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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

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<h1>Source code for matplotlib.axis</h1><div class="highlight"><pre>

"""

Classes for the ticks and x and y axis

"""

from __future__ import (absolute_import, division, print_function,

unicode_literals)

import six

import logging

from matplotlib import rcParams

import matplotlib.artist as artist

from matplotlib.artist import allow_rasterization

import matplotlib.cbook as cbook

from matplotlib.cbook import _string_to_bool

import matplotlib.font_manager as font_manager

import matplotlib.lines as mlines

import matplotlib.patches as mpatches

import matplotlib.scale as mscale

import matplotlib.text as mtext

import matplotlib.ticker as mticker

import matplotlib.transforms as mtransforms

import matplotlib.units as munits

import numpy as np

import warnings

_log = logging.getLogger(__name__)

GRIDLINE_INTERPOLATION_STEPS = 180

# This list is being used for compatibility with Axes.grid, which

# allows all Line2D kwargs.

_line_AI = artist.ArtistInspector(mlines.Line2D)

_line_param_names = _line_AI.get_setters()

_line_param_aliases = [list(d.keys())[0] for d in _line_AI.aliasd.values()]

_gridline_param_names = ['grid_' + name

for name in _line_param_names + _line_param_aliases]

<div class="viewcode-block" id="Tick"><a class="viewcode-back" href="../../api/axis_api.html#matplotlib.axis.Tick">[docs]</a>class Tick(artist.Artist):

"""

Abstract base class for the axis ticks, grid lines and labels

1 refers to the bottom of the plot for xticks and the left for yticks

2 refers to the top of the plot for xticks and the right for yticks

Attributes

----------

tick1line : Line2D

tick2line : Line2D

gridline : Line2D

label1 : Text

label2 : Text

gridOn : bool

Determines whether to draw the tickline.

tick1On : bool

Determines whether to draw the first tickline.

tick2On : bool

Determines whether to draw the second tickline.

label1On : bool

Determines whether to draw the first tick label.

label2On : bool

Determines whether to draw the second tick label.

"""

def __init__(self, axes, loc, label,

size=None, # points

width=None,

color=None,

tickdir=None,

pad=None,

labelsize=None,

labelcolor=None,

zorder=None,

gridOn=None, # defaults to axes.grid depending on

# axes.grid.which

tick1On=True,

tick2On=True,

label1On=True,

label2On=False,

major=True,

labelrotation=0,

grid_color=None,

grid_linestyle=None,

grid_linewidth=None,

grid_alpha=None,

**kw # Other Line2D kwargs applied to gridlines.

):

"""

bbox is the Bound2D bounding box in display coords of the Axes

loc is the tick location in data coords

size is the tick size in points

"""

artist.Artist.__init__(self)

if gridOn is None:

if major and (rcParams['axes.grid.which'] in ('both', 'major')):

gridOn = rcParams['axes.grid']

elif (not major) and (rcParams['axes.grid.which']

in ('both', 'minor')):

gridOn = rcParams['axes.grid']

else:

gridOn = False

self.set_figure(axes.figure)

self.axes = axes

name = self.__name__.lower()

self._name = name

self._loc = loc

if size is None:

if major:

size = rcParams['%s.major.size' % name]

else:

size = rcParams['%s.minor.size' % name]

self._size = size

if width is None:

if major:

width = rcParams['%s.major.width' % name]

else:

width = rcParams['%s.minor.width' % name]

self._width = width

if color is None:

color = rcParams['%s.color' % name]

self._color = color

if pad is None:

if major:

pad = rcParams['%s.major.pad' % name]

else:

pad = rcParams['%s.minor.pad' % name]

self._base_pad = pad

if labelcolor is None:

labelcolor = rcParams['%s.color' % name]

self._labelcolor = labelcolor

if labelsize is None:

labelsize = rcParams['%s.labelsize' % name]

self._labelsize = labelsize

self._set_labelrotation(labelrotation)

if zorder is None:

if major:

zorder = mlines.Line2D.zorder + 0.01

else:

zorder = mlines.Line2D.zorder

self._zorder = zorder

self._grid_color = (rcParams['grid.color']

