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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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29
30#include "charts.h"
31#include <QtCharts/QChart>
32#include <QtCharts/QBarSeries>
33#include <QtCharts/QBarSet>
34#include <QtCharts/QLogValueAxis>
35#include <QtCharts/QBarCategoryAxis>
36
37class BarLogY: public Chart
38{
39public:
40 QString name() { return "Bar"; }
41 QString category() { return QObject::tr(s: "Domain"); }
42 QString subCategory() { return "Vertical Log"; }
43
44 QChart *createChart(const DataTable &table)
45 {
46 QChart *chart = new QChart();
47 chart->setTitle("Bar: BarCateogry X, Log Y");
48
49 QString name("Series ");
50 QBarSeries *series = new QBarSeries(chart);
51 QLogValueAxis *logvalueaxis = new QLogValueAxis();
52 logvalueaxis->setBase(2);
53 QBarCategoryAxis *barcategory = new QBarCategoryAxis();
54 for (int i(0); i < table.count(); i++) {
55 QBarSet *set = new QBarSet("Bar set " + QString::number(i));
56 foreach (Data data, table[i])
57 *set << data.first.y();
58 series->append(set);
59 }
60 chart->addSeries(series);
61
62 int count = series->barSets().first()->count();
63
64
65 for (int i = 0; i < count; i++) {
66 barcategory->append(category: "BarSet " + QString::number(i));
67 }
68
69 chart->setAxisY(axis: logvalueaxis, series);
70 chart->setAxisX(axis: barcategory, series);
71
72 return chart;
73 }
74};
75
76DECLARE_CHART(BarLogY);
77

source code of qtcharts/tests/manual/chartviewer/charts/domain/barlogy.cpp