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2079 lines (1982 loc) · 65.8 KB
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#!/usr/bin/env python3
"""
Utilities for global configuration.
"""
import functools
import re
from collections.abc import MutableMapping
from numbers import Integral, Real
import matplotlib.rcsetup as msetup
import numpy as np
from cycler import Cycler
from matplotlib import RcParams
from matplotlib import rcParamsDefault as _rc_matplotlib_native
from matplotlib.colors import Colormap
from matplotlib.font_manager import font_scalings
from matplotlib.fontconfig_pattern import parse_fontconfig_pattern
from . import ic # noqa: F401
from . import warnings
from .versions import _version_mpl
# Regex for "probable" unregistered named colors. Try to retain warning message for
# colors that were most likely a failed literal string evaluation during startup.
REGEX_NAMED_COLOR = re.compile(r'\A[a-zA-Z0-9:_ -]*\Z')
# Configurable validation settings
# NOTE: These are set to True inside __init__.py
# NOTE: We really cannot delay creation of 'rc' until after registration because
# colormap creation depends on rc['cmap.lut'] and rc['cmap.listedthresh'].
# And anyway to revoke that dependence would require other uglier kludges.
VALIDATE_REGISTERED_CMAPS = False
VALIDATE_REGISTERED_COLORS = False
# Initial synced properties
# NOTE: Important that LINEWIDTH is less than matplotlib default of 0.8.
# In general want axes lines to look about as thick as text.
# NOTE: Important that default values are equivalent to the *validated* values
# used in the RcParams dictionaries. Otherwise _user_settings() detects changes.
# NOTE: We *could* just leave some settings empty and leave it up to Configurator
# to sync them when proplot is imported... but also sync them here so that we can
# simply compare any Configurator state to these dictionaries and use save() to
# save only the settings changed by the user.
BLACK = 'black'
CYCLE = 'colorblind'
CMAPCYC = 'twilight'
CMAPDIV = 'BuRd'
CMAPSEQ = 'Fire'
CMAPCAT = 'colorblind10'
DIVERGING = 'div'
FRAMEALPHA = 0.8 # legend and colorbar
FONTNAME = 'sans-serif'
FONTSIZE = 9.0
GRIDALPHA = 0.1
GRIDBELOW = 'line'
GRIDPAD = 3.0
GRIDRATIO = 0.5 # differentiated from major by half size reduction
GRIDSTYLE = '-'
LABELPAD = 4.0 # default is 4.0, previously was 3.0
LARGESIZE = 'med-large'
LINEWIDTH = 0.6
MARGIN = 0.05
MATHTEXT = False
SMALLSIZE = 'medium'
TICKDIR = 'out'
TICKLEN = 4.0
TICKLENRATIO = 0.5 # very noticeable length reduction
TICKMINOR = True
TICKPAD = 2.0
TICKWIDTHRATIO = 0.8 # very slight width reduction
TITLEPAD = 5.0 # default is 6.0, previously was 3.0
WHITE = 'white'
ZLINES = 2 # default zorder for lines
ZPATCHES = 1
# Preset legend locations and aliases
LEGEND_LOCS = {
'fill': 'fill',
'inset': 'best',
'i': 'best',
0: 'best',
1: 'upper right',
2: 'upper left',
3: 'lower left',
4: 'lower right',
5: 'center left',
6: 'center right',
7: 'lower center',
8: 'upper center',
9: 'center',
'l': 'left',
'r': 'right',
'b': 'bottom',
't': 'top',
'c': 'center',
'ur': 'upper right',
'ul': 'upper left',
'll': 'lower left',
'lr': 'lower right',
'cr': 'center right',
'cl': 'center left',
'uc': 'upper center',
'lc': 'lower center',
}
for _loc in tuple(LEGEND_LOCS.values()):
if _loc not in LEGEND_LOCS:
LEGEND_LOCS[_loc] = _loc # identity assignments
TEXT_LOCS = {
key: val for key, val in LEGEND_LOCS.items() if val in (
