mirror of https://github.com/Qiskit/qiskit.git
48 lines
1.9 KiB
YAML
48 lines
1.9 KiB
YAML
---
|
|
upgrade_visualization:
|
|
- |
|
|
The ``idle_wires`` parameter in all circuit drawers has been extended with a new option, ``"auto"``, which is now
|
|
the default behavior. If you still want to display wires without instructions, explicitly set ``idle_wires=True``.
|
|
|
|
When set to ``"auto"``, the behavior is as follows:
|
|
- If the circuit has a defined ``.layout`` attribute, ``idle_wires`` is automatically set to ``False`` (hiding idle wires).
|
|
- Otherwise, ``idle_wires`` remains ``True`` (showing all wires, as previous default).
|
|
|
|
Here an example. A circuit without a layout, using ``idle_wires="auto"``:
|
|
|
|
.. code-block:: text
|
|
|
|
qr_0: ────────
|
|
┌───┐┌─┐
|
|
qr_1: ┤ H ├┤M├
|
|
└───┘└╥┘
|
|
cr_0: ══════╬═
|
|
║
|
|
cr_1: ══════╩═
|
|
|
|
Once a layout is applied, ``idle_wires="auto"`` sets ``idle_wires`` to ``False``, hiding idle wires:
|
|
|
|
.. code-block:: text
|
|
|
|
┌───┐┌─┐
|
|
qr_1 -> 1 ┤ H ├┤M├
|
|
└───┘└╥┘
|
|
cr_1: ══════╩═
|
|
|
|
If you want to display all wires in a laid-out circuit, set ``idle_wires=True`` explicitly:
|
|
|
|
.. code-block:: text
|
|
|
|
qr_0 -> 0 ────────
|
|
┌───┐┌─┐
|
|
qr_1 -> 1 ┤ H ├┤M├
|
|
└───┘└╥┘
|
|
ancilla_0 -> 2 ──────╫─
|
|
║
|
|
cr_0: ══════╬═
|
|
║
|
|
cr_1: ══════╩═
|
|
|
|
As quantum computers scale to more qubits, even small circuits can produce large circuit representations after
|
|
transpilation. The ``"auto"`` setting helps improve readability by hiding unnecessary wires when possible.
|