axline(self, xy1, xy2=None, *, slope=None, **kwargs)
The line can be defined either by two points xy1 and xy2, or by one point xy1 and a slope.
This draws a straight line "on the screen", regardless of the x and y scales, and is thus also suitable for drawing exponential decays in semilog plots, power laws in loglog plots, etc. However, slope should only be used with linear scales; It has no clear meaning for all other scales, and thus the behavior is undefined. Please specify the line using the points xy1, xy2 for non-linear scales.
The transform keyword argument only applies to the points xy1, xy2. The slope (if given) is always in data coordinates. This can be used e.g. with ax.transAxes
for drawing grid lines with a fixed slope.
Valid kwargs are .Line2D
properties
Properties: agg_filter: a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array alpha: scalar or None animated: bool antialiased or aa: bool clip_box: .Bbox
clip_on: bool clip_path: Patch or (Path, Transform) or None color or c: color dash_capstyle: .CapStyle
or {'butt', 'projecting', 'round'} dash_joinstyle: .JoinStyle
or {'miter', 'round', 'bevel'} dashes: sequence of floats (on/off ink in points) or (None, None) data: (2, N) array or two 1D arrays drawstyle or ds: {'default', 'steps', 'steps-pre', 'steps-mid', 'steps-post'}, default: 'default' figure: .Figure
fillstyle: {'full', 'left', 'right', 'bottom', 'top', 'none'} gid: str in_layout: bool label: object linestyle or ls: {'-', '--', '-.', ':', '', (offset, on-off-seq), ...} linewidth or lw: float marker: marker style string, ~.path.Path
or ~.markers.MarkerStyle
markeredgecolor or mec: color markeredgewidth or mew: float markerfacecolor or mfc: color markerfacecoloralt or mfcalt: color markersize or ms: float markevery: None or int or (int, int) or slice or list[int] or float or (float, float) or list[bool] path_effects: .AbstractPathEffect
picker: float or callable[[Artist, Event], tuple[bool, dict]] pickradius: float rasterized: bool sketch_params: (scale: float, length: float, randomness: float) snap: bool or None solid_capstyle: .CapStyle
or {'butt', 'projecting', 'round'} solid_joinstyle: .JoinStyle
or {'miter', 'round', 'bevel'} transform: unknown url: str visible: bool xdata: 1D array ydata: 1D array zorder: float
Points for the line to pass through. Either xy2 or slope has to be given.
The slope of the line. Either xy2 or slope has to be given.
Add an infinitely long straight line.
axhline
for horizontal lines
axvline
for vertical lines
See :>>> axline((0, 0), (1, 1), linewidth=4, color='r')
The following pages refer to to this document either explicitly or contain code examples using this.
matplotlib.axes._axes.Axes.axhline
matplotlib.lines._AxLine
matplotlib.axes._axes.Axes.axvline
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