'left', 'center', 'right',
'upper left', 'upper center', 'upper right',
'lower left', 'lower center', 'lower right',
)
}
COLORBAR_LOCS = {
key: val for key, val in LEGEND_LOCS.items() if val in (
'fill', 'best',
'left', 'right', 'top', 'bottom',
'upper left', 'upper right', 'lower left', 'lower right',
)
}
PANEL_LOCS = {
key: val for key, val in LEGEND_LOCS.items() if val in (
'left', 'right', 'top', 'bottom'
)
}
ALIGN_LOCS = {
key: val for key, val in LEGEND_LOCS.items() if isinstance(key, str) and val in (
'left', 'right', 'top', 'bottom', 'center',
)
}
# Matplotlib setting categories
EM_KEYS = ( # em-width units
'legend.borderpad',
'legend.labelspacing',
'legend.handlelength',
'legend.handleheight',
'legend.handletextpad',
'legend.borderaxespad',
'legend.columnspacing',
)
PT_KEYS = (
'font.size', # special case
'xtick.major.size',
'xtick.minor.size',
'ytick.major.size',
'ytick.minor.size',
'xtick.major.pad',
'xtick.minor.pad',
'ytick.major.pad',
'ytick.minor.pad',
'xtick.major.width',
'xtick.minor.width',
'ytick.major.width',
'ytick.minor.width',
'axes.labelpad',
'axes.titlepad',
'axes.linewidth',
'grid.linewidth',
'patch.linewidth',
'hatch.linewidth',
'lines.linewidth',
'contour.linewidth',
)
FONT_KEYS = set() # dynamically add to this below
def _get_default_param(key):
"""
Get the default parameter from one of three places. This is used for
the :rc: role when compiling docs and when saving proplotrc files.
"""
sentinel = object()
for dict_ in (
_rc_proplot_default,
_rc_matplotlib_default, # imposed defaults
_rc_matplotlib_native, # native defaults
):
value = dict_.get(key, sentinel)
if value is not sentinel:
return value
raise KeyError(f'Invalid key {key!r}.')
def _validate_abc(value):
"""
Validate a-b-c setting.
"""
try:
if np.iterable(value):
return all(map(_validate_bool, value))
else:
return _validate_bool(value)
except ValueError:
pass
if isinstance(value, str):
if 'a' in value.lower():
return value
else:
if all(isinstance(_, str) for _ in value):
return tuple(value)
raise ValueError(
"A-b-c setting must be string containing 'a' or 'A' or sequence of strings."
)
def _validate_belongs(*options):
"""
Return a validator ensuring the item belongs in the list.
"""
def _validate_belongs(value): # noqa: E306
for opt in options:
if isinstance(value, str) and isinstance(opt, str):
if value.lower() == opt.lower(): # noqa: E501
return opt
elif value is True or value is False or value is None:
if value is opt:
return opt
elif value == opt:
return opt
raise ValueError(
f'Invalid value {value!r}. Options are: '
+ ', '.join(map(repr, options))
+ '.'
)
return _validate_belongs
def _validate_cmap(subtype):
"""
Validate the colormap or cycle. Possibly skip name registration check
and assign the colormap name rather than a colormap instance.
"""
def _validate_cmap(value):
name = value
if isinstance(value, str):
if VALIDATE_REGISTERED_CMAPS:
from ..colors import _get_cmap_subtype
_get_cmap_subtype(name, subtype) # may trigger useful error message
return name
elif isinstance(value, Colormap):
name = getattr(value, 'name', None)
if isinstance(name, str):
from ..colors import _cmap_database # avoid circular imports
_cmap_database[name] = value
return name
raise ValueError(f'Invalid colormap or color cycle name {name!r}.')
return _validate_cmap
def _validate_color(value, alternative=None):
"""
Validate the color. Possibly skip name registration check.
