Latest Contributions by FreddieGibson

Could you provide a small sample to show what you're doing in your application? I tested these coordinate systems on my end and everything appears to be working fine. World Imagery (3857) http://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer World Street Map (3857) http://services.arcgisonline.com/arcgis/rest/services/World_Street_Map/MapServer World Topo Map (3857) http://services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer Esri Imagery World 2D (4326) ** Extended Support ** http://services.arcgisonline.com/arcgis/rest/services/ESRI_Imagery_World_2D/MapServer Esri StreetMap World 2D (4326) ** Extended Support ** http://services.arcgisonline.com/arcgis/rest/services/ESRI_StreetMap_World_2D/MapServer ** Code I used to test ** XAML <Window x:Class="GallMap.MainWindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013"   Title="Gall Stereographic Map"   Height="350"   Width="800">     <Grid>         <Grid.Resources>             <Style TargetType="{x:Type Border}">                 <Setter Property="Margin" Value="10" />                 <Setter Property="Padding" Value="5" />                 <Setter Property="Background" Value="White" />                 <Setter Property="BorderBrush" Value="Black" />                 <Setter Property="BorderThickness" Value="2" />             </Style>             <Style TargetType="{x:Type TextBlock}">                 <Setter Property="FontSize" Value="20" />                 <Setter Property="FontWeight" Value="Bold" />                 <Setter Property="Background" Value="White" />                 <Setter Property="Foreground" Value="Black" />                 <Setter Property="TextAlignment" Value="Center"/>             </Style>         </Grid.Resources>         <Grid.ColumnDefinitions>             <ColumnDefinition />             <ColumnDefinition />         </Grid.ColumnDefinitions>         <esri:MapView x:Name="MyMapView1" Margin="3" />         <esri:MapView x:Name="MyMapView2" Grid.Column="1" Margin="3"/>                 <Border VerticalAlignment="Bottom" HorizontalAlignment="Center" Grid.ColumnSpan="2">             <Border.Effect>                 <DropShadowEffect />             </Border.Effect>                         <StackPanel Orientation="Horizontal">                 <StackPanel.Resources>                     <Style TargetType="{x:Type RadioButton}">                         <Setter Property="Margin" Value="4,0,4,0" />                     </Style>                 </StackPanel.Resources>                 <RadioButton Content="World Imagery" Checked="ToggleButton_OnChecked"/>                 <RadioButton Content="World Street"  Checked="ToggleButton_OnChecked" />                 <RadioButton Content="World Topo"  Checked="ToggleButton_OnChecked" IsChecked="True" />                 <RadioButton Content="World Imagery 2D"  Checked="ToggleButton_OnChecked" />                 <RadioButton Content="World Street 2D"  Checked="ToggleButton_OnChecked" />             </StackPanel>         </Border>                 <Border HorizontalAlignment="Left" VerticalAlignment="Top">             <Border.Effect>                 <DropShadowEffect />             </Border.Effect>                         <TextBlock Text="{Binding ElementName=MyMapView1, Path=SpatialReference.Wkid, StringFormat=Map WKID: {0}}" Padding="5" />         </Border>         <Border HorizontalAlignment="Left" VerticalAlignment="Top" Grid.Column="1">             <Border.Effect>                 <DropShadowEffect />             </Border.Effect>             <TextBlock Text="{Binding ElementName=MyMapView2, Path=SpatialReference.Wkid, StringFormat=Map WKID: {0}}" Padding="5" />         </Border>     </Grid> </Window> XAML.cs using Esri.ArcGISRuntime.Controls; using Esri.ArcGISRuntime.Geometry; using Esri.ArcGISRuntime.Layers; using System; using System.Collections.Generic; using System.Windows; using System.Windows.Controls; namespace GallMap {     public partial class MainWindow : Window     {         private readonly Dictionary<string, string> m_urls = new Dictionary<string, string>         {             {"World Imagery", "http://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer"},             {"World Topo", "http://services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer"},             {"World Street", "http://services.arcgisonline.com/arcgis/rest/services/World_Street_Map/MapServer"},             {"World Imagery 2D", "http://services.arcgisonline.com/arcgis/rest/services/ESRI_Imagery_World_2D/MapServer"},             {"World Street 2D", "http://services.arcgisonline.com/arcgis/rest/services/ESRI_StreetMap_World_2D/MapServer"}         };         public MainWindow()         {             InitializeComponent();         }         private void ToggleButton_OnChecked(object sender, RoutedEventArgs e)         {             var tag = (sender as RadioButton).Content.ToString();             var mapviews = new[] {MyMapView1, MyMapView2};             foreach (var mapview in mapviews)             {                 var layer = new ArcGISDynamicMapServiceLayer(new Uri(m_urls[tag]));                                 var wkid = Array.IndexOf(mapviews, mapview) == 0 ? 