Add private _FocalMechanismConvention class for handling focal mechanism conventions and refactor Figure.meca #3551
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seisman
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weiji14
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| if convention in self._conventions: | ||
| # Convention is given via 'convention' and 'component' parameters. | ||
| if component not in {"full", "deviatoric", "dc"}: | ||
| msg = ( | ||
| f"Invalid component '{component}' for focal mechanism convention " | ||
| f"'{convention}'." | ||
| ) | ||
| raise GMTInvalidInput(msg) | ||
|
|
||
| self.convention = convention | ||
| self.code = self._conventions[convention] | ||
| if isinstance(self.code, dict): | ||
| self.code = self.code[component] | ||
| elif convention in self._codes: | ||
| # Convention is given as a single-letter code. | ||
| self.code = convention | ||
| self.convention = self._codes[convention] | ||
| else: | ||
| msg = f"Invalid focal mechanism convention '{convention}'." | ||
| raise GMTInvalidInput(msg) |
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Wondering if some of the pattern matching on 'convention' long names (e.g. akl) or single-letter aliases (e.g. a) could be simplified using StrEnum, but not sure how to handle the extra logic around 'component's. Haven't looked into it too closely, but there's supposedly ways to extend Enums with extra methods - https://realpython.com/python-enum/#adding-and-tweaking-member-methods.
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Functions
convention_code,convention_name,convention_paramsare defined inmeca.pyand they can also be used when wrappingcoupe(#2019). So it's better to move these shared functions intopygmt/src/_common.pyas proposed in #3357.Instead of simply moving the functions, this PR adds the private
_FocalMechanismConventionclass which does the same thing as the three functions. With this new class, theFigure.mecasource codes can be simplified.It's likely the
Figure.mecamethod can be further simplified, but will leave it to future PRs to make this PR small for reviewing.