if grid_color is None else grid_color)

self._grid_linestyle = (rcParams['grid.linestyle']

if grid_linestyle is None else grid_linestyle)

self._grid_linewidth = (rcParams['grid.linewidth']

if grid_linewidth is None else grid_linewidth)

self._grid_alpha = (rcParams['grid.alpha']

if grid_alpha is None else grid_alpha)

self._grid_kw = {k[5:]: v for k, v in kw.items()}

self.apply_tickdir(tickdir)

self.tick1line = self._get_tick1line()

self.tick2line = self._get_tick2line()

self.gridline = self._get_gridline()

self.label1 = self._get_text1()

self.label = self.label1 # legacy name

self.label2 = self._get_text2()

self.gridOn = gridOn

self.tick1On = tick1On

self.tick2On = tick2On

self.label1On = label1On

self.label2On = label2On

self.update_position(loc)

def _set_labelrotation(self, labelrotation):

if isinstance(labelrotation, six.string_types):

mode = labelrotation

angle = 0

elif isinstance(labelrotation, (tuple, list)):

mode, angle = labelrotation

else:

mode = 'default'

angle = labelrotation

if mode not in ('auto', 'default'):

raise ValueError("Label rotation mode must be 'default' or "

"'auto', not '{}'.".format(mode))

self._labelrotation = (mode, angle)

<div class="viewcode-block" id="Tick.apply_tickdir"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.apply_tickdir.html#matplotlib.axis.Tick.apply_tickdir">[docs]</a> def apply_tickdir(self, tickdir):

"""

Calculate self._pad and self._tickmarkers

"""

pass</div>

<div class="viewcode-block" id="Tick.get_tickdir"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_tickdir.html#matplotlib.axis.Tick.get_tickdir">[docs]</a> def get_tickdir(self):

return self._tickdir</div>

<div class="viewcode-block" id="Tick.get_tick_padding"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_tick_padding.html#matplotlib.axis.Tick.get_tick_padding">[docs]</a> def get_tick_padding(self):

"""

Get the length of the tick outside of the axes.

"""

padding = {

'in': 0.0,

'inout': 0.5,

'out': 1.0

}

return self._size * padding[self._tickdir]</div>

<div class="viewcode-block" id="Tick.get_children"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_children.html#matplotlib.axis.Tick.get_children">[docs]</a> def get_children(self):

children = [self.tick1line, self.tick2line,

self.gridline, self.label1, self.label2]

return children</div>

<div class="viewcode-block" id="Tick.set_clip_path"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.set_clip_path.html#matplotlib.axis.Tick.set_clip_path">[docs]</a> def set_clip_path(self, clippath, transform=None):

artist.Artist.set_clip_path(self, clippath, transform)

self.gridline.set_clip_path(clippath, transform)

self.stale = True</div>

set_clip_path.__doc__ = artist.Artist.set_clip_path.__doc__

<div class="viewcode-block" id="Tick.get_pad_pixels"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_pad_pixels.html#matplotlib.axis.Tick.get_pad_pixels">[docs]</a> def get_pad_pixels(self):

return self.figure.dpi * self._base_pad / 72.0</div>

<div class="viewcode-block" id="Tick.contains"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.contains.html#matplotlib.axis.Tick.contains">[docs]</a> def contains(self, mouseevent):

"""

Test whether the mouse event occurred in the Tick marks.

This function always returns false. It is more useful to test if the

axis as a whole contains the mouse rather than the set of tick marks.