"""
if alternative and isinstance(value, str) and value.lower() == alternative:
return value
try:
return msetup.validate_color(value)
except ValueError:
if (
VALIDATE_REGISTERED_COLORS
or not isinstance(value, str)
or not REGEX_NAMED_COLOR.match(value)
):
raise ValueError(f'{value!r} is not a valid color arg.') from None
return value
except Exception as error:
raise error
def _validate_fontprops(s):
"""
Parse font property with support for ``'regular'`` placeholder.
"""
b = s.startswith('regular')
if b:
s = s.replace('regular', 'sans', 1)
parse_fontconfig_pattern(s)
if b:
s = s.replace('sans', 'regular', 1)
return s
def _validate_fontsize(value):
"""
Validate font size with new scalings and permitting other units.
"""
if value is None and None in font_scalings: # has it always been this way?
return
if isinstance(value, str):
value = value.lower()
if value in font_scalings:
return value
try:
return _validate_pt(value) # note None is also a valid font size!
except ValueError:
pass
raise ValueError(
f'Invalid font size {value!r}. Can be points or one of the '
'preset scalings: ' + ', '.join(map(repr, font_scalings)) + '.'
)
def _validate_labels(labels, lon=True):
"""
Convert labels argument to length-4 boolean array.
"""
if labels is None:
return [None] * 4
which = 'lon' if lon else 'lat'
if isinstance(labels, str):
labels = (labels,)
array = np.atleast_1d(labels).tolist()
if all(isinstance(_, str) for _ in array):
bool_ = [False] * 4
opts = ('left', 'right', 'bottom', 'top')
for string in array:
if string in opts:
string = string[0]
elif set(string) - set('lrbt'):
raise ValueError(
f'Invalid {which}label string {string!r}. Must be one of '
+ ', '.join(map(repr, opts))
+ " or a string of single-letter characters like 'lr'."
)
for char in string:
bool_['lrbt'.index(char)] = True
array = bool_
if len(array) == 1:
array.append(False) # default is to label bottom or left
if len(array) == 2:
if lon:
array = [False, False, *array]
else:
array = [*array, False, False]
if len(array) != 4 or any(isinstance(_, str) for _ in array):
raise ValueError(f'Invalid {which}label spec: {labels}.')
return array
def _validate_or_none(validator):
"""
Allow none otherwise pass to the input validator.
"""
@functools.wraps(validator)
def _validate_or_none(value):
if value is None:
return
if isinstance(value, str) and value.lower() == 'none':
return
return validator(value)
_validate_or_none.__name__ = validator.__name__ + '_or_none'
return _validate_or_none
def _validate_rotation(value):
"""
Valid rotation arguments.
"""
if isinstance(value, str) and value.lower() in ('horizontal', 'vertical'):
return value
return _validate_float(value)
def _validate_units(dest):
"""
Validate the input using the units function.
"""
def _validate_units(value):
if isinstance(value, str):
from ..utils import units # avoid circular imports
value = units(value, dest) # validation happens here
return _validate_float(value)
return _validate_units
def _rst_table():
"""
Return the setting names and descriptions in an RST-style table.
"""
# Initial stuff
colspace = 2 # spaces between each column
descrips = tuple(descrip for (_, _, descrip) in _rc_proplot_table.values())
keylen = len(max((*_rc_proplot_table, 'Key'), key=len)) + 4 # literal backticks
vallen = len(max((*descrips, 'Description'), key=len))
divider = '=' * keylen + ' ' * colspace + '=' * vallen + '\n'
header = 'Key' + ' ' * (keylen - 3 + colspace) + 'Description\n'
# Build table
string = divider + header + divider
for key, (_, _, descrip) in _rc_proplot_table.items():
spaces = ' ' * (keylen - (len(key) + 4) + colspace)
string += f'``{key}``{spaces}{descrip}\n'
string = string + divider
return '.. rst-class:: proplot-rctable\n\n' + string.strip()
def _to_string(value):
"""
Translate setting to a string suitable for saving.
