填写列表绘制的形状

时间:2017-04-21 01:57:24

标签: python python-3.x

Picture of what the code does with the Top Hat我正在研究一个使用面向对象编程的项目,我们的任务是绘制一个主要是形状的类的雪人。我已经把整个雪人拉出来了,但是当试图填充那顶帽子的方形时,由于某种原因它填充了一个三角形。

import turtle

class Shape(object):

    def __init__(self,  pensize = 1, pencolor = "black"):

        self.pensize = pensize
        self.pencolor = pencolor

class Line(Shape):
    def __init__(self, start = (0.0, 0.0), end = (50.0, 0.0),
                 pencolor = "black", pensize = 1):

        Shape.__init__(self,pensize,pencolor)
        self.start = start
        self.end = end

    def __str__(self):
        return "Line(beg:{},end:{})".format(self.start ,self.end)

    def draw(self, pen):
        """draw the line using the provided pen"""
        pen.pensize(self.pensize)
        pen.pencolor(self.pencolor)
        pen.up()
        pen.goto(self.start)
        pen.down()
        pen.goto(self.end)

class Square(object):
    def __init__(self, pos = (0.0,0.0), size = 50):

        self.pos = pos
        x ,y = pos
        self.size = size
        self.side_lines = [Line((x, y), (x, y + size)),  # front, left
                           Line((x, y), (x + size, y)),  # front, bottom
                           Line((x + size, y), (x + size, y + size)),  # front, right
                           Line((x, y + size), (x + size, y + size))]  # front, top

    def __str__(self):
        return "Square(pos:{},size:{})".format(self.pos, self.size)

    def draw(self, pen):
        for l in self.side_lines:
            l.draw(pen)

class Snow_man(Shape):
    def __init__(self, pos = (0.0, 0.0)):
        self.pos= pos

    def __str__(self):
        return "Drawing a Snowman"

    def draw(self, pen):
        brim = Line((-400, 300), (-200, 300), "black", 5)
        brim.draw(pen)
        pen.color("black")
        pen.begin_fill()
        topHat = Square((-360, 300), 120)
        topHat.draw(pen)
        pen.end_fill()

pen= turtle.Turtle()
snowman= Snow_man()
snowman.draw(pen)
turtle.exitonclick()

1 个答案:

答案 0 :(得分:0)

首先,当您想要在广场的角落调用begin_fill()时,从乌龟的当前位置调用begin_fill(),这是帽檐的末端。

因此在使用begin_fill()之前使用pen.goto(-360,300)之类的东西会将乌龟带到起始位置。然后你调用begin_fill()。

接下来是你如何绘制线条,如果线条是从一个角落到另一个角落而不是仅使用fd()和right()命令作为一个简单的例子来回传递会更好。

being_fill()
fd(50)
right(90)
fd(50)
right(90)
fd(50)
right(90)
fd(50)
end_fill()

将填补一个正方形。所以我认为你必须重新调整你在side_lines中绘制的线条。喜欢从哪个坐标开始等等。