#!/usr/bin/env python
# coding: utf-8

# Netlist Manipulations
# =====================
# 
# This example shows how to manipulate netlist.
# 

# In[ ]:


import PySpice.Logging.Logging as Logging
logger = Logging.setup_logging()


from PySpice import Circuit, SubCircuitFactory
from PySpice.Unit import *


class SubCircuit1(SubCircuitFactory):
    NAME = 'sub_circuit1'
    NODES = ('n1', 'n2')
    def __init__(self):
        super().__init__()
        self.R(1, 'n1', 'n2', 1@u_Ω)
        self.R(2, 'n1', 'n2', 2@u_Ω)



# Let define a circuit.
# 

# In[ ]:


circuit = Circuit('Test')



# When we add an element to a circuit, we can get a reference to it or
# ignore it:
# 

# In[ ]:


C1 = circuit.C(1, 0, 1, 1@u_uF)

circuit.C(2, 1, 2, 2@u_uF)
circuit.subcircuit(SubCircuit1())
circuit.X('1', 'sub_circuit1', 2, 0)



# We can get back an element of a circuit using its name, either as a
# class attribute or using the dictionary interface:
# 

# In[ ]:


C1 = circuit.C1
C1 = circuit['C1']



# and modify it
# 

# In[ ]:


C1.capacitance = 10@u_F



# To get the SPICE netlist of a citcuit, we just have to convert it to a
# string:
# 

# In[ ]:


print(circuit) # str(circuit) is implicit here



# same apply to an element
# 

# In[ ]:


print(C1)



# We can disable an element in the circuit
# 

# In[ ]:


C1.enabled = False
print(circuit)



# We can clone a circuit to another one
# 

# In[ ]:


circuit2 = circuit.clone(title='A clone') # title is optional
print(circuit2)



# We can remove an element
# 

# In[ ]:


C2 = circuit2.C2.detach()
print(circuit2)