"""

if callable(self._contains):

return self._contains(self, mouseevent)

return False, {}</div>

<div class="viewcode-block" id="Tick.set_pad"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.set_pad.html#matplotlib.axis.Tick.set_pad">[docs]</a> def set_pad(self, val):

"""

Set the tick label pad in points

ACCEPTS: float

"""

self._apply_params(pad=val)

self.stale = True</div>

<div class="viewcode-block" id="Tick.get_pad"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_pad.html#matplotlib.axis.Tick.get_pad">[docs]</a> def get_pad(self):

'Get the value of the tick label pad in points'

return self._base_pad</div>

def _get_text1(self):

'Get the default Text 1 instance'

pass

def _get_text2(self):

'Get the default Text 2 instance'

pass

def _get_tick1line(self):

'Get the default line2D instance for tick1'

pass

def _get_tick2line(self):

'Get the default line2D instance for tick2'

pass

def _get_gridline(self):

'Get the default grid Line2d instance for this tick'

pass

<div class="viewcode-block" id="Tick.get_loc"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_loc.html#matplotlib.axis.Tick.get_loc">[docs]</a> def get_loc(self):

'Return the tick location (data coords) as a scalar'

return self._loc</div>

<div class="viewcode-block" id="Tick.draw"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.draw.html#matplotlib.axis.Tick.draw">[docs]</a> @allow_rasterization

def draw(self, renderer):

if not self.get_visible():

self.stale = False

return

renderer.open_group(self.__name__)

if self.gridOn:

self.gridline.draw(renderer)

if self.tick1On:

self.tick1line.draw(renderer)

if self.tick2On:

self.tick2line.draw(renderer)

if self.label1On:

self.label1.draw(renderer)

if self.label2On:

self.label2.draw(renderer)

renderer.close_group(self.__name__)

self.stale = False</div>

<div class="viewcode-block" id="Tick.set_label1"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.set_label1.html#matplotlib.axis.Tick.set_label1">[docs]</a> def set_label1(self, s):

"""

Set the text of ticklabel

ACCEPTS: str

"""

self.label1.set_text(s)

self.stale = True</div>

set_label = set_label1

<div class="viewcode-block" id="Tick.set_label2"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.set_label2.html#matplotlib.axis.Tick.set_label2">[docs]</a> def set_label2(self, s):

"""

Set the text of ticklabel2

ACCEPTS: str

"""

self.label2.set_text(s)

self.stale = True</div>

def _set_artist_props(self, a):

a.set_figure(self.figure)

<div class="viewcode-block" id="Tick.get_view_interval"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.get_view_interval.html#matplotlib.axis.Tick.get_view_interval">[docs]</a> def get_view_interval(self):

'return the view Interval instance for the axis this tick is ticking'

raise NotImplementedError('Derived must override')</div>

def _apply_params(self, **kw):

switchkw = ['gridOn', 'tick1On', 'tick2On', 'label1On', 'label2On']

switches = [k for k in kw if k in switchkw]

for k in switches:

setattr(self, k, kw.pop(k))

newmarker = [k for k in kw if k in ['size', 'width', 'pad', 'tickdir']]

if newmarker:

self._size = kw.pop('size', self._size)

# Width could be handled outside this block, but it is

# convenient to leave it here.

self._width = kw.pop('width', self._width)

self._base_pad = kw.pop('pad', self._base_pad)

# apply_tickdir uses _size and _base_pad to make _pad,

# and also makes _tickmarkers.

self.apply_tickdir(kw.pop('tickdir', self._tickdir))

self.tick1line.set_marker(self._tickmarkers[0])

self.tick2line.set_marker(self._tickmarkers[1])

for line in (self.tick1line, self.tick2line):

line.set_markersize(self._size)

line.set_markeredgewidth(self._width)

# _get_text1_transform uses _pad from apply_tickdir.

trans = self._get_text1_transform()[0]

self.label1.set_transform(trans)

trans = self._get_text2_transform()[0]

self.label2.set_transform(trans)

tick_kw = {k: v for k, v in six.iteritems(kw)

if k in ['color', 'zorder']}

if tick_kw:

self.tick1line.set(**tick_kw)

self.tick2line.set(**tick_kw)

for k, v in six.iteritems(tick_kw):

setattr(self, '_' + k, v)

if 'labelrotation' in kw:

self._set_labelrotation(kw.pop('labelrotation'))

self.label1.set(rotation=self._labelrotation[1])

self.label2.set(rotation=self._labelrotation[1])

label_list = [k for k in six.iteritems(kw)

if k[0] in ['labelsize', 'labelcolor']]

if label_list:

label_kw = {k[5:]: v for k, v in label_list}

# for labelsize the text objects covert str ('small')

# -> points. grab the integer from the `Text` object

# instead of saving the string representation

v = getattr(self.label1, 'get_' + k)()

setattr(self, '_label' + k, v)

grid_list = [k for k in six.iteritems(kw)

if k[0] in _gridline_param_names]

if grid_list:

grid_kw = {k[5:]: v for k, v in grid_list}

self.gridline.set(**grid_kw)

setattr(self, '_grid_' + k, v)

