Python 如何用蟒蛇龟画一朵花
我正在练习Python技能。我很好奇如何使用海龟和函数来绘制这朵花,而不使用Python 如何用蟒蛇龟画一朵花,python,pycharm,turtle-graphics,Python,Pycharm,Turtle Graphics,我正在练习Python技能。我很好奇如何使用海龟和函数来绘制这朵花,而不使用turtle.circle(radius) 此外,我制作了一个多边形螺旋,如下所示: import turtle import math def draw_polygons(): """"Make t draws a polygon of side sd and length l""" sd = 20 area = 50000 while sd >= 3: si
turtle.circle(radius)
此外,我制作了一个多边形螺旋,如下所示:
import turtle
import math
def draw_polygons():
""""Make t draws a polygon of side sd and length l"""
sd = 20
area = 50000
while sd >= 3:
side_length = math.sqrt(area / sd * 4 * math.atan(math.pi / sd))
for i in range(sd):
for a_color in ["red", "yellow", "blue", "brown", "pink", "green", "black", "orange", "purple"]:
rest.fillcolor(a_color)
rest.begin_fill()
rest.forward(side_length)
rest.left(360/sd)
print("side length =", side_length)
rest.penup()
rest.forward(side_length / 2)
rest.pendown()
rest.right(30)
sd -= 1
rest = turtle.Turtle()
wn = turtle.Screen()
draw_polygons()
wn.exitonclick()
我想用不同的颜色填充每个多边形,我做错了什么步骤?或者我下一步应该做什么
示例多边形螺旋如下所示:
import turtle
import math
def draw_polygons():
""""Make t draws a polygon of side sd and length l"""
sd = 20
area = 50000
while sd >= 3:
side_length = math.sqrt(area / sd * 4 * math.atan(math.pi / sd))
for i in range(sd):
for a_color in ["red", "yellow", "blue", "brown", "pink", "green", "black", "orange", "purple"]:
rest.fillcolor(a_color)
rest.begin_fill()
rest.forward(side_length)
rest.left(360/sd)
print("side length =", side_length)
rest.penup()
rest.forward(side_length / 2)
rest.pendown()
rest.right(30)
sd -= 1
rest = turtle.Turtle()
wn = turtle.Screen()
draw_polygons()
wn.exitonclick()
乍一看,我会说你的缩进是错误的
for a_color in ["red", "yellow", "blue", "brown", "pink", "green", "black", "orange", "purple"]:
rest.fillcolor(a_color)
rest.begin_fill()
在这里,您可以循环使用所有颜色,然后填充形状。
颜色将始终为紫色,因为这是您在rest.fillcolor中设置的最后一种颜色
作为解决问题的一种方法,您可以创建一个颜色列表,并通过调用
rest.fillcolor(colors[(i%len(colors)))
获得所需的颜色。如果您询问两个不同的程序,让我们先解决第二个问题。除了颜色问题,您的循环逻辑与begin\u fill()不正确
内部循环,而不是外部循环。因此,让我们重新编写该程序:
from turtle import Turtle, Screen
import math
COLORS = ["red", "yellow", "blue", "brown", "pink", "green", "black", "orange", "purple"]
def draw_polygons(sides, area):
""" Draws a polygon with 'sides' sides and area 'area' """
for i, sd in enumerate(range(sides, 2, -1)):
side_length = math.sqrt(area / sd * 4 * math.atan(math.pi / sd))
# print("side length =", side_length)
a_color = COLORS[i % len(COLORS)]
rest.fillcolor(a_color)
rest.pendown()
rest.begin_fill()
for _ in range(sd):
rest.forward(side_length)
rest.left(360 / sd)
rest.end_fill()
rest.penup()
rest.forward(side_length / 2)
rest.right(30)
wn = Screen()
rest = Turtle()
rest.speed('fastest')
draw_polygons(20, 40_000)
rest.hideturtle()
wn.exitonclick()
回到你原来的问题,一种方法是在做下一种颜色的矩形之前,先把每种颜色的矩形都放下来。这里是对你的代码的一次修改,只画出图像的花瓣部分,因为我假设这就是你要问的。我只是看了下面的一些距离和角度,你需要做一些数学计算让他们做对:
from turtle import Turtle, Screen
import math
COLORS = ["green", "orange", "red", "yellow"]
def draw_polygons(area):
""" Draws a circle using rectangles with area 'area' """
side_length = math.sqrt(area * math.atan(math.pi / 4))
for a_color in COLORS:
for _ in range(12):
rest.fillcolor(a_color)
rest.forward(3 * side_length / 10)
rest.right(15)
rest.left(112) # I eyeballed this angle, need to do math
rest.pendown()
rest.begin_fill()
for _ in range(2):
rest.forward(side_length * 2)
rest.left(90)
rest.forward(side_length / 2)
rest.left(90)
rest.end_fill()
rest.penup()
rest.right(112) # undo rotation
rest.forward(3 * side_length / 10)
rest.right(15)
# I eyeballed these opposing parameters -- need to do the math
rest.forward(2 * side_length / 13)
rest.right(7.5)
wn = Screen()
rest = Turtle()
rest.speed('fastest')
rest.penup()
rest.sety(120)
draw_polygons(20_000)
rest.hideturtle()
wn.exitonclick()
然而,我怎样才能用海龟图形和功能画出与图片一样的花呢?哦,我的上帝,你刚刚帮了我这么多,伙计。谢谢你,非常感谢。我已经设法解决了螺旋多边形的颜色问题,并且已经解决了,这与你的解决方案不同,但我很感激你的尝试。但我仍然在努力解决这个问题花的身体部位和龟的内部形状,龟也有不同的颜色。希望尽快收到你的来信。