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     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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    39 ****************************************************************************/

    40 

    41 #include <QtCore>

    42 #include <qmagnetometer.h>

    43 

    44 QTM_USE_NAMESPACE

    45 

    46 class MagGeoFilter : public QMagnetometerFilter

    47 {

    48 public:

    49     qtimestamp stamp;

    50     bool filter(QMagnetometerReading *reading)

    51     {

    52         int diff = ( reading->timestamp() - stamp );

    53         stamp = reading->timestamp();

    54         QTextStream out(stdout);

    55         out << QString("Geomagnetic flux density: %1 x").arg(reading->x() * 1000000, 6, 'f', 1)

    56             << QString(" %1 y").arg(reading->y() * 1000000, 6, 'f', 1)

    57             << QString(" %1 z uT").arg(reading->z() * 1000000, 6, 'f', 1)

    58             << QString(" calibration: %1").arg(reading->calibrationLevel(), 3, 'f', 1)

    59             << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 4).arg( 1000000.0 / diff, 4, 'f', 1) << endl;

    60         return false;

    61     }

    62 };

    63 

    64 class MagRawFilter : public QMagnetometerFilter

    65 {

    66 public:

    67     qtimestamp stamp;

    68     bool filter(QMagnetometerReading *reading)

    69     {

    70         int diff = ( reading->timestamp() - stamp );

    71         stamp = reading->timestamp();

    72         QTextStream out(stdout);

    73         out << QString("Raw magnetic flux density: %1 x").arg(reading->x() * 1000000, 6, 'f', 1)

    74             << QString(" %1 y").arg(reading->y() * 1000000, 6, 'f', 1)

    75             << QString(" %1 z uT").arg(reading->z() * 1000000, 6, 'f', 1)

    76             << QString(" calibration: %1").arg(reading->calibrationLevel(), 3, 'f', 1)

    77             << QString(" (%1 ms since last, %2 Hz)").arg(diff / 1000, 4).arg( 1000000.0 / diff, 4, 'f', 1) << endl;

    78         return false;

    79     }

    80 };

    81 

    82 int main(int argc, char **argv)

    83 {

    84     QCoreApplication app(argc, argv);

    85 

    86 

    87     QMagnetometer geosensor;

    88     if (!geosensor.connectToBackend()) {

    89         qWarning("No magnetometer available!");

    90         return 1;

    91     }

    92     MagGeoFilter geofilter;

    93     geosensor.setProperty("returnGeoValues", true);

    94     geosensor.addFilter(&geofilter);

    95     geosensor.start();

    96 

    97 /*

    98     QMagnetometer rawsensor;

    99     if (!rawsensor.connectToBackend()) {

   100         qWarning("No magnetometer available!");

   101         return 1;

   102     }

   103     MagRawFilter rawfilter;

   104     rawsensor.addFilter(&rawfilter);

   105     rawsensor.start();

   106 */

   107     return app.exec();

   108 }