Normalize zero-based firmware satellite indices

# Conflicts:
#	src/GlobeWidget.cpp
#	src/GlobeWidget.h
#	src/MainWindow.h
#	src/MapWidget.cpp
#	src/MapWidget.h
#	src/RinexNavigation.cpp

CMakeLists.txt

@@ -43,7 +43,7 @@ endif()
 
 qt_add_resources(location_plotter "app_resources"
     PREFIX "/"
-    FILES resources/ankasys-logo.png resources/land-110m.json
+    FILES resources/ankasys-logo.png resources/land-110m.json resources/bluemarble-2048.png
 )
 
 if(UNIX AND NOT APPLE)
@@ -90,7 +90,7 @@ target_compile_options(location_main_window_tests PRIVATE
 )
 qt_add_resources(location_main_window_tests "test_app_resources"
     PREFIX "/"
-    FILES resources/ankasys-logo.png resources/land-110m.json
+    FILES resources/ankasys-logo.png resources/land-110m.json resources/bluemarble-2048.png
 )
 if(UNIX AND NOT APPLE)
     target_compile_definitions(location_main_window_tests PRIVATE LOCATION_PLOTTER_LINUX_SERIAL=1)

README.md

@@ -219,13 +219,16 @@ without logging out.
   (10 degrees by default, press Enter after typing);
   satellites inside the mask get a cyan sight line and halo. Incoming positions update the
   receiver marker without resetting a globe orientation chosen by dragging.
+- The globe surface uses NASA/GSFC Scientific Visualization Studio's 2048x1024 Blue Marble
+  mosaic (NASA SVS visualization 2915), projected locally without a runtime network request.
 - RINEX download starts at every launch, repeats every 15 minutes, and falls back through the
   previous two UTC days if today's stream file is unavailable. Current and next-minute satellite
   positions are propagated from the cached ephemeris, then smoothly interpolated at 10 FPS.
 - The 3D Earth tab includes a `RINEX Guncelle` button for an immediate manual refresh. Its status
-  line shows the UTC time of the last successful download or cache load.
+  line shows the system-local time of the last successful download or cache load.
-- Complete UART channel snapshots such as `tracked satellites=5 prns=[...]` replace the previous
+- Complete UART channel snapshots such as `tracked satellites=5 prn_indices=[...]` replace the
-  connected-PRN set, so satellites that were lost no longer remain green.
+  previous connected-PRN set, so satellites that were lost no longer remain green. Firmware
+  channel indices are zero-based and are normalized for display (`0` is GPS PRN `G01`).
 - RINEX text is parsed once per download and retained as compact ephemeris records. The static
   globe is cached between camera changes, reducing CPU and allocation load during orbit animation.
 - The globe uses an embedded Natural Earth coastline mask with terrain-like land colouring,

src/GlobeWidget.cpp

@@ -1,12 +1,14 @@
 #include "GlobeWidget.h"
 
 #include <QLinearGradient>
+#include <QDateTime>
 #include <QHash>
 #include <QFile>
 #include <QJsonArray>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QMouseEvent>
+#include <QNativeGestureEvent>
 #include <QPainter>
 #include <QPainterPath>
 #include <QPolygonF>
@@ -185,6 +187,15 @@ const QImage &landMask()
     return mask;
 }
 
+const QImage &blueMarbleTexture()
+{
+    static const QImage texture = [] {
+        QImage image(QStringLiteral(":/resources/bluemarble-2048.png"));
+        return image.convertToFormat(QImage::Format_RGB32);
+    }();
+    return texture;
+}
+
 bool maskIsLand(double longitude, double latitude)
 {
     const QImage &mask = landMask();
@@ -354,14 +365,18 @@ void GlobeWidget::paintEvent(QPaintEvent *)
     painter.setRenderHint(QPainter::Antialiasing, true);
 
     const qreal devicePixelRatio = devicePixelRatioF();
+    const qint64 lightingMinute =
+        QDateTime::currentDateTimeUtc().toSecsSinceEpoch() / 60;
     if (m_staticLayer.isNull() || m_staticLayerSize != size()
         || !qFuzzyCompare(m_staticLayerDevicePixelRatio, devicePixelRatio)
         || m_staticLayerYaw != m_yaw || m_staticLayerPitch != m_pitch
-        || m_staticLayerZoom != m_zoom) {
+        || m_staticLayerZoom != m_zoom
+        || m_staticLayerLightingMinute != lightingMinute) {
         rebuildStaticLayer();
     }
     painter.drawPixmap(0, 0, m_staticLayer);
 
+    drawSatelliteCoverage(painter);
     if (m_hasReceiver) drawVisibilityCone(painter);
     if (m_hasReceiver) drawReceiver(painter);
     const int visibleCount = drawSatellites(painter);
@@ -454,10 +469,26 @@ void GlobeWidget::rebuildStaticLayer()
     QPainterPath sphereClip;
     sphereClip.addEllipse(center, radius, radius);
     painter.setClipPath(sphereClip);
-    drawContinents(painter);
+    drawBlueMarble(painter);
     drawGraticule(painter);
     painter.restore();
 
+    // A subtle limb shadow and ocean highlight add depth without hiding the
+    // geographic texture or telemetry overlays.
+    painter.save();
+    QPainterPath lightingClip;
+    lightingClip.addEllipse(center, radius, radius);
+    painter.setClipPath(lightingClip);
+    QRadialGradient limb(center - QPointF(radius * .30, radius * .34), radius * 1.30);
+    limb.setColorAt(0.0, QColor(255, 255, 255, 18));
+    limb.setColorAt(0.50, QColor(70, 175, 225, 5));
+    limb.setColorAt(0.82, QColor(0, 8, 20, 35));
+    limb.setColorAt(1.0, QColor(0, 3, 12, 155));
+    painter.setPen(Qt::NoPen);
+    painter.setBrush(limb);
+    painter.drawEllipse(center, radius, radius);
+    painter.restore();
+
     for (int i = 0; i < 3; ++i) drawOrbit(painter, 55.0 + i * 1.8, i * 61.0 + 12.0);
     painter.end();
 
@@ -467,6 +498,107 @@ void GlobeWidget::rebuildStaticLayer()
     m_staticLayerYaw = m_yaw;
     m_staticLayerPitch = m_pitch;
     m_staticLayerZoom = m_zoom;
+    m_staticLayerLightingMinute =
+        QDateTime::currentDateTimeUtc().toSecsSinceEpoch() / 60;
+}
+
+void GlobeWidget::drawBlueMarble(QPainter &painter) const
+{
+    const QImage &source = blueMarbleTexture();
+    if (source.isNull()) {
+        drawContinents(painter);
+        return;
+    }
+
+    const double radius = std::min(width(), height()) * 0.255 * m_zoom;
+    // Interactive rotation favors latency; mouse release immediately causes
+    // a full Retina-quality rebuild. Satellite animation frames reuse the
+    // cached texture and therefore do not repeat this projection work.
+    const double pixelRatio = m_dragging ? std::min(devicePixelRatioF(), 1.0)
+                                         : std::min(devicePixelRatioF(), 2.0);
+    const int textureSize = m_dragging
+        ? std::clamp(static_cast<int>(std::ceil(radius * 2.0 * pixelRatio)), 280, 650)
+        : std::clamp(static_cast<int>(std::ceil(radius * 2.0 * pixelRatio)), 420, 1200);
+    const QPointF center(width() * 0.5, height() * 0.52);
+    const QRectF target(center.x() - radius, center.y() - radius,
+                        radius * 2.0, radius * 2.0);
+    const QDateTime nowUtc = QDateTime::currentDateTimeUtc();
+    const qint64 lightingMinute = nowUtc.toSecsSinceEpoch() / 60;
+    if (!m_landTexture.isNull() && m_landTexture.width() == textureSize
+        && m_landTextureYaw == m_yaw && m_landTexturePitch == m_pitch
+        && m_landTextureLightingMinute == lightingMinute) {
+        painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
+        painter.drawImage(target, m_landTexture);
+        return;
+    }
+
+    QImage globe(textureSize, textureSize, QImage::Format_ARGB32_Premultiplied);
+    globe.fill(Qt::transparent);
+    const double cy = std::cos(m_yaw);
+    const double sy = std::sin(m_yaw);
+    const double cp = std::cos(m_pitch);
+    const double sp = std::sin(m_pitch);
+    const double utcHours = nowUtc.time().msecsSinceStartOfDay() / 3600000.0;
+    const double declination = 23.44 * std::sin(
+        2.0 * Pi * (284.0 + nowUtc.date().dayOfYear()) / 365.25);
+    const Vec3 sun = globeVector(declination, (12.0 - utcHours) * 15.0);
+    const Vec3 camera {sy * cp, cy * cp, -sp};
+    const double halfLength = std::sqrt(std::pow(sun.x + camera.x, 2.0)
+        + std::pow(sun.y + camera.y, 2.0) + std::pow(sun.z + camera.z, 2.0));
+    const Vec3 halfVector {(sun.x + camera.x) / halfLength,
+                           (sun.y + camera.y) / halfLength,
+                           (sun.z + camera.z) / halfLength};
+
+    for (int py = 0; py < textureSize; ++py) {
+        QRgb *destination = reinterpret_cast<QRgb *>(globe.scanLine(py));
+        const double screenZ = -((py + 0.5) / textureSize * 2.0 - 1.0);
+        for (int px = 0; px < textureSize; ++px) {
+            const double screenX = (px + 0.5) / textureSize * 2.0 - 1.0;
+            const double radiusSquared = screenX * screenX + screenZ * screenZ;
+            if (radiusSquared > 1.0) continue;
+            const double depth = std::sqrt(1.0 - radiusSquared);
+            const double yawY = cp * depth + sp * screenZ;
+            const double worldZ = -sp * depth + cp * screenZ;
+            const double worldX = cy * screenX + sy * yawY;
+            const double worldY = -sy * screenX + cy * yawY;
+            const double latitude = std::asin(std::clamp(worldZ, -1.0, 1.0));
+            const double longitude = std::atan2(worldY, worldX);
+            int sourceX = static_cast<int>((longitude / (2.0 * Pi) + 0.5) * source.width());
+            sourceX = (sourceX % source.width() + source.width()) % source.width();
+            const int sourceY = std::clamp(static_cast<int>((0.5 - latitude / Pi)
+                                               * source.height()), 0, source.height() - 1);
+            const QRgb sample = reinterpret_cast<const QRgb *>(source.constScanLine(sourceY))[sourceX];
+
+            double red = qRed(sample);
+            double green = qGreen(sample);
+            double blue = qBlue(sample);
+            const double solarDot = worldX * sun.x + worldY * sun.y + worldZ * sun.z;
+            const double daylight = smoothStep(-0.10, 0.07, solarDot);
+            const double diffuse = 0.16 + 0.84 * std::max(0.0, solarDot);
+            const bool ocean = blue > green * 1.18 && blue > red * 1.35;
+            if (ocean) {
+                const double halfDot = std::max(0.0, worldX * halfVector.x
+                    + worldY * halfVector.y + worldZ * halfVector.z);
+                const double specular = std::pow(halfDot, 80.0) * daylight * 115.0;
+                red += specular;
+                green += specular;
+                blue += specular * 0.92;
+            }
+            const double limb = smoothStep(0.02, 0.34, depth);
+            const double lighting = (0.08 + diffuse * 0.92) * (0.45 + limb * 0.55);
+            destination[px] = qRgba(
+                std::clamp(static_cast<int>(red * lighting), 0, 255),
+                std::clamp(static_cast<int>(green * lighting), 0, 255),
+                std::clamp(static_cast<int>(blue * lighting), 0, 255), 255);
+        }
+    }
+
+    m_landTexture = globe;
+    m_landTextureYaw = m_yaw;
+    m_landTexturePitch = m_pitch;
+    m_landTextureLightingMinute = lightingMinute;
+    painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
+    painter.drawImage(target, m_landTexture);
 }
 