"""
# NOTE: Never safe hex strings with leading '#'. In both matplotlibrc
# and proplotrc this will be read as comment character.
if value is None or isinstance(value, (str, bool, Integral)):
value = str(value)
if value[:1] == '#': # i.e. a HEX string
value = value[1:]
elif isinstance(value, Real):
value = str(round(value, 6)) # truncate decimals
elif isinstance(value, Cycler):
value = repr(value) # special case!
elif isinstance(value, (list, tuple, np.ndarray)):
value = ', '.join(map(_to_string, value)) # sexy recursion
else:
value = None
return value
def _yaml_table(rcdict, comment=True, description=False):
"""
Return the settings as a nicely tabulated YAML-style table.
"""
prefix = '# ' if comment else ''
data = []
for key, args in rcdict.items():
# Optionally append description
includes_descrip = isinstance(args, tuple) and len(args) == 3
if not description:
descrip = ''
value = args[0] if includes_descrip else args
elif includes_descrip:
value, validator, descrip = args
descrip = '# ' + descrip # skip the validator
else:
raise ValueError(f'Unexpected input {key}={args!r}.')
# Translate object to string
value = _to_string(value)
if value is not None:
data.append((key, value, descrip))
else:
warnings._warn_proplot(
f'Failed to write rc setting {key} = {value!r}. Must be None, bool, '
'string, int, float, a list or tuple thereof, or a property cycler.'
)
# Generate string
string = ''
keylen = len(max(rcdict, key=len))
vallen = len(max((tup[1] for tup in data), key=len))
for key, value, descrip in data:
space1 = ' ' * (keylen - len(key) + 1)
space2 = ' ' * (vallen - len(value) + 2) if descrip else ''
string += f'{prefix}{key}:{space1}{value}{space2}{descrip}\n'
return string.strip()
class _RcParams(MutableMapping, dict):
"""
A simple dictionary with locked inputs and validated assignments.
"""
# NOTE: By omitting __delitem__ in MutableMapping we effectively
# disable mutability. Also disables deleting items with pop().
def __init__(self, source, validate):
self._validate = validate
for key, value in source.items():
self.__setitem__(key, value) # trigger validation
def __repr__(self):
return RcParams.__repr__(self)
def __str__(self):
return RcParams.__repr__(self)
def __len__(self):
return dict.__len__(self)
def __iter__(self):
# NOTE: Proplot doesn't add deprecated args to dictionary so
# we don't have to suppress warning messages here.
yield from sorted(dict.__iter__(self))
def __getitem__(self, key):
key, _ = self._check_key(key)
return dict.__getitem__(self, key)
def __setitem__(self, key, value):
key, value = self._check_key(key, value)
if key not in self._validate:
raise KeyError(f'Invalid rc key {key!r}.')
try:
value = self._validate[key](value)
except (ValueError, TypeError) as error:
raise ValueError(f'Key {key}: {error}') from None
if key is not None:
dict.__setitem__(self, key, value)
@staticmethod
def _check_key(key, value=None):
# NOTE: If we assigned from the Configurator then the deprecated key will
# still propagate to the same 'children' as the new key.
# NOTE: This also translates values for special cases of renamed keys.
# Currently the special cases are 'basemap' and 'cartopy.autoextent'.
if key in _rc_renamed:
key_new, version = _rc_renamed[key]
warnings._warn_proplot(
f'The rc setting {key!r} was deprecated in version {version} and may be ' # noqa: E501
f'removed in {warnings._next_release()}. Please use {key_new!r} instead.' # noqa: E501
)
if key == 'basemap': # special case
value = ('cartopy', 'basemap')[int(bool(value))]
if key == 'cartopy.autoextent':
value = ('globe', 'auto')[int(bool(value))]
key = key_new
if key in _rc_removed:
info, version = _rc_removed[key]
raise KeyError(
f'The rc setting {key!r} was removed in version {version}.'
