2024-07-12
한어Русский языкEnglishFrançaisIndonesianSanskrit日本語DeutschPortuguêsΕλληνικάespañolItalianoSuomalainenLatina
Qt linea chart est genus chartularum pro notitia visualizationis in compage Qt adhibita. Patet potest ostendere inclinationem notitiarum mutationes super tempus vel alios factores. Prooemium est ad Qt linea chart:
1. notiones fundamentales
2. exsequendam modum
QPainter
、QPen
etQBrush
classis ad complendum.QPainter
Ad delineandam machinas ut QWidget, QImage vel QPixmap, dumQPen
etQBrush
Pone lineam stilum et reple stilum separatim.QLineSeries
genus principale genus lineae chartis ad creandum usus est.3. Ritus gradus
QChart
etQLineSeries
and other classes to create line chart instances.Adde paravit data toQLineSeries
in obiecto.QChartView
repugno , et adde illud ad interface.4. Cautiones
Ad summam, Qt linea chart est instrumentum validum et flexibile datae visualizationis, variis missionibus aptae, quae necessitatem ostendunt data mutatione trends. Delineandis generibus et chartis bibliothecis a Qt rite adhibitis, facile potes chartulas lineas pulchras et practicas creare.
Qt habet imperium in linea chartis maxime impletur per moduli Qt Charts. Qt chartis modulus datus est ad visualizationi datae. Varias chartorum species continet, cum linea chartis. Utens Qt Chartis, facile potes creare et configurare lineas chartis ad notitias trends proponere.
Ad lineam chart utens Qt Chartis, debes includere Qt Charts moduli in tuo consilio et usuQChart
、QLineSeries
Classes chartis creare et configurare.QLineSeries
Classis ad seriem datam repraesentandam in linea chartQChart
in obiecto.Deinde configurare potes titulum chart, axem, legendam et alias proprietates, ac demum chartulam in a . ostendereQChartView
in potestate.
Quaeso note quod ad Qt Chartis utendum, modulum cum Qt inaugurari debes eligere, vel debitam moduli dependentiam in fasciculo documenti addere (.pro).
Qt chartis linea chart exemplum
1. Praeparatio opus
QT += charts
。#include <QtCharts>
。2. crea in linea chart
QChartView
Objectum quod chart ostentare solebant.QChart
Classis facit chart exempli gratia.QLineSeries
Classis unam vel plures notitias instantiarum gignit. Haec series notitiarum notitiarum puncta pro chartis lineis condere solebant.QLineSeries
Addere puncta rei data. Quaelibet pars data in x-coordinata et y-coordinata consistit.QValueAxis
Classis ad axes creare et configurare.QLineSeries
quod additumQChart
in obiecto.QChart
Obiectum estQChartView
chart.QChartView
Additum est interface ad propono chartis.3. Sample codice excerpta
Simplex exemplum hic codicis PRAECISIO ostendens quomodo chart lineam fundamentalem creare Qt Charts utens:
- #include <QtWidgets/QApplication>
- #include <QtWidgets/QMainWindow>
- #include <QtCharts/QChartView>
- #include <QtCharts/QLineSeries>
- #include <QtCharts/QChart>
-
- int main(int argc, char *argv[]) {
- QApplication a(argc, argv);
-
- // 创建数据系列
- QLineSeries *series = new QLineSeries();
- series->append(0, 6);
- series->append(2, 4);
- series->append(3, 8);
- series->append(7, 4);
- series->append(10, 5);
-
- // 创建图表并添加数据系列
- QChart *chart = new QChart();
- chart->legend()->hide();
- chart->addSeries(series);
- chart->createDefaultAxes(); // 创建默认的坐标轴
- chart->setTitle("Simple Line Chart Example");
-
- // 创建图表视图并显示图表
- QChartView *chartView = new QChartView(chart);
- chartView->setRenderHint(QPainter::Antialiasing);
-
- QMainWindow window;
- window.setCentralWidget(chartView);
- window.resize(400, 300);
- window.show();
-
- return a.exec();
- }
Hoc signum simplex lineam chart cum pluribus punctis notatis creat.The chart is added to aQChartView
atque in summa fenestra. Data puncta, chart stilum et figuram accommodare potes prout opus est ad proprias necessitates tuas occurrere.