Vertical plot demo

import numpy as np
from qtpy.QtCore import Qt
from qtpy.QtGui import QColor, QPalette, QPen

from qwt import QwtPlot, QwtPlotCurve, QwtPlotMarker, QwtText
from qwt.tests import utils


class VerticalPlot(QwtPlot):
    def __init__(self, parent=None):
        super(VerticalPlot, self).__init__(parent)
        self.setWindowTitle("PythonQwt")
        self.enableAxis(self.xTop, True)
        self.enableAxis(self.yRight, True)
        y = np.linspace(0, 10, 500)
        curve1 = QwtPlotCurve.make(np.sin(y), y, title="Test Curve 1")
        curve2 = QwtPlotCurve.make(y**3, y, title="Test Curve 2")
        curve2.setAxes(self.xTop, self.yRight)

        for item, col, xa, ya in (
            (curve1, Qt.green, self.xBottom, self.yLeft),
            (curve2, Qt.red, self.xTop, self.yRight),
        ):
            item.attach(self)
            item.setPen(QPen(col))
            for axis_id in xa, ya:
                palette = self.axisWidget(axis_id).palette()
                palette.setColor(QPalette.WindowText, QColor(col))
                palette.setColor(QPalette.Text, QColor(col))
                self.axisWidget(axis_id).setPalette(palette)
                ticks_font = self.axisFont(axis_id)
                self.setAxisFont(axis_id, ticks_font)

        self.marker = QwtPlotMarker.make(0, 5, plot=self)

    def resizeEvent(self, event):
        super(VerticalPlot, self).resizeEvent(event)
        self.show_layout_details()

    def show_layout_details(self):
        text = (
            "plotLayout().canvasRect():\n%r\n\n"
            "canvas().geometry():\n%r\n\n"
            "plotLayout().scaleRect(QwtPlot.yLeft):\n%r\n\n"
            "axisWidget(QwtPlot.yLeft).geometry():\n%r\n\n"
            "plotLayout().scaleRect(QwtPlot.yRight):\n%r\n\n"
            "axisWidget(QwtPlot.yRight).geometry():\n%r\n\n"
            "plotLayout().scaleRect(QwtPlot.xBottom):\n%r\n\n"
            "axisWidget(QwtPlot.xBottom).geometry():\n%r\n\n"
            "plotLayout().scaleRect(QwtPlot.xTop):\n%r\n\n"
            "axisWidget(QwtPlot.xTop).geometry():\n%r\n\n"
            % (
                self.plotLayout().canvasRect().getCoords(),
                self.canvas().geometry().getCoords(),
                self.plotLayout().scaleRect(QwtPlot.yLeft).getCoords(),
                self.axisWidget(QwtPlot.yLeft).geometry().getCoords(),
                self.plotLayout().scaleRect(QwtPlot.yRight).getCoords(),
                self.axisWidget(QwtPlot.yRight).geometry().getCoords(),
                self.plotLayout().scaleRect(QwtPlot.xBottom).getCoords(),
                self.axisWidget(QwtPlot.xBottom).geometry().getCoords(),
                self.plotLayout().scaleRect(QwtPlot.xTop).getCoords(),
                self.axisWidget(QwtPlot.xTop).geometry().getCoords(),
            )
        )
        self.marker.setLabel(QwtText.make(text, family="Courier New", color=Qt.blue))


def test_vertical():
    """Vertical plot example"""
    utils.test_widget(VerticalPlot, size=(300, 650))


if __name__ == "__main__":
    test_vertical()