+ (info and ' ' + info)
)
return key, value
def copy(self):
source = {key: dict.__getitem__(self, key) for key in self}
return _RcParams(source, self._validate)
# Borrow validators from matplotlib and construct some new ones
# WARNING: Instead of validate_fontweight matplotlib used validate_string
# until version 3.1.2. So use that as backup here.
# WARNING: We create custom 'or none' validators since their
# availability seems less consistent across matplotlib versions.
_validate_pt = _validate_units('pt')
_validate_em = _validate_units('em')
_validate_in = _validate_units('in')
_validate_bool = msetup.validate_bool
_validate_int = msetup.validate_int
_validate_float = msetup.validate_float
_validate_string = msetup.validate_string
_validate_fontname = msetup.validate_stringlist # same as 'font.family'
_validate_fontweight = getattr(msetup, 'validate_fontweight', _validate_string)
# Special style validators
# See: https://matplotlib.org/stable/api/_as_gen/matplotlib.patches.FancyBboxPatch.html
_validate_boxstyle = _validate_belongs(
'square', 'circle', 'round', 'round4', 'sawtooth', 'roundtooth',
)
if hasattr(msetup, '_validate_linestyle'): # fancy validation including dashes
_validate_linestyle = msetup._validate_linestyle
else: # no dashes allowed then but no big deal
_validate_linestyle = _validate_belongs(
'-', ':', '--', '-.', 'solid', 'dashed', 'dashdot', 'dotted', 'none', ' ', '',
)
# Patch existing matplotlib validators.
# NOTE: validate_fontsizelist is unused in recent matplotlib versions and
# validate_colorlist is only used with prop cycle eval (which we don't care about)
font_scalings['med'] = 1.0 # consistent shorthand
font_scalings['med-small'] = 0.9 # add scaling
font_scalings['med-large'] = 1.1 # add scaling
if not hasattr(RcParams, 'validate'): # not mission critical so skip
warnings._warn_proplot('Failed to update matplotlib rcParams validators.')
else:
_validate = RcParams.validate
_validate['image.cmap'] = _validate_cmap('continuous')
_validate['legend.loc'] = _validate_belongs(*LEGEND_LOCS)
for _key, _validator in _validate.items():
if _validator is getattr(msetup, 'validate_fontsize', None): # should exist
FONT_KEYS.add(_key)
_validate[_key] = _validate_fontsize
if _validator is getattr(msetup, 'validate_fontsize_None', None):
FONT_KEYS.add(_key)
_validate[_key] = _validate_or_none(_validate_fontsize)
if _validator is getattr(msetup, 'validate_font_properties', None):
_validate[_key] = _validate_fontprops
if _validator is getattr(msetup, 'validate_color', None): # should exist
_validate[_key] = _validate_color
if _validator is getattr(msetup, 'validate_color_or_auto', None):
_validate[_key] = functools.partial(_validate_color, alternative='auto')
if _validator is getattr(msetup, 'validate_color_or_inherit', None):
_validate[_key] = functools.partial(_validate_color, alternative='inherit')
for _keys, _validator_replace in ((EM_KEYS, _validate_em), (PT_KEYS, _validate_pt)):
for _key in _keys:
_validator = _validate.get(_key, None)
if _validator is None:
continue
if _validator is msetup.validate_float:
_validate[_key] = _validator_replace
if _validator is getattr(msetup, 'validate_float_or_None'):
_validate[_key] = _validate_or_none(_validator_replace)
