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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtCharts 2.0
+import QtQuick.XmlListModel 2.0
+
+Rectangle {
+ width: 400
+ height: 300
+ property int currentIndex: -1
+
+ //![1]
+ ChartView {
+ id: chartView
+ title: "Driver Speeds, lap 1"
+ anchors.fill: parent
+ legend.alignment: Qt.AlignTop
+ animationOptions: ChartView.SeriesAnimations
+ antialiasing: true
+ }
+ //![1]
+
+ //![2]
+ // An example XmlListModel containing F1 legend drivers' speeds at speed traps
+ SpeedsXml {
+ id: speedsXml
+ onStatusChanged: {
+ if (status == XmlListModel.Ready) {
+ timer.start();
+ }
+ }
+ }
+ //![2]
+
+ //![3]
+ // A timer to mimic refreshing the data dynamically
+ Timer {
+ id: timer
+ interval: 700
+ repeat: true
+ triggeredOnStart: true
+ running: false
+ onTriggered: {
+ currentIndex++;
+ if (currentIndex < speedsXml.count) {
+ // Check if there is a series for the data already (we are using driver name to identify series)
+ var lineSeries = chartView.series(speedsXml.get(currentIndex).driver);
+ if (!lineSeries) {
+ lineSeries = chartView.createSeries(ChartView.SeriesTypeLine, speedsXml.get(currentIndex).driver);
+ chartView.axisY().min = 0;
+ chartView.axisY().max = 250;
+ chartView.axisY().tickCount = 6;
+ chartView.axisY().titleText = "speed (kph)";
+ chartView.axisX().titleText = "speed trap";
+ chartView.axisX().labelFormat = "%.0f";
+ }
+ lineSeries.append(speedsXml.get(currentIndex).speedTrap, speedsXml.get(currentIndex).speed);
+
+ if (speedsXml.get(currentIndex).speedTrap > 3) {
+ chartView.axisX().max = Number(speedsXml.get(currentIndex).speedTrap) + 1;
+ chartView.axisX().min = chartView.axisX().max - 5;
+ } else {
+ chartView.axisX().max = 5;
+ chartView.axisX().min = 0;
+ }
+ chartView.axisX().tickCount = chartView.axisX().max - chartView.axisX().min + 1;
+ } else {
+ // No more data, change x-axis range to show all the data
+ timer.stop();
+ chartView.animationOptions = ChartView.AllAnimations;
+ chartView.axisX().min = 0;
+ chartView.axisX().max = speedsXml.get(currentIndex - 1).speedTrap;
+ }
+ }
+ }
+ //![3]
+}