Kyle Mandli

We are still working on it. Any suggestions on a good platform?

@cpraveen we may not want to close this quite yet if this is a problem with a new version of `matplotlib`.

Not that I am aware of.

At the very least we should provide a way via the Python setting to perhaps set the fill value as there are times that you probably don't care too much...

We should provide some guidance on how to do this at the very least.

PR incoming from @rjleveque.

Does this generally work in the Okada model?

Hmm, perhaps we need to look to see if one of the inverse trig functions has an issue with `90` that we are not handling.

I second the plan. I have been wondering actually if we really need to be checking for negative depths, does this happen enough that we should spend the time doing...

Is this due to problems in the refinement in the near shore then? I am not sure if I totally understand why moving the check from `b4step` to `rpn2` would...