折线图示例

示例显示如何创建一个简单的折线图。

下载 该 示例

linechart.py

# 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 v5.x"""

import sys
from PySide6.QtCore import QPointF
from PySide6.QtGui import QPainter
from PySide6.QtWidgets import QMainWindow, QApplication
from PySide6.QtCharts import QChart, QChartView, QLineSeries


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

        self.series = QLineSeries()
        self.series.append(0, 6)
        self.series.append(2, 4)
        self.series.append(3, 8)
        self.series.append(7, 4)
        self.series.append(10, 5)
        self.series.append(QPointF(11, 1))
        self.series.append(QPointF(13, 3))
        self.series.append(QPointF(17, 6))
        self.series.append(QPointF(18, 3))
        self.series.append(QPointF(20, 2))

        self.chart = QChart()
        self.chart.legend().hide()
        self.chart.addSeries(self.series)
        self.chart.createDefaultAxes()
        self.chart.setTitle("Simple line chart example")

        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(440, 300)
    sys.exit(app.exec())