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| ** |
| ** Copyright (C) 2019 BogDan Vatra <bogdan@kde.org> |
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| ** This file is part of the QtSensors module of the Qt Toolkit. |
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| |
| #include "androidmagnetometer.h" |
| |
| AndroidMagnetometer::AndroidMagnetometer(int type, QSensor *sensor, QObject *parent) |
| : SensorEventQueue<QMagnetometerReading>(type, sensor, parent) |
| {} |
| |
| void AndroidMagnetometer::dataReceived(const ASensorEvent &event) |
| { |
| const auto &mag = event.magnetic; |
| qreal accuracy = mag.status == ASENSOR_STATUS_NO_CONTACT ? 0 : mag.status / 3.0; |
| // check https://developer.android.com/reference/android/hardware/SensorEvent.html#sensor.type_magnetic_field: |
| // Android uses micro-Tesla, Qt uses Tesla |
| qreal x = qreal(mag.x) / 1e6; |
| qreal y = qreal(mag.y) / 1e6; |
| qreal z = qreal(mag.z) / 1e6; |
| if (sensor()->skipDuplicates() && qFuzzyCompare(accuracy, m_reader.calibrationLevel()) && |
| qFuzzyCompare(x, m_reader.x()) && |
| qFuzzyCompare(y, m_reader.y()) && |
| qFuzzyCompare(z, m_reader.z())) { |
| return; |
| } |
| m_reader.setCalibrationLevel(accuracy); |
| m_reader.setTimestamp(uint64_t(event.timestamp / 1000)); |
| m_reader.setX(x); |
| m_reader.setY(y); |
| m_reader.setZ(z); |
| newReadingAvailable(); |
| } |