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我正在尝试使用图形创建对角线图案，但只有一半的图案被填充。我也在尝试使相同的图案填充整个 500x500，但不知道如何。编辑：对不起，我并不是说所有的都填满了，比如从 (0-100,500) 开始有线条图案，然后 (100-200,500) 是空的，依此类推。

from graphics import *

def patchwork():
    win = GraphWin('Lines test',500,500)
    for x in range(0,101,20):
        line = Line(Point(x,0), Point(100,100-x))
        line.setFill('red')
        line.draw(win)

     for x2 in range(101,0,-20):
        line2 = Line(Point(100,0+x2), Point(x2,100))
        line2.setFill('red')
        line2.draw(win)

我希望该图案能够用对角线完全填充 100x100，但只有其中一个被填充。

4

1 回答 1

1

您可以通过在一个for循环内绘制四组线来做到这一点，如下所示。该代码是根据窗口大小编写的L，因此可以在需要时轻松更改。

from graphics import *

def patchwork():
    L = 500;
    win = GraphWin('Lines test',L,L)
    for s in range(0,L+1,20):
        line1 = Line(Point(s,0), Point(L,L-s))
        line1.setFill('red')
        line1.draw(win)

        line2 = Line(Point(L,s), Point(s,L))
        line2.setFill('red')
        line2.draw(win)

        line3 = Line(Point(s,L), Point(0,L-s))
        line3.setFill('red')
        line3.draw(win)

        line4 = Line(Point(0,s), Point(s,0))
        line4.setFill('red')
        line4.draw(win)

更新代码以生成分段模式：

from graphics import *

def patchwork():
    L = 500;
    W = 100;
    f = L/W;
    win = GraphWin('Lines test',L,L)
    for xL in [0,200,400]:
      xR = xL + W;
      for s in range(0,W+1,20):
          line1 = Line(Point(xL + s,0), Point(xL,f*s))
          line1.setFill('red')
          line1.draw(win)

          line2 = Line(Point(xL + s,0), Point(xR,L - f*s))
          line2.setFill('red')
          line2.draw(win)

          line3 = Line(Point(xL + s,L), Point(xL,L - f*s))
          line3.setFill('red')
          line3.draw(win)

          line4 = Line(Point(xL + s,L), Point(xR,f*s))
          line4.setFill('red')
          line4.draw(win)
于 2019-01-01T21:24:45.443 回答