 void GlobeWidget::drawContinents(QPainter &painter) const
@@ -479,8 +611,11 @@ void GlobeWidget::drawContinents(QPainter &painter) const
     const QPointF center(width() * 0.5, height() * 0.52);
     const QRectF target(center.x() - radius, center.y() - radius,
                         radius * 2.0, radius * 2.0);
+    const QDateTime nowUtc = QDateTime::currentDateTimeUtc();
+    const qint64 lightingMinute = nowUtc.toSecsSinceEpoch() / 60;
     if (!m_landTexture.isNull() && m_landTexture.width() == textureSize
-        && m_landTextureYaw == m_yaw && m_landTexturePitch == m_pitch) {
+        && m_landTextureYaw == m_yaw && m_landTexturePitch == m_pitch
+        && m_landTextureLightingMinute == lightingMinute) {
         painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
         painter.drawImage(target, m_landTexture);
         return;
@@ -492,6 +627,18 @@ void GlobeWidget::drawContinents(QPainter &painter) const
     const double sy = std::sin(m_yaw);
     const double cp = std::cos(m_pitch);
     const double sp = std::sin(m_pitch);
+    const double utcHours = nowUtc.time().msecsSinceStartOfDay() / 3600000.0;
+    const double solarDeclination = 23.44 * std::sin(
+        2.0 * Pi * (284.0 + nowUtc.date().dayOfYear()) / 365.25);
+    const double subsolarLongitude = (12.0 - utcHours) * 15.0;
+    const Vec3 sun = globeVector(solarDeclination, subsolarLongitude);
+    const Vec3 camera {sy * cp, cy * cp, -sp};
+    const double halfLength = std::sqrt(
+        std::pow(sun.x + camera.x, 2.0) + std::pow(sun.y + camera.y, 2.0)
+        + std::pow(sun.z + camera.z, 2.0));
+    const Vec3 halfVector {(sun.x + camera.x) / halfLength,
+                           (sun.y + camera.y) / halfLength,
+                           (sun.z + camera.z) / halfLength};
     for (int py = 0; py < textureSize; ++py) {
         QRgb *scanLine = reinterpret_cast<QRgb *>(land.scanLine(py));
         const double screenZ = -((py + 0.5) / textureSize * 2.0 - 1.0);
@@ -512,16 +659,37 @@ void GlobeWidget::drawContinents(QPainter &painter) const
                 || maskIsLand(longitude - 0.55, latitude)
                 || maskIsLand(longitude, latitude + 0.55)
                 || maskIsLand(longitude, latitude - 0.55);
+            const double cloudNoise = 0.50
+                + 0.24 * std::sin(longitude * Pi / 22.0 + latitude * Pi / 19.0)
+                + 0.18 * std::sin(longitude * Pi / 7.0 - latitude * Pi / 13.0)
+                + 0.12 * std::cos(longitude * Pi / 3.7 + latitude * Pi / 8.0);
+            const double cloud = smoothStep(0.72, 0.94, cloudNoise)
+                * smoothStep(0.03, 0.25, depth);
+            const double solarDot = worldX * sun.x + worldY * sun.y + worldZ * sun.z;
+            const double daylight = smoothStep(-0.11, 0.08, solarDot);
+            const double diffuse = 0.12 + 0.88 * std::max(0.0, solarDot);
             if (!onLand) {
-                if (nearLand) {
+                const double oceanPattern = 0.5 + 0.25 * std::sin(longitude * Pi / 31.0)
-                    const int alpha = static_cast<int>(65.0 * std::clamp(depth * 1.5, 0.0, 1.0));
+                    + 0.18 * std::cos(latitude * Pi / 17.0 + longitude * Pi / 47.0);
-                    scanLine[px] = qRgba(33, 151, 174, alpha);
+                double red = nearLand ? 18.0 : 3.0 + oceanPattern * 5.0;
-                }
+                double green = nearLand ? 104.0 : 32.0 + oceanPattern * 16.0;
+                double blue = nearLand ? 132.0 : 72.0 + oceanPattern * 26.0;
+                const double halfDot = std::max(0.0, worldX * halfVector.x
+                    + worldY * halfVector.y + worldZ * halfVector.z);
+                const double specular = std::pow(halfDot, 72.0) * daylight * 150.0;
+                const double shade = 0.18 + diffuse * 0.82;
+                red = red * shade + specular;
+                green = green * shade + specular;
+                blue = blue * shade + specular * 0.92;
+                red = red * (1.0 - cloud * 0.58) + 226.0 * cloud * 0.58;
+                green = green * (1.0 - cloud * 0.58) + 237.0 * cloud * 0.58;
+                blue = blue * (1.0 - cloud * 0.58) + 243.0 * cloud * 0.58;
+                scanLine[px] = qRgba(std::clamp(static_cast<int>(red), 0, 255),
+                                     std::clamp(static_cast<int>(green), 0, 255),
+                                     std::clamp(static_cast<int>(blue), 0, 255), 248);
                 continue;
             }
 
-            const double light = std::clamp(0.30 + 0.70
-                * (0.35 - screenX * 0.38 + screenZ * 0.48 + depth * 0.38), 0.18, 1.0);
             const double lon = longitude * Pi / 180.0;
             const double lat = latitude * Pi / 180.0;
             const double broadRelief = 0.50 + 0.24 * std::sin(lon * 5.0 + lat * 2.2)
@@ -550,31 +718,110 @@ void GlobeWidget::drawContinents(QPainter &painter) const
             red = red * (1.0 - snow) + 224.0 * snow;
             green = green * (1.0 - snow) + 231.0 * snow;
             blue = blue * (1.0 - snow) + 224.0 * snow;
+            red = red * (1.0 - cloud * 0.62) + 232.0 * cloud * 0.62;
+            green = green * (1.0 - cloud * 0.62) + 241.0 * cloud * 0.62;
+            blue = blue * (1.0 - cloud * 0.62) + 244.0 * cloud * 0.62;
 
             const bool coast = !maskIsLand(longitude + 0.55, latitude)
                 || !maskIsLand(longitude - 0.55, latitude)
                 || !maskIsLand(longitude, latitude + 0.55)
                 || !maskIsLand(longitude, latitude - 0.55);
-            const double shade = light * (0.86 + relief * 0.14);
+            const double shade = (0.15 + diffuse * 0.85) * (0.86 + relief * 0.14);
             if (coast) {
                 red += 28.0;
                 green += 31.0;
                 blue += 18.0;
             }
+            const double settlementNoise = 0.5 + 0.28 * std::sin(lon * 41.0 + lat * 19.0)
+                + 0.22 * std::cos(lon * 73.0 - lat * 31.0);
+            const double cityLights = smoothStep(0.82, 0.98, settlementNoise)
+                * (1.0 - daylight) * smoothStep(68.0, 42.0, std::abs(latitude));
             scanLine[px] = qRgba(
-                std::clamp(static_cast<int>(red * shade), 0, 255),
+                std::clamp(static_cast<int>(red * shade + cityLights * 235.0), 0, 255),
-                std::clamp(static_cast<int>(green * shade), 0, 255),
+                std::clamp(static_cast<int>(green * shade + cityLights * 155.0), 0, 255),
-                std::clamp(static_cast<int>(blue * shade), 0, 255), 238);
+                std::clamp(static_cast<int>(blue * shade + cityLights * 52.0), 0, 255), 248);
         }
     }
 
     m_landTexture = land;
     m_landTextureYaw = m_yaw;
     m_landTexturePitch = m_pitch;
+    m_landTextureLightingMinute = lightingMinute;
     painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
     painter.drawImage(target, m_landTexture);
 }
 
