topic Facility Input for Closest Facility Analysis in ArcGIS JavaScript Maps SDK Questions

Facility Input for Closest Facility Analysis

WesAskew — Sat, 14 Dec 2013 14:40:51 GMT

I am new to ArcGIS for JavaScript and am having trouble performing a closest facility analysis. I have a feature layer from a REST feature service that I would like to be the facility layer input. The sample that my code is based on is located here: https://developers.arcgis.com/en/javascript/jssamples/routetask_closest_facility.html. This sample uses manually input lat/long info to draw graphics, which is then converted to a feature set. What is the best way that I should go about obtaining a feature set from my feature layer? I have tried multiple methods but all have failed. Thanks in advance.

Re: Facility Input for Closest Facility Analysis

BjornSvensson — Sun, 15 Dec 2013 18:08:07 GMT

I have a feature layer from a REST feature service that I would like to be the facility layer input. ...What is the best way that I should go about obtaining a feature set from my feature layer?

The input can be either a FeatureSet OR a DataLayer, so you can point it straight to your feature service.

See the API Reference at https://developers.arcgis.com/en/javascript/jsapi/closestfacilityparameters.html#facilities for something like:

//Requires ArcGIS Server 10.1 or greater params.facilities = new esri.tasks.DataFile({   url: "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Network/USA/MapServer/3/query?where=1%3D1&returnGeometry=true&outFields=*&f=json" });

Re: Facility Input for Closest Facility Analysis

JohnPapageorgiou — Wed, 23 Jul 2014 07:21:44 GMT

Hi,

I'm having the same problem as Wesley, where exactly does the substitution happen? I tried it in several places without success. Do I need to use a map service or a feature service? I'm kind of at a loss of what a feature set is. Main point is I don't want to write a list of all my facilities with their coordinates in the code, I would like to draw that from a data set such as a feature service.

thanks,

John