Latest Contributions by simoxu

I'd suggest you to get JSONs  of the generated webmap and the save-as copy of the same webmap using agol assistant and compare the content of the JSON to see the difference, then you can adjust your code accordingly. ... View more

Thank you Egge-Jan, Maybe I didn't state my issue clearly. I built the webmap in ArcGIS Online, and I "load" it using  ArcgIS JavaScript API 3.28 like the following:         arcgisUtils.createMap("4abe6a830b8f466dacf8abfde567a781", "map").then(function (response) {           //update the app           dom.byId("title").innerHTML = response.itemInfo.item.title;           dom.byId("subtitle").innerHTML = response.itemInfo.item.snippet;           var map = response.map;           //add the scalebar           var scalebar = new Scalebar({             map: map,             scalebarUnit: "english"           }); The above is a code snippet from this ESRI exmaple. In this case, I found I can't change the basemap of the webmap. ... View more

Can you view the generated web map properly in the Map Viewer in AGOL? and check the permission of this map, when you save a web map, you are the owner of the copy. ... View more

Maybe you can try the following code to update the domain values of a service Try it on a test service before updating your production service. item = gis.content.get('ItemID') #get the FeatureLayerCollection flc = FeatureLayerCollection.fromitem(item) #define the update dictionary update_dict = { "fields": [ { "name": "fieldx", "domain": { "type": "codedValue", "name": "Signs", "codedValues": [ { "name": "Option A", "code": "type_a" }, { "name": "Option B", "code": "type_b" }, { "name": "Option C", "code": "type_c" } ] } } ] } #update the featureservice definition flc.manager.update_definition(update_dict)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Please let us know if it works. ... View more

Thank you for the feedback. This widget only saves the operation layers at the moment. I did have a quick investigate for the basemap function before. It may be not that hard to store the basemap in the session, but it is a bit tricky when you restore it and try to co-ordinate with the basemap widget. I'll look into this function in the future should a business case arises. ... View more

Checkout this customized SaveSession widget: SaveSession that supports heavy map layers and imagery Layers  ... View more

Don't worry about pasting the code. I just extracted some code from my work and created a customized SaveSession Widget, and you should be able to use it to replace the original one, please check it out:  SaveSession that supports heavy map layers and imagery Layers  ... View more

First, you need make sure every street is one feature (one polyline, you can merge multiple lines into one polyline using GIS tools ) Then you can use python to iterate the feature class and read the geometry of each feature, when you have access to the geometry, you can read the  path and points in each feature. You should be able to do it using Python API, or ArcPy environment in one of the desktop product, say ArcMap, ArcCatalog or ArcGIS Pro. ArcPy maybe easier and more straight-forward as its Ployline class provides firstPoint and lastPoint properties. ArcPy Polyline Class help: https://pro.arcgis.com/en/pro-app/arcpy/classes/polyline.htm arcgis.geometry module: https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.geometry.html?highlight=geometry#module-arcgis.geometry ... View more

Hi Kevin I had a quick debug into your code, and I can see where the code stops Please declare the array here in the Widget.js : Good luck. ... View more

Hi John, Hope you've figured it out. otherwise please see if my latest response to Kevin MacLeod can help you out. Cheers   ... View more

