Load an ArcGIS tiled layer from a URL.
Use case
An ArcGISTiledLayer consumes raster tiles provided by an ArcGIS service or a tile package (.tpk & .tpkx). Dividing a raster into tiles provides the user with relevant tiles and level of detail while panning and zooming, allowing for rapid map visualization and navigation. For example, say you wanted an application with a map containing all museums in your city so that you could share this with tourists. Since only the museums would need to support being identifiable or queryable within the app, all other contextual information required to orient and direct the tourists could be sourced from a single ArcGIS tiled layer, leading to faster performance and minimizing the time to load the map.
How to use the sample
Launch the app to view the "World Topographic Map" tile layer as the basemap.
How it works
- Create a
ArcGISTiledLayerobject from a URL. - Create a
Basemappassing in the tiled layer. - Create a
Mapwith the basemap. - Set the map on the
MapView.
Relevant API
- ArcGISTiledLayer
- Basemap
- Map
- MapView
About the data
The application utilizes the "World Topographic Map" tile layer. This presents a simple yet powerful illustration of adding visualization context to a basemap through the use of an ArcGIS tiled layer.
Additional information
An ArcGISTiledLayer can also be added to the Map as a layer, but it's best practice to use as a basemap since its purpose is to provide geographical context. ArcGIS tiled layers do not support reprojection, query, select, identify, or editing.
Tags
basemap, layers, raster tiles, tiled layer, visualization
Sample Code
// [WriteFile Name=ArcGISTiledLayerUrl, Category=Layers]
// [Legal]
// Copyright 2016 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.
// [Legal]
import QtQuick
import Esri.ArcGISRuntime
Rectangle {
width: 800
height: 600
// Create the MapView
MapView {
anchors.fill: parent
Component.onCompleted: {
// Set the focus on MapView to initially enable keyboard navigation
forceActiveFocus();
}
// Nest the Map as a child of the MapView
Map {
// Nest the Basemap to add it as the Map's Basemap
//! [display tiled layer from tiled map service]
Basemap {
// Nest the ArcGISTiledLayer to add it as one of the Basemap's baseLayers
ArcGISTiledLayer {
url: "https://services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer"
}
}
//! [display tiled layer from tiled map service]
}
}
}