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added draw method to circuit #266

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merged 3 commits into from
Jan 25, 2023
Merged

added draw method to circuit #266

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a2fcee8
added draw method to circuit
JamesB-1qbit Jan 16, 2023
17f4bae
suppress missing font warning
JamesB-1qbit Jan 18, 2023
8273f80
remove warning filter
JamesB-1qbit Jan 24, 2023
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12 changes: 12 additions & 0 deletions tangelo/linq/circuit.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,10 @@

import copy
from typing import List
import warnings

import numpy as np
from cirq.contrib.svg import SVGCircuit

from tangelo.linq import Gate

Expand Down Expand Up @@ -144,6 +146,16 @@ def is_mixed_state(self):
"""
return "MEASURE" in self.counts

def draw(self):
"""Method to output a prettier version of the circuit for use in jupyter notebooks that uses cirq SVGCircuit"""
# circular import
from tangelo.linq.translator.translate_cirq import translate_c_to_cirq
warnings.filterwarnings("ignore", message=".*findfont.*")
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cirq_circ = translate_c_to_cirq(self)
# Remove identity gates that are added in translate_c_to_cirq (to ensure all qubits are initialized) before drawing.
cirq_circ.__delitem__(0)
return SVGCircuit(cirq_circ)

def copy(self):
"""Return a deepcopy of circuit"""
return Circuit(copy.deepcopy(self._gates), n_qubits=self._qubits_simulated, name=self.name)
Expand Down