+void GlobeWidget::drawSatelliteCoverage(QPainter &painter) const
+{
+    if (m_satellites.isEmpty()) return;
+
+    constexpr double EarthRadiusMeters = 6378137.0;
+    const double earthRadiusPixels = std::min(width(), height()) * 0.255 * m_zoom;
+    const double elevation = m_elevationMaskDegrees * Pi / 180.0;
+
+    for (const SatellitePosition &satellite : m_satellites) {
+        const double orbitRadius = std::sqrt(satellite.x * satellite.x
+                                             + satellite.y * satellite.y
+                                             + satellite.z * satellite.z);
+        if (orbitRadius <= EarthRadiusMeters) continue;
+
+        const Vec3 normal {satellite.x / orbitRadius, satellite.y / orbitRadius,
+                           satellite.z / orbitRadius};
+        const double footprintAngle = std::acos(std::clamp(
+            EarthRadiusMeters / orbitRadius * std::cos(elevation), -1.0, 1.0)) - elevation;
+        Vec3 reference = std::abs(normal.z) < 0.88
+            ? Vec3{0.0, 0.0, 1.0} : Vec3{1.0, 0.0, 0.0};
+        Vec3 tangentA {
+            reference.y * normal.z - reference.z * normal.y,
+            reference.z * normal.x - reference.x * normal.z,
+            reference.x * normal.y - reference.y * normal.x
+        };
+        const double tangentLength = std::sqrt(tangentA.x * tangentA.x
+                                                + tangentA.y * tangentA.y
+                                                + tangentA.z * tangentA.z);
+        if (tangentLength <= 0.0) continue;
+        tangentA = {tangentA.x / tangentLength, tangentA.y / tangentLength,
+                    tangentA.z / tangentLength};
+        const Vec3 tangentB {
+            normal.y * tangentA.z - normal.z * tangentA.y,
+            normal.z * tangentA.x - normal.x * tangentA.z,
+            normal.x * tangentA.y - normal.y * tangentA.x
+        };
+
+        const bool tracked = m_observedPrns.contains(satellite.prn);
+        QColor coverageColor = tracked ? QColor(69, 232, 157, 78)
+                                       : QColor(83, 188, 230, 25);
+        painter.setPen(QPen(coverageColor, tracked ? 1.15 : 0.65, Qt::DashLine));
+        painter.setBrush(Qt::NoBrush);
+        QPainterPath visibleSegments;
+        bool drawing = false;
+        constexpr int Segments = 72;
+        for (int segment = 0; segment <= Segments; ++segment) {
+            const double angle = 2.0 * Pi * segment / Segments;
+            const Vec3 tangent {
+                tangentA.x * std::cos(angle) + tangentB.x * std::sin(angle),
+                tangentA.y * std::cos(angle) + tangentB.y * std::sin(angle),
+                tangentA.z * std::cos(angle) + tangentB.z * std::sin(angle)
+            };
+            const Vec3 surface {
+                normal.x * std::cos(footprintAngle) + tangent.x * std::sin(footprintAngle),
+                normal.y * std::cos(footprintAngle) + tangent.y * std::sin(footprintAngle),
+                normal.z * std::cos(footprintAngle) + tangent.z * std::sin(footprintAngle)
+            };
+            const ProjectedPoint point = project(surface.x, surface.y, surface.z,
+                                                 earthRadiusPixels * 1.006);
+            if (point.depth >= -0.015) {
+                if (!drawing) visibleSegments.moveTo(point.point);
+                else visibleSegments.lineTo(point.point);
+                drawing = true;
+            } else {
+                drawing = false;
+            }
+        }
+        painter.drawPath(visibleSegments);
+    }
+}
+
 void GlobeWidget::drawStars(QPainter &painter) const
 {
     painter.setPen(Qt::NoPen);
@@ -591,6 +838,10 @@ void GlobeWidget::drawStars(QPainter &painter) const
 void GlobeWidget::drawGraticule(QPainter &painter) const
 {
     const double radius = std::min(width(), height()) * 0.255 * m_zoom;
+    // Paths are open grid lines. Inheriting the radial Earth brush makes
+    // QPainter implicitly close and fill them, which produced the black
+    // rectangular/polygonal artifacts on the globe.
+    painter.setBrush(Qt::NoBrush);
     painter.setPen(QPen(QColor(100, 193, 221, 48), 0.8));
     for (int latitude = -60; latitude <= 60; latitude += 30) {
         QPainterPath path;
@@ -707,14 +958,10 @@ void GlobeWidget::drawVisibilityCone(QPainter &painter) const
                                earthRadiusPixels * displayOrbitRatio));
     }
 
-    painter.setPen(Qt::NoPen);
+    // Do not fill the projected cone with a triangle fan. When part of the
-    for (int i = 0; i < Segments; ++i) {
+    // ring is behind the globe that fan self-intersects and produces dark
-        const double averageDepth = (apex.depth + ring[i].depth + ring[i + 1].depth) / 3.0;
+    // rectangular/polygonal artifacts over the Earth texture. The boundary,
-        const int alpha = averageDepth >= 0.0 ? 18 : 7;
+    // spokes and sight lines communicate the same mask without obscuring it.
-        painter.setBrush(QColor(48, 207, 218, alpha));
-        painter.drawPolygon(QPolygonF{apex.point, ring[i].point, ring[i + 1].point});
-    }
-
     QPainterPath boundary;
     boundary.moveTo(ring.first().point);
     for (int i = 1; i < ring.size(); ++i) boundary.lineTo(ring[i].point);
@@ -864,7 +1111,26 @@ void GlobeWidget::mouseReleaseEvent(QMouseEvent *event)
 
 void GlobeWidget::wheelEvent(QWheelEvent *event)
 {
-    m_zoom = std::clamp(m_zoom + event->angleDelta().y() / 1200.0, 0.72, 1.28);
+    const QPoint pixelDelta = event->pixelDelta();
+    const double delta = !pixelDelta.isNull()
+        ? pixelDelta.y() / 420.0
+        : event->angleDelta().y() / 1200.0;
+    if (qFuzzyIsNull(delta)) return;
+    m_zoom = std::clamp(m_zoom + delta, 0.62, 1.42);
     update();
     event->accept();
 }
+
+bool GlobeWidget::event(QEvent *event)
+{
+    if (event->type() == QEvent::NativeGesture) {
+        auto *gesture = static_cast<QNativeGestureEvent *>(event);
+        if (gesture->gestureType() == Qt::ZoomNativeGesture) {
+            m_zoom = std::clamp(m_zoom + gesture->value() * 0.85, 0.62, 1.42);
+            update();
+            gesture->accept();
+            return true;
+        }
+    }
+    return QWidget::event(event);
+}

src/GlobeWidget.h

@@ -30,6 +30,7 @@ public slots:
     void setElevationMask(double degrees);
 
 protected:
+    bool event(QEvent *event) override;
     void paintEvent(QPaintEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
@@ -46,6 +47,8 @@ private:
     void drawStars(QPainter &painter) const;
     void drawOrbit(QPainter &painter, double inclination, double node) const;
     void drawContinents(QPainter &painter) const;
+    void drawBlueMarble(QPainter &painter) const;
+    void drawSatelliteCoverage(QPainter &painter) const;
     void drawVisibilityCone(QPainter &painter) const;
     void drawGraticule(QPainter &painter) const;
     void drawReceiver(QPainter &painter) const;
@@ -63,12 +66,14 @@ private:
     mutable QImage m_landTexture;
     mutable double m_landTextureYaw = 0.0;
     mutable double m_landTexturePitch = 0.0;
+    mutable qint64 m_landTextureLightingMinute = -1;
     QPixmap m_staticLayer;
     QSize m_staticLayerSize;
     qreal m_staticLayerDevicePixelRatio = 0.0;
     double m_staticLayerYaw = 0.0;
     double m_staticLayerPitch = 0.0;
     double m_staticLayerZoom = 0.0;
+    qint64 m_staticLayerLightingMinute = -1;
     QSet<QString> m_observedPrns;
     QString m_status = QStringLiteral("Konum bekleniyor");
     bool m_statusError = false;

src/LocationParser.cpp

@@ -234,10 +234,11 @@ QSet<QString> LocationParser::parseGpsPrns(const QString &line)
     QSet<QString> result;
     const auto addPrn = [&result](QString value, bool zeroBased = false) {
         value = value.trimmed().toUpper();
-        if (value.startsWith(QLatin1Char('G'))) value.remove(0, 1);
+        const bool explicitGpsPrn = value.startsWith(QLatin1Char('G'));
+        if (explicitGpsPrn) value.remove(0, 1);
         bool ok = false;
         int number = value.toInt(&ok);
-        if (ok && zeroBased) ++number;
+        if (ok && zeroBased && !explicitGpsPrn) ++number;
         if (ok && number >= 1 && number <= 63) {
             result.insert(QStringLiteral("G%1").arg(number, 2, 10, QLatin1Char('0')));
         }
@@ -249,18 +250,31 @@ QSet<QString> LocationParser::parseGpsPrns(const QString &line)
     auto gpsMatches = gpsToken.globalMatch(line);
     while (gpsMatches.hasNext()) addPrn(gpsMatches.next().captured(QStringLiteral("prn")));
 
