45 lines
1 KiB
Python
45 lines
1 KiB
Python
import PySimpleGUIWeb as sg
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import numpy as np
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from matplotlib.backends.backend_tkagg import FigureCanvasAgg
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import matplotlib.pyplot as plt
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import io
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def draw_figure(fig, element):
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"""
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Draws the previously created "figure" in the supplied Image Element
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:param fig: a Matplotlib figure
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:param element: an Image Element
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:return: The figure canvas
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"""
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plt.close('all') # erases previously drawn plots
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canv = FigureCanvasAgg(fig)
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buf = io.BytesIO()
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canv.print_figure(buf, format='png')
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if buf is None:
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return None
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buf.seek(0)
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element.update(data=buf.read())
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return canv
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def main():
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layout = [[sg.Text('Matplotlib Simple Plot', font='Any 20')],
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[sg.Image(key='-IMAGE-')],
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[sg.Button('Exit')]]
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window = sg.Window('Matplotlib Example', layout, finalize=True)
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fig = plt.figure()
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x = np.arange(0, 5, 0.1)
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y = np.sin(x)
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plt.plot(x, y)
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draw_figure(fig, window['-IMAGE-'])
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window.read(close=True)
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if __name__ == "__main__":
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main()
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