##// END OF EJS Templates
QSplineSeries calculateControlPoints moved to splinechartitem. This way we don't need to deal with controlPoints on logaritmic scale
QSplineSeries calculateControlPoints moved to splinechartitem. This way we don't need to deal with controlPoints on logaritmic scale

File last commit:

r2099:dacd8b696e6b
r2372:d6a999e30ac3
Show More
areachart.cpp
65 lines | 2.2 KiB | text/x-c | CppLexer
Michal Klocek
Adds charts to chartsviewer
r1753 /****************************************************************************
**
** Copyright (C) 2012 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 Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "charts.h"
#include "qchart.h"
#include "qareaseries.h"
#include "qlineseries.h"
class AreaChart: public Chart
{
public:
QString name() { return QObject::tr("AreaChart"); }
QString category() { return QObject::tr("XYSeries"); }
QString subCategory() { return QString::null; }
Jani Honkonen
coding style fixes for demos
r2099 QChart *createChart(const DataTable &table)
Michal Klocek
Adds charts to chartsviewer
r1753 {
QChart *chart = new QChart();
chart->setTitle("Area chart");
// The lower series initialized to zero values
QLineSeries *lowerSeries = 0;
QString name("Series ");
int nameIndex = 0;
for (int i(0); i < table.count(); i++) {
QLineSeries *upperSeries = new QLineSeries(chart);
for (int j(0); j < table[i].count(); j++) {
Data data = table[i].at(j);
if (lowerSeries) {
const QList<QPointF>& points = lowerSeries->points();
upperSeries->append(QPointF(j, points[i].y() + data.first.y()));
Jani Honkonen
coding style fixes for demos
r2099 } else {
Michal Klocek
Adds charts to chartsviewer
r1753 upperSeries->append(QPointF(j, data.first.y()));
Jani Honkonen
coding style fixes for demos
r2099 }
Michal Klocek
Adds charts to chartsviewer
r1753 }
QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries);
area->setName(name + QString::number(nameIndex));
nameIndex++;
chart->addSeries(area);
chart->createDefaultAxes();
lowerSeries = upperSeries;
}
return chart;
}
};
DECLARE_CHART(AreaChart)