-    static const QRegularExpression labeledList(
+    // Current firmware versions called their zero-based hardware channel values
-        QStringLiteral(R"((?<label>\bPRNS?\b|\bSVS?\b|\bSVNS?\b|\bSVIDS?\b)\s*(?:=|:|->)?\s*[\[(]?\s*(?<list>(?:G?\d{1,2})(?:\s*[,;/| ]\s*G?\d{1,2})*)\s*[\])]?)"),
+    // "prns" in complete tracking snapshots. Keep accepting those messages while
+    // newer firmware uses the unambiguous "prn_indices" label.
+    static const QRegularExpression legacyTrackingIndices(
+        QStringLiteral(R"(\btracked\s+satellites\s*=\s*\d+\s+prns?\s*=)"),
         QRegularExpression::CaseInsensitiveOption);
-    static const QRegularExpression number(QStringLiteral(R"(G?(\d{1,2}))"),
+    const bool legacyZeroBasedPrns = legacyTrackingIndices.match(line).hasMatch();
+
+    static const QRegularExpression labeledList(
+        QStringLiteral(R"((?<label>\bPRN[_ -]?INDICES\b|\bPRNS?\b|\bSVS?\b|\bSVNS?\b|\bSVIDS?\b)\s*(?:=|:|->)?\s*[\[(]?\s*(?<list>(?:G?\d{1,2})(?:\s*[,;/| ]\s*G?\d{1,2})*)\s*[\])]?)"),
+        QRegularExpression::CaseInsensitiveOption);
+    static const QRegularExpression number(QStringLiteral(R"(G?\d{1,2})"),
                                             QRegularExpression::CaseInsensitiveOption);
     auto listMatches = labeledList.globalMatch(line);
     while (listMatches.hasNext()) {
         const QRegularExpressionMatch listMatch = listMatches.next();
-        const bool zeroBased = listMatch.captured(QStringLiteral("label")).startsWith(
+        QString label = listMatch.captured(QStringLiteral("label")).toUpper();
-            QStringLiteral("SVN"), Qt::CaseInsensitive);
+        label.remove(QLatin1Char('_'));
+        label.remove(QLatin1Char('-'));
+        label.remove(QLatin1Char(' '));
+        const bool zeroBased = label.startsWith(QStringLiteral("SVN"))
+            || label == QStringLiteral("PRNINDICES")
+            || (legacyZeroBasedPrns && label.startsWith(QStringLiteral("PRN")));
         auto values = number.globalMatch(listMatch.captured(QStringLiteral("list")));
-        while (values.hasNext()) addPrn(values.next().captured(1), zeroBased);
+        while (values.hasNext()) addPrn(values.next().captured(0), zeroBased);
     }
     return result;
 }

src/MainWindow.cpp

@@ -9,6 +9,7 @@
 #include <QAbstractItemView>
 #include <QAbstractTableModel>
 #include <QCheckBox>
+#include <QCloseEvent>
 #include <QComboBox>
 #include <QDateTime>
 #include <QDir>
@@ -21,10 +22,13 @@
 #include <QHeaderView>
 #include <QLabel>
 #include <QLineEdit>
+#include <QMenuBar>
+#include <QMessageBox>
 #include <QPlainTextEdit>
 #include <QScrollArea>
 #include <QPushButton>
 #include <QRegularExpression>
+#include <QSettings>
 #include <QSpinBox>
 #include <QSplitter>
 #include <QStatusBar>
@@ -160,6 +164,7 @@ LocationAnalysis analyzeLocations(const QVector<TelemetryPoint> &points)
 QVector<TelemetryPoint> preferredAnalysisPoints(const QVector<TelemetryPoint> &points)
 {
     QVector<TelemetryPoint> corrected;
+    corrected.reserve(points.size());
     for (const TelemetryPoint &point : points) {
         if (point.source == LocationSource::ImuCorrected) {
             corrected.push_back(point);
@@ -378,6 +383,7 @@ MainWindow::MainWindow(QWidget *parent)
     , m_rinex(new RinexNavigation(this))
 {
     buildUi();
+    buildMenus();
 
     m_locationTimeoutTimer = new QTimer(this);
     m_locationTimeoutTimer->setSingleShot(true);
@@ -387,16 +393,29 @@ MainWindow::MainWindow(QWidget *parent)
     m_uiRefreshTimer->setSingleShot(true);
     m_uiRefreshTimer->setInterval(UiRefreshIntervalMs);
 
+    m_portRefreshTimer = new QTimer(this);
+    m_portRefreshTimer->setInterval(2000);
+
     connect(m_serial, &SerialReader::lineReceived, this, &MainWindow::handleSerialLine);
     connect(m_serial, &SerialReader::statusChanged, this, &MainWindow::handleSerialStatus);
     connect(m_serial, &SerialReader::errorOccurred, this, &MainWindow::handleSerialError);
     connect(m_locationTimeoutTimer, &QTimer::timeout, this, &MainWindow::handleLocationTimeout);
     connect(m_uiRefreshTimer, &QTimer::timeout, this, &MainWindow::flushUiUpdates);
+    connect(m_portRefreshTimer, &QTimer::timeout, this, [this] {
+        if (!m_serial->isOpen()) refreshSerialPorts();
+    });
+    m_portRefreshTimer->start();
     connect(m_rinex, &RinexNavigation::satelliteMotionUpdated,
             m_globe, &GlobeWidget::setSatelliteMotion);
     connect(m_rinex, &RinexNavigation::statusChanged, this,
             [this](const QString &status, bool error) {
         m_globe->setRinexStatus(status, error);
+        if (m_rinexUpdateButton != nullptr) {
+            m_rinexUpdateButton->setEnabled(!m_rinex->isLoading());
+            m_rinexUpdateButton->setText(m_rinex->isLoading()
+                ? QStringLiteral("RINEX indiriliyor...")
+                : QStringLiteral("RINEX Guncelle"));
+        }
         statusBar()->showMessage(status, error ? 8000 : 4000);
     });
     connect(m_rinex, &RinexNavigation::loadingChanged, this, [this](bool loading) {
@@ -414,9 +433,16 @@ MainWindow::MainWindow(QWidget *parent)
     rinexRefreshTimer->start();
 
     resize(1480, 900);
+    loadSettings();
     setWindowTitle(QStringLiteral("Canli Konum Haritasi"));
 }
 
+void MainWindow::closeEvent(QCloseEvent *event)
+{
+    saveSettings();
+    QMainWindow::closeEvent(event);
+}
+
 void MainWindow::toggleSerial()
 {
     if (m_serial->isOpen()) {
@@ -454,20 +480,19 @@ bool MainWindow::loadTelemetryLog(const QString &filePath)
     resetTelemetryState();
     const int replayCapacity = static_cast<int>(std::min<qsizetype>(10000, lines.size()));
     m_maxPointsSpin->setValue(std::max(10, replayCapacity));
-    int parsedLocations = 0;
     for (const QByteArray &rawLine : lines) {
         const QString line = QString::fromUtf8(rawLine).trimmed();
         if (line.isEmpty() || line.startsWith(QLatin1Char('#'))) {
             continue;
         }
-        const auto telemetry = LocationParser::parseLine(line);
-        if (telemetry.has_value() && telemetry->hasLocation()) {
-            ++parsedLocations;
-        }
         handleSerialLine(line);
     }
+    // Replay files do not always include a final "NAV solve done" marker. If
+    // the final latitude/longitude pair is complete, retain it as a fix.
+    commitPendingTelemetry();
     flushUiUpdates();
     m_map->fitToPoints();
+    const int parsedLocations = m_points.size();
     const QString message = QStringLiteral("Replay yuklendi: %1 konum - %2")
         .arg(parsedLocations).arg(filePath);
     m_statusLabel->setText(message);
@@ -491,6 +516,14 @@ void MainWindow::refreshSerialPorts()
     const QString configuredPort = qEnvironmentVariable("LOCATION_PLOTTER_PORT").trimmed();
     const QStringList detectedPorts = detectedSerialPorts();
 
