matplotlib.axes.Axes.arrow

Axes.arrow(self, x, y, dx, dy, **kwargs) [source]

Add an arrow to the axes.

This draws an arrow from (x, y) to (x+dx, y+dy).

Parameters:	x, y : float The x and y coordinates of the arrow base. dx, dy : float The length of the arrow along x and y direction.
Returns:	arrow : FancyArrow The created FancyArrow object.
Other Parameters:	**kwargs Optional kwargs (inherited from FancyArrow patch) control the arrow construction and properties: Constructor arguments width: float (default: 0.001) width of full arrow tail length_includes_head: bool (default: False) True if head is to be counted in calculating the length. head_width: float or None (default: 3*width) total width of the full arrow head head_length: float or None (default: 1.5 * head_width) length of arrow head shape: ['full', 'left', 'right'] (default: 'full') draw the left-half, right-half, or full arrow overhang: float (default: 0) fraction that the arrow is swept back (0 overhang means triangular shape). Can be negative or greater than one. head_starts_at_zero: bool (default: False) if True, the head starts being drawn at coordinate 0 instead of ending at coordinate 0. Other valid kwargs (inherited from :class:`Patch`) are: Property Description 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 float or None animated bool antialiased or aa unknown capstyle {'butt', 'round', 'projecting'} clip_box Bbox clip_on bool clip_path [(Path, Transform) | Patch | None] color color contains callable edgecolor or ec color or None or 'auto' facecolor or fc color or None figure Figure fill bool gid str hatch {'/', '\', '|', '-', '+', 'x', 'o', 'O', '.', '*'} in_layout bool joinstyle {'miter', 'round', 'bevel'} label object linestyle or ls {'-', '--', '-.', ':', '', (offset, on-off-seq), ...} linewidth or lw float or None path_effects AbstractPathEffect picker None or bool or float or callable rasterized bool or None sketch_params (scale: float, length: float, randomness: float) snap bool or None transform Transform url str visible bool zorder float

Notes

The resulting arrow is affected by the axes aspect ratio and limits. This may produce an arrow whose head is not square with its stem. To create an arrow whose head is square with its stem, use annotate() for example:

>>> ax.annotate("", xy=(0.5, 0.5), xytext=(0, 0),
...             arrowprops=dict(arrowstyle="->"))