+- Python Forum (https://python-forum.io)
+-- Forum: Python Coding (https://python-forum.io/forum-7.html)
+--- Forum: General Coding Help (https://python-forum.io/forum-8.html)
+--- Thread: PyEDA-IPython Problem [Graph] (/thread-10694.html)
PyEDA-IPython Problem [Graph] - embash - Jun-01-2018
Hi,
I'm using ipython for drawing binary decision diagrams but i have a problem.
I'm trying to have a graphical model of this:
In [1]: %load_ext gvmagic
In [2]: import pyeda
In [3]: from pyeda.inter import *
In [4]: a, b, c = map(bddvar, 'abc')
In [5]: f = a & b | a & c | b & c
In [6]: %dotobj f
In [7]: f.to_dot()
Out[7]: 'graph BDD { n140390891948072 [label=0,shape=box]; n140390892027576 [label=1,shape=box]; n140390840874880 [label="c",shape=circle]; n140390840893680 [label="b",shape=circle]; n140390840906304 [label="b",shape=circle]; n140390840906248 [label="a",shape=circle]; n140390840874880 -- n140390891948072 [label=0,style=dashed]; n140390840874880 -- n140390892027576 [label=1]; n140390840893680 -- n140390891948072 [label=0,style=dashed]; n140390840893680 -- n140390840874880 [label=1]; n140390840906304 -- n140390840874880 [label=0,style=dashed]; n140390840906304 -- n140390892027576 [label=1]; n140390840906248 -- n140390840893680 [label=0,style=dashed]; n140390840906248 -- n140390840906304 [label=1]; }'this is the example that is available in pyeda documentation, but i didn't see any way to importing this code to jpg/png files!anyone can help me?
Apparently my graph is now made, but how do I see it? There are no instructions for that on the website
RE: PyEDA-IPython Problem [Graph] - buran - Jun-01-2018
what you get is representation of the graph in DOT language. It looks like there is a program GraphViz
http://graphviz.org/
that can generate visual representation of the graph from it
some reference:
https://graphs.grevian.org/
http://www.graphviz.org/pdf/dotguide.pdf
http://tonyballantyne.com/graphs.html
There are plenty more...
But if you want to keep it strictly python - there are python packages to work with
https://pypi.org/project/graphviz/
https://pypi.org/project/pydot/
here are google results
https://www.google.com/search?q=generate+graph+using+dot+and+python
RE: PyEDA-IPython Problem [Graph] - embash - Jun-01-2018
Thanks for your answer,
i already install the GraphViz.
but i don't know how to see the generated graph!
RE: PyEDA-IPython Problem [Graph] - buran - Jun-01-2018
what you have so far is not the graph. it's not generated yet. It is just a description of the graph in DOT language. You need to use this description AND GraphViz to generate/render the graph as a file. I have provided plenty of links to resources that you can use...
RE: PyEDA-IPython Problem [Graph] - embash - Jun-02-2018
(Jun-01-2018, 06:58 PM)buran Wrote: what you have so far is not the graph. it's not generated yet. It is just a description of the graph in DOT language. You need to use this description AND GraphViz to generate/render the graph as a file. I have provided plenty of links to resources that you can use...
Thanks, I will check the links and resources completely and will inform the result to help other people with the same problem
RE: PyEDA-IPython Problem [Graph] - buran - Jun-02-2018
note also the Resources page on GraphViz site. There is section Language Bindings
http://graphviz.org/resources/
there are more python packages than I posted