graphviz分割错误 [英] graphviz segmentation fault
本文介绍了graphviz分割错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在建立一个有大约3000个节点的图形.我编写了一个简单的python程序来实现graphviz的技巧,但是它给我带来了分割错误,并且我不知道为什么,如果图形太大或如果我缺少什么.
I'm building a graph with many nodes, around 3000. I wrote a simple python program to do the trick with graphviz, but it gives me segmentation fault and I don't know why, if the graph is too big or if i'm missing something.
代码是:
#!/usr/bin/env python
# Import graphviz
import sys
sys.path.append('..')
sys.path.append('/usr/lib/graphviz')
import gv
# Import pygraph
from pygraph.classes.graph import graph
from pygraph.classes.digraph import digraph
from pygraph.algorithms.searching import breadth_first_search
from pygraph.readwrite.dot import write
# Graph creation
gr = graph()
file = open('nodes.dat', 'r')
line = file.readline()
while line:
gr.add_nodes([line[0:-1]])
line = file.readline()
file.close()
print 'nodes finished, beginning edges'
edges = open('edges_ok.dat', 'r')
edge = edges.readline()
while edge:
gr.add_edge((edge.split()[0], edge.split()[1]))
edge = edges.readline()
edges.close()
print 'edges finished'
print 'Drawing'
# Draw as PNG
dot = write(gr)
gvv = gv.readstring(dot)
gv.layout(gvv,'dot')
gv.render(gvv,'svg','graph.svg')
并在gv.layout()
调用时崩溃.
文件内容如下: 节点:
The files are somthing like: nodes:
node1
node2
node3
edges_ok:
node1 node2
node2 node3
推荐答案
我将布局类型从点更改为整齐,从而解决了问题.
I changed the layout type from dot to neato and that solved the problem.
我搜索了一下,似乎在大图上点的布局有点错误.
I searched a bit and it seems that the dot layout is a bit faulty on large graphs.
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