def ex59():
canvas = Canvas(width=300, height=300, bg='green')
canvas.pack(expand=YES, fill=BOTH)
x0 = 150
y0 = 100
canvas.create_oval(x0 - 10, y0 - 10, x0 + 10, y0 + 10)
canvas.create_oval(x0 - 20, y0 - 20, x0 + 20, y0 + 20)
canvas.create_oval(x0 - 50, y0 - 50, x0 + 50, y0 + 50)
B = 0.809
for i in range(16):
a = 2 * math.pi / 16 * i
x = math.ceil(x0 + 48 * math.cos(a))
y = math.ceil(y0 + 48 * math.sin(a) * B)
canvas.create_line(x0, y0, x, y, fill='red')
canvas.create_oval(x0 - 60, y0 - 60, x0 + 60, y0 + 60)
for k in range(501):
for i in range(17):
a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k
x = math.ceil(x0 + 48 * math.cos(a))
y = math.ceil(y0 + 48 + math.sin(a) * B)
canvas.create_line(x0, y0, x, y, fill='red')
for j in range(51):
a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k - 1
x = math.ceil(x0 + 48 * math.cos(a))
y = math.ceil(y0 + 48 * math.sin(a) * B)
canvas.create_line(x0, y0, x, y, fill='red')
mainloop()
def ex65():
screenx = 400
screeny = 400
canvas = Canvas(width=screenx, height=screeny, bg='white')
AspectRatio = 0.85
MAXPTS = 15
h = screeny
w = screenx
xcenter = w / 2
ycenter = h / 2
radius = (h - 30) / (AspectRatio * 2) - 20
step = 360 / MAXPTS
angle = 0.0
for i in range(MAXPTS):
rads = angle * math.pi / 180.0
p = PTS()
p.x = xcenter + int(math.cos(rads) * radius)
p.y = ycenter - int(math.sin(rads) * radius * AspectRatio)
angle += step
points.append(p)
canvas.create_oval(xcenter - radius, ycenter - radius,
xcenter + radius, ycenter + radius)
for i in range(MAXPTS):
for j in range(i, MAXPTS):
canvas.create_line(points[i].x, points[i].y, points[j].x, points[j].y)
canvas.pack()
mainloop()
class App:
def __init__(self):
self.win = tk.Tk()
self.win.geometry("640x400")
self.canvas = Canvas()
self.canvas.pack()
self.scr = TurtleScreen(self.canvas)
self.t = RawTurtle(self.scr)
self.btn = Button(self.win, text="Press me!", command=self.do_action())
self.btn.pack()
def do_action(self):
self.t.pensize(3)
self.t.pencolor(random.choice(colors))
self.t.speed(0)
self.length = 5
while self.length < 500:
self.t.left(89)
self.t.forward(self.length)
self.t.right(-105)
self.t.forward(self.length)
self.length += 3
def run(self):
self.win.mainloop()
def ex63():
x, y = 360, 160
top = bottom = y - 30
canvas = Canvas(width=400, height=600, bg='white')
for i in range(20):
canvas.create_oval(250 - top, 250 - bottom, 250 + top, 250 + bottom)
top -= 5
bottom += 5
canvas.pack()
mainloop()
def ex64():
canvas = Canvas(width=400, height=600, bg='white')
left, right, top, num = 20, 50, 50, 15
for i in range(num):
canvas.create_oval(250 - right, 250 - left, 250 + right, 250 + left)
canvas.create_oval(250 - 20, 250 - top, 250 + 20, 250 + top)
canvas.create_rectangle(20 - 2 * i, 20 - 2 * i, 10 * (i + 2), 10 * (i + 2))
right += 5
left += 5
top += 10
canvas.pack()
mainloop()
def ex58():
root = Tk()
root.title('Canvas')
canvas = Canvas(root, width=400, height=400, bg='yellow')
x0 = y0 = 263
x1 = y1 = 275
for i in range(19):
canvas.create_rectangle(x0, y0, x1, y1)
x0 -= 5
y0 -= 5
x1 += 5
y1 += 5
canvas.pack()
mainloop()
def ex57():
canvas = Canvas(width=300, height=300, bg='green')
canvas.pack(expand=YES, fill=BOTH)
x0 = y0 = 263
x1 = y1 = 275
for i in range(19):
canvas.create_line(x0, y0, x0, y1, width=1, fill='red')
x0 -= 5
y0 -= 5
x1 += 5
y1 += 5
x0 = y0 = 263
y1 = 275
for i in range(21):
canvas.create_line(x0, y0, x0, y1, fill='red')
x0 += 5
y0 += 5
y1 += 5
mainloop()
def draw(lines):
from tkinter import Tk, LEFT
from turtle import Canvas, RawTurtle, TurtleScreen
# set up the environment
root = Tk()
canvas = Canvas(root, width=800, height=800)
canvas.pack()
s = TurtleScreen(canvas)
t = RawTurtle(canvas)
t.speed(0)
t.width(1)
for line in lines:
x, y = line[0]
t.up()
t.goto(x * 800 / 1024 - 400, -(y * 800 / 1024 - 400))
for point in line:
t.down()
t.goto(point[0] * 800 / 1024 - 400, -(point[1] * 800 / 1024 - 400))
s.mainloop()
# remove cars that drove out of the scene
if (car.pos_x < 0 or car.pos_x > width or car.pos_y < 0
or car.pos_y > height):
cars.remove(car)
canvas.update()
time.sleep(0.01)
if __name__ == '__main__':
root = Tk()
# main global variables
width = root.winfo_screenwidth()
height = root.winfo_screenheight()
roadWidth = 300
# canvas is a white piece of paper on which you can draw
canvas = Canvas(root, width=width, height=height, bg="dimgrey")
canvas.pack()
# list of cars in the scene
cars = []
# run the simulation
simulate_cars()
# must be the last line before exit for TKinter
root.mainloop()
obj3 = IssueBook()
obj4 = Return()
root = Tk()
root.title("Library")
root.minsize(width=400, height=400)
root.geometry("600x500")
photo = ImageTk.PhotoImage(file="libicon.png")
root.iconphoto(False, photo)
#root.mainloop()
same = True
n = 0.25
# Adding a background image
canvas = Canvas(root)
canvas.pack(expand=YES, fill=BOTH)
image = ImageTk.PhotoImage(file="lib.jpg")
canvas.create_image(10, 10, image=image, anchor=NW)
#Adding a header
headingFrame1 = Frame(root, bg="#FFFFFF", bd=5)
headingFrame1.place(relx=0.2, rely=0.1, relwidth=0.6, relheight=0.16)
headingLabel = Label(headingFrame1,
text="Welcome to \n the Library",
bg='black',
fg='white',
font=('Courier', 15))
headingLabel.place(relx=0, rely=0, relwidth=1, relheight=1)
btn1 = Button(root,
text="Add Book Details",