t;X":"F-[[X]+X]+F[+FX]-X", "F":"FF", "S":"X",
"direct":-45,
"angle":25,
"iter":6,
"title":"Plant"
},
{
"S":"X", "X":"-YF+XFX+FY-", "Y":"+XF-YFY-FX+",
"direct":0,
"angle":90,
"iter":6,
"title":"Hilbert"
},
{
"S":"L--F--L--F", "L":"+R-F-R+", "R":"-L+F+L-",
"direct":0,
"angle":45,
"iter":10,
"title":"Sierpinski"
},
]
def draw(ax, rule, iter=None):
if iter!=None:
rule["iter"] = iter
lines = L_System(rule).get_lines()
linecollections = collections.LineCollection(lines)
ax.add_collection(linecollections, autolim=True)
ax.axis("equal")
ax.set_axis_off()
ax.set_xlim(ax.dataLim.xmin, ax.dataLim.xmax)
ax.invert_yaxis()
fig = pl.figure(figsize=(7,4.5))
fig.patch.set_facecolor("w")
for i in range(6):
ax = fig.add_subplot(231+i)
draw(ax, rules[i])
fig.subplots_adjust(left=0,right=1,bottom=0,top=1,wspace=0,hspace=0)
pl.show()
效果图如下：
