matplotlib.axis

Classes for the ticks and x and y axis.

Axis objects

class matplotlib.axis.Axis(axes, pickradius=15)[source]

Base class for XAxis and YAxis.

Attributes:
isDefault_labelbool
axesmatplotlib.axes.Axes

The Axes instance the artist resides in, or None.

majormatplotlib.axis.Ticker

Determines the major tick positions and their label format.

minormatplotlib.axis.Ticker

Determines the minor tick positions and their label format.

callbacksmatplotlib.cbook.CallbackRegistry
labelText

The axis label.

labelpadfloat

The distance between the axis label and the tick labels. Defaults to rcParams["axes.labelpad"] (default: 4.0) = 4.

offsetTextText

A Text object containing the data offset of the ticks (if any).

pickradiusfloat

The acceptance radius for containment tests. See also Axis.contains.

majorTickslist of Tick

The major ticks.

minorTickslist of Tick

The minor ticks.

Parameters:
axesmatplotlib.axes.Axes

The Axes to which the created Axis belongs.

pickradiusfloat

The acceptance radius for containment tests. See also Axis.contains.

class matplotlib.axis.XAxis(*args, **kwargs)[source]
Parameters:
axesmatplotlib.axes.Axes

The Axes to which the created Axis belongs.

pickradiusfloat

The acceptance radius for containment tests. See also Axis.contains.

class matplotlib.axis.YAxis(*args, **kwargs)[source]
Parameters:
axesmatplotlib.axes.Axes

The Axes to which the created Axis belongs.

pickradiusfloat

The acceptance radius for containment tests. See also Axis.contains.

class matplotlib.axis.Ticker[source]

A container for the objects defining tick position and format.

Attributes:
locatormatplotlib.ticker.Locator subclass

Determines the positions of the ticks.

formattermatplotlib.ticker.Formatter subclass

Determines the format of the tick labels.

Axis.cla Clear this axis.
Axis.get_scale Return this Axis' scale (as a str).

Formatters and Locators

Axis.get_major_formatter Get the formatter of the major ticker.
Axis.get_major_locator Get the locator of the major ticker.
Axis.get_minor_formatter Get the formatter of the minor ticker.
Axis.get_minor_locator Get the locator of the minor ticker.
Axis.set_major_formatter Set the formatter of the major ticker.
Axis.set_major_locator Set the locator of the major ticker.
Axis.set_minor_formatter Set the formatter of the minor ticker.
Axis.set_minor_locator Set the locator of the minor ticker.
Axis.remove_overlapping_locs If minor ticker locations that overlap with major ticker locations should be trimmed.
Axis.get_remove_overlapping_locs
Axis.set_remove_overlapping_locs

Axis Label

Axis.set_label_coords Set the coordinates of the label.
Axis.set_label_position Set the label position (top or bottom)
Axis.set_label_text Set the text value of the axis label.
Axis.get_label_position Return the label position (top or bottom)
Axis.get_label_text Get the text of the label.

Ticks, tick labels and Offset text

Axis.get_major_ticks Return the list of major Ticks.
Axis.get_majorticklabels Return this Axis' major tick labels, as a list of Text.
Axis.get_majorticklines Return this Axis' major tick lines as a list of Line2Ds.
Axis.get_majorticklocs Return this Axis' major tick locations in data coordinates.
Axis.get_minor_ticks Return the list of minor Ticks.
Axis.get_minorticklabels Return this Axis' minor tick labels, as a list of Text.
Axis.get_minorticklines Return this Axis' minor tick lines as a list of Line2Ds.
Axis.get_minorticklocs Return this Axis' minor tick locations in data coordinates.
Axis.get_offset_text Return the axis offsetText as a Text instance.
Axis.get_tick_padding
Axis.get_ticklabels Get this Axis' tick labels.
Axis.get_ticklines Return this Axis' tick lines as a list of Line2Ds.
Axis.get_ticklocs Return this Axis' tick locations in data coordinates.
Axis.get_gridlines Return this Axis' grid lines as a list of Line2Ds.
Axis.grid Configure the grid lines.
Axis.set_tick_params Set appearance parameters for ticks, ticklabels, and gridlines.
Axis.axis_date Set up axis ticks and labels to treat data along this Axis as dates.

Data and view intervals

Axis.get_data_interval Return the Interval instance for this axis data limits.
Axis.get_view_interval Return the view limits (min, max) of this axis.
Axis.set_data_interval Set the axis data limits.
Axis.set_view_interval Set the axis view limits.

