嘿，我制作了这个GUI，它在带有滚动画布的tkinter界面中显示了matplotlib图。但是当绘图添加到画布时，鼠标的滚动事件不再起作用。我完全是tkinter的新手，所以当你检查代码时，如果可以改进，请考虑这一点。所以这就是：
from Tkinter import *
import matplotlib
#matplotlib.use('TkAgg')
from numpy import arange, sin, pi
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
import numpy as np
import os
import matplotlib.mlab as mlab
class App:
def __init__(self, master, figureList=[]):
frame = Frame(master, bg='#00BFFF', borderwidth=1, relief=RAISED)
frame.pack(expand=YES, fill=BOTH)
master.title("Listed Plots")
#Fullscreen for windows
if os.name == 'nt':
master.wm_state('zoomed')
#Create a Canvas
canvas=Canvas(frame,bg='#00BFFF', relief=SUNKEN)
canvas.config(highlightthickness=0)
#Create a Scrollbar Horisontal
hbar=Scrollbar(frame,orient=HORIZONTAL)
hbar.pack(side=BOTTOM,fill=X)
hbar.config(command=canvas.xview)
#Create a Scrollbar Vertical
vbar=Scrollbar(frame,orient=VERTICAL)
vbar.pack(side=RIGHT,fill=Y)
vbar.config(command=canvas.yview)
canvas.config(xscrollcommand=hbar.set, yscrollcommand=vbar.set)
canvas.pack(side=TOP,expand=True,fill=BOTH)
#Create a Frame in the canvas
canvFrame = Frame(canvas, bg='#00BFFF')
canvFrame.pack()
Label(canvFrame, text="Matplots of data", bg='#B4EEB4').pack(side=TOP,fill=X)
plotNbr = 1
windowHeight = 10
for fig in figureList:
Label(canvFrame, text="#Plotnumber: " + str(plotNbr), bg='#FF7F24').pack(side=TOP,fill=X)
frm = Frame(canvFrame, bg='#9FB6CD')
frm.pack(side=TOP, fill=X)
self.canvasMPL2, self.canvasMPLToolBar2 = getCanvas(frm, fig)
self.canvasMPL2.pack(side=TOP)
self.canvasMPLToolBar2.pack(side=TOP)
#Create space for the plot and tool bar.
windowHeight = windowHeight + 680
plotNbr = plotNbr + 1
canvas.config(width=1200,height= windowHeight)
canvas.config(scrollregion=(0,0,1200, windowHeight))
canvas.create_window(0,0, anchor = NW, window = canvFrame, width = 1200, height = windowHeight)
canvas.focus_set() #Doesnt work with FigureCanvasTkAgg, this steals the focus
#canvas.focus_force()
#canvas.grab_set_global()
#scrollwheel settings
canvas.configure(yscrollincrement='25')
def rollWheel(event):
#print "Mousescroll"
direction = 0
if event.num == 5 or event.delta == -120:
direction = 1
if event.num == 4 or event.delta == 120:
direction = -1
event.widget.yview_scroll(direction, UNITS)
canvas.bind('<MouseWheel>', lambda event: rollWheel(event))
canvas.bind('<Button-4>', lambda event: rollWheel(event))
canvas.bind('<Button-5>', lambda event: rollWheel(event))
plottedFigures = [] #To store matplotlib figures
def addPlottedFig(figure):
'''
Matplotlib figures to be shown in the GUI
'''
plottedFigures.append(figure)
def getCanvas(masterWidget, figure=None):
'''
Returns canvas of plot and canvas of tool bar
'''
if(figure==None):
f = getHistoGramPlot() #For testing
canvas = FigureCanvasTkAgg(f, master=masterWidget)
else:
canvas = FigureCanvasTkAgg(figure, master=masterWidget)
canvas.show()
toolbar = NavigationToolbar2TkAgg( canvas, masterWidget )
toolbar.update()
#return the plot and the toolbar
return canvas.get_tk_widget(), canvas._tkcanvas
def initiate(FigureList=None):
'''
Start the GUI Application
'''
root = Tk()
app = App(root, FigureList)
root.mainloop()
def main():
'''
Shows 2 histograms plots in a tkinter GUI
'''
fig1 = getHistoGramPlot()
fig2 = getHistoGramPlot()
figList = [fig1, fig2]
initiate(figList)
def getHistoGramPlot():
'''
Return a figure of a histogram
'''
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
fig = plt.figure(figsize=(12, 6), dpi=100)
ax = fig.add_subplot(111)
n, bins, patches = ax.hist(x, 50, normed=1, facecolor='green', alpha=0.6)
bincenters = 0.5*(bins[1:]+bins[:-1])
mu = np.median(x)
sigma = np.std(x)
y = mlab.normpdf( bincenters, mu, sigma)
l = ax.plot(bincenters, y, 'r--', linewidth=1)
ax.set_xlabel('Values')
ax.set_ylabel('Probability')
xlimTop = max(x)
xlimBottom = min(x)
ax.set_xlim(xlimBottom, xlimTop)
ax.grid(True)
return fig
if __name__ == '__main__':
main()
答案 0 :(得分：3)
快速＆amp;肮脏的解决方案：
from Tkinter import *
import matplotlib
#matplotlib.use('TkAgg')
from numpy import arange, sin, pi
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
import numpy as np
import os
import matplotlib.mlab as mlab
class App:
def __init__(self, master, figureList=[]):
frame = Frame(master, bg='#00BFFF', borderwidth=1, relief=RAISED)
frame.pack(expand=YES, fill=BOTH)
master.title("Listed Plots")
#Fullscreen for windows
if os.name == 'nt':
master.wm_state('zoomed')
#Create a Canvas
self.canvas = canvas = Canvas(frame,bg='#00BFFF', relief=SUNKEN)
canvas.config(highlightthickness=0)
#Create a Scrollbar Horisontal
hbar=Scrollbar(frame,orient=HORIZONTAL)
hbar.pack(side=BOTTOM,fill=X)
hbar.config(command=canvas.xview)
#Create a Scrollbar Vertical
vbar=Scrollbar(frame,orient=VERTICAL)
vbar.pack(side=RIGHT,fill=Y)
vbar.config(command=canvas.yview)
canvas.config(xscrollcommand=hbar.set, yscrollcommand=vbar.set)
canvas.pack(side=TOP,expand=True,fill=BOTH)
#Create a Frame in the canvas
canvFrame = Frame(canvas, bg='#00BFFF')
canvFrame.pack()
Label(canvFrame, text="Matplots of data", bg='#B4EEB4').pack(side=TOP,fill=X)
plotNbr = 1
windowHeight = 10
for fig in figureList:
Label(canvFrame, text="#Plotnumber: " + str(plotNbr), bg='#FF7F24').pack(side=TOP,fill=X)
frm = Frame(canvFrame, bg='#9FB6CD')
frm.pack(side=TOP, fill=X)
self.canvasMPL2, self.canvasMPLToolBar2 = getCanvas(frm, fig)
self.canvasMPL2.pack(side=TOP)
self.canvasMPLToolBar2.pack(side=TOP)
#Create space for the plot and tool bar.