+    if (m_portsInitialized && detectedPorts == m_lastDetectedPorts) {
+        return;
+    }
+    const bool deviceAdded = m_portsInitialized
+        && detectedPorts.size() > m_lastDetectedPorts.size();
+    m_lastDetectedPorts = detectedPorts;
+    m_portsInitialized = true;
+
     m_portCombo->clear();
     for (const QString &port : detectedPorts) {
         m_portCombo->addItem(port);
@@ -511,6 +544,106 @@ void MainWindow::refreshSerialPorts()
         m_portCombo->addItem(selectedPort);
     }
     m_portCombo->setCurrentText(selectedPort);
+    if (deviceAdded) {
+        statusBar()->showMessage(QStringLiteral("Yeni USB UART aygiti algilandi: %1")
+                                     .arg(selectedPort), 4000);
+    }
+}
+
+void MainWindow::buildMenus()
+{
+    auto *fileMenu = menuBar()->addMenu(QStringLiteral("Dosya"));
+    QAction *openAction = fileMenu->addAction(QStringLiteral("Senaryo Logu Ac..."));
+    openAction->setObjectName(QStringLiteral("openLogAction"));
+    openAction->setShortcut(QKeySequence::Open);
+    connect(openAction, &QAction::triggered, this, &MainWindow::openTelemetryLog);
+    fileMenu->addSeparator();
+    QAction *quitAction = fileMenu->addAction(QStringLiteral("Cikis"));
+    quitAction->setShortcut(QKeySequence::Quit);
+    connect(quitAction, &QAction::triggered, this, &QWidget::close);
+
+    auto *connectionMenu = menuBar()->addMenu(QStringLiteral("Baglanti"));
+    QAction *listenAction = connectionMenu->addAction(QStringLiteral("Seri Baglantiyi Ac / Kapat"));
+    listenAction->setObjectName(QStringLiteral("toggleSerialAction"));
+    listenAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+K")));
+    connect(listenAction, &QAction::triggered, this, &MainWindow::toggleSerial);
+    QAction *portsAction = connectionMenu->addAction(QStringLiteral("Portlari Yenile"));
+    portsAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+Shift+R")));
+    connect(portsAction, &QAction::triggered, this, [this] {
+        m_portsInitialized = false;
+        refreshSerialPorts();
+    });
+    QAction *rinexAction = connectionMenu->addAction(QStringLiteral("RINEX Guncelle"));
+    rinexAction->setObjectName(QStringLiteral("rinexUpdateAction"));
+    rinexAction->setShortcut(QKeySequence::Refresh);
+    connect(rinexAction, &QAction::triggered, m_rinex, &RinexNavigation::refresh);
+
+    auto *viewMenu = menuBar()->addMenu(QStringLiteral("Gorunum"));
+    QAction *fitAction = viewMenu->addAction(QStringLiteral("Rotayi Haritaya Sigdir"));
+    fitAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+0")));
+    connect(fitAction, &QAction::triggered, m_map, &MapWidget::fitToPoints);
+    QAction *zoomInAction = viewMenu->addAction(QStringLiteral("Yaklastir"));
+    zoomInAction->setShortcut(QKeySequence::ZoomIn);
+    connect(zoomInAction, &QAction::triggered, m_map, &MapWidget::zoomIn);
+    QAction *zoomOutAction = viewMenu->addAction(QStringLiteral("Uzaklastir"));
+    zoomOutAction->setShortcut(QKeySequence::ZoomOut);
+    connect(zoomOutAction, &QAction::triggered, m_map, &MapWidget::zoomOut);
+
+    auto *helpMenu = menuBar()->addMenu(QStringLiteral("Yardim"));
+    QAction *aboutAction = helpMenu->addAction(QStringLiteral("Location Plotter Hakkinda"));
+    connect(aboutAction, &QAction::triggered, this, [this] {
+        QMessageBox::about(this, QStringLiteral("Location Plotter"),
+            QStringLiteral("GNSS telemetri, konum analizi ve RINEX uydu gorunumu\n"
+                           "macOS surumu 0.2.0"));
+    });
+}
+
+void MainWindow::loadSettings()
+{
+    QSettings settings;
+    restoreGeometry(settings.value(QStringLiteral("window/geometry")).toByteArray());
+    if (auto *splitter = findChild<QSplitter *>(QStringLiteral("mainSplitter")))
+        splitter->restoreState(settings.value(QStringLiteral("window/mainSplitter")).toByteArray());
+    if (auto *splitter = findChild<QSplitter *>(QStringLiteral("sideSplitter")))
+        splitter->restoreState(settings.value(QStringLiteral("window/sideSplitter")).toByteArray());
+
+    const QString port = settings.value(QStringLiteral("serial/port")).toString();
+    if (!port.isEmpty()) {
+        if (m_portCombo->findText(port) < 0) m_portCombo->addItem(port);
+        m_portCombo->setCurrentText(port);
+    }
+    m_baudCombo->setCurrentText(settings.value(QStringLiteral("serial/baud"), 115200).toString());
+    m_maxPointsSpin->setValue(settings.value(QStringLiteral("telemetry/maxPoints"), 10).toInt());
+    m_autoFollowCheck->setChecked(settings.value(QStringLiteral("map/autoFollow"), true).toBool());
+    m_showTelemetryCheck->setChecked(settings.value(QStringLiteral("map/showTelemetry"), true).toBool());
+    m_showRecentPointsCheck->setChecked(settings.value(QStringLiteral("map/showRecent"), true).toBool());
+    m_showAverageCheck->setChecked(settings.value(QStringLiteral("map/showAverage"), true).toBool());
+    if (auto *elevation = findChild<QDoubleSpinBox *>(QStringLiteral("elevationMaskSpin")))
+        elevation->setValue(settings.value(QStringLiteral("globe/elevationMask"), 10.0).toDouble());
+    if (auto *tabs = findChild<QTabWidget *>(QStringLiteral("mainViewTabs")))
+        tabs->setCurrentIndex(settings.value(QStringLiteral("window/mainTab"), 0).toInt());
+}
+
+void MainWindow::saveSettings() const
+{
+    QSettings settings;
+    settings.setValue(QStringLiteral("window/geometry"), saveGeometry());
+    if (auto *splitter = findChild<QSplitter *>(QStringLiteral("mainSplitter")))
+        settings.setValue(QStringLiteral("window/mainSplitter"), splitter->saveState());
+    if (auto *splitter = findChild<QSplitter *>(QStringLiteral("sideSplitter")))
+        settings.setValue(QStringLiteral("window/sideSplitter"), splitter->saveState());
+    settings.setValue(QStringLiteral("serial/port"), m_portCombo->currentText().trimmed());
+    settings.setValue(QStringLiteral("serial/baud"), selectedBaudRate());
+    settings.setValue(QStringLiteral("telemetry/maxPoints"), m_maxPointsSpin->value());
+    settings.setValue(QStringLiteral("map/autoFollow"), m_autoFollowCheck->isChecked());
+    settings.setValue(QStringLiteral("map/showTelemetry"), m_showTelemetryCheck->isChecked());
+    settings.setValue(QStringLiteral("map/showRecent"), m_showRecentPointsCheck->isChecked());
+    settings.setValue(QStringLiteral("map/showAverage"), m_showAverageCheck->isChecked());
+    if (auto *elevation = findChild<QDoubleSpinBox *>(QStringLiteral("elevationMaskSpin")))
+        settings.setValue(QStringLiteral("globe/elevationMask"), elevation->value());
+    if (auto *tabs = findChild<QTabWidget *>(QStringLiteral("mainViewTabs")))
+        settings.setValue(QStringLiteral("window/mainTab"), tabs->currentIndex());
+    settings.sync();
 }
 
 void MainWindow::handleSerialLine(const QString &line)
@@ -520,11 +653,19 @@ void MainWindow::handleSerialLine(const QString &line)
         QRegularExpression::CaseInsensitiveOption);
     static const QRegularExpression trackingSnapshotRegex(
         QStringLiteral(
-            R"(\btracked\s+satellites\s*=\s*\d+\s+(?:prns?|svns?)\s*=\s*\[[^\]]*\])"),
+            R"(\btracked\s+satellites\s*=\s*\d+\s+(?:prn[_ -]?indices|prns?|svns?)\s*=\s*\[[^\]]*\])"),
         QRegularExpression::CaseInsensitiveOption);
     const bool solveStarted = solveStartRegex.match(line.trimmed()).hasMatch();
     const bool trackingSnapshot = trackingSnapshotRegex.match(line).hasMatch();
     if (solveStarted) {
+        // Never combine a coordinate fragment left by the previous navigation
+        // period with fields from the new one. A complete pending fix is still
+        // useful; an incomplete one must be discarded at the period boundary.
+        if (m_pendingTelemetry.hasLocation()) {
+            commitPendingTelemetry();
+        } else {
+            m_pendingTelemetry = {};
+        }
         m_observedPrns.clear();
     }
     const QSet<QString> linePrns = LocationParser::parseGpsPrns(line);
@@ -747,7 +888,10 @@ void MainWindow::buildUi()
             background: #23445d;
             border-color: #62b8e8;
         }
-        QPushButton:pressed, QToolButton:pressed { background: #dbeaf6; }
+        QPushButton:pressed, QToolButton:pressed {
+            color: #102333;
+            background: #dbeaf6;
+        }
         QCheckBox { spacing: 7px; color: #d5e0e9; }
         QCheckBox::indicator { width: 17px; height: 17px; }
         QCheckBox::indicator:unchecked {
@@ -824,7 +968,7 @@ void MainWindow::buildUi()
 
