Qt 5.9 | Qt Charts | Qml Axes | View2.qml Example File

Qt 5.9.3 Reference Documentation

# View2.qml Example File

qmlaxes/qml/qmlaxes/View2.qml

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      import QtQuick 2.0
      import QtCharts 2.0

      Item {
          anchors.fill: parent

          ChartView {
              title: "Accurate Historical Data"
              anchors.fill: parent
              legend.visible: false
              antialiasing: true

              LineSeries {
                  axisX: DateTimeAxis {
                      format: "yyyy MMM"
                      tickCount: 5
                  }
                  axisY: ValueAxis {
                      min: 0
                      max: 150
                  }

                  // Please note that month in JavaScript months are zero based, so 2 means March
                  XYPoint { x: toMsecsSinceEpoch(new Date(1950, 2, 15)); y: 5 }
                  XYPoint { x: toMsecsSinceEpoch(new Date(1970, 0, 1)); y: 50 }
                  XYPoint { x: toMsecsSinceEpoch(new Date(1987, 12, 31)); y: 102 }
                  XYPoint { x: toMsecsSinceEpoch(new Date(1998, 7, 1)); y: 100 }
                  XYPoint { x: toMsecsSinceEpoch(new Date(2012, 8, 2)); y: 110 }
              }
          }

          // DateTimeAxis is based on QDateTimes so we must convert our JavaScript dates to
          // milliseconds since epoch to make them match the DateTimeAxis values
          function toMsecsSinceEpoch(date) {
              var msecs = date.getTime();
              return msecs;
          }
      }