53016 : 54016;                 var map = new Map                 {                     SpatialReference = SpatialReference.Create(wkid),                     InitialViewpoint = new Viewpoint(new Envelope(-141, 7, -51, 78, SpatialReference.Create(4326)))                 };                                 map.Layers.Add(layer);                 mapview.Map = map;             }         }     } } ... 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I believe your problem is that you're using ArcGISTiledMapServiceLayer for your basemap instead of ArcGISDynamicMapServiceLayer. I would think you'd need to use the latter because you're needing your basemap to be projected on the server from 3857 to 4269. I've included a copy of the project I tested this with. You'll see that if you change line 33 to ArcGISTiledMapServerLayer that you can replicate your issue, which is that when the feature layer is added and the coordinate for the map is changed to 4269 the basemap no longer renders. Step One. Click the Add Shapefile button to add the shapefile to the map. This will set the coordinate system of the map to 4269. Step Two. Click the Add Basemap tool to insert the basemap into the map. Note that if you use ArcGISDynamicMapServerLayer that the server will handle projecting the basemap from 3857 to 4269 and it will still be visible in the map. If you use ArcGISTiledMapServiceLayer the layer will not project the basemap. As a result the basemap will not be visible. *** Below is the relevant logic in case you don't want to download the attachment *** private async void ButtonBase_OnClick(object sender, RoutedEventArgs e)         {             string tag = (sender as Button).Tag.ToString();             switch (tag)             {                 case "basemap":                     var basemap = new ArcGISDynamicMapServiceLayer(new Uri("http://services.arcgisonline.com/ArcGIS/rest/services/Ocean_Basemap/MapServer"));                     MyMapView.Map.Layers.Insert(0, basemap);                     break;                 case "shapefile":                     var table = await ShapefileTable.OpenAsync(_shpPath);                     var layer = new FeatureLayer                     {                         ID = table.Name,                         DisplayName = table.Name,                         FeatureTable = table                     };                     MyMapView.Map.Layers.Add(layer);                     break;                 default:                     MyMapView.Map = new Map();                     break;             }         } ... View more

In ArcGIS this could be done in a number of ways. You could review these options to see if they'll work with your workflow. 1. Call the Add XY Coordinates (Data Management) tool after setting the Output Coordinate System environment variable to a system that uses lat/long values, such as WGS1984. Add XY Coordinates (Data Management) http://desktop.arcgis.com/en/desktop/latest/tools/data-management-toolbox/add-xy-coordinates.htm http://resources.arcgis.com/en/help/main/10.2/index.html#/Add_XY_Coordinates/001700000032000000/ 2. Call the Project Data Management tool to project the feature class to WGS1984. Then you could calculate the xy coordinates of the points in Lat/Long or parse them in python. Project (Data Management) http://desktop.arcgis.com/en/desktop/latest/tools/data-management-toolbox/project.htm http://resources.arcgis.com/en/help/main/10.2/index.html#/Project/00170000007m000000/http://desktop.arcgis.com/en/desktop/latest/tools/data-management-toolbox/project.htm 3. Use a cursor to project the records within a feature class to WGS1984. This would return you the lat/longs in a tuple if you use the Shape@XY token SearchCursor (arcpy.da) http://resources.arcgis.com/en/help/main/10.2/index.html#//018w00000011000000http://desktop.arcgis.com/en/desktop/latest/analyze/arcpy-data-access/searchcursor-class.htm Reading Geometries http://resources.arcgis.com/en/help/main/10.2/index.html#//002z0000001t000000http://desktop.arcgis.com/en/desktop/latest/analyze/python/reading-geometries.htm 4. Create a point object and use its projectAs method to project the point to WGS1984, after which you can parse the X and Y values. PointGeometry https://pro.arcgis.com/en/pro-app/arcpy/classes/point.htmhttp://desktop.arcgis.com/en/desktop/latest/analyze/arcpy-classes/pointgeometry.htm 5. NON ESRI : If the data comes in as shapefiles you can use osgeo.ogr to open it, parse the coordinates, and then use pyproj to project it to the needed system. ... View more