qiskit.visualization.plot_circuit_layout
plot_circuit_layout(circuit, backend, view='virtual')
Plot the layout of a circuit transpiled for a given target backend.
Parameters
- circuit (QuantumCircuit) – Input quantum circuit.
- backend (BaseBackend) – Target backend.
- view (str) – Layout view: either ‘virtual’ or ‘physical’.
Returns
A matplotlib figure showing layout.
Return type
Figure
Raises
- QiskitError – Invalid view type given.
- VisualizationError – Circuit has no layout attribute.
Example
import numpy as np
from qiskit import QuantumCircuit, IBMQ, transpile
from qiskit.visualization import plot_histogram, plot_gate_map, plot_circuit_layout
from qiskit.tools.monitor import job_monitor
import matplotlib.pyplot as plt
%matplotlib inline
IBMQ.load_account()
ghz = QuantumCircuit(3, 3)
ghz.h(0)
for idx in range(1,3):
ghz.cx(0,idx)
ghz.measure(range(3), range(3))
provider = IBMQ.get_provider(hub='ibm-q')
backend = provider.get_backend('ibmq_vigo')
new_circ_lv3 = transpile(ghz, backend=backend, optimization_level=3)
plot_circuit_layout(new_circ_lv3, backend)
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