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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
gesture.enabled: true
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" }
gesture.enabled: false
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
*/
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