Python turtle.update函数代码示例

 def display(self):
     turtle.clear()
     # draws all live cells from grid.state
     for i in range(self.xspan):
         for j in range(self.yspan):
             self.draw(i, j)
     turtle.update()

 def show_robot(self, robot):
     turtle.color("blue")
     turtle.shape('square')
     turtle.setposition(*robot.xy)
     turtle.setheading(math.degrees(robot.h))
     turtle.stamp()
     turtle.update()

def draw(cmds, size=2): #output tree
    stack = []
    for cmd in cmds:
        if cmd=='F':
            turtle.forward(size)
        elif cmd=='-':
            t = random.randrange(0,7,1)
            p = ["Red","Green","Blue","Grey","Yellow","Pink","Brown"]
            turtle.color(p[t])
            turtle.left(15) #slope left
        elif cmd=='+':
            turtle.right(15) #slope right
            t = random.randrange(0,7,1) #рандомная пер. для цвета
            p = ["Red","Green","Blue","Grey","Yellow","Pink","Brown"] #ряд цветов
            turtle.color(p[t]) #выбор цвета из ряда
        elif cmd=='X':
            pass
        elif cmd=='[':
            stack.append((turtle.position(), turtle.heading()))
        elif cmd==']':
            position, heading = stack.pop()
            turtle.penup()
            turtle.setposition(position)
            turtle.setheading(heading)  
            turtle.pendown()
    turtle.update()

 def show_shark(self, shark):
     turtle.color(shark.color)
     turtle.shape('turtle')
     turtle.setposition(*shark.xy)
     turtle.setheading(math.degrees(shark.h))
     turtle.stamp()
     turtle.update()

def rysuj():
    turtle.tracer(0, 0)  # wylaczenie animacji co KROK, w celu przyspieszenia
    turtle.hideturtle()  # ukrycie glowki zolwika
    turtle.penup() # podnosimy zolwia, zeby nie mazal nam linii podczas ruchu

    ostatnie_rysowanie = 0  # ile kropek temu zostal odrysowany rysunek

    for i in xrange(ILE_KROPEK):
        # losujemy wierzcholek do ktorego bedziemy zmierzac	
        do = random.choice(WIERZCHOLKI)
        # bierzemy nasza aktualna pozycje 
        teraz = turtle.position()
        # ustawiamy sie w polowie drogi do wierzcholka, ktorego wczesniej obralismy
        turtle.setpos(w_polowie_drogi(teraz, do))
        # stawiamy kropke w nowym miejscu
        turtle.dot(1)
        ostatnie_rysowanie += 1
        if ostatnie_rysowanie == OKRES_ODSWIEZENIA:
            # postawilismy na tyle duzo kropek, zeby odswiezyc rysunek
            turtle.update()
            ostatnie_rysowanie = 0

    pozdrowienia()

    turtle.update()

def drawPattern(turt, offx, offy, radius, step):
    # Points is the number of points per side, NOT including the corner points
    # Draw lines between the points around teh box in the given pattern
    # drawRect(turt, offx, offy, sizex, sizey)        # Basic rectangle to outline the shape
    pointsl = drawCricle(turt, offx, offy, radius, step)

    turtle.tracer(1)
    for p in range(len(pointsl)):
        turt.color(getRandColor(cols))
        for p2 in range(len(pointsl)-3):
            if not p+p2+2 > len(pointsl)-1:
                drawLine(turt, pointsl[p][0], pointsl[p][1], pointsl[p+p2+2][0], pointsl[p+p2+2][1])
            else:
                drawLine(turt, pointsl[p][0], pointsl[p][1], pointsl[p+p2+2 - len(pointsl)][0], pointsl[p+p2+2 - len(pointsl)][1])



    turtle.update()
    # Draw a nice looking border around the rectangle
    # turt.pensize(10)            # Make it thick
    # drawRect(turt, offx, offy, sizex, sizey)
    # turt.pensize(1)             # Reset pen size
    turt.penup()
    turt.setpos(offx, offy)     #Sit in the centre of the circle at the end
    turtle.update()

    def draw(self, x, y, width, height, max_length=None, force_fields=None):
        """Draw the string. The grammar-system axiom is extended to
        the specified depth"""
        self.reset()
        turtle.setup(width,height,None,None)
        turtle.tracer(200,0)
        self.penup()
        self.setposition(x,y)
        self.origin = x, y
        self.max_length = max_length
        while not self.grammar_system.done and \
                self.grammar_system.generation < self.depth:
            self.grammar_system.step()
            if (self.max_length is not None and
                len(self.grammar_system.string) > self.max_length):
                self.hideturtle()
                print("Drawing exceeded maximum length")
                return False
        print(self.grammar_system.string)

        if force_fields:
            for force_field in force_fields:
                self.force_fields.append(Attractor(force_field['type'], force_field['effect'], force_field['x'], force_field['y'], force_field['size']))

        non_null = self._draw(self.grammar_system.string, self._rules)
        self.hideturtle()
        turtle.update()
        return non_null

  def draw(self, w, h, dot = False):
    norm = CoordinateNormalizer(self, w, h)
    window = turtle.Screen()
    cursor = turtle.Turtle()

    window.setup(w, h)
    window.setworldcoordinates(0, 0, w, h)
    window.delay(0)

    cursor.ht()

    turtle.tracer(0)

    cursor.up()
    for way in self.getWays():
      tags = self.ways[way].tags
      line = self.getPolyline(way)
      for (x, y) in line:
        cursor.pencolor('black')
        x, y = norm(x, y)
        cursor.setpos(x, y)
        if dot:
          cursor.dot()
        if not cursor.isdown():
          cursor.down()
      cursor.up()

    turtle.update()

    window.exitonclick()

def Run():
    #bounds
    nearRange = [0, 50]
    farRange = [50, 200]
    frusHL = 100

