We agreed that a reasonable visualization for the near-sinusoidal data produced by the mock sensor and transmitted via the broadcaster is a line series, where subsequent data points are linearly interpolated. You can choose an alternative visualization if you prefer. The LineSeries QML type (https://doc.qt.io/qt-5.9/qml-qtcharts-lineseries.html) should be contained in a ChartView type (https://doc.qt.io/qt-5.9/qml-qtcharts-chartview.html):
// ReadingsChart.qmlimport QtQuick 2.9import QtCharts 2.2ChartView { id: chartView LineSeries {
id: lineSeries }}
By previewing the QML document with qmlscene, you'll get an empty X/Y chart with a default grid and legend color:
What should we display on the X and ...