<div class="viewcode-block" id="Tick.update_position"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Tick.update_position.html#matplotlib.axis.Tick.update_position">[docs]</a> def update_position(self, loc):

'Set the location of tick in data coords with scalar *loc*'

raise NotImplementedError('Derived must override')</div>

def _get_text1_transform(self):

raise NotImplementedError('Derived must override')

def _get_text2_transform(self):

raise NotImplementedError('Derived must override')</div>

<div class="viewcode-block" id="XTick"><a class="viewcode-back" href="../../api/axis_api.html#matplotlib.axis.XTick">[docs]</a>class XTick(Tick):

"""

Contains all the Artists needed to make an x tick - the tick line,

the label text and the grid line

"""

__name__ = 'xtick'

def _get_text1_transform(self):

return self.axes.get_xaxis_text1_transform(self._pad)

def _get_text2_transform(self):

return self.axes.get_xaxis_text2_transform(self._pad)

<div class="viewcode-block" id="XTick.apply_tickdir"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.XTick.apply_tickdir.html#matplotlib.axis.XTick.apply_tickdir">[docs]</a> def apply_tickdir(self, tickdir):

if tickdir is None:

tickdir = rcParams['%s.direction' % self._name]

self._tickdir = tickdir

if self._tickdir == 'in':

self._tickmarkers = (mlines.TICKUP, mlines.TICKDOWN)

elif self._tickdir == 'inout':

self._tickmarkers = ('|', '|')

else:

self._tickmarkers = (mlines.TICKDOWN, mlines.TICKUP)

self._pad = self._base_pad + self.get_tick_padding()

self.stale = True</div>

def _get_text1(self):

'Get the default Text instance'

# the y loc is 3 points below the min of y axis

# get the affine as an a,b,c,d,tx,ty list

# x in data coords, y in axes coords

trans, vert, horiz = self._get_text1_transform()

t = mtext.Text(

x=0, y=0,

fontproperties=font_manager.FontProperties(size=self._labelsize),

color=self._labelcolor,

verticalalignment=vert,

horizontalalignment=horiz,

)

t.set_transform(trans)

self._set_artist_props(t)

return t

def _get_text2(self):

'Get the default Text 2 instance'

# x in data coords, y in axes coords

t = mtext.Text(

x=0, y=1,

color=self._labelcolor,

verticalalignment=vert,

horizontalalignment=horiz,

)

t.set_transform(trans)

self._set_artist_props(t)

return t

def _get_tick1line(self):

'Get the default line2D instance'

# x in data coords, y in axes coords

l = mlines.Line2D(xdata=(0,), ydata=(0,), color=self._color,

linestyle='None', marker=self._tickmarkers[0],

markersize=self._size,

markeredgewidth=self._width, zorder=self._zorder)

l.set_transform(self.axes.get_xaxis_transform(which='tick1'))

self._set_artist_props(l)

return l

def _get_tick2line(self):

'Get the default line2D instance'

# x in data coords, y in axes coords

color=self._color,

linestyle='None',

marker=self._tickmarkers[1],

markersize=self._size,

markeredgewidth=self._width,

zorder=self._zorder)

self._set_artist_props(l)

return l

def _get_gridline(self):

'Get the default line2D instance'

# x in data coords, y in axes coords

l = mlines.Line2D(xdata=(0.0, 0.0), ydata=(0, 1.0),

color=self._grid_color,

linestyle=self._grid_linestyle,

linewidth=self._grid_linewidth,

alpha=self._grid_alpha,

markersize=0,

**self._grid_kw)

l.get_path()._interpolation_steps = GRIDLINE_INTERPOLATION_STEPS

self._set_artist_props(l)

return l

<div class="viewcode-block" id="XTick.update_position"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.XTick.update_position.html#matplotlib.axis.XTick.update_position">[docs]</a> def update_position(self, loc):

