1 files changed, 3 insertions, 5 deletions
diff --git a/examples/dbus/remotecontrolledcar/car/car.cpp b/examples/dbus/remotecontrolledcar/car/car.cpp
index 67daac79ba..2de4e6447a 100644
--- a/examples/dbus/remotecontrolledcar/car/car.cpp
+++ b/examples/dbus/remotecontrolledcar/car/car.cpp
@@ -50,9 +50,7 @@
 
 #include "car.h"
 #include <QtWidgets/QtWidgets>
-#include <math.h>
-
-static const double Pi = 3.14159265358979323846264338327950288419717;
+#include <qmath.h>
 
 QRectF Car::boundingRect() const
 {
@@ -135,10 +133,10 @@ void Car::timerEvent(QTimerEvent *event)
     Q_UNUSED(event);
 
     const qreal axelDistance = 54;
-    qreal wheelsAngleRads = (wheelsAngle * Pi) / 180;
+    qreal wheelsAngleRads = qDegreesToRadians(wheelsAngle);
     qreal turnDistance = ::cos(wheelsAngleRads) * axelDistance * 2;
     qreal turnRateRads = wheelsAngleRads / turnDistance;  // rough estimate
-    qreal turnRate = (turnRateRads * 180) / Pi;
+    qreal turnRate = qRadiansToDegrees(turnRateRads);
     qreal rotation = speed * turnRate;
 
     setTransform(QTransform().rotate(rotation), true);