoolkit.org/documentation/tutorials/1.9/events/
          on(map, "load", function(){
            // the map has been loaded, do the following
            directions.getDirections();
          });
edit*

This should also work (same thing written differently).
          map.on("load", function(){
            // the map has been loaded, do the following
            directions.getDirections();
          });

The method never executes. I think the map is being loaded before the directions route is executed.

if I do this line

console.log(map.loaded);
directions.getDirections();

I get output "true" but directions does not route.

Re: Directions widget "getDirections()" method does not route

JamesSampica — Fri, 21 Mar 2014 18:08:13 GMT

Here is a JS Fiddle documenting this

http://jsfiddle.net/shoe788/XLSqF/

You can see that when the map loads all it does is output "Enter an origin and a destination." instead of executing the route

Re: Directions widget "getDirections()" method does not route

JonathanUihlein — Fri, 21 Mar 2014 18:16:42 GMT

Hey James, Thanks for that sample. I am also running into an issue getting this to work. I'll find out more and post an update.

Re: Directions widget "getDirections()" method does not route

JonathanUihlein — Mon, 24 Mar 2014 16:04:19 GMT

Hey James,

It looks like this is an unintended bug. It will be fixed in the next version.

In the meantime, here is a work-around using one of the internal ("private") functions.

                   var directions = new Directions({                     map: map                 }, "dir");          directions.on("load", function(){           directions._updateStops(["Knoxville ", "Chattanouga"]).then(function(stops){             console.log("stops object: ", stops);             directions.getDirections();           });         });

Note: For this work-around, don't set the 'stops' parameter in the Direction widget constructor.
We are using the deferred returned by _updateStops() to confirm that the stops have been properly loaded.

Re: Directions widget "getDirections()" method does not route

JamesSampica — Sat, 11 Dec 2021 21:51:45 GMT

Hey James,

It looks like this is an unintended bug. It will be fixed in the next version.

In the meantime, here is a work-around using one of the internal ("private") functions.
          
        var directions = new Directions({
                    map: map
                }, "dir");

        directions.on("load", function(){
          directions._updateStops(["Knoxville ", "Chattanouga"]).then(function(stops){
            console.log("stops object: ", stops);
            directions.getDirections();
          });
        });
Note: For this work-around, don't set the 'stops' parameter in the Direction widget constructor.
We are using the deferred returned by _updateStops() to confirm that the stops have been properly loaded.

Thanks for looking into this Jonathan,

I am seeing this workaround works as expected.

Thanks.

topic Re: Directions widget "getDirections()" method does not route in ArcGIS JavaScript Maps SDK Questions

Directions widget &amp;quot;getDirections()&amp;quot; method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Re: Directions widget "getDirections()" method does not route

Directions widget "getDirections()" method does not route