西安 网站托管,微信手机版网站建设,ip切换工具,监控企业网站模板一、qt版本和QtLocation模块版本确认
如果qt版本过低的话是没有QtLocation模块的#xff0c;我的版本如下 构建工具版本如下
二、qml代码编写
1、工程中添加模块
首先在工程中添加模块quickwidgets positioning location
2、添加资源文件 3、在资源文件中添加qml文件 …一、qt版本和QtLocation模块版本确认
如果qt版本过低的话是没有QtLocation模块的我的版本如下 构建工具版本如下
二、qml代码编写
1、工程中添加模块
首先在工程中添加模块quickwidgets positioning location
2、添加资源文件 3、在资源文件中添加qml文件 4、qml代码编写
import QtQuick
import QtLocation
import QtPositioning
import QtQuick.Controls
Rectangle {width: parentheight: parentvisible: trueControl{id:labelcppobjectName: labelcppfont.pointSize: 38property real latitudeSave: 22.64018property real longitudeSave: 113.92746//cpp调用这个函数function getText(){return map.center zoom map.zoomLevel.toFixed(3) min map.minimumZoomLevel max map.maximumZoomLevel}function setCoordinate(latitude,longitude){latitudeSave latitudelongitudeSave longitudemap.center.latitude latitudemap.center.longitude longitudemap.update()console.log(latitudelatitude longitudelongitude);}}Plugin {id: mapPluginname: osm
// PluginParameter { name: osm.mapping.providersrepository.address; value: http://www.mywebsite.com/osm_repository }
// PluginParameter { name: osm.mapping.highdpi_tiles; value: true }}Map {id: mapanchors.fill: parentplugin: mapPlugincenter: QtPositioning.coordinate(22.64018, 113.92746) // OslozoomLevel: 14property geoCoordinate startCentroidPinchHandler {id: pinchtarget: nullonActiveChanged: if (active) {map.startCentroid map.toCoordinate(pinch.centroid.position, false)}onScaleChanged: (delta) {map.zoomLevel Math.log2(delta)map.alignCoordinateToPoint(map.startCentroid, pinch.centroid.position)}onRotationChanged: (delta) {map.bearing - deltamap.alignCoordinateToPoint(map.startCentroid, pinch.centroid.position)}grabPermissions: PointerHandler.TakeOverForbidden}WheelHandler {id: wheel// workaround for QTBUG-87646 / QTBUG-112394 / QTBUG-112432:// Magic Mouse pretends to be a trackpad but doesnt work with PinchHandler// and we dont yet distinguish mice and trackpads on Wayland eitheracceptedDevices: Qt.platform.pluginName cocoa || Qt.platform.pluginName wayland? PointerDevice.Mouse | PointerDevice.TouchPad: PointerDevice.MouserotationScale: 1/120property: zoomLevel}DragHandler {id: dragtarget: nullonTranslationChanged: (delta) map.pan(-delta.x, -delta.y)}Shortcut {enabled: map.zoomLevel map.maximumZoomLevelsequence: StandardKey.ZoomInonActivated: map.zoomLevel Math.round(map.zoomLevel 1)}Shortcut {enabled: map.zoomLevel map.minimumZoomLevelsequence: StandardKey.ZoomOutonActivated: map.zoomLevel Math.round(map.zoomLevel - 1)}Component.onCompleted: {map.addMapItem(circle)}}MapCircle {id: circlecenter: QtPositioning.coordinate(labelcpp.latitudeSave,labelcpp.longitudeSave)radius: 50border.width: 5//鼠标按住后可移动MouseArea {anchors.fill: parentdrag.target: parent}}
}
Control是用来和c进行数据交互的通过setCoordinate发送坐标在地图上定点getText是用来获取地图的中点和地图缩放等级的。
5、和c进行交互发送坐标点
void MainWindow::on_pushButton_clicked()
{QQuickItem *root ui-quickWidget-rootObject();//拿到所有对象的列表auto labelqml root-findChildQObject*(labelcpp);//名字要与main.qml中的 objectName: labelcpp 相同QVariant ret;QMetaObject::invokeMethod(labelqml, setCoordinate, Q_ARG(QVariant, 22.65599), Q_ARG(QVariant, 113.92576));qDebug() ret.toString();
}三、效果展示