Rendering helpers

Axis.get_minpos
Axis.get_tick_space Return the estimated number of ticks that can fit on the axis.
Axis.get_ticklabel_extents Get the extents of the tick labels on either side of the axes.
Axis.get_tightbbox Return a bounding box that encloses the axis.

Interactive

Axis.contains Test whether the artist contains the mouse event.
Axis.get_pickradius Return the depth of the axis used by the picker.
Axis.set_pickradius Set the depth of the axis used by the picker.

Units

Axis.convert_units
Axis.set_units Set the units for axis.
Axis.get_units Return the units for axis.
Axis.update_units Introspect data for units converter and update the axis.converter instance if necessary.

Incremental navigation

Axis.pan [Deprecated] Pan by numsteps (can be positive or negative).
Axis.zoom [Deprecated] Zoom in/out on axis; if direction is >0 zoom in, else zoom out.

XAxis Specific

XAxis.axis_name Read-only name identifying the axis.
XAxis.get_text_heights Return how much space should be reserved for text above and below the axes, as a pair of floats.
XAxis.get_ticks_position Return the ticks position ("top", "bottom", "default", or "unknown").
XAxis.set_ticks_position Set the ticks position.
XAxis.tick_bottom Move ticks and ticklabels (if present) to the bottom of the axes.
XAxis.tick_top Move ticks and ticklabels (if present) to the top of the axes.

YAxis Specific

YAxis.axis_name Read-only name identifying the axis.
YAxis.get_text_widths
YAxis.get_ticks_position Return the ticks position ("left", "right", "default", or "unknown").
YAxis.set_offset_position
Parameters:
YAxis.set_ticks_position Set the ticks position.
YAxis.tick_left Move ticks and ticklabels (if present) to the left of the axes.
YAxis.tick_right Move ticks and ticklabels (if present) to the right of the axes.

Other

Axis.OFFSETTEXTPAD
Axis.axes The Axes instance the artist resides in, or None.
Axis.limit_range_for_scale
Axis.reset_ticks Re-initialize the major and minor Tick lists.
Axis.set_default_intervals Set the default limits for the axis data and view interval if they have not been not mutated yet.
Axis.get_smart_bounds [Deprecated] Return whether the axis has smart bounds.
Axis.set_smart_bounds [Deprecated] Set the axis to have smart bounds.

Discouraged

These methods should be used together with care, calling set_ticks to specify the desired tick locations before calling set_ticklabels to specify a matching series of labels. Calling set_ticks makes a FixedLocator; it's list of locations is then used by set_ticklabels to make an appropriate FuncFormatter.

Axis.set_ticks Set this Axis' tick locations.
Axis.set_ticklabels Set the text values of the tick labels.

Tick objects

class matplotlib.axis.Tick(axes, loc, label=<deprecated parameter>, size=None, width=None, color=None, tickdir=None, pad=None, labelsize=None, labelcolor=None, zorder=None, gridOn=None, 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)[source]

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

Ticks mark a position on an Axis. They contain two lines as markers and two labels; one each for the bottom and top positions (in case of an XAxis) or for the left and right positions (in case of a YAxis).

Attributes:
tick1lineLine2D

The left/bottom tick marker.

tick2lineLine2D

The right/top tick marker.

gridlineLine2D

The grid line associated with the label position.

label1Text

The left/bottom tick label.

label2Text

The right/top tick label.

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

class matplotlib.axis.XTick(*args, **kwargs)[source]

Contains all the Artists needed to make an x tick - the tick line, the label text and the grid line

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

class matplotlib.axis.YTick(*args, **kwargs)[source]

Contains all the Artists needed to make a Y tick - the tick line, the label text and the grid line

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

Tick.apply_tickdir Calculate self._pad and self._tickmarkers.
Tick.get_loc Return the tick location (data coords) as a scalar.
Tick.get_pad Get the value of the tick label pad in points.
Tick.get_pad_pixels
Tick.get_tick_padding Get the length of the tick outside of the axes.
Tick.get_tickdir
Tick.get_view_interval Return the view limits (min, max) of the axis the tick belongs to.
Tick.set_label1 Set the label1 text.
Tick.set_label2 Set the label2 text.
Tick.set_pad Set the tick label pad in points
Tick.update_position Set the location of tick in data coords with scalar loc.