Class DdsDataSource

Inheritance Relationships

Base Type

  • public QObject

Class Documentation

class DdsDataSource : public QObject

Test class to generate artificial data.

This class is used as an artificial data source in conjunction with QtChart data structures. This is probably a reminiscent from code examples.

It can generate a set of data and replace the contents of a QAbstractSeries data structure, which is used by QtChart.

Public Functions

explicit DdsDataSource(QObject *parent = nullptr)

Constructor.

Parameters

parent – [in] QObject pointer.

Public Slots

void generateData(int type, int rowCount, int colCount)

Generates random data.

Creates some phony data.

Parameters

  • type – [in] of data, 0 is sine wave, 1 is linearly increasing.

  • rowCount – [in] Number of vectors to create in the list.

  • colCount – [in] Number of data points in a vector.

void update(QAbstractSeries *series)

Updates series with next row of data vector.

For each call it takes the next row of data and increments the row index. The index wraps around to 0.

Parameters

series – [inout] Pointer to series to update.

Private Members

QList<QVector<QPointF>> m_data

Container for generated data. List of vectors.

int m_index

Index in list.