    #Logic
    nearDist = random.uniform(nearRange[0], nearRange[1])
    farDist = random.uniform(farRange[0], farRange[1])
    d = frusHL * 2
    an = nearDist
    af = farDist
    b = (d*d + af*af - an*an) / (2 * d)
    radius = math.sqrt(b*b + an*an)
    originY = -frusHL + b

    #text.insert('end', 'Origin: %d\n' % originY)

    #Render
    turtle.clear()
    turtle.hideturtle()
    turtle.tracer(0, 0)
    turtle.penup()
    turtle.goto(-farDist, frusHL)
    turtle.pendown()
    turtle.goto(-nearDist, -frusHL)
    turtle.goto(nearDist, -frusHL)
    turtle.goto(farDist, frusHL)
    turtle.goto(-farDist, frusHL)
    turtle.penup()
    DrawCircle(0, originY, radius);
    turtle.update()

def tree2(argv, x, y):
	lsys_filename2 = argv[2]
	lsys2 = ls.createLsystemFromFile( lsys_filename2 )
	print lsys2
	num_iter2 = int( 3 )
	dist = float( 5 )
	angle2 = float( 30 )
	
	s2 = ls.buildString( lsys2, num_iter2 )
	
	#draw lsystem2
	'''this is my second lsystem
		with filename mysystem2.txt
		with 5 iterations and
		with angle = 120 dist = 10'''
	turtle.up()
	turtle.goto(0,0)
	turtle.goto(x,y)
	turtle.down()
	turtle.setheading(0)
	turtle.left(90)
	turtle.pencolor('White')
	it.drawString( s2, dist, angle2 )
	
	# wait and update
	turtle.update()

def sun(argv):
	lsys_filename3 = argv[3]
	lsys3 = ls.createLsystemFromFile( lsys_filename3 )
	print lsys3
	num_iter3 = int( 3 )
	dist = 5
	angle3 = float( 120 )
	
	s3 = ls.buildString( lsys3, num_iter3 )
	
	#draw lsystem3
	'''this is my third lsystem
		with filename mysystem3.txt
		with 3 iterations and
		with angle = 45 dist = 10'''
	turtle.up()
	turtle.goto(0,0)
	turtle.goto(300, 200)
	turtle.down()
	turtle.setheading(0)
	turtle.left(90)
	turtle.pencolor('Red')
	it.drawString( s3, dist, angle3 )
	

	# wait and update
	turtle.update()

def s(n, l):

    if n == 0: # stop conditions

        # draw filled rectangle

        turtle.color('black')
        turtle.begin_fill()
        for _ in range (4):
            turtle.forward(l)
            turtle.left(90)
        turtle.end_fill()

    else: # recursion

        # around center point create 8 smalles rectangles.
        # create two rectangles on every side 
        # so you have to repeat it four times

        for _ in range(4):
            # first rectangle
            s(n-1, l/3)    
            turtle.forward(l/3)

            # second rectangle
            s(n-1, l/3)    
            turtle.forward(l/3)

            # go to next corner
            turtle.forward(l/3)
            turtle.left(90)
            
        # update screen
        turtle.update()

 def show_robot(self, robot):
     turtle.color("green")
     turtle.shape('turtle')
     turtle.setposition([robot.x + self.width / 2, robot.y + self.height / 2])
     turtle.setheading(robot.theta / pi * 180.0)
     turtle.stamp()
     turtle.update()

 def show_goal_posts(self, goal_posts):
     for p in goal_posts:
         turtle.color("#FFFF00")
         turtle.setposition(p[0], p[1])
         turtle.shape("circle")
         turtle.stamp()
         turtle.update()

	def draw(self, size, step, colors = 0, so_fast = False, turtl = None):
		if not turtl:
			turtl = franklinBegin()
		base = self.get_step(step, colors = colors)
		angle = self.angle
		ls = []
		turtl.setheading(self.head)
		for char in base:
			if char in self.fd:
				turtl.forward(size)
			elif char == '+':
				turtl.left(angle)
			elif char == '-':
				turtl.right(angle)
			elif char == '[':
				ls.append(turtl.clone())
			elif char == ']':
				turtl = ls.pop()
			elif char == 'R':
				turtl.right(360*random.random())
			elif char == 'c':
					newcolor = (0.3 + 0.7*random.random(),
                                0.3 + 0.7*random.random(),
                                0.3 + 0.7*random.random())
					turtl.color(newcolor, newcolor)
			if not so_fast:
				turtle.update()
		turtle.update()