Basic static plot

A Plot needs axes and one or more series. Each series names the axes that map its data and optionally supplies a name for the legend.

import QtQuick
import QAccelPlot as QAccelPlot

QAccelPlot.Plot {
    id: plot

    xAxis: QAccelPlot.Axis {
        viewportMin: 0
        viewportMax: 24
        label: "Time of day (h)"
    }

    yAxis: QAccelPlot.Axis {
        viewportMin: 16
        viewportMax: 27
        label: "Temperature (°C)"
    }

    QAccelPlot.LineCurve {
        name: "Measured"
        xAxis: plot.xAxis
        yAxis: plot.yAxis
        color: "tomato"
        lineWidth: 3
        Component.onCompleted: setData([
            Qt.point(0, 18), Qt.point(6, 19.5),
            Qt.point(12, 25), Qt.point(18, 23.5), Qt.point(24, 18)
        ])
    }

    QAccelPlot.LineCurve {
        name: "Forecast"
        xAxis: plot.xAxis
        yAxis: plot.yAxis
        color: "dodgerblue"
        lineWidth: 2
        lineStyle: QAccelPlot.DashLine { pattern: [8, 5] }
        marker.shape: QAccelPlot.MarkerShape.Diamond
        marker.size: 7
    }
}

Plot shows a legend entry for every visible series that has one, and one per category for a series with categories; a heatmap has none, because its color bar is its key. Set legendVisible: false to hide the legend, or assign legend to replace it. Plot.legendModel lists every entry; a LegendModel of your own lists a subset:

legend: QAccelPlot.Legend {
    model: QAccelPlot.LegendModel { series: [measured, fit] }
}

QML setData() suits small or rarely changing data. For large or frequent updates, see Select the data path.

Complete source: examples/quickstart