Running the Example▲
To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, visit Building and Running an Example.
Creating Charts Using QML▲
Creating each chart type begins with the creation of a ChartView.
To create a pie, we use the PieSeries API together with a few PieSlices:
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ChartView {
id: chart
title: "Top-5 car brand shares in Finland"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
PieSeries {
id: pieSeries
PieSlice { label: "Volkswagen"; value: 13.5 }
PieSlice { label: "Toyota"; value: 10.9 }
PieSlice { label: "Ford"; value: 8.6 }
PieSlice { label: "Skoda"; value: 8.2 }
PieSlice { label: "Volvo"; value: 6.8 }
}
}
Component.onCompleted: {
// You can also manipulate slices dynamically, like append a slice or set a slice exploded
othersSlice = pieSeries.append("Others", 52.0);
pieSeries.find("Volkswagen").exploded = true;
}To create a chart with a line series:
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ChartView {
title: "Line"
anchors.fill: parent
antialiasing: true
LineSeries {
name: "LineSeries"
XYPoint { x: 0; y: 0 }
XYPoint { x: 1.1; y: 2.1 }
XYPoint { x: 1.9; y: 3.3 }
XYPoint { x: 2.1; y: 2.1 }
XYPoint { x: 2.9; y: 4.9 }
XYPoint { x: 3.4; y: 3.0 }
XYPoint { x: 4.1; y: 3.3 }
}
}And spline series:
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ChartView {
title: "Spline"
anchors.fill: parent
antialiasing: true
SplineSeries {
name: "SplineSeries"
XYPoint { x: 0; y: 0.0 }
XYPoint { x: 1.1; y: 3.2 }
XYPoint { x: 1.9; y: 2.4 }
XYPoint { x: 2.1; y: 2.1 }
XYPoint { x: 2.9; y: 2.6 }
XYPoint { x: 3.4; y: 2.3 }
XYPoint { x: 4.1; y: 3.1 }
}
}Then we create a chart that illustrates the NHL All-Star player selections by using three area series:
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ChartView {
title: "NHL All-Star Team Players"
anchors.fill: parent
antialiasing: true
// Define x-axis to be used with the series instead of default one
ValueAxis {
id: valueAxis
min: 2000
max: 2011
tickCount: 12
labelFormat: "%.0f"
}
AreaSeries {
name: "Russian"
axisX: valueAxis
upperSeries: LineSeries {
XYPoint { x: 2000; y: 1 }
XYPoint { x: 2001; y: 1 }
XYPoint { x: 2002; y: 1 }
XYPoint { x: 2003; y: 1 }
XYPoint { x: 2004; y: 1 }
XYPoint { x: 2005; y: 0 }
XYPoint { x: 2006; y: 1 }
XYPoint { x: 2007; y: 1 }
XYPoint { x: 2008; y: 4 }
XYPoint { x: 2009; y: 3 }
XYPoint { x: 2010; y: 2 }
XYPoint { x: 2011; y: 1 }
}
}
...Then a couple of scatter series:
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ChartView {
title: "Scatters"
anchors.fill: parent
antialiasing: true
ScatterSeries {
id: scatter1
name: "Scatter1"
XYPoint { x: 1.5; y: 1.5 }
XYPoint { x: 1.5; y: 1.6 }
XYPoint { x: 1.57; y: 1.55 }
XYPoint { x: 1.8; y: 1.8 }
XYPoint { x: 1.9; y: 1.6 }
XYPoint { x: 2.1; y: 1.3 }
XYPoint { x: 2.5; y: 2.1 }
}
ScatterSeries {
name: "Scatter2"
XYPoint { x: 2.0; y: 2.0 }
XYPoint { x: 2.0; y: 2.1 }
XYPoint { x: 2.07; y: 2.05 }
XYPoint { x: 2.2; y: 2.9 }
XYPoint { x: 2.4; y: 2.7 }
XYPoint { x: 2.67; y: 2.65 }
}
}
...And a few different bar series:
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ChartView {
title: "Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
BarSeries {
id: mySeries
axisX: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}
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ChartView {
title: "Stacked Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
StackedBarSeries {
id: mySeries
axisX: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}
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ChartView {
title: "Percent Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
PercentBarSeries {
axisX: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}
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ChartView {
title: "Horizontal Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
HorizontalBarSeries {
axisY: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}
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ChartView {
title: "Horizontal Stacked Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
HorizontalStackedBarSeries {
axisY: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}
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ChartView {
title: "Horizontal Percent Bar series"
anchors.fill: parent
legend.alignment: Qt.AlignBottom
antialiasing: true
HorizontalPercentBarSeries {
axisY: BarCategoryAxis { categories: ["2007", "2008", "2009", "2010", "2011", "2012" ] }
BarSet { label: "Bob"; values: [2, 2, 3, 4, 5, 6] }
BarSet { label: "Susan"; values: [5, 1, 2, 4, 1, 7] }
BarSet { label: "James"; values: [3, 5, 8, 13, 5, 8] }
}
}And finally an example demonstrating how to create a donut chart with two pie series:
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ChartView {
id: chart
title: "Production costs"
anchors.fill: parent
legend.visible: false
antialiasing: true
PieSeries {
id: pieOuter
size: 0.96
holeSize: 0.7
PieSlice { id: slice; label: "Alpha"; value: 19511; color: "#99CA53" }
PieSlice { label: "Epsilon"; value: 11105; color: "#209FDF" }
PieSlice { label: "Psi"; value: 9352; color: "#F6A625" }
}
PieSeries {
size: 0.7
id: pieInner
holeSize: 0.25
PieSlice { label: "Materials"; value: 10334; color: "#B9DB8A" }
PieSlice { label: "Employee"; value: 3066; color: "#DCEDC4" }
PieSlice { label: "Logistics"; value: 6111; color: "#F3F9EB" }
PieSlice { label: "Materials"; value: 7371; color: "#63BCE9" }
PieSlice { label: "Employee"; value: 2443; color: "#A6D9F2" }
PieSlice { label: "Logistics"; value: 1291; color: "#E9F5FC" }
PieSlice { label: "Materials"; value: 4022; color: "#F9C36C" }
PieSlice { label: "Employee"; value: 3998; color: "#FCE1B6" }
PieSlice { label: "Logistics"; value: 1332; color: "#FEF5E7" }
}
}
Component.onCompleted: {
// Set the common slice properties dynamically for convenience
for (var i = 0; i < pieOuter.count; i++) {
pieOuter.at(i).labelPosition = PieSlice.LabelOutside;
pieOuter.at(i).labelVisible = true;
pieOuter.at(i).borderWidth = 3;
}
for (var i = 0; i < pieInner.count; i++) {
pieInner.at(i).labelPosition = PieSlice.LabelInsideNormal;
pieInner.at(i).labelVisible = true;
pieInner.at(i).borderWidth = 2;
}
}Additionally, antialiasing is set with the qml property in Qt Quick 2.