     m_portCombo = new QComboBox(this);
     m_portCombo->setObjectName(QStringLiteral("portSelector"));
-    m_portCombo->setMinimumWidth(220);
+    m_portCombo->setMinimumWidth(170);
     m_portCombo->setEditable(true);
     m_portCombo->setToolTip(QStringLiteral(
         "USB UART portu. macOS'ta /dev/cu.usb... tercih edilir; /dev/tty.usb... da desteklenir."));
@@ -854,6 +998,11 @@ void MainWindow::buildUi()
     m_openLogButton = new QPushButton(QStringLiteral("Senaryo Logu Ac"), this);
     m_openLogButton->setObjectName(QStringLiteral("openLogButton"));
     m_openLogButton->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton));
+    m_rinexUpdateButton = new QPushButton(QStringLiteral("RINEX Guncelle"), this);
+    m_rinexUpdateButton->setObjectName(QStringLiteral("rinexUpdateButton"));
+    m_rinexUpdateButton->setIcon(style()->standardIcon(QStyle::SP_BrowserReload));
+    m_rinexUpdateButton->setToolTip(QStringLiteral(
+        "BKG/IGS arsivinden guncel GPS RINEX navigasyon verisini yeniden indir"));
 
     m_autoFollowCheck = new QCheckBox(QStringLiteral("Kamerayi takip et"), this);
     m_autoFollowCheck->setChecked(true);
@@ -874,6 +1023,7 @@ void MainWindow::buildUi()
     toolbarLayout->addWidget(m_maxPointsSpin);
     toolbarLayout->addWidget(m_connectButton);
     toolbarLayout->addWidget(m_openLogButton);
+    toolbarLayout->addWidget(m_rinexUpdateButton);
     toolbarLayout->addWidget(m_clearButton);
     toolbarLayout->addWidget(m_autoFollowCheck);
     toolbarLayout->addWidget(zoomOutButton);
@@ -907,7 +1057,7 @@ void MainWindow::buildUi()
     viewTabs->addTab(globeTab, QStringLiteral("3B Dunya · Uydular"));
 
     auto *sidePanel = new QWidget(this);
-    sidePanel->setMinimumWidth(390);
+    sidePanel->setMinimumWidth(330);
     auto *sideOuterLayout = new QVBoxLayout(sidePanel);
     sideOuterLayout->setContentsMargins(8, 0, 0, 0);
     sideOuterLayout->setSpacing(0);
@@ -1109,7 +1259,11 @@ void MainWindow::buildUi()
     connect(m_connectButton, &QPushButton::clicked, this, &MainWindow::toggleSerial);
     connect(m_clearButton, &QPushButton::clicked, this, &MainWindow::clearPoints);
     connect(m_openLogButton, &QPushButton::clicked, this, &MainWindow::openTelemetryLog);
-    connect(refreshPortsButton, &QToolButton::clicked, this, &MainWindow::refreshSerialPorts);
+    connect(m_rinexUpdateButton, &QPushButton::clicked, m_rinex, &RinexNavigation::refresh);
+    connect(refreshPortsButton, &QToolButton::clicked, this, [this] {
+        m_portsInitialized = false;
+        refreshSerialPorts();
+    });
     connect(m_maxPointsSpin, qOverload<int>(&QSpinBox::valueChanged), this,
             &MainWindow::trimToMaxPoints);
     connect(m_autoFollowCheck, &QCheckBox::toggled, m_map, &MapWidget::setAutoFollow);

src/MainWindow.h

@@ -18,6 +18,7 @@ class QPushButton;
 class QSpinBox;
 class QTableView;
 class QTimer;
+class QCloseEvent;
 
 class MapWidget;
 class GlobeWidget;
@@ -32,6 +33,9 @@ public:
     explicit MainWindow(QWidget *parent = nullptr);
     bool loadTelemetryLog(const QString &filePath);
 
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
 private slots:
     void toggleSerial();
     void clearPoints();
@@ -47,6 +51,9 @@ private slots:
 
 private:
     void buildUi();
+    void buildMenus();
+    void loadSettings();
+    void saveSettings() const;
     void updateConnectionControls();
     void addTelemetryPoint(const ParsedTelemetry &telemetry);
     void refreshTable();
@@ -74,6 +81,7 @@ private:
     QPushButton *m_connectButton = nullptr;
     QPushButton *m_clearButton = nullptr;
     QPushButton *m_openLogButton = nullptr;
+    QPushButton *m_rinexUpdateButton = nullptr;
     QPushButton *m_refreshRinexButton = nullptr;
     QCheckBox *m_autoFollowCheck = nullptr;
     QCheckBox *m_showTelemetryCheck = nullptr;
@@ -98,6 +106,7 @@ private:
     QPlainTextEdit *m_log = nullptr;
     QTimer *m_locationTimeoutTimer = nullptr;
     QTimer *m_uiRefreshTimer = nullptr;
+    QTimer *m_portRefreshTimer = nullptr;
 
     QVector<TelemetryPoint> m_points;
     QStringList m_pendingLogLines;
@@ -108,4 +117,6 @@ private:
     DopValues m_lastDop;
     ParsedTelemetry m_pendingTelemetry;
     bool m_telemetryRefreshPending = false;
+    bool m_portsInitialized = false;
+    QStringList m_lastDetectedPorts;
 };

src/MapWidget.cpp

@@ -4,6 +4,7 @@
 #include <QLabel>
 #include <QLineF>
 #include <QMouseEvent>
+#include <QNativeGestureEvent>
 #include <QNetworkAccessManager>
 #include <QNetworkDiskCache>
 #include <QNetworkRequest>
@@ -52,27 +53,13 @@ double metersPerPixel(double latitude, int zoom)
     return latitudeScale * 2.0 * Pi * WebMercatorRadiusMeters / scale;
 }
 
-int preferredCurrentPointIndex(const QVector<TelemetryPoint> &points)
-{
-    constexpr qint64 CorrectedPreferenceWindowMs = 1000;
-    const int newestIndex = points.size() - 1;
-    for (int index = points.size() - 1; index >= 0; --index) {
-        if (points[index].source == LocationSource::ImuCorrected) {
-            const qint64 ageMs = points[index].receivedAt.msecsTo(
-                points[newestIndex].receivedAt);
-            return ageMs <= CorrectedPreferenceWindowMs ? index : newestIndex;
-        }
-    }
-    return newestIndex;
-}
-
 } // namespace
 
 MapWidget::MapWidget(QWidget *parent)
     : QWidget(parent)
     , m_network(new QNetworkAccessManager(this))
 {
-    setMinimumSize(640, 420);
+    setMinimumSize(480, 320);
     setMouseTracking(true);
 
     const QString cacheRoot = QStandardPaths::writableLocation(QStandardPaths::CacheLocation);
@@ -104,9 +91,9 @@ void MapWidget::setPoints(const QVector<TelemetryPoint> &points)
     m_points = points;
 
     if (!m_points.isEmpty() && m_autoFollow) {
-        const TelemetryPoint &current = m_points[preferredCurrentPointIndex(m_points)];
+        const TelemetryPoint &focus = m_points[preferredFocusIndex()];
-        m_centerLat = current.latitude;
+        m_centerLat = focus.latitude;
-        m_centerLon = current.longitude;
+        m_centerLon = focus.longitude;
         if (wasEmpty) {
             m_zoom = MaxZoom;
         }
@@ -129,23 +116,55 @@ void MapWidget::fitToPoints()
     }
     double minimumLatitude = m_points.first().latitude;
     double maximumLatitude = minimumLatitude;
-    double minimumLongitude = m_points.first().longitude;
+    QVector<double> longitudes;
-    double maximumLongitude = minimumLongitude;
+    longitudes.reserve(m_points.size());
     for (const TelemetryPoint &point : m_points) {
         minimumLatitude = std::min(minimumLatitude, point.latitude);
         maximumLatitude = std::max(maximumLatitude, point.latitude);
-        minimumLongitude = std::min(minimumLongitude, point.longitude);
+        double normalizedLongitude = std::fmod(point.longitude + 360.0, 360.0);
-        maximumLongitude = std::max(maximumLongitude, point.longitude);
+        if (normalizedLongitude < 0.0) {
+            normalizedLongitude += 360.0;
+        }
+        longitudes.push_back(normalizedLongitude);
+    }
+    std::sort(longitudes.begin(), longitudes.end());
+
+    // Fit the shortest circular longitude interval. A plain min/max makes
+    // points around +180/-180 look almost a full world apart.
+    double arcStart = longitudes.first();
+    double longitudeSpan = 0.0;
+    if (longitudes.size() > 1) {
+        double largestGap = -1.0;
+        int largestGapIndex = 0;
+        for (int i = 0; i < longitudes.size(); ++i) {
+            const double current = longitudes[i];
+            const double next = i + 1 < longitudes.size()
+                ? longitudes[i + 1] : longitudes.first() + 360.0;
+            const double gap = next - current;
+            if (gap > largestGap) {
+                largestGap = gap;
+                largestGapIndex = i;
+            }
+        }
+        arcStart = largestGapIndex + 1 < longitudes.size()
+            ? longitudes[largestGapIndex + 1] : longitudes.first();
+        longitudeSpan = 360.0 - largestGap;
     }
     m_centerLat = 0.5 * (minimumLatitude + maximumLatitude);
-    m_centerLon = 0.5 * (minimumLongitude + maximumLongitude);
+    m_centerLon = std::fmod(arcStart + longitudeSpan * 0.5 + 180.0, 360.0);
+    if (m_centerLon < 0.0) {
+        m_centerLon += 360.0;
+    }
+    m_centerLon -= 180.0;
     const double availableWidth = std::max(100.0, width() * 0.82);
     const double availableHeight = std::max(100.0, height() * 0.82);
     for (int zoom = MaxZoom; zoom >= MinZoom; --zoom) {
-        const QPointF topLeft = coordinateToWorld(maximumLatitude, minimumLongitude, zoom);
+        const double worldWidth = static_cast<double>(TileSize) * static_cast<double>(1 << zoom);
-        const QPointF bottomRight = coordinateToWorld(minimumLatitude, maximumLongitude, zoom);
+        const double longitudeWidth = longitudeSpan / 360.0 * worldWidth;
-        if (std::fabs(bottomRight.x() - topLeft.x()) <= availableWidth
+        const double top = coordinateToWorld(maximumLatitude, m_centerLon, zoom).y();
-            && std::fabs(bottomRight.y() - topLeft.y()) <= availableHeight) {
+        const double bottom = coordinateToWorld(minimumLatitude, m_centerLon, zoom).y();
+        if (longitudeWidth <= availableWidth
+            && std::fabs(bottom - top) <= availableHeight) {
             m_zoom = zoom;
             break;
         }
@@ -218,9 +237,9 @@ void MapWidget::setAutoFollow(bool enabled)
 
