Pulse and Schedule plots do not start at t0=0

Information

• Qiskit Terra version:
• Python version:
• Operating system:

What is the current behavior?

As noted in https://github.com/Qiskit/qiskit-terra/pull/3418#pullrequestreview-313349295, the pulse and schedule plots do not start at t=0, nor do they finish at t=t0+duration

Steps to reproduce the problem

import qiskit.pulse as pulse
import qiskit.pulse.pulse_lib as pulse_lib
sched = pulse.Schedule()
sched += pulse_lib.constant(10, 1.0)(pulse.DriveChannel(1))
sched.draw(channels_to_plot=[pulse.DriveChannel(1)])

What is the expected behavior?

They should start and stop at t0(duration)

Suggested solutions

Any ideas @nkanazawa1989?

[faraimazh]

the files are here. https://github.com/Qiskit/qiskit-terra/tree/master/qiskit/visualization/pulse

and interpolation code is here. https://github.com/Qiskit/qiskit-terra/blob/ff6b94120520b5c27d6316088eafc90338a97914/qiskit/visualization/pulse/interpolation.py#L26-L49

good luck and I’m happy to help 😃

Thanks. I am on it.

[faraimazh]

Sure, no problem. If I make progress I will let you know.

On Wed., 8 Jan. 2020, 01:23 Thomas Alexander, [e-mail] wrote:

@faraimazh https://github.com/faraimazh do you still plan to work on this? Otherwise, I will reassign.

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