Latest Contributions by WhereMatters

We are trying to build a widget that needs an address location to start with and then it performs actions like display nearby features and do other business. We thought of adding an address search box to the widget, but feel this is unnecessary as AppBuilder already provides a Geocoder widget. We see that the AppBuilder framework already provides a recommended way of communicating between widgets by publishing and subscribing to data. However, we see that the Geocoder widget does not broadcast or publish any data that other widgets can listen to, for e.g., messages like ‘no results found’, ‘list of results’, ‘selected candidate’ etc. We are looking at other ways of tapping into the Geocoder widget's actions. One of the approach we are trying, is to use dojo's 'aspect.after' method which waits until specified function of target widget completes the execution(here target is Geocoder widget) and then executes the advisingFunction (in the custom widget). For this to work, we need the instance of Geocoder widget, which we can get by using 'this.widgetManager.getWidgetsByName("Geocoder")’ method, where ‘Geocoder’ is the widget's name From the list of loaded widgets array, using the 'Geocoder' label First question is, which is the correct way of accessing another widget? Here is some pseudocode for what we are trying to do, // get the instance of Geocoder widget in your custom widget var geocoderWidget = this.widgetManager.getWidgetsByName("Geocoder"); // wait for Geocoder widget's 'showResults' method which is called when user selects an address from list of results to plot on map aspect.after(geocoderWidget[0], "showResults", function (param) { //write code here to read the location of user selected address and use it further for your business }, true); Our second question is that, is this a recommended way of hooking into another widget's actions and perform other stuff in your custom widget? Any pointers from the community will be very helpful. Thanks Anand ... View more

This must be an easy one, but i am having a hard time with this. How do i read the linear distance units of a feature layer or a dynamic map service using the javascript API? for e.g., wkid 4326 it is degrees, 102100 it is meters and for some it is feet etc., what about spatial references which have only a WKT (custom) and no WKID? i  need to display the linear units of a layer (feature/dynamic) programatically to show the units in which the areas and lengths are being displayed in a popup. ... View more

What is the correct way to project an existing shapefile that has a .prj file associated with it containing the following information into any other coordinate system for e.g. web mercator?   GEOGCS["HRAP_Sphere",DATUM["<custom>",SPHEROID["<custom>",6371200.0,0.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]   A sample shapefile is attached. ... View more