Chart¶

graphviz¶

Shapes: https://graphviz.org/doc/info/shapes.html

• Install Graphviz

• conda install graphviz python-graphviz pydot

  os.environ["PATH"] += os.pathsep + 'C:/Program Files/Graphviz/bin/'
  from graphviz import (
      Graph,
      Digraph,
  )
  
  #Graph
  f = Graph('test', format='png')
  for k, v in data.items():
    f.node(k, v)
  f.edges(['ab', 'ac', 'bd', 'ce', 'cf'])
  f.render('test', view=True)
  
  #Digraph
  f = Digraph(filename='c:/test.gv', format='png')
  data = {
      'a': 'CEO',
      'b': 'Team-A', 'c': 'Team-B',
      'd': 'Staff-A', 'e': 'Staff-B', 'f': 'Staff-C', 
  }
  #nodes
  for k, v in data.items():
      if k == 'a':
          f.node(k, v, shape='oval')        
      elif k in ['b', 'c']:
          f.node(k, v, shape='box')
      else:
          f.node(k, v, shape='plaintext')
  
  #labels
  with g.subgraph(name='clusterA') as s:
      s.attr(rank='same')
      s.attr(rankdir='LR') #TB
      s.node('a', 'AA', shape='rnastab')
      s.node('b', 'BB', shape='signature')
  #labels
  with g.subgraph(name='clusterB') as s:
      s.attr(rank='same')
      s.node('c', 'CC', shape='trapezium')
      s.node('d', 'DD', shape='Mdiamond')  
  #invisible edge    
  g.edge('a', 'c', ltail='clusterA', lhead='clusterB', style='invis')
  #not constrained
  #a2 -- a0 [constraint=false];
  
  #edges
  f.edge('a', 'b')
  f.edge('a', 'c')
  f.edge('b', 'd')
  f.edge('c', 'e')
  f.edge('c', 'f', label='OK\nGo')
  
  f.save()
  f.render(view=0, cleanup=1)
  f
  

cloud inforstructure diagrams¶

from diagrams import Diagram
from diagrams.aws.compute import EC2
from diagrams.aws.network import ELB
from diagrams.aws.database import RDS

with Diagram("Web Service", show=False):
    ELB("lb") >> EC2("web") >> RDS("userdb")

schemdraw¶

https://stackoverflow.com/questions/71906464/how-to-add-annotations-anywhere-in-flowchart-schemdraw

import schemdraw
from schemdraw.flow import *

with schemdraw.Drawing() as d:
    d += Start.lable('start')
    d += Data(w=3,h=2).lable('input')
    d += Process(w=5).lable('process')
    d += Decision(w=5).lable('decision')
    d += Arrow(w=5).right.lable('test')