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CosinusProvider.cpp
50 lines | 1.5 KiB | text/x-c | CppLexer
#include "CosinusProvider.h"
#include <Data/DataProviderParameters.h>
#include <Data/ScalarSeries.h>
#include <cmath>
#include <QDateTime>
#include <QThread>
Q_LOGGING_CATEGORY(LOG_CosinusProvider, "CosinusProvider")
std::shared_ptr<IDataSeries>
CosinusProvider::retrieveData(const DataProviderParameters &parameters) const
{
auto dateTime = parameters.m_Time;
auto dataIndex = 0;
// Gets the timerange from the parameters
double freq = 100.0;
double start = dateTime.m_TStart * freq; // 100 htz
double end = dateTime.m_TEnd * freq; // 100 htz
// We assure that timerange is valid
if (end < start) {
std::swap(start, end);
}
// Generates scalar series containing cosinus values (one value per second)
auto scalarSeries
= std::make_shared<ScalarSeries>(end - start, Unit{QStringLiteral("t"), true}, Unit{});
for (auto time = start; time < end; ++time, ++dataIndex) {
const auto timeOnFreq = time / freq;
scalarSeries->setData(dataIndex, timeOnFreq, std::cos(timeOnFreq));
}
return scalarSeries;
}
void CosinusProvider::requestDataLoading(const QVector<SqpDateTime> &dateTimeList)
{
qCDebug(LOG_CosinusProvider()) << "CosinusProvider::requestDataLoading"
<< QThread::currentThread()->objectName();
// NOTE: Try to use multithread if possible
for (const auto &dateTime : dateTimeList) {
auto scalarSeries = this->retrieveData(DataProviderParameters{dateTime});
emit dataProvided(scalarSeries, dateTime);
}
}