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<p>我有一个TKinter画布,在那里我显示一个绘图。问题是,我希望绘图适合整个画布,占据尽可能多的区域,但无法改变大小。关于如何实现这一点,有什么建议吗?下面是我正在显示绘图的窗口的类</p>
<pre><code>
import numpy as np
import cv2
from PIL import Image, ImageTk
import matplotlib.pyplot as plt
import tkinter as tk
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
"""
See if can draw new window on exteral screen
"""
#Define the target, source and output arrays. Source has to be completely white otherwise it kills everything
def initialize(x,y):
xarr = np.zeros(x)
yarr = np.zeros(y)
target = np.meshgrid(xarr,yarr)
target = target[0]
source = np.meshgrid(xarr,yarr)
source = source[0]
output = np.meshgrid(xarr,yarr)
output = output[0]
for i in range(x):
for n in range(y):
source[n][i] = 1
return target, source, output
# creates trap between XTrapMin-XTrapMax and YTrapMin-YTrapMax on Array
def trap(xtmi,xtma,xs,ytmi,ytma,ys,array):
for i in range(xs):
if xtmi < i < xtma:
for n in range(ys):
if ytmi < n < ytma:
array[n][i] = 255
return
#Returns the amplitude of a complex number
def Amplitude(x):
if isinstance(x, complex):
return np.sqrt(x.real**2+x.imag**2)
else:
return np.abs(x)
#Returns the phase of a complex number
def Phase(z):
return np.angle(z)
#Main GS algorithm implementation using numpy FFT package
#performs the GS algorithm to obtain a phase distribution for the plane, Source
#such that its Fourier transform would have the amplitude distribution of the plane, Target.
def GS(target,source):
A = np.fft.ifft2(target)
for i in range(5):
B = Amplitude(source) * np.exp(1j * Phase(A))
C = np.fft.fft2(B)
D = Amplitude(target) * np.exp(1j * Phase(C))
A = np.fft.ifft2(D)
output = Phase(A)
return output
#Make array into PIL Image
def mkPIL(array):
im = Image.fromarray(np.uint8(array))
return im
def up():
global ytmi
global ytma
ytmi += 10
ytma += 10
return
def down():
global ytmi
global ytma
ytmi -= 10
ytma -= 10
return
def right():
global xtmi
global xtma
xtmi += 10
xtma += 10
return
def left():
global xtmi
global xtma
xtmi -= 10
xtma -= 10
return
xtmi = 127
xtma = 129
xs = 256
ytmi = 127
ytma = 129
ys = 256
root = tk.Tk()
root.attributes('-fullscreen', True)
def main():
app = Lower(root)
root.mainloop()
class Lower:
def __init__(self, master):
self.master = master
self.frame = tk.Frame(self.master).pack()
self.displayimg = tk.Button(self.frame, text = 'Display', width = 25, command = self.plot)
self.displayimg.pack()
self.makewidg()
def makewidg(self):
fig = plt.figure(figsize=(100,100), frameon=False) #changing figsize doesnt cange the size of the plot display
fig.tight_layout()
self.ax = fig.add_subplot(111)
self.ax.set_yticklabels([])
self.ax.set_xticklabels([])
self.canvas = FigureCanvasTkAgg(fig, master=self.master)
self.canvas.get_tk_widget().pack(expand=True)
self.canvas.draw()
self.new_window()
def new_window(self):
self.newWindow = tk.Toplevel()
self.app = Display(self.newWindow)
def plot(self):
global xtmi, xtma, xs, ytmi, ytma, ys, i
target,source,output=initialize(xs,ys)
trap(xtmi,xtma,xs,ytmi,ytma,ys,target)
output = GS(target,source)
self.ax.imshow(output, cmap='gray')
self.ax.set_yticklabels([])
self.ax.set_xticklabels([])
self.canvas.draw()
self.ax.clear()
def kill(self):
root.destroy()
class Display:
def __init__(self, master):
self.master = master
self.frame = tk.Frame(self.master)
self.frame.pack()
self.up = tk.Button(self.frame, text = 'Up', width = 25, command = up)
self.up.pack()
self.down = tk.Button(self.frame, text = 'Down', width = 25, command = down)
self.down.pack()
self.right = tk.Button(self.frame, text = 'Right', width = 25, command = right)
self.right.pack()
self.left = tk.Button(self.frame, text = 'Left', width = 25, command = left)
self.left.pack()
self.kill = tk.Button(self.frame, text = 'Kill', width = 25, command = self.kill)
self.kill.pack()
def kill(self):
root.destroy()
main()
</code></pre>
<p>编辑:我添加了我的代码,这样你就可以自己运行了。情节相当大,但改变figsize不允许我让它覆盖整个画布</p>