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Convert features into graphics to show them with mil2525d symbols.
Use case
A dictionary renderer uses a style file along with a rule engine to display advanced symbology.
This is useful for displaying features using precise military symbology.
How to use the sample
Pan and zoom around the map. Observe the displayed military symbology on the map.
How it works
Create a Geodatabase using Geodatabase(geodatabasePath).
Load the geodatabase asynchronously using Geodatabase.LoadAsync().
Instantiate a SymbolDicitonary using SymbolDictionary(specificationType).
specificationType will be the mil2525d.stylx file.
Load the symbol dictionary asynchronously using DictionarySymbol.LoadAsync().
Wait for geodatabase to completely load.
Cycle through each GeodatabaseFeatureTable from the geodatabase using Geodatabase.GeodatabaseFeatureTables.
Create a FeatureLayer from each table within the geodatabase using FeatureLayer(GeodatabaseFeatureTable).
Load the feature layer asynchronously with FeatureLayer.LoadAsync().
Wait for each layer to load.
After the last layer has loaded, then create a new Envelope from a union of the extents of all layers.
Set the envelope to be the Viewpoint of the map view using MapView.SetViewpoint(new Viewpoint(Envelope)).
Add the feature layer to map using Map.OperationalLayers.Add(FeatureLayer).
Create DictionaryRenderer(SymbolDictionary) and attach to the feature layer.
Relevant API
DictionaryRenderer
SymbolDictionary
Offline data
This sample downloads the following items from ArcGIS Online automatically:
mil2525d.stylx - A stylx file for building custom applications that incorporate the MIL-STD-2525D symbol dictionary.
militaryoverlay.geodatabase.zip - This is a mobile geodatabase created from the Military Overlay template for use in ArcGIS Maps SDK for Native Apps samples
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// Copyright 2017 Esri.//// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific// language governing permissions and limitations under the License.using ArcGIS.Samples.Managers;
using Esri.ArcGISRuntime.Data;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Symbology;
using System;
using System.Threading.Tasks;
using System.Windows;
namespaceArcGIS.WPF.Samples.FeatureLayerDictionaryRenderer{
[ArcGIS.Samples.Shared.Attributes.Sample(
name: "Dictionary renderer with feature layer",
category: "Layers",
description: "Convert features into graphics to show them with mil2525d symbols.",
instructions: "Pan and zoom around the map. Observe the displayed military symbology on the map.",
tags: new[] { "military", "symbol" })]
[ArcGIS.Samples.Shared.Attributes.OfflineData("c78b149a1d52414682c86a5feeb13d30", "e0d41b4b409a49a5a7ba11939d8535dc")]
publicpartialclassFeatureLayerDictionaryRenderer {
publicFeatureLayerDictionaryRenderer() {
InitializeComponent();
// Setup the control references and execute initialization _ = Initialize();
}
privateasync Task Initialize() {
// Create new Map with basemap Map myMap = new Map(BasemapStyle.ArcGISTopographic);
// Provide Map to the MapView MyMapView.Map = myMap;
// Get the path to the geodatabasestring geodbFilePath = GetGeodatabasePath();
// Load the geodatabase from local storage Geodatabase baseGeodatabase = await Geodatabase.OpenAsync(geodbFilePath);
// Get the path to the symbol dictionarystring symbolFilepath = GetStyleDictionaryPath();
try {
// Load the symbol dictionary from local storage DictionarySymbolStyle symbolStyle = await DictionarySymbolStyle.CreateFromFileAsync(symbolFilepath);
// Add geodatabase features to the map, using the defined symbologyforeach (FeatureTable table in baseGeodatabase.GeodatabaseFeatureTables)
{
// Load the tableawait table.LoadAsync();
// Create the feature layer from the table FeatureLayer myLayer = new FeatureLayer(table);
// Load the layerawait myLayer.LoadAsync();
// Create a Dictionary Renderer using the DictionarySymbolStyle DictionaryRenderer dictRenderer = new DictionaryRenderer(symbolStyle);
// Apply the dictionary renderer to the layer myLayer.Renderer = dictRenderer;
// Add the layer to the map myMap.OperationalLayers.Add(myLayer);
}
// Create geometry for the center of the map MapPoint centerGeometry = new MapPoint(-13549402.587055, 4397264.96879385, SpatialReference.Create(3857));
// Set the map's viewpoint to highlight the desired content MyMapView.SetViewpoint(new Viewpoint(centerGeometry, 201555));
}
catch (Exception e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
// Get the file path for the style dictionaryprivatestaticstringGetStyleDictionaryPath() {
return DataManager.GetDataFolder("c78b149a1d52414682c86a5feeb13d30", "mil2525d.stylx");
}
// Get the file path for the geodatabaseprivatestaticstringGetGeodatabasePath() {
return DataManager.GetDataFolder("e0d41b4b409a49a5a7ba11939d8535dc", "militaryoverlay.geodatabase");
}
}
}