如何使用 matplotlib 调整 PySimpleGUI 画布的大小答案

【问题标题】：How to resize PySimpleGUI canvas with matplotlib如何使用 matplotlib 调整 PySimpleGUI 画布的大小
【发布时间】：2021-07-22 11:29:24
【问题描述】：

我正在尝试更改条形图的大小，但遇到了一些困难。这些条从我的数据中正确绘制，但是当我调整 size 参数时画布的大小没有增加。我没有收到任何错误，所以我不确定我错过了什么。

    # define the window layout
    layoutMain = [[sg.Text('Member Access')],
            [sg.Menu(mainmenu_def, pad=(0,0))],
            [sg.Button('Store To Inventory', size = (17,1)), sg.Button('Retrieve From Inventory', size = (17,1)), sg.Button('Inventory Details', size = (17,1)), sg.Button('Exit to Home', button_color = '#36454f', size = (17,1))],
            [sg.Text('E-Stock', font='Any 18')],
            [sg.Canvas(size=(100, 100), key='-CANVAS-')]]
    windowMain = sg.Window('E-Stock', layoutMain, no_titlebar=False, size=(1000,600), finalize=True, resizable=True)
    windowMain.maximize()

    # add the plot to the window
    fig_photo = draw_figure(windowMain['-CANVAS-'].TKCanvas, fig)

【问题讨论】：

标签： python matplotlib pysimplegui

【解决方案1】：

这里的例子，我通过figsize和matplolib图中的dpi来定义sg.Canvas的大小。

import numpy as np
import matplotlib
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import PySimpleGUI as sg


matplotlib.use('TkAgg')
w, h = figsize = (5, 3)     # figure size
fig = matplotlib.figure.Figure(figsize=figsize)
dpi = fig.get_dpi()
size = (w*dpi, h*dpi)       # canvas size
t = np.arange(0, 3, .01)
fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))

def draw_figure(canvas, figure):
    figure_canvas_agg = FigureCanvasTkAgg(figure, canvas)
    figure_canvas_agg.draw()
    figure_canvas_agg.get_tk_widget().pack(side='top', fill='both', expand=1)
    return figure_canvas_agg

layout = [[sg.Text('Plot test')],
          [sg.Canvas(size=size, key='-CANVAS-')],
          [sg.Button('Ok')]]

window = sg.Window('Embedding Matplotlib', layout, finalize=True, element_justification='center', font='Helvetica 18')
fig_canvas_agg = draw_figure(window['-CANVAS-'].TKCanvas, fig)

event, values = window.read()

window.close()

【讨论】：