Latest Contributions by SamDrummond2

I'm pretty sure that I understand what you are thinking now. That approach sounds reasonable providing you don't have many facilities. The limitation is that every time you want to find the nearest route you will be passing the clicked location + all the facility features to the server each time as parameters. This is potentially really inefficient. An alternative option might be to create a geoprocessing service which: - Accepts a point as an input parameter - Does all the routing and finds the nearest facility based on the source data server side - returns the nearest facility as a point feature Make sense? Sam ... View more

However, if you want to get the point features from the facilities feature service you could probably do a query like the one below: [servername]/arcgis/rest/services/[mapservicename]/MapServer/[layerIndex]/query?where=objectid>1&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=json This simply asks for all the features with an ObjectID > 0 and asks for all fields to be returned ('*'). You could be specific about which fields you want returned. If you want to see the REST form for creating the query you could just change the 'f' parameter to equal 'html' so: [servername]/arcgis/rest/services/[mapservicename]/MapServer/[layerIndex]/query?where=objectid>1&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=html ... View more

Okay, that makes sense so far - with one exception. You said "because it's using a WebMap from AGOL the layers are being shown as images not features with geometry" - the webmap doesn't define whether its an image or a feature. Do you mean that you are using a tiled service in the webmap? However, more to the point once you have the depot points how do you intend to get the closest facility? Sam ... View more

Hey Hamish, Your post is a little tricky to decipher. Are you able to confirm the following: Are you wanting to find the nearest location by driving distance (routing) or as the crow flies (Euclidean) You have access to a location (point) that the user will click on the map You have access to a map/feature service that has the location of all the depots If I can get some clarification I might be able to help you a little bit more. Or you can message me privately and we can chat on the phone. Thanks Sam ... View more

Thanks Bernie. To be honest, this was how I was going to tackle the problem intially. The issue is that there is not an easy way to get a handle on the unopened web maps spatial reference - so I can perform a projection using a geometry service for sure - but I don't know what I'm projecting it into. Would seem more sensible for the web app builder to: 1. Get the parameters from the URL 2. If there is a webmap ID - load the webmap and 3. Get a web maps spatial reference 4. check if the WKID of the webmap and the extent args match 5. If they don't do a reproject 6. Move the map to the reprojected extent. Thanks ... View more

Thanks Robert, I scoured through the code last night and agree - I don't see anywhere where the extent is reprojected. So it strikes me as odd that you need to specify a WKID, if the app is simply going to ignore it and use the extent parameters in whatever projection the web map is in. Oh well. ... View more

Hey Michael, I'm agree with you - I think it is because you are using a minified version of the widget. I've used both Chrome and Firefox to debug custom widgets (and Web AppBuilder souce code). Are you able to debug any of the OOTB widgets from the developers edition? Sam ... View more

Hey Nat and Stan, Nat thanks for replying but Stan is correct. I'm still working in a dev environment and I'm simply opening the stemapp using http://[servername]/webappbuilder/?id=stemapp​ and manually changing the theme using the WAB. Thanks S ... View more

Hello All, I spent some time looking through the jimu.js folder specifically at the MapManager, LayoutManager and the WidgetManager to see how Esri manages with map and widget lifecycle. From this I have found the following solution. When the user clicks on a button to load a new web map the following happens: //The widget broadcasts a message that the map is about to be destroyed   topic.publish('beforeMapDestory', this.map);   //The map is destroyed   this.map.destroy();   //A new deffered object is created to handle the creation of a new webmap   var mapDeferred = jimuUtils.createWebMap(portalUrl, webMapItemId, mapContainerId, webMapOptions);   //The deffered is executed ensuring that the response is executed with "this" being the widget.js file   mapDeferred.then(lang.hitch(this, this._processNewMapSuccess), lang.hitch(this, this._processNewMapFail)); When the web map creation is complete the following function is executed: //I set up the returned web map as a map object   var map = response.map;   map.itemId = this.appConfig.map.itemId;   map.itemInfo = response.itemInfo;   map.webMapResponse = response;   // enable snapping   var options = {   snapKey: keys.copyKey   };   map.enableSnapping(options);   //The widget gets a handle on the appConfig   var appConfig = this.appConfig   //The widget gets the configuration for the widget of interest   //This would need to be made dynamic but for testing I   //just simply grabbed the widget by its position in the array   var mapSwitcherWidgetConfig = appConfig.widgetPool.widgets[9]   //The widget changes the openAtStart propertie to true   mapSwitcherWidgetConfig.openAtStart = true   //The map is set as the applications map property   this.map = map;   //The widget broadcasts a message that the map has been changed   //The app builder handles all the magic from here   topic.publish('mapChanged', this.map); One thing I haven't included in the code above is that you can change the intial map extent in the appConfig so that when the new web map loads its displayed at the extent that the user was previously viewing at. Hope this helps everyone. Regards Sam ... View more

Thanks Robert, that worked a treat!!! ... View more