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ArcGIS Runtime SDK for Qt

Open map (URL)

Sample Viewer View Sample on GitHub

Display a web map.

Use case

For displaying web maps stored on ArcGIS Online (e.g. soil survey results, as demonstrated in this sample).

How to use the sample

A web map can be selected from the drop-down list. On selection the web map displays in the map view.

How it works

  1. Create a URL comprised of the Organization's Portal URL and the webmap of interest.
  2. Create a Map using the URL.
  3. Set the map to the MapView.

Relevant API

  • Map
  • MapView

Additional information

Mobile map packages can also include address locators and geometric networks. For an example of this, see the "Mobile Map Search and Route Sample".

Tags

portal item, web map

Sample Code

import QtQuick 2.6
import QtGraphicalEffects 1.0
import Esri.ArcGISRuntime 100.9

Rectangle {
    width: 800
    height: 600
    
    // Create a MapView
    MapView {
        id: mapView
        anchors.fill: parent
        // Create an initial Map with the Imagery basemap
        Map {
            BasemapImagery {}
        }
    }

    // Create a list model with information about different webmaps
    ListModel {
        id: webmapListModel
        ListElement { itemTitle: "Population Pressure"; imageUrl: "qrc:/Samples/Maps/OpenMapUrl/population.png"; itemId: "392451c381ad4109bf04f7bd442bc038"}
        ListElement { itemTitle: "USA Tapestry Segmentation"; imageUrl: "qrc:/Samples/Maps/OpenMapUrl/Tapestry.png"; itemId: "01f052c8995e4b9e889d73c3e210ebe3"}
        ListElement { itemTitle: "Geology of United States"; imageUrl: "qrc:/Samples/Maps/OpenMapUrl/geology.jpg"; itemId: "92ad152b9da94dee89b9e387dfe21acd"}
    }

    // Create a delegate for how the webmaps display in the view
    Component {
        id: webmapsDelegate
        Item {
            width: parent.width
            height: 65

            Row {
                spacing: 10
                Image {
                    source: imageUrl
                    width: 100
                    height: 65
                }
                Row {
                    anchors.verticalCenter: parent.verticalCenter
                    Text {
                        width: 100
                        text: itemTitle
                        wrapMode: Text.WordWrap
                    }
                }
            }
            MouseArea {
                anchors.fill: parent
                // When an item in the list view is clicked
                onClicked: {
                    webmapsListView.currentIndex = index

                    //! [Construct map from a webmap url]
                    // construct the webmap Url using the itemId
                    const organizationPortalUrl = "https://arcgis.com/sharing/rest/content/items/";
                    const webmapUrl = organizationPortalUrl + itemId;
                    // Create a new map and assign it the initUrl
                    const newMap = ArcGISRuntimeEnvironment.createObject("Map", {initUrl: webmapUrl});
                    //! [Construct map from a webmap url]

                    // Set the map to the MapView
                    mapView.map = newMap;
                    mapPickerWindow.visible = false;
                }
            }
        }
    }

    // Create a window to display the different webmaps that can be selected
    Rectangle {
        id: mapPickerWindow
        anchors.fill: parent
        color: "transparent"

        RadialGradient {
            anchors.fill: parent
            opacity: 0.7
            gradient: Gradient {
                GradientStop { position: 0.0; color: "lightgrey" }
                GradientStop { position: 0.7; color: "black" }
            }
        }

        MouseArea {
            anchors.fill: parent
            onClicked: mouse.accepted = true
            onWheel: wheel.accepted = true
        }

        Rectangle {
            anchors.centerIn: parent
            width: 250
            height: 200
            color: "lightgrey"
            opacity: .8
            radius: 5
            border {
                color: "#4D4D4D"
                width: 1
            }

            // Create a list view to display the webmaps
            ListView {
                id: webmapsListView
                anchors {
                    fill: parent
                    margins: 10
                }
                // Assign the model to the list model of webmaps
                model: webmapListModel
                // Assign the delegate to the delegate created above
                delegate: webmapsDelegate
                spacing: 10
                clip: true
                highlightFollowsCurrentItem: true
                highlight: Rectangle { color: "lightsteelblue"; radius: 5 }
                focus: true
            }
        }
    }

    // Create a button to show the map picker window
    Rectangle {
        id: switchButton
        property bool pressed: false
        visible: !mapPickerWindow.visible
        anchors {
            right: parent.right
            bottom: parent.bottom
            rightMargin: 20
            bottomMargin: 40
        }

        width: 45
        height: width
        color: pressed ? "#959595" : "#D6D6D6"
        radius: 100
        border {
            color: "#585858"
            width: 1
        }

        Image {
            anchors.centerIn: parent
            width: 35
            height: width
            source: "qrc:/Samples/Maps/OpenMapUrl/SwitchMap.png"
        }

        MouseArea {
            anchors.fill: parent
            onPressed: switchButton.pressed = true
            onReleased: switchButton.pressed = false
            onClicked: {
                // Show the add window when it is clicked
                mapPickerWindow.visible = true;
            }
        }
    }
}