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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
++
++ /*!
++ \page location-plugin-itemsoverlay.html
++ \title Qt Location Items Overlay Plugin
++ \ingroup QtLocation-plugins
++
++ \brief Provides an empty map intended to be used as background for an overlay layers for map items.
++
++ \section1 Overview
++
++ This geo services plugin is a special plugin providing only an empty map.
++ This plugin provides no services, and is intended to be used in those cases where a \l Map element should
++ only show the added map items.
++
++ The Items Overlay geo services plugin can be loaded by using the plugin key "itemsoverlay".
++
++ \section1 Example usage
++
++ The following snippet shows how a Map using this plugin can be added as an overlay to display
++ anti-aliased map items.
++ Note that for such an overlay Map to be transparent, it is also necessary to set its color to
++ a transparent one, such as \b transparent, like in the example.
++
++ \qml
++ Window {
++ id: win
++ visible: true
++ width: 640
++ height: 640
++
++ Map {
++ id: mapBase
++ anchors.fill: parent
++ plugin: Plugin { name: "osm" }
++ center: QtPositioning.coordinate(45,10)
++ zoomLevel: 4
++ z: parent.z + 1
++ }
++
++ Map {
++ id: mapOverlay
++ anchors.fill: parent
++ plugin: Plugin { name: "itemsoverlay" }
++ center: mapBase.center
++ color: 'transparent' // Necessary to make this map transparent
++ minimumFieldOfView: mapBase.minimumFieldOfView
++ maximumFieldOfView: mapBase.maximumFieldOfView
++ minimumTilt: mapBase.minimumTilt
++ maximumTilt: mapBase.maximumTilt
++ minimumZoomLevel: mapBase.minimumZoomLevel
++ maximumZoomLevel: mapBase.maximumZoomLevel
++ zoomLevel: mapBase.zoomLevel
++ tilt: mapBase.tilt;
++ bearing: mapBase.bearing
++ fieldOfView: mapBase.fieldOfView
++ z: mapBase.z + 1
++
++ MapCircle {
++ id: circle
++ center: QtPositioning.coordinate(44, 10)
++ radius: 200000
++ border.width: 5
++
++ MouseArea {
++ anchors.fill: parent
++ drag.target: parent
++ }
++ }
++
++ // The code below enables SSAA
++ layer.enabled: true
++ layer.smooth: true
++ property int w : mapOverlay.width
++ property int h : mapOverlay.height
++ property int pr: Screen.devicePixelRatio
++ layer.textureSize: Qt.size(w * 2 * pr, h * 2 * pr)
++ }
++ }
++ \endqml
++
++ */