1
如何强制pygraphviz为我的节点维护固定位置。假设你有下面的代码Pygraphviz和固定节点位置
from __future__ import absolute_import
from __future__ import unicode_literals
from __future__ import print_function
from __future__ import division
import pygraphviz as pgv
from _operator import pos
A=pgv.AGraph()
A.add_node(1,color='red',pos="0,1")
A.add_node(2,color='blue',pos="1,10")
A.add_node(3,color='yellow'pos="2,2")
A.add_edge(1,2,color='green')
A.add_edge(2,3)
A.add_edge(2,2,"1")
A.add_edge(1,3)
A.graph_attr['epsilon']='0.001'
print(A.string()) # print dot file to standard output
A.layout('dot') # layout with dot
A.draw('foo.pdf') # write to file
如何强制节点在规定的位置（0.1）展现出来，（1,10和相应的（2,2）