'Set the location of tick in data coords with scalar *loc*'

if self.tick1On:

self.tick1line.set_xdata((loc,))

if self.tick2On:

self.tick2line.set_xdata((loc,))

if self.gridOn:

self.gridline.set_xdata((loc,))

if self.label1On:

self.label1.set_x(loc)

if self.label2On:

self.label2.set_x(loc)

self._loc = loc

self.stale = True</div>

<div class="viewcode-block" id="XTick.get_view_interval"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.XTick.get_view_interval.html#matplotlib.axis.XTick.get_view_interval">[docs]</a> def get_view_interval(self):

'return the Interval instance for this axis view limits'

return self.axes.viewLim.intervalx</div></div>

<div class="viewcode-block" id="YTick"><a class="viewcode-back" href="../../api/axis_api.html#matplotlib.axis.YTick">[docs]</a>class YTick(Tick):

"""

Contains all the Artists needed to make a Y tick - the tick line,

the label text and the grid line

"""

__name__ = 'ytick'

def _get_text1_transform(self):

return self.axes.get_yaxis_text1_transform(self._pad)

def _get_text2_transform(self):

return self.axes.get_yaxis_text2_transform(self._pad)

<div class="viewcode-block" id="YTick.apply_tickdir"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.YTick.apply_tickdir.html#matplotlib.axis.YTick.apply_tickdir">[docs]</a> def apply_tickdir(self, tickdir):

if tickdir is None:

self._tickdir = tickdir

if self._tickdir == 'in':

self._tickmarkers = (mlines.TICKRIGHT, mlines.TICKLEFT)

elif self._tickdir == 'inout':

self._tickmarkers = ('_', '_')

else:

self._tickmarkers = (mlines.TICKLEFT, mlines.TICKRIGHT)

self.stale = True</div>

# how far from the y axis line the right of the ticklabel are

def _get_text1(self):

'Get the default Text instance'

# x in axes coords, y in data coords

t = mtext.Text(

x=0, y=0,

color=self._labelcolor,

verticalalignment=vert,

horizontalalignment=horiz,

)

t.set_transform(trans)

self._set_artist_props(t)

return t

def _get_text2(self):

'Get the default Text instance'

# x in axes coords, y in data coords

t = mtext.Text(

x=1, y=0,

color=self._labelcolor,

verticalalignment=vert,

horizontalalignment=horiz,

)

t.set_transform(trans)

self._set_artist_props(t)

return t

def _get_tick1line(self):

'Get the default line2D instance'

# x in axes coords, y in data coords

l = mlines.Line2D((0,), (0,),

color=self._color,

linestyle='None',

markersize=self._size,

markeredgewidth=self._width,

zorder=self._zorder)

l.set_transform(self.axes.get_yaxis_transform(which='tick1'))

self._set_artist_props(l)

return l

def _get_tick2line(self):

'Get the default line2D instance'

# x in axes coords, y in data coords

l = mlines.Line2D((1,), (0,),

color=self._color,

linestyle='None',

markersize=self._size,

markeredgewidth=self._width,

zorder=self._zorder)

l.set_transform(self.axes.get_yaxis_transform(which='tick2'))

self._set_artist_props(l)

return l

def _get_gridline(self):

'Get the default line2D instance'

# x in axes coords, y in data coords

l = mlines.Line2D(xdata=(0, 1), ydata=(0, 0),

color=self._grid_color,

linestyle=self._grid_linestyle,

linewidth=self._grid_linewidth,

alpha=self._grid_alpha,

markersize=0,

**self._grid_kw)

l.set_transform(self.axes.get_yaxis_transform(which='grid'))

self._set_artist_props(l)

return l

<div class="viewcode-block" id="YTick.update_position"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.YTick.update_position.html#matplotlib.axis.YTick.update_position">[docs]</a> def update_position(self, loc):

