qiskit.visualization.plot_circuit_layout¶
- plot_circuit_layout(circuit, backend, view='virtual', qubit_coordinates=None)[source]¶
Plot the layout of a circuit transpiled for a given target backend.
- Parameters
circuit (QuantumCircuit) -- Input quantum circuit.
backend (Backend) -- Target backend.
view (str) -- Layout view: either 'virtual' or 'physical'.
qubit_coordinates (Sequence) -- An optional sequence input (list or array being the most common) of 2d coordinates for each qubit. The length of the sequence much mast the number of qubits on the backend. The sequence should be the planar coordinates in a 0-based square grid where each qubit is located.
- 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)