windowHeight = windowHeight + 680
plotNbr = plotNbr + 1
canvas.config(width=1200,height= windowHeight)
canvas.config(scrollregion=(0,0,1200, windowHeight))
canvas.create_window(0,0, anchor = NW, window = canvFrame, width = 1200, height = windowHeight)
canvas.focus_set() #Doesnt work with FigureCanvasTkAgg, this steals the focus
#canvas.focus_force()
#canvas.grab_set_global()
#scrollwheel settings
canvas.configure(yscrollincrement='25')
## def rollWheel(event):
## #print "Mousescroll"
## direction = 0
## if event.num == 5 or event.delta == -120:
## direction = 1
## if event.num == 4 or event.delta == 120:
## direction = -1
## event.widget.yview_scroll(direction, UNITS)
master.bind('<MouseWheel>', lambda event,s=self: self.rollWheel(event))
canvas.bind('<Button-4>', lambda event: rollWheel(event))
canvas.bind('<Button-5>', lambda event: rollWheel(event))
def rollWheel(self, event):
#print "Mousescroll"
direction = 0
if event.num == 5 or event.delta == -120:
direction = 1
if event.num == 4 or event.delta == 120:
direction = -1
## event.widget.yview_scroll(direction, UNITS)
self.canvas.yview_scroll(direction, UNITS)
plottedFigures = [] #To store matplotlib figures
def addPlottedFig(figure):
'''
Matplotlib figures to be shown in the GUI
'''
plottedFigures.append(figure)
def getCanvas(masterWidget, figure=None):
'''
Returns canvas of plot and canvas of tool bar
'''
if(figure==None):
f = getHistoGramPlot() #For testing
canvas = FigureCanvasTkAgg(f, master=masterWidget)
else:
canvas = FigureCanvasTkAgg(figure, master=masterWidget)
canvas.show()
toolbar = NavigationToolbar2TkAgg( canvas, masterWidget )
toolbar.update()
#return the plot and the toolbar
return canvas.get_tk_widget(), canvas._tkcanvas
def initiate(FigureList=None):
'''
Start the GUI Application
'''
root = Tk()
app = App(root, FigureList)
root.mainloop()
def main():
'''
Shows 2 histograms plots in a tkinter GUI
'''
fig1 = getHistoGramPlot()
fig2 = getHistoGramPlot()
figList = [fig1, fig2]
initiate(figList)
def getHistoGramPlot():
'''
Return a figure of a histogram
'''
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
fig = plt.figure(figsize=(12, 6), dpi=100)
ax = fig.add_subplot(111)
n, bins, patches = ax.hist(x, 50, normed=1, facecolor='green', alpha=0.6)
bincenters = 0.5*(bins[1:]+bins[:-1])
mu = np.median(x)
sigma = np.std(x)
y = mlab.normpdf( bincenters, mu, sigma)
l = ax.plot(bincenters, y, 'r--', linewidth=1)
ax.set_xlabel('Values')
ax.set_ylabel('Probability')
xlimTop = max(x)
xlimBottom = min(x)
ax.set_xlim(xlimBottom, xlimTop)
ax.grid(True)
return fig
if __name__ == '__main__':
main()
答案 1 :(得分：1)
class App:代码的缩进缩减不正确。我假设rollWheel是__init__中定义的函数。
进行此更改：
def rollWheel(event):
#print "Mousescroll"
direction = 0
if event.num == 5 or event.delta == -120:
direction = 1
if event.num == 4 or event.delta == 120:
direction = -1
# Tell the canvas to scroll directly
canvas.yview_scroll(direction, UNITS)
canvas.bind_all('<MouseWheel>', lambda event: rollWheel(event))
canvas.bind_all('<Button-4>', lambda event: rollWheel(event))
canvas.bind_all('<Button-5>', lambda event: rollWheel(event))
有关.bind_all和tkinter绑定的详细信息，请查看effbot's tutorial。