Python networkx 图:不要将旧图与新图一起绘制 [英] Python networkx graph: Do not draw old graph together with new graph
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问题描述
下面是我的代码:
import networkx as nx
for i in range(2):
G = nx.DiGraph()
if i==0:
G.add_edge("A", "B")
elif i==1:
G.add_edge("A", "C")
import matplotlib.pyplot as plt
nx.draw(G)
plt.savefig(str(i)+".png")
G.clear()
它应该在文件 0.png 中画线 AB,在文件 1.png 中画线 AC.但是,在我运行它之后.在0.png中,有一行AB,但在1.png中,有两行:AB和AC.虽然我有G.clear()",但似乎没有清理 0.png 的内存.
It should draw line AB in file 0.png and draw line AC in file 1.png. But, after I ran it. In 0.png, there is one line AB, but in 1.png, there are two lines: AB and AC. It seems that the memory for 0.png is not cleaned, although I have had "G.clear()".
有人知道怎么解决吗?
推荐答案
我有解决方案.
在plt.savefig(str(i) + ".png")
之后添加plt.clf()
.它可以清理pyplot中的旧图形.我希望它可以帮助某人.
Add plt.clf()
after plt.savefig(str(i) + ".png")
. It can clean the old graph in pyplot. I hope it can help someone.
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