'Set the location of tick in data coords with scalar *loc*'

if self.tick1On:

self.tick1line.set_ydata((loc,))

if self.tick2On:

self.tick2line.set_ydata((loc,))

if self.gridOn:

self.gridline.set_ydata((loc,))

if self.label1On:

self.label1.set_y(loc)

if self.label2On:

self.label2.set_y(loc)

self._loc = loc

self.stale = True</div>

<div class="viewcode-block" id="YTick.get_view_interval"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.YTick.get_view_interval.html#matplotlib.axis.YTick.get_view_interval">[docs]</a> def get_view_interval(self):

'return the Interval instance for this axis view limits'

<div class="viewcode-block" id="Ticker"><a class="viewcode-back" href="../../api/axis_api.html#matplotlib.axis.Ticker">[docs]</a>class Ticker(object):

locator = None

formatter = None</div>

class _LazyTickList(object):

"""

A descriptor for lazy instantiation of tick lists.

See comment above definition of the ``majorTicks`` and ``minorTicks``

attributes.

"""

def __init__(self, major):

self._major = major

def __get__(self, instance, cls):

if instance is None:

return self

else:

# instance._get_tick() can itself try to access the majorTicks

# attribute (e.g. in certain projection classes which override

# e.g. get_xaxis_text1_transform). In order to avoid infinite

# recursion, first set the majorTicks on the instance to an empty

# list, then create the tick and append it.

if self._major:

instance.majorTicks = []

tick = instance._get_tick(major=True)

instance.majorTicks.append(tick)

return instance.majorTicks

else:

instance.minorTicks = []

instance.minorTicks.append(tick)

return instance.minorTicks

<div class="viewcode-block" id="Axis"><a class="viewcode-back" href="../../api/axis_api.html#matplotlib.axis.Axis">[docs]</a>class Axis(artist.Artist):

"""

Public attributes

* :attr:`axes.transData` - transform data coords to display coords

* :attr:`axes.transAxes` - transform axis coords to display coords

* :attr:`labelpad` - number of points between the axis and its label

"""

OFFSETTEXTPAD = 3

def __str__(self):

return self.__class__.__name__ \

+ "(%f,%f)" % tuple(self.axes.transAxes.transform_point((0, 0)))

def __init__(self, axes, pickradius=15):

"""

Init the axis with the parent Axes instance

"""

self.isDefault_label = True

self.axes = axes

self.major = Ticker()

self.minor = Ticker()

self.callbacks = cbook.CallbackRegistry()

self._autolabelpos = True

self._smart_bounds = False

self.labelpad = rcParams['axes.labelpad']

self.offsetText = self._get_offset_text()

self.pickradius = pickradius

# Initialize here for testing; later add API

self._major_tick_kw = dict()

self._minor_tick_kw = dict()

self.cla()

self._set_scale('linear')

# During initialization, Axis objects often create ticks that are later

# unused; this turns out to be a very slow step. Instead, use a custom

# descriptor to make the tick lists lazy and instantiate them as needed.

majorTicks = _LazyTickList(major=True)

minorTicks = _LazyTickList(major=False)

<div class="viewcode-block" id="Axis.set_label_coords"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.set_label_coords.html#matplotlib.axis.Axis.set_label_coords">[docs]</a> def set_label_coords(self, x, y, transform=None):

"""

Set the coordinates of the label. By default, the x

coordinate of the y label is determined by the tick label

bounding boxes, but this can lead to poor alignment of

multiple ylabels if there are multiple axes. Ditto for the y

coordinate of the x label.

You can also specify the coordinate system of the label with

the transform. If None, the default coordinate system will be

the axes coordinate system (0,0) is (left,bottom), (0.5, 0.5)

is middle, etc

"""

self._autolabelpos = False

if transform is None:

transform = self.axes.transAxes

self.label.set_transform(transform)

self.label.set_position((x, y))

self.stale = True</div>

<div class="viewcode-block" id="Axis.get_transform"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.get_transform.html#matplotlib.axis.Axis.get_transform">[docs]</a> def get_transform(self):

return self._scale.get_transform()</div>

<div class="viewcode-block" id="Axis.get_scale"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.get_scale.html#matplotlib.axis.Axis.get_scale">[docs]</a> def get_scale(self):