# Proplot overrides of matplotlib default style
# WARNING: Critical to include every parameter here that can be changed by a
# "meta" setting so that _get_default_param returns the value imposed by *proplot*
# and so that "changed" settings detected by Configurator.save are correct.
_rc_matplotlib_default = {
'axes.axisbelow': GRIDBELOW,
'axes.formatter.use_mathtext': MATHTEXT,
'axes.grid': True, # enable lightweight transparent grid by default
'axes.grid.which': 'major',
'axes.edgecolor': BLACK,
'axes.labelcolor': BLACK,
'axes.labelpad': LABELPAD, # more compact
'axes.labelsize': SMALLSIZE,
'axes.labelweight': 'normal',
'axes.linewidth': LINEWIDTH,
'axes.titlepad': TITLEPAD, # more compact
'axes.titlesize': LARGESIZE,
'axes.titleweight': 'normal',
'axes.xmargin': MARGIN,
'axes.ymargin': MARGIN,
'errorbar.capsize': 3.0,
'figure.autolayout': False,
'figure.figsize': (4.0, 4.0), # for interactife backends
'figure.dpi': 100,
'figure.facecolor': '#f4f4f4', # similar to MATLAB interface
'figure.titlesize': LARGESIZE,
'figure.titleweight': 'bold', # differentiate from axes titles
'font.serif': [
'TeX Gyre Schola', # Century lookalike
'TeX Gyre Bonum', # Bookman lookalike
'TeX Gyre Termes', # Times New Roman lookalike
'TeX Gyre Pagella', # Palatino lookalike
'DejaVu Serif',
'Bitstream Vera Serif',
'Computer Modern Roman',
'Bookman',
'Century Schoolbook L',
'Charter',
'ITC Bookman',
'New Century Schoolbook',
'Nimbus Roman No9 L',
'Noto Serif',
'Palatino',
'Source Serif Pro',
'Times New Roman',
'Times',
'Utopia',
'serif',
],
'font.sans-serif': [
'TeX Gyre Heros', # Helvetica lookalike
'DejaVu Sans',
'Bitstream Vera Sans',
'Computer Modern Sans Serif',
'Arial',
'Avenir',
'Fira Math',
'Fira Sans',
'Frutiger',
'Geneva',
'Gill Sans',
'Helvetica',
'Lucid',
'Lucida Grande',
'Myriad Pro',
'Noto Sans',
'Roboto',
'Source Sans Pro',
'Tahoma',
'Trebuchet MS',
'Ubuntu',
'Univers',
'Verdana',
'sans-serif',
],
'font.cursive': [
'TeX Gyre Chorus', # Chancery lookalike
'Apple Chancery',
'Felipa',
'Sand',
'Script MT',
'Textile',
'Zapf Chancery',
'cursive',
],
'font.fantasy': [
'TeX Gyre Adventor', # Avant Garde lookalike
'Avant Garde',
'Charcoal',
'Chicago',
'Comic Sans MS',
'Futura',
'Humor Sans',
'Impact',
'Optima',
'Western',
'xkcd',
'fantasy',
],
'font.monospace': [
'TeX Gyre Cursor', # Courier lookalike
'DejaVu Sans Mono',
'Bitstream Vera Sans Mono',
'Computer Modern Typewriter',
'Andale Mono',
'Courier New',
'Courier',
'Fixed',
'Nimbus Mono L',
'Terminal',
'monospace',
],
'font.family': FONTNAME,
'font.size': FONTSIZE,
'grid.alpha': GRIDALPHA, # lightweight unobtrusive gridlines
'grid.color': BLACK, # lightweight unobtrusive gridlines
'grid.linestyle': GRIDSTYLE,
'grid.linewidth': LINEWIDTH,
'hatch.color': BLACK,
'hatch.linewidth': LINEWIDTH,
'image.cmap': CMAPSEQ,
'lines.linestyle': '-',
'lines.linewidth': 1.5,
'lines.markersize': 6.0,
'legend.borderaxespad': 0, # i.e. flush against edge
'legend.borderpad': 0.5, # a bit more roomy
'legend.columnspacing': 1.5, # a bit more compact (see handletextpad)
'legend.edgecolor': BLACK,
'legend.facecolor': WHITE,
'legend.fancybox': False, # i.e. BboxStyle 'square' not 'round'
'legend.fontsize': SMALLSIZE,
'legend.framealpha': FRAMEALPHA,
'legend.handleheight': 1.0, # default is 0.7
'legend.handlelength': 2.0, # default is 2.0
'legend.handletextpad': 0.5, # a bit more compact (see columnspacing)
