58 lines
1.4 KiB
Python
58 lines
1.4 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.figure
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import matplotlib.pyplot as plt
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import io
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def create_figure():
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# ------------------------------- START OF YOUR MATPLOTLIB CODE -------------------------------
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fig = matplotlib.figure.Figure(figsize=(5, 4), dpi=100)
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t = np.arange(0, 3, .01)
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fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))
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return fig
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def draw_figure(element, fig):
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"""
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Draws the previously created "figure" in the supplied Image Element
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:param element: an Image Element
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:param fig: a Matplotlib figure
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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 = [
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[sg.T('Matplotlib Example', font='Any 20')],
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[sg.Image(key='-IMAGE-')],
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[sg.B('Draw'), sg.B('Exit')],
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]
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window = sg.Window('Title', layout)
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while True:
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event, values = window.read()
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if event == 'Exit' or event == sg.WIN_CLOSED:
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break
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if event == 'Draw':
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draw_figure(window['-IMAGE-'], create_figure())
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window.close()
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if __name__ == "__main__":
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main()
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