return self._scale.name</div>

def _set_scale(self, value, **kwargs):

self._scale = mscale.scale_factory(value, self, **kwargs)

self._scale.set_default_locators_and_formatters(self)

self.isDefault_majloc = True

self.isDefault_minloc = True

self.isDefault_majfmt = True

self.isDefault_minfmt = True

<div class="viewcode-block" id="Axis.limit_range_for_scale"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.limit_range_for_scale.html#matplotlib.axis.Axis.limit_range_for_scale">[docs]</a> def limit_range_for_scale(self, vmin, vmax):

return self._scale.limit_range_for_scale(vmin, vmax, self.get_minpos())</div>

@property

@cbook.deprecated("2.2.0")

def unit_data(self):

return self.units

@unit_data.setter

@cbook.deprecated("2.2.0")

def unit_data(self, unit_data):

self.set_units(unit_data)

<div class="viewcode-block" id="Axis.get_children"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.get_children.html#matplotlib.axis.Axis.get_children">[docs]</a> def get_children(self):

children = [self.label, self.offsetText]

majorticks = self.get_major_ticks()

minorticks = self.get_minor_ticks()

children.extend(majorticks)

children.extend(minorticks)

return children</div>

<div class="viewcode-block" id="Axis.cla"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.cla.html#matplotlib.axis.Axis.cla">[docs]</a> def cla(self):

'clear the current axis'

self.label.set_text('') # self.set_label_text would change isDefault_

self._set_scale('linear')

# Clear the callback registry for this axis, or it may "leak"

# whether the grids are on

self._gridOnMajor = (rcParams['axes.grid'] and

rcParams['axes.grid.which'] in ('both', 'major'))

self._gridOnMinor = (rcParams['axes.grid'] and

self.reset_ticks()

self.converter = None

self.units = None

self.set_units(None)

self.stale = True</div>

<div class="viewcode-block" id="Axis.reset_ticks"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.reset_ticks.html#matplotlib.axis.Axis.reset_ticks">[docs]</a> def reset_ticks(self):

"""

Re-initialize the major and minor Tick lists.

Each list starts with a single fresh Tick.

"""

# Restore the lazy tick lists.

try:

del self.majorTicks

except AttributeError:

pass

try:

del self.minorTicks

except AttributeError:

pass

try:

self.set_clip_path(self.axes.patch)

except AttributeError:

pass</div>

<div class="viewcode-block" id="Axis.set_tick_params"><a class="viewcode-back" href="../../api/_as_gen/matplotlib.axis.Axis.set_tick_params.html#matplotlib.axis.Axis.set_tick_params">[docs]</a> def set_tick_params(self, which='major', reset=False, **kw):

"""

Set appearance parameters for ticks, ticklabels, and gridlines.

For documentation of keyword arguments, see

:meth:`matplotlib.axes.Axes.tick_params`.

"""

dicts = []

if which == 'major' or which == 'both':

dicts.append(self._major_tick_kw)

if which == 'minor' or which == 'both':

kwtrans = self._translate_tick_kw(kw, to_init_kw=True)

for d in dicts:

if reset:

d.clear()

d.update(kwtrans)

if reset:

self.reset_ticks()

else:

for tick in self.majorTicks:

tick._apply_params(**self._major_tick_kw)

for tick in self.minorTicks:

if 'labelcolor' in kwtrans:

self.offsetText.set_color(kwtrans['labelcolor'])

self.stale = True</div>

@staticmethod

def _translate_tick_kw(kw, to_init_kw=True):

# The following lists may be moved to a more

# accessible location.

kwkeys0 = ['size', 'width', 'color', 'tickdir', 'pad',

'labelsize', 'labelcolor', 'zorder', 'gridOn',

'tick1On', 'tick2On', 'label1On', 'label2On']

kwkeys1 = ['length', 'direction', 'left', 'bottom', 'right', 'top',

'labelleft', 'labelbottom', 'labelright', 'labeltop',

'labelrotation']

kwkeys2 = _gridline_param_names

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