如何自动将文本文件转换为graphviz点文件? [英] How to convert text file automatically to graphviz dot file?
问题描述
我想借助graphviz自动将我的文本文件转换为无向图。文本文件由以下代码组成:
0
A
关系
B
A
关系
C
B
关系
C
1
0
A
关系
C
B
关系
C
1
这里A,B和C是节点。我可能需要一个或多个图表。 0和1表示每个图的开始和结束。关系数量也可能有所不同。我试着继续sed,但迷路了。我应该如何继续获取我需要的图表?感谢您的帮助。
我自己不使用PyGraphViz,但在Python中进行文本处理很简单。给定问题中的输入文件,我称之为 gra1.txt
,以及一个Python文件 gr.py
如下所示:
import sys,subprocess
count = 0
for sys in sys .stdin:
if line [0] =='0':
outf =g%d%(count)
g =graph G%d {\\\
%(计数)
count + = 1
elif line [0] =='1':
g + =} \\\
dot = subprocess.Popen([dot ,-Tjpg,-o%s.jpg%outf],
stdin = subprocess.PIPE,universal_newlines = True)
print(g)
dot.communicate(g )
elif len(line.rstrip())== 0:
传递
else:
first = line.rstrip()
rel = sys.stdin。 readline()
last = sys.stdin.readline()。rstrip()
g + =%s - %s\\\
%(first,last)
...命令 python gra1.py< gra1.txt
生成输出:
$ python gra1.py< gra1.txt
graph G0 {
A - B
A - C
B - c
}
图G1 {
A - C
B - C
}
...以及文件 g0.jpg
:
...和 g1.jpg
:
I am trying to convert my text file to an undirected graph automatically with the help of graphviz. The text file consists of the following code:
0
A
Relation
B
A
Relation
C
B
Relation
C
1
0
A
Relation
C
B
Relation
C
1
Here A, B and C are nodes. I may require a single or multiple graphs. 0 and 1 represent the start and end of each graph. The number of relations may also vary. I tried to proceed with sed, but got lost. How should I proceed to get the graph I require? Thanks for your help.
I don't use PyGraphViz myself, but doing the text processing in Python is easy enough. Given the input file in the question, which I've called gra1.txt
, and a Python file gr.py
as follows:
import sys, subprocess
count = 0
for line in sys.stdin:
if line[0] == '0':
outf = "g%d" % (count)
g = "graph G%d {\n" % (count)
count += 1
elif line[0] == '1':
g += "}\n"
dot = subprocess.Popen(["dot", "-Tjpg", "-o%s.jpg" % outf],
stdin=subprocess.PIPE,universal_newlines=True)
print (g)
dot.communicate(g)
elif len(line.rstrip()) == 0:
pass
else:
first = line.rstrip()
rel = sys.stdin.readline()
last = sys.stdin.readline().rstrip()
g += "%s -- %s\n" % (first,last)
... the command python gra1.py <gra1.txt
produces the output:
$ python gra1.py <gra1.txt
graph G0 {
A -- B
A -- C
B -- C
}
graph G1 {
A -- C
B -- C
}
... along with the files g0.jpg
:
... and g1.jpg
:
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