柱状图示例#
此示例说明如何创建柱状图。
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
"""PySide6 port of the linechart example from Qt v6.x"""
import sys
from PySide6.QtCharts import (QBarCategoryAxis, QBarSeries, QBarSet, QChart,
QChartView, QValueAxis)
from PySide6.QtCore import Qt
from PySide6.QtGui import QPainter
from PySide6.QtWidgets import QApplication, QMainWindow
class TestChart(QMainWindow):
def __init__(self):
super().__init__()
self.set_0 = QBarSet("Jane")
self.set_1 = QBarSet("John")
self.set_2 = QBarSet("Axel")
self.set_3 = QBarSet("Mary")
self.set_4 = QBarSet("Samantha")
self.set_0.append([1, 2, 3, 4, 5, 6])
self.set_1.append([5, 0, 0, 4, 0, 7])
self.set_2.append([3, 5, 8, 13, 8, 5])
self.set_3.append([5, 6, 7, 3, 4, 5])
self.set_4.append([9, 7, 5, 3, 1, 2])
self.series = QBarSeries()
self.series.append(self.set_0)
self.series.append(self.set_1)
self.series.append(self.set_2)
self.series.append(self.set_3)
self.series.append(self.set_4)
self.chart = QChart()
self.chart.addSeries(self.series)
self.chart.setTitle("Simple barchart example")
self.chart.setAnimationOptions(QChart.SeriesAnimations)
self.categories = ["Jan", "Feb", "Mar", "Apr", "May", "Jun"]
self.axis_x = QBarCategoryAxis()
self.axis_x.append(self.categories)
self.chart.addAxis(self.axis_x, Qt.AlignBottom)
self.series.attachAxis(self.axis_x)
self.axis_y = QValueAxis()
self.axis_y.setRange(0, 15)
self.chart.addAxis(self.axis_y, Qt.AlignLeft)
self.series.attachAxis(self.axis_y)
self.chart.legend().setVisible(True)
self.chart.legend().setAlignment(Qt.AlignBottom)
self._chart_view = QChartView(self.chart)
self._chart_view.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self._chart_view)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = TestChart()
window.show()
window.resize(420, 300)
sys.exit(app.exec())