'mathtext.default': 'it',
'mathtext.fontset': 'custom',
'mathtext.bf': 'regular:bold', # custom settings implemented above
'mathtext.cal': 'cursive',
'mathtext.it': 'regular:italic',
'mathtext.rm': 'regular',
'mathtext.sf': 'regular',
'mathtext.tt': 'monospace',
'patch.linewidth': LINEWIDTH,
'savefig.bbox': None, # do not use 'tight'
'savefig.directory': '', # use the working directory
'savefig.dpi': 1000, # use academic journal recommendation
'savefig.facecolor': WHITE, # use white instead of 'auto'
'savefig.format': 'pdf', # use vector graphics
'savefig.transparent': False,
'xtick.color': BLACK,
'xtick.direction': TICKDIR,
'xtick.labelsize': SMALLSIZE,
'xtick.major.pad': TICKPAD,
'xtick.major.size': TICKLEN,
'xtick.major.width': LINEWIDTH,
'xtick.minor.pad': TICKPAD,
'xtick.minor.size': TICKLEN * TICKLENRATIO,
'xtick.minor.width': LINEWIDTH * TICKWIDTHRATIO,
'xtick.minor.visible': TICKMINOR,
'ytick.color': BLACK,
'ytick.direction': TICKDIR,
'ytick.labelsize': SMALLSIZE,
'ytick.major.pad': TICKPAD,
'ytick.major.size': TICKLEN,
'ytick.major.width': LINEWIDTH,
'ytick.minor.pad': TICKPAD,
'ytick.minor.size': TICKLEN * TICKLENRATIO,
'ytick.minor.width': LINEWIDTH * TICKWIDTHRATIO,
'ytick.minor.visible': TICKMINOR,
}
if 'mathtext.fallback' in _rc_matplotlib_native:
_rc_matplotlib_default['mathtext.fallback'] = 'stixsans'
# Proplot pseudo-setting defaults, validators, and descriptions
# NOTE: Cannot have different a-b-c and title paddings because they are both controlled
# by matplotlib's _title_offset_trans transform and want to keep them aligned anyway.
_addendum_rotation = " Must be 'vertical', 'horizontal', or a float indicating degrees."
_addendum_em = ' Interpreted by `~proplot.utils.units`. Numeric units are em-widths.'
_addendum_in = ' Interpreted by `~proplot.utils.units`. Numeric units are inches.'
_addendum_pt = ' Interpreted by `~proplot.utils.units`. Numeric units are points.'
_addendum_font = (
' Must be a :ref:`relative font size <font_table>` or unit string '
'interpreted by `~proplot.utils.units`. Numeric units are points.'
)
_rc_proplot_table = {
# Stylesheet
'style': (
None,
_validate_or_none(_validate_string),
'The default matplotlib `stylesheet '
'<https://matplotlib.org/stable/gallery/style_sheets/style_sheets_reference.html>`__ ' # noqa: E501
'name. If ``None``, a custom proplot style is used. '
"If ``'default'``, the default matplotlib style is used."
),
# A-b-c labels
'abc': (
False,
_validate_abc,
'If ``False`` then a-b-c labels are disabled. If ``True`` the default label '
'style ``a`` is used. If string this indicates the style and must contain the '
"character ``a`` or ``A``, for example ``'a.'`` or ``'(A)'``."
),
'abc.border': (
True,
_validate_bool,
'Whether to draw a white border around a-b-c labels '
'when :rcraw:`abc.loc` is inside the axes.'
),
'abc.borderwidth': (
1.5,
_validate_pt,
'Width of the white border around a-b-c labels.'
),
'abc.bbox': (
False,
_validate_bool,
'Whether to draw semi-transparent bounding boxes around a-b-c labels '
'when :rcraw:`abc.loc` is inside the axes.'
),
'abc.bboxcolor': (
WHITE,
_validate_color,
'a-b-c label bounding box color.'
),
'abc.bboxstyle': (
'square',
_validate_boxstyle,
'a-b-c label bounding box style.'
),
'abc.bboxalpha': (
0.5,
_validate_float,
'a-b-c label bounding box opacity.'
