百分比条形图示例

本示例展示了如何创建简单的百分比条形图。

百分比条形图显示了每个类别的数据集合作为所有集合百分比。

创建百分比条形图就像创建常规条形图一样，但对于百分比条形图，我们使用 QPercentBarSeries API 而不是 QBarSeries。此外，在条形图中，我们使用漂亮的数字算法来使 y 轴的数字看起来更好。但是对于百分比条形图就没有这个必要了，因为 y 轴的最大值始终是 100。

下载 此示例

percentbarchart.py

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

"""PySide6 port of the Percent Bar Chart example from Qt v5.x"""

import sys
from PySide6.QtCore import Qt
from PySide6.QtGui import QPainter
from PySide6.QtWidgets import (QMainWindow, QApplication)
from PySide6.QtCharts import (QBarCategoryAxis, QBarSet, QChart, QChartView,
                              QPercentBarSeries)


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        set0 = QBarSet("Jane")
        set1 = QBarSet("John")
        set2 = QBarSet("Axel")
        set3 = QBarSet("Mary")
        set4 = QBarSet("Samantha")

        set0.append([1, 2, 3, 4, 5, 6])
        set1.append([5, 0, 0, 4, 0, 7])
        set2.append([3, 5, 8, 13, 8, 5])
        set3.append([5, 6, 7, 3, 4, 5])
        set4.append([9, 7, 5, 3, 1, 2])

        series = QPercentBarSeries()
        series.append(set0)
        series.append(set1)
        series.append(set2)
        series.append(set3)
        series.append(set4)

        chart = QChart()
        chart.addSeries(series)
        chart.setTitle("Simple percentbarchart example")
        chart.setAnimationOptions(QChart.SeriesAnimations)

        categories = ["Jan", "Feb", "Mar", "Apr", "May", "Jun"]
        axis = QBarCategoryAxis()
        axis.append(categories)
        chart.createDefaultAxes()
        chart.addAxis(axis, Qt.AlignBottom)
        series.attachAxis(axis)

        chart.legend().setVisible(True)
        chart.legend().setAlignment(Qt.AlignBottom)

        chart_view = QChartView(chart)
        chart_view.setRenderHint(QPainter.Antialiasing)

        self.setCentralWidget(chart_view)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = MainWindow()
    w.resize(420, 300)
    w.show()
    sys.exit(app.exec())