File indexing completed on 2024-11-10 03:33:24
0001 // SPDX-License-Identifier: LGPL-2.1-or-later 0002 // 0003 // SPDX-FileCopyrightText: 2012 Illya Kovalevskyy <illya.kovalevskyy@gmail.com> 0004 // 0005 0006 #include "vehicletracking.h" 0007 0008 #include <QApplication> 0009 #include <QThread> 0010 #include <QTimer> 0011 #include <qmath.h> 0012 #include <QDebug> 0013 #include <QVBoxLayout> 0014 0015 #include <marble/MarbleWidget.h> 0016 #include <marble/MarbleGlobal.h> 0017 #include <marble/GeoDataDocument.h> 0018 #include <marble/GeoDataLineString.h> 0019 #include <marble/GeoDataTreeModel.h> 0020 #include <marble/MarbleModel.h> 0021 0022 0023 using namespace Marble; 0024 0025 CarWorker::CarWorker(const GeoDataCoordinates &city, qreal radius, qreal speed) : 0026 QObject(), 0027 m_timer(new QTimer(this)), 0028 m_city(city), 0029 m_radius(radius), 0030 m_speed(speed), 0031 m_alpha(0.0) 0032 {} 0033 0034 void CarWorker::startWork() 0035 { 0036 m_timer->setInterval(0); 0037 connect(m_timer, SIGNAL(timeout()), this, SLOT(iterate())); 0038 m_timer->start(); 0039 } 0040 0041 void CarWorker::iterate() 0042 { 0043 qreal lon = m_city.longitude(GeoDataCoordinates::Degree) + m_radius * qCos(m_alpha * DEG2RAD); 0044 qreal lat = m_city.latitude(GeoDataCoordinates::Degree) + m_radius * qSin(m_alpha * DEG2RAD); 0045 0046 GeoDataCoordinates coord(lon, lat, 0.0, GeoDataCoordinates::Degree); 0047 emit coordinatesChanged(coord); 0048 0049 m_alpha += m_speed; 0050 } 0051 0052 void CarWorker::finishWork() 0053 { 0054 m_timer->stop(); 0055 } 0056 0057 Window::Window(QWidget *parent) : 0058 QWidget(parent), 0059 m_marbleWidget(new MarbleWidget) 0060 { 0061 QVBoxLayout *layout = new QVBoxLayout(this); 0062 layout->addWidget(m_marbleWidget); 0063 setLayout(layout); 0064 0065 // Load the OpenStreetMap map 0066 m_marbleWidget->setMapThemeId(QStringLiteral("earth/openstreetmap/openstreetmap.dgml")); 0067 m_marbleWidget->setProjection( Mercator ); 0068 setGeometry(80, 60, 1000, 800); 0069 GeoDataCoordinates Kiev(30.523333, 50.45, 0.0, GeoDataCoordinates::Degree); 0070 m_marbleWidget->centerOn(Kiev); 0071 m_marbleWidget->setZoom(2300); 0072 0073 m_carFirst = new GeoDataPlacemark(QStringLiteral("Bus")); 0074 m_carSecond = new GeoDataPlacemark(QStringLiteral("Car")); 0075 0076 GeoDataDocument *document = new GeoDataDocument; 0077 0078 document->append(m_carFirst); 0079 document->append(m_carSecond); 0080 0081 m_marbleWidget->model()->treeModel()->addDocument(document); 0082 0083 show(); 0084 } 0085 0086 void Window::startCars() 0087 { 0088 GeoDataCoordinates Kiev(30.523333, 50.45, 0.0, GeoDataCoordinates::Degree); 0089 0090 m_threadFirst = new QThread; 0091 m_firstWorker = new CarWorker(Kiev, (qreal)0.1, (qreal)0.7); 0092 m_firstWorker->moveToThread(m_threadFirst); 0093 0094 connect(m_firstWorker, SIGNAL(coordinatesChanged(GeoDataCoordinates)), 0095 this, SLOT(setCarCoordinates(GeoDataCoordinates)), Qt::BlockingQueuedConnection); 0096 0097 m_threadSecond = new QThread; 0098 m_secondWorker = new CarWorker(Kiev, (qreal)0.2, (qreal)-0.5); 0099 m_secondWorker->moveToThread(m_threadSecond); 0100 0101 connect(m_secondWorker, SIGNAL(coordinatesChanged(GeoDataCoordinates)), 0102 this, SLOT(setCarCoordinates(GeoDataCoordinates)), Qt::BlockingQueuedConnection); 0103 0104 connect(m_threadFirst, SIGNAL(started()), m_firstWorker, SLOT(startWork())); 0105 connect(m_threadFirst, SIGNAL(finished()), m_firstWorker, SLOT(finishWork())); 0106 0107 connect(m_threadSecond, SIGNAL(started()), m_secondWorker, SLOT(startWork())); 0108 connect(m_threadSecond, SIGNAL(finished()), m_secondWorker, SLOT(finishWork())); 0109 0110 m_threadFirst->start(); 0111 m_threadSecond->start(); 0112 } 0113 0114 void Window::setCarCoordinates(const GeoDataCoordinates &coord) 0115 { 0116 CarWorker *worker = qobject_cast<CarWorker*>(sender()); 0117 if (worker == m_firstWorker) { 0118 m_carFirst->setCoordinate(coord); 0119 m_marbleWidget->model()->treeModel()->updateFeature(m_carFirst); 0120 } else if (worker == m_secondWorker) { 0121 m_carSecond->setCoordinate(coord); 0122 m_marbleWidget->model()->treeModel()->updateFeature(m_carSecond); 0123 } 0124 } 0125 0126 // Main (start point) 0127 int main(int argc, char** argv) 0128 { 0129 QApplication app(argc,argv); 0130 0131 Window window; 0132 window.startCars(); 0133 0134 return app.exec(); 0135 } 0136 0137 #include "moc_vehicletracking.cpp"