1、这是纵向错位：
def f(i,j):
return i+0.1/3*abs(int(30*j%2))
def g(i,j):
return j
2、横向错位：
def f(i,j):
return i
def g(i,j):
return j+0.1/3*abs(int(30*i%2))
3、双向错位：
def f(i,j):
return i+0.1/3*abs(int(30*j%2))
def g(i,j):
return j+0.1/3*abs(int(30*i%2))
4、增加错位频率：
def f(i,j):
return i+0.1/10*abs(int(100*j%2))
def g(i,j):
return j+0.1/10*abs(int(100*i%2))
5、斜边错位：
def f(i,j):
return i+0.1*(((10*j)%2))
def g(i,j):
return j
6、def f(i,j):
return i+0.1/20*(((200*j)%2))
def g(i,j):
return j+0.1/20*((200*i%2))
7、曲边错位：
def f(i,j):
return i+0.1*((10*j%2-1)**2)
def g(i,j):
return j
8、def f(i,j):
return i+0.1/3*((30*j%2-1)**2)
def g(i,j):
return j
9、def f(i,j):
return i+0.1*((10*j%2-1)**2)
def g(i,j):
return j+0.1*((10*i%2-1)**2)
