import Tkinter
import tkMessageBox
from Tkinter import *
CanvasHeight = 500
CanvasWidth = 600
画布宽度和高度设置为变量最大值的10倍。 IsGraphHidden=0
^{pr2}$这是所有滑块的窗口,定义为“主窗口”供以后使用。在
Strength = DoubleVar()
Multiple = DoubleVar()
Time = DoubleVar()
由于Tkinter插件,所有变量都设置为DoubleVar。 它需要自己的特殊浮点、整数和字符串才能工作。 可以使用变量.get()
coords = []
lastcoords = [0,0]
这是我们将使用的延续线,而不是让一堆线从屏幕的一角画出来。在
Plot = DoubleVar()
StrengthScale = Scale( MainWindow, variable = Strength, orient = HORIZONTAL,label="Strength")
MultipleScale = Scale( MainWindow, variable = Multiple, from_ = float(0), to = float(1), resolution = float(0.01), orient = HORIZONTAL, label="Multiple")
TimeScale = Scale( MainWindow, variable = Time, orient = HORIZONTAL, from_ = int(0), to = int(120), label="Time")
这些是按钮的过程,以及其余的代码。在
def Calculate():
answer = float(Strength.get())*float(Multiple.get())
tkMessageBox.showinfo("Answer:", answer)
def PrepPlot():
global IsGraphHidden
global coords
global lastcoords
lastcoords0 = lastcoords[0]
lastcoords1 = lastcoords[1]
coords.append(lastcoords0)
coords.append(lastcoords1)
coords.append(Time.get()*5)
coords.append(Strength.get()*Multiple.get()*5)
lastcoords = Time.get()*5
lastcoords = Strength.get()*Multiple.get()*5
if IsGraphHidden == 0:
Graph = Canvas(MainWindow, width = CanvasWidth, height = CanvasHeight, bg = "white")
Graph.create_line(coords, fill = "black")
Graph.grid(row=5, column=1)
else:
Graph.destroy()
Graph.delete("all")
Graph.create_line(coords, fill = "black")
Graph.grid(row=5,column=1)
IsGraphHidden = 1
def DisplayPoints():
PointWindow = Tkinter.Tk()
Text = Label(PointWindow, textvariable = "Hi there", relief=RAISED)
Text.pack()
PointWindow.mainloop() #Work in progress, nothin' to see here.
Button = Tkinter.Button(MainWindow, text= "Calculate",command = Calculate)
PrepButton = Tkinter.Button(MainWindow, text = "Plot", command = PrepPlot) #The text is the text on the button.
DisplayButton = Tkinter.Button(MainWindow, text = "Display Plots", command = DisplayPoints)
MultipleScale.grid(row=0,column=0)
StrengthScale.grid(row=1,column=0)
TimeScale.grid(row=1,column=2)
PrepButton.grid(row=2,column=1)
Button.grid(row=4,column=1)
DisplayButton.grid(row=3,column=1)
MainWindow.mainloop()
我需要一些关于float对象getitem错误的帮助,我正在曼彻斯特大学工作经验。。。在
您将
lastcoords
列表替换为浮点值:所以下次绕线时:
^{pr2}$引发异常,因为无法对浮点值使用订阅。在
我想你应该改为设置一个新的列表:
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