Hi Kevin Please try the following steps. 1. Declare an array to store the added layers (layer IDs). because I have the Add Data widget, so there will be added layers to the default web map. in different sessions the user may have very different layers added to the map, so I need to remove all these added layers in the current session before I load a new session. I don't reload the webmap, because this will cause failure in all loaded widgets since they are tied to the current map object. 2. Replace the loadSession function with the following one in Widgets.js: loadSession: function (sessionToLoad) { // zoom the map if (sessionToLoad.extent) { extentToLoad = new Extent(sessionToLoad.extent); this.map.setExtent(extentToLoad).then(function () { console.log('SaveSession :: loadSession :: new extent = ', extentToLoad); }, function () { var msg = new Message({ message: string.substitute("An error occurred zooming to the ${name} map.", sessionToLoad), type: 'error' }); }); } //remove the layers added in the current map theMap = this.map; if (this.addedLayers.length>0){ this.addedLayers.forEach(function(layerId){ lyr = theMap.getLayer(layerId); theMap.removeLayer(lyr); }); } //clear the previously added layerIDs this.addedLayers=[]; // toggle layers if (sessionToLoad.layers) { //this.setLayersOnMap(sessionToLoad.layers); theWidget = this;//save "this" context in a local variable, in case the context changes in the callbacks. //make sure all the added layers are loaded before retrieving the new layerInfos, //replace the current layerInfos with the new layerInfos this.mySetLayersOnMap(sessionToLoad.layers).then(function(flags){ var newLayerInfos = LayerInfos.createInstance(theWidget.map); LayerInfos.setInstance(theWidget.map,newLayerInfos); //change layer visisbilities in the layerlist theWidget.layerInfosRestoreState(sessionToLoad.layerOptions); //this will make sure the layerlist always shows the correct layers and sublayers of the added layer theWidget.refreshLayerList(newLayerInfos); }); } // fire custom event topic.publish("SaveSession/SessionLoaded", sessionToLoad); console.log('SaveSession :: loadSession :: session = ', sessionToLoad); }, Sorry, I've lost all the formatting of the code here, please reformat it in your Javascript editor, then it should look much better and less scary 3. Paste all the supporting functions after the loadSession function. /** * restore the layer visisbilities * @param array of layer visisbilities * by simoxu */ layerInfosRestoreState: function (layerOptions) { var layerInfosObj = LayerInfos.getInstanceSync(); var layers = {}; if (layerOptions) { for (var key in layerOptions) { if (layerOptions.hasOwnProperty(key)) { var layer = layerOptions[key]; var visible = false; if ("undefined" === typeof layer.visible) { visible = layer.selected;//turn .selected to .visible } else { visible = layer.visible;//keep: layers[key].visible } layers[key] = { visible: visible }; } } layerInfosObj.restoreState({ layerOptions: layers }); } else { //keep current visibility } }, refreshLayerList: function(operLayerInfos) { var wman = this.widgetManager; if (wman) { layerListWidget = wman.getWidgetByLabel("Layer List"); if (layerListWidget) { layerListWidget.operLayerInfos = operLayerInfos; layerListWidget._refresh(); } } }, mySetLayersOnMap: function (settings) { //var allDynamicLayersReadyDefs = new Deferred(); var layersLoadedDefs = []; //var layerLoadedFlag; var layer; var len = settings.length; array.forEach(settings, lang.hitch(this,function(layerSettings,index) { var layer layer = this.map.getLayer(layerSettings.id); if (!layer) { layer = this.addLayerToMap(layerSettings); layer._layerLoadedFlag = new Deferred(); layersLoadedDefs.push(layer._layerLoadedFlag); //record the layers added on top the intial Web Map this.addedLayers.push(layerSettings.id); var theMap = this.map; var theOrder = layerSettings.order; layer.on("load",function(e){ e.layer._layerLoadedFlag.resolve("loaded!"); //set the order again after the layer loaded theMap.reorderLayer(e.layer,theOrder); delete e.layer._layerLoadedFlag;//it seems that deleting the temprary property here won't affect the Deferred. by simoxu }); } else { this.map.reorderLayer(layer,layerSettings.order) } })); return all(layersLoadedDefs).then(function(flags){ return flags; }); }, 4. Optional. if you want it to support imagery layers, you need replace the addLayerToMap function withe the following one: /** * create a new map layer with the given settings * @param {Object} layerSettings settings for the layer * @return {Object} layer oject */ addLayerToMap: function (layerSettings) { console.log('SaveSession :: addLayerToMap :: adding layer = ', layerSettings); var layer, options; switch (layerSettings.type) { case "ArcGISDynamicMapServiceLayer": options = lang.clone(layerSettings.options); options.imageParameters = new ImageParameters(); lang.mixin(options.imageParameters, layerSettings.options.imageParameters); layer = new ArcGISDynamicMapServiceLayer(layerSettings.url, options); //layer = new ArcGISDynamicMapServiceLayer(layerSettings.url); console.log('SaveSession :: addLayerToMap :: created ArcGISDynamicMapServiceLayer layer = ', layer); break; case "FeatureLayer": layer = new FeatureLayer(layerSettings.url, layerSettings.options); console.log('SaveSession :: addLayerToMap :: created Feature layer = ', layer); break; case "ArcGISTiledMapServiceLayer": layer = new ArcGISTiledMapServiceLayer(layerSettings.url, layerSettings.options); console.log('SaveSession :: addLayerToMap :: created ArcGISTiledMapServiceLayer layer = ', layer); break; case "ArcGISImageServiceLayer": layer = new ArcGISImageServiceLayer(layerSettings.url,layerSettings.options) break; default: console.log('SaveSession :: addLayerToMap :: unsupported layer type = ', layerSettings.type); break; } if (layerSettings.name) { layer.name = layerSettings.name; } // The bottom most layer has an index of 0. this.map.addLayer(layer, layerSettings.order); console.log('SaveSession :: addLayerToMap :: created layer for ', layer.id, ' using settings = ', layerSettings); return layer; }, Because I changed this widget quite a bit to suit my particular application needs, It might not be a perfect fit in your application. But,  I hope this at least can provide some clue to help you to find a better solution if it does not work straight away. Good luck. Simo ... View more

With ESRI Vector Basemap, this restriction should be lifted. I haven't tested anything, but I feel it should not be a problem (pixelation) when you have the data loaded in the browser, theoretically speaking. ... View more