),
'abc.bboxpad': (
None,
_validate_or_none(_validate_pt),
'Padding for the a-b-c label bounding box. By default this is scaled '
'to make the box flush against the subplot edge.' + _addendum_pt
),
'abc.color': (
BLACK,
_validate_color,
'a-b-c label color.'
),
'abc.loc': (
'left', # left side above the axes
_validate_belongs(*TEXT_LOCS),
'a-b-c label position. '
'For options see the :ref:`location table <title_table>`.'
),
'abc.size': (
LARGESIZE,
_validate_fontsize,
'a-b-c label font size.' + _addendum_font
),
'abc.titlepad': (
LABELPAD,
_validate_pt,
'Padding separating the title and a-b-c label when in the same location.'
+ _addendum_pt
),
'abc.weight': (
'bold',
_validate_fontweight,
'a-b-c label font weight.'
),
# Autoformatting
'autoformat': (
True,
_validate_bool,
'Whether to automatically apply labels from `pandas.Series`, '
'`pandas.DataFrame`, and `xarray.DataArray` objects passed to '
'plotting functions. See also :rcraw:`unitformat`.'
),
# Axes additions
'axes.alpha': (
None,
_validate_or_none(_validate_float),
'Opacity of the background axes patch.'
),
'axes.inbounds': (
True,
_validate_bool,
'Whether to exclude out-of-bounds data when determining the default *y* (*x*) '
'axis limits and the *x* (*y*) axis limits have been locked.'
),
'axes.margin': (
MARGIN,
_validate_float,
'The fractional *x* and *y* axis margins when limits are unset.'
),
# Country borders
'borders': (
False,
_validate_bool,
'Toggles country border lines on and off.'
),
'borders.alpha': (
None,
_validate_or_none(_validate_float),
'Opacity for country border lines.',
),
'borders.color': (
BLACK,
_validate_color,
'Line color for country border lines.'
),
'borders.linewidth': (
LINEWIDTH,
_validate_pt,
'Line width for country border lines.'
),
'borders.zorder': (
ZLINES,
_validate_float,
'Z-order for country border lines.'
),
# Bottom subplot labels
'bottomlabel.color': (
BLACK,
_validate_color,
'Font color for column labels on the bottom of the figure.'
),
'bottomlabel.pad': (
TITLEPAD,
_validate_pt,
'Padding between axes content and column labels on the bottom of the figure.'
+ _addendum_pt
),
'bottomlabel.rotation': (
'horizontal',
_validate_rotation,
'Rotation for column labels at the bottom of the figure.' + _addendum_rotation
),
'bottomlabel.size': (
LARGESIZE,
_validate_fontsize,
'Font size for column labels on the bottom of the figure.' + _addendum_font
),
'bottomlabel.weight': (
'bold',
_validate_fontweight,
'Font weight for column labels on the bottom of the figure.'
),
# Coastlines
'coast': (
False,
_validate_bool,
'Toggles coastline lines on and off.'
),
'coast.alpha': (
None,
_validate_or_none(_validate_float),
'Opacity for coast lines',
),
'coast.color': (
BLACK,
_validate_color,
'Line color for coast lines.'
),
'coast.linewidth': (
LINEWIDTH,
_validate_pt,
'Line width for coast lines.'
),
'coast.zorder': (
ZLINES,
_validate_float,
'Z-order for coast lines.'
),
# Colorbars
'colorbar.edgecolor': (
BLACK,
_validate_color,
'Color for the inset colorbar frame edge.'
),
'colorbar.extend': (
1.3,
_validate_em,
'Length of rectangular or triangular "extensions" for panel colorbars.'
+ _addendum_em
),
'colorbar.fancybox': (
False,
_validate_bool,
'Whether to use a "fancy" round bounding box for inset colorbar frames.'
),
'colorbar.framealpha': (
FRAMEALPHA,
_validate_float,
'Opacity for inset colorbar frames.'
),
'colorbar.facecolor': (
WHITE,
_validate_color,
'Color for the inset colorbar frame.'