     m_autoFollow = enabled;
     if (m_autoFollow && !m_points.isEmpty()) {
-        const TelemetryPoint &current = m_points[preferredCurrentPointIndex(m_points)];
+        const TelemetryPoint &focus = m_points[preferredFocusIndex()];
-        m_centerLat = current.latitude;
+        m_centerLat = focus.latitude;
-        m_centerLon = current.longitude;
+        m_centerLon = focus.longitude;
         update();
     }
     emit autoFollowChanged(m_autoFollow);
@@ -279,16 +298,52 @@ void MapWidget::paintEvent(QPaintEvent *)
 
 void MapWidget::wheelEvent(QWheelEvent *event)
 {
-    const int delta = event->angleDelta().y();
+    const QPoint pixelDelta = event->pixelDelta();
-    if (delta == 0) {
+    const QPoint angleDelta = event->angleDelta();
+    const double delta = !pixelDelta.isNull()
+        ? pixelDelta.y() / 36.0
+        : angleDelta.y() / 120.0;
+    if (qFuzzyIsNull(delta)) {
         return;
     }
 
     disableAutoFollowFromUserAction();
-    setZoomKeepingPoint(m_zoom + (delta > 0 ? 1 : -1), event->position());
+    m_wheelZoomAccumulator += delta;
+    while (std::abs(m_wheelZoomAccumulator) >= 1.0) {
+        const int direction = m_wheelZoomAccumulator > 0.0 ? 1 : -1;
+        setZoomKeepingPoint(m_zoom + direction, event->position());
+        m_wheelZoomAccumulator -= direction;
+    }
+    if (event->phase() == Qt::ScrollEnd) {
+        m_wheelZoomAccumulator = 0.0;
+    }
     event->accept();
 }
 
+bool MapWidget::event(QEvent *event)
+{
+    if (event->type() == QEvent::NativeGesture) {
+        auto *gesture = static_cast<QNativeGestureEvent *>(event);
+        if (gesture->gestureType() == Qt::ZoomNativeGesture) {
+            disableAutoFollowFromUserAction();
+            // macOS reports pinch magnification as small deltas. Accumulate
+            // them so map-tile zoom remains stable instead of flickering.
+            m_wheelZoomAccumulator += gesture->value() * 5.0;
+            while (std::abs(m_wheelZoomAccumulator) >= 1.0) {
+                const int direction = m_wheelZoomAccumulator > 0.0 ? 1 : -1;
+                setZoomKeepingPoint(m_zoom + direction, gesture->position());
+                m_wheelZoomAccumulator -= direction;
+            }
+            gesture->accept();
+            return true;
+        }
+        if (gesture->gestureType() == Qt::EndNativeGesture) {
+            m_wheelZoomAccumulator = 0.0;
+        }
+    }
+    return QWidget::event(event);
+}
+
 void MapWidget::mousePressEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::RightButton) {
@@ -472,11 +527,10 @@ void MapWidget::drawTelemetry(QPainter &painter)
     drawCepMarker(painter);
 
     const bool drawNumbers = m_points.size() <= 150;
-    const int currentPointIndex = preferredCurrentPointIndex(m_points);
+    const int focusIndex = preferredFocusIndex();
-    const int firstPoint = m_showRecentPoints ? 0 : currentPointIndex;
+    for (int i = 0; i < m_points.size(); ++i) {
-    const int endPoint = m_showRecentPoints ? m_points.size() : currentPointIndex + 1;
+        if (!m_showRecentPoints && i != focusIndex) continue;
-    for (int i = firstPoint; i < endPoint; ++i) {
+        const bool isLast = i == focusIndex;
-        const bool isLast = i == currentPointIndex;
         const QPointF screen = coordinateToScreen(m_points[i].latitude, m_points[i].longitude);
         const double radius = isLast ? 8.0 : 5.0;
 
@@ -499,7 +553,7 @@ void MapWidget::drawTelemetry(QPainter &painter)
         }
     }
 
-    const TelemetryPoint &last = m_points[currentPointIndex];
+    const TelemetryPoint &last = m_points[focusIndex];
     const QPointF lastScreen = coordinateToScreen(last.latitude, last.longitude);
     QStringList lines;
     const QString latitudeText = last.latitudeText.isEmpty()
@@ -607,9 +661,10 @@ void MapWidget::drawCepMarker(QPainter &painter)
     painter.drawLine(QPointF(screen.x(), screen.y() - 11.0),
                      QPointF(screen.x(), screen.y() + 11.0));
 
-    const bool overlapsLast = !m_points.isEmpty()
+    const int focusIndex = preferredFocusIndex();
-        && QLineF(screen, coordinateToScreen(m_points.last().latitude,
+    const bool overlapsLast = focusIndex >= 0
-                                             m_points.last().longitude)).length() < 30.0;
+        && QLineF(screen, coordinateToScreen(m_points[focusIndex].latitude,
+                                             m_points[focusIndex].longitude)).length() < 30.0;
     if (!overlapsLast) {
         painter.setFont(QFont(painter.font().family(), 9, QFont::Bold));
         painter.setPen(QColor(20, 83, 78));
@@ -643,9 +698,10 @@ void MapWidget::drawAverageOverlay(QPainter &painter)
     painter.drawLine(QPointF(screen.x() - 12.0, screen.y()), QPointF(screen.x() + 12.0, screen.y()));
     painter.drawLine(QPointF(screen.x(), screen.y() - 12.0), QPointF(screen.x(), screen.y() + 12.0));
 
-    const bool overlapsLast = !m_points.isEmpty()
+    const int focusIndex = preferredFocusIndex();
-        && QLineF(screen, coordinateToScreen(m_points.last().latitude,
+    const bool overlapsLast = focusIndex >= 0
-                                             m_points.last().longitude)).length() < 30.0;
+        && QLineF(screen, coordinateToScreen(m_points[focusIndex].latitude,
+                                             m_points[focusIndex].longitude)).length() < 30.0;
     if (!overlapsLast) {
         painter.setFont(QFont(painter.font().family(), 9, QFont::Bold));
         const QRectF labelRect(screen + QPointF(12.0, 8.0), QSizeF(72.0, 20.0));
@@ -725,3 +781,17 @@ void MapWidget::disableAutoFollowFromUserAction()
     m_autoFollow = false;
     emit autoFollowChanged(false);
 }
+
+int MapWidget::preferredFocusIndex() const
+{
+    constexpr qint64 CorrectedPreferenceWindowMs = 1000;
+    const int newestIndex = m_points.size() - 1;
+    for (int index = m_points.size() - 1; index >= 0; --index) {
+        if (m_points[index].source == LocationSource::ImuCorrected) {
+            const qint64 ageMs = m_points[index].receivedAt.msecsTo(
+                m_points[newestIndex].receivedAt);
+            return ageMs <= CorrectedPreferenceWindowMs ? index : newestIndex;
+        }
+    }
+    return newestIndex;
+}

src/MapWidget.h

@@ -42,6 +42,7 @@ signals:
     void referenceLocationSelected(double latitude, double longitude);
 
 protected:
+    bool event(QEvent *event) override;
     void paintEvent(QPaintEvent *event) override;
     void wheelEvent(QWheelEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
@@ -66,6 +67,7 @@ private:
     void requestTile(int tileX, int tileY, int zoom);
     void setZoomKeepingPoint(int newZoom, const QPointF &screenAnchor);
     void disableAutoFollowFromUserAction();
+    int preferredFocusIndex() const;
 
     QVector<TelemetryPoint> m_points;
     QNetworkAccessManager *m_network = nullptr;
@@ -90,4 +92,5 @@ private:
     std::optional<double> m_cepRadiusMeters;
     bool m_dragging = false;
     QPoint m_lastMousePos;
+    double m_wheelZoomAccumulator = 0.0;
 };

src/RinexNavigation.cpp

@@ -6,6 +6,7 @@
 #include <QNetworkReply>
 #include <QNetworkRequest>
 #include <QStandardPaths>
+#include <QTimeZone>
 #include <QUrl>
 
 #include <zlib.h>
@@ -148,7 +149,9 @@ void RinexNavigation::handleDownload(const QByteArray &compressed, const QDate &
             return;
         }
         setLoading(false);
-        emit statusChanged(QStringLiteral("RINEX okunamadi: %1").arg(error), true);
+        if (!loadCache()) {
+            emit statusChanged(QStringLiteral("RINEX okunamadi: %1").arg(error), true);
+        }
         return;
     }
 
