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import os.path as osp
import numpy as np
from qtpy import QtWidgets as QW
import qwt
from qwt import qthelpers as qth
app = QW.QApplication([])
x = np.linspace(-10, 10, 500)
plot = qwt.QwtPlot("Trigonometric functions")
plot.insertLegend(qwt.QwtLegend(), qwt.QwtPlot.BottomLegend)
qwt.QwtPlotCurve.make(x, np.cos(x), "Cosinus", plot, linecolor="red", antialiased=True)
qwt.QwtPlotCurve.make(x, np.sin(x), "Sinus", plot, linecolor="blue", antialiased=True)
qth.take_screenshot(
plot,
osp.join(osp.abspath(osp.dirname(__file__)), "_static", "QwtPlot_example.png"),
size=(600, 300),
)
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