@@ -158,10 +161,11 @@ void RinexNavigation::handleDownload(const QByteArray &compressed, const QDate &
     m_ephemerides = std::move(ephemerides);
     setLoading(false);
     publishCurrentMotion();
-    emit statusChanged(QStringLiteral("%1 GPS uydusu · RINEX %2 · %3 UTC")
+    emit statusChanged(QStringLiteral("%1 GPS uydusu · RINEX %2 · %3")
                            .arg(positions.size())
                            .arg(date.toString(QStringLiteral("dd.MM.yyyy")))
-                           .arg(now.time().toString(QStringLiteral("HH:mm:ss"))), false);
+                           .arg(now.toLocalTime().toString(
+                               QStringLiteral("HH:mm:ss t"))), false);
 }
 
 bool RinexNavigation::loadCache()
@@ -176,9 +180,10 @@ bool RinexNavigation::loadCache()
     if (positions.isEmpty()) return false;
     m_ephemerides = std::move(ephemerides);
     publishCurrentMotion();
-    emit statusChanged(QStringLiteral("%1 GPS uydusu · onbellekteki RINEX · %2 UTC")
+    emit statusChanged(QStringLiteral("%1 GPS uydusu · onbellekteki RINEX · %2")
                            .arg(positions.size())
-                           .arg(now.time().toString(QStringLiteral("HH:mm:ss"))), true);
+                           .arg(now.toLocalTime().toString(
+                               QStringLiteral("HH:mm:ss t"))), false);
     return true;
 }
 

tests/main_window_tests.cpp

@@ -3,6 +3,7 @@
 #include "../src/MapWidget.h"
 
 #include <QApplication>
+#include <QAction>
 #include <QCheckBox>
 #include <QComboBox>
 #include <QDoubleSpinBox>
@@ -17,6 +18,7 @@
 #include <QTemporaryFile>
 
 #include <cassert>
+#include <cmath>
 
 namespace {
 
@@ -58,6 +60,10 @@ int main(int argc, char **argv)
     auto *map = window.findChild<MapWidget *>();
     auto *mainViewTabs = window.findChild<QTabWidget *>(QStringLiteral("mainViewTabs"));
     auto *sideSplitter = window.findChild<QSplitter *>(QStringLiteral("sideSplitter"));
+    auto *rinexUpdateButton = window.findChild<QPushButton *>(QStringLiteral("rinexUpdateButton"));
+    auto *openLogAction = window.findChild<QAction *>(QStringLiteral("openLogAction"));
+    auto *toggleSerialAction = window.findChild<QAction *>(QStringLiteral("toggleSerialAction"));
+    auto *rinexUpdateAction = window.findChild<QAction *>(QStringLiteral("rinexUpdateAction"));
     assert(table != nullptr);
     assert(referenceLatInput != nullptr);
     assert(referenceLonInput != nullptr);
@@ -88,14 +94,40 @@ int main(int argc, char **argv)
     assert(mainViewTabs->count() == 2);
     assert(sideSplitter != nullptr);
     assert(sideSplitter->orientation() == Qt::Vertical);
+    assert(rinexUpdateButton != nullptr);
+    assert(!rinexUpdateButton->toolTip().isEmpty());
+    assert(openLogAction != nullptr && !openLogAction->shortcut().isEmpty());
+    assert(toggleSerialAction != nullptr && !toggleSerialAction->shortcut().isEmpty());
+    assert(rinexUpdateAction != nullptr && !rinexUpdateAction->shortcut().isEmpty());
 
-    sendLine(window, QStringLiteral("[TRK] tracked satellites=2 prns=[3,8]"));
+    QVector<TelemetryPoint> followPoints;
+    TelemetryPoint gpsPoint;
+    gpsPoint.source = LocationSource::Gps;
+    gpsPoint.latitude = 40.0;
+    gpsPoint.longitude = 29.0;
+    followPoints.push_back(gpsPoint);
+    TelemetryPoint correctedPoint = gpsPoint;
+    correctedPoint.source = LocationSource::ImuCorrected;
+    correctedPoint.latitude = 40.25;
+    correctedPoint.longitude = 29.5;
+    followPoints.push_back(correctedPoint);
+    TelemetryPoint trajectoryPoint = gpsPoint;
+    trajectoryPoint.source = LocationSource::Trajectory;
+    trajectoryPoint.latitude = 41.0;
+    trajectoryPoint.longitude = 30.0;
+    followPoints.push_back(trajectoryPoint);
+    map->setPoints(followPoints);
+    assert(std::abs(map->centerCoordinate().x() - 40.25) < 0.000001);
+    assert(std::abs(map->centerCoordinate().y() - 29.5) < 0.000001);
+    map->clearPoints();
+
+    sendLine(window, QStringLiteral("[TRK] tracked satellites=2 prn_indices=[2,7]"));
     assert(map != nullptr);
     auto *globe = window.findChild<GlobeWidget *>();
     assert(globe != nullptr);
     assert(globe->observedPrns()
            == QSet<QString>({QStringLiteral("G03"), QStringLiteral("G08")}));
-    sendLine(window, QStringLiteral("[TRK] tracked satellites=1 prns=[14]"));
+    sendLine(window, QStringLiteral("[TRK] tracked satellites=1 prn_indices=[13]"));
     assert(globe->observedPrns() == QSet<QString>({QStringLiteral("G14")}));
 
     assert(QMetaObject::invokeMethod(map, "referenceLocationSelected", Qt::DirectConnection,
@@ -155,6 +187,24 @@ int main(int argc, char **argv)
     assert(table->model()->data(table->model()->index(0, 1)).toString()
            == QStringLiteral("Trajectory (truth)"));
 
+    QTemporaryFile splitReplayLog;
+    assert(splitReplayLog.open());
+    splitReplayLog.write("latitude: 40.25\nlongitude: 29.50\n");
+    splitReplayLog.flush();
+    assert(window.loadTelemetryLog(splitReplayLog.fileName()));
+    assert(table->model()->rowCount() == 1);
+
+    // A partial fix from an earlier solve must not be completed using a field
+    // from the following solve.
+    assert(QMetaObject::invokeMethod(&window, "clearPoints", Qt::DirectConnection));
+    sendLine(window, QStringLiteral("NAV solve start"));
+    sendLine(window, QStringLiteral("latitude: 40.0"));
+    sendLine(window, QStringLiteral("NAV solve start"));
+    sendLine(window, QStringLiteral("longitude: 29.0"));
+    sendLine(window, QStringLiteral("NAV solve done"));
+    flushUpdates(window);
+    assert(table->model()->rowCount() == 0);
+
     assert(QMetaObject::invokeMethod(&window, "clearPoints", Qt::DirectConnection));
     sendLine(window, QStringLiteral(
         "lat=40.78925034214206846173 long=29.46277530841727809729"));

tests/parser_tests.cpp

@@ -186,6 +186,25 @@ int main(int argc, char **argv)
         assert(prns == QSet<QString>({QStringLiteral("G01"), QStringLiteral("G32")}));
     }
 
+    {
+        const QSet<QString> prns = LocationParser::parseGpsPrns(
+            QStringLiteral("[TRK] tracked satellites=3 prn_indices=[0,7,31]"));
+        assert(prns == QSet<QString>({QStringLiteral("G01"), QStringLiteral("G08"),
+                                     QStringLiteral("G32")}));
+    }
+
+    {
+        const QSet<QString> prns = LocationParser::parseGpsPrns(
+            QStringLiteral("[TRK] tracked satellites=2 prns=[0,7]"));
+        assert(prns == QSet<QString>({QStringLiteral("G01"), QStringLiteral("G08")}));
+    }
+
+    {
+        const QSet<QString> prns = LocationParser::parseGpsPrns(
+            QStringLiteral("[TRK] tracked satellites=2 prn_indices=[0,G08]"));
+        assert(prns == QSet<QString>({QStringLiteral("G01"), QStringLiteral("G08")}));
+    }
+
     {
         const auto parsed = LocationParser::parseLine(QStringLiteral(
             "[OK] [NAV] DOP GDOP=7.0907891622 PDOP=5.6333862175 "
@@ -257,6 +276,17 @@ int main(int argc, char **argv)
         assert(closeTo(satellites[0].x, semiMajorAxis * std::cos(node), 0.1));
         assert(closeTo(satellites[0].y, semiMajorAxis * std::sin(node), 0.1));
         assert(closeTo(satellites[0].z, 0.0, 0.1));
+
+        // A local wall-clock representation must not move the satellites.
+        // 11:48 at UTC+03 and 08:48 UTC represent the same physical instant.
+        const auto localTimeSatellites = RinexNavigation::parseGpsNavigation(
+            syntheticGpsNavigation(gpsLabel, gpsWeek, toe),
+            matchingUtc.toOffsetFromUtc(3 * 60 * 60), &error);
+        assert(error.isEmpty());
+        assert(localTimeSatellites.size() == satellites.size());
+        assert(closeTo(localTimeSatellites[0].x, satellites[0].x, 0.001));
+        assert(closeTo(localTimeSatellites[0].y, satellites[0].y, 0.001));
+        assert(closeTo(localTimeSatellites[0].z, satellites[0].z, 0.001));
     }
 
     const QString rinexPath = qEnvironmentVariable("LOCATION_PLOTTER_TEST_RINEX");