Classes for including text in a figure.
Bases: matplotlib.text.Text
, matplotlib.text._AnnotationBase
An Annotation
is a Text
that can refer to a specific position xy. Optionally an arrow pointing from the text to xy can be drawn.
The annotated position.
The coordinate system for xy.
A FancyArrowPatch
to point from xytext to xy.
Annotate the point xy with text text.
In the simplest form, the text is placed at xy.
Optionally, the text can be displayed in another position xytext. An arrow pointing from the text to the annotated point xy can then be added by defining arrowprops.
The text of the annotation.
The point (x, y) to annotate. The coordinate system is determined by xycoords.
The position (x, y) to place the text at. The coordinate system is determined by textcoords.
Artist
or Transform
or callable or (float, float), default: 'data'
The coordinate system that xy is given in. The following types of values are supported:
One of the following strings:
Value | Description |
---|---|
'figure points' | Points from the lower left of the figure |
'figure pixels' | Pixels from the lower left of the figure |
'figure fraction' | Fraction of figure from lower left |
'subfigure points' | Points from the lower left of the subfigure |
'subfigure pixels' | Pixels from the lower left of the subfigure |
'subfigure fraction' | Fraction of subfigure from lower left |
'axes points' | Points from lower left corner of axes |
'axes pixels' | Pixels from lower left corner of axes |
'axes fraction' | Fraction of axes from lower left |
'data' | Use the coordinate system of the object being annotated (default) |
'polar' | (theta, r) if not native 'data' coordinates |
Note that 'subfigure pixels' and 'figure pixels' are the same for the parent figure, so users who want code that is usable in a subfigure can use 'subfigure pixels'.
Artist
: xy is interpreted as a fraction of the artist's Bbox
. E.g. (0, 0) would be the lower left corner of the bounding box and (0.5, 1) would be the center top of the bounding box.Transform
to transform xy to screen coordinates.A function with one of the following signatures:
def transform(renderer) -> Bbox def transform(renderer) -> Transform
where renderer is a RendererBase
subclass.
The result of the function is interpreted like the Artist
and Transform
cases above.
See Advanced Annotations for more details.
Artist
or Transform
or callable or (float, float), default: value of xycoords
The coordinate system that xytext is given in.
All xycoords values are valid as well as the following strings:
Value | Description |
---|---|
'offset points' | Offset (in points) from the xy value |
'offset pixels' | Offset (in pixels) from the xy value |
The properties used to draw a FancyArrowPatch
arrow between the positions xy and xytext. Defaults to None, i.e. no arrow is drawn.
For historical reasons there are two different ways to specify arrows, "simple" and "fancy":
Simple arrow:
If arrowprops does not contain the key 'arrowstyle' the allowed keys are:
Key | Description |
---|---|
width | The width of the arrow in points |
headwidth | The width of the base of the arrow head in points |
headlength | The length of the arrow head in points |
shrink | Fraction of total length to shrink from both ends |
? | Any key to |
The arrow is attached to the edge of the text box, the exact position (corners or centers) depending on where it's pointing to.
Fancy arrow:
This is used if 'arrowstyle' is provided in the arrowprops.
Valid keys are the following FancyArrowPatch
parameters:
Key | Description |
---|---|
arrowstyle | the arrow style |
connectionstyle | the connection style |
relpos | see below; default is (0.5, 0.5) |
patchA | default is bounding box of the text |
patchB | default is None |
shrinkA | default is 2 points |
shrinkB | default is 2 points |
mutation_scale | default is text size (in points) |
mutation_aspect | default is 1. |
? | any key for |
The exact starting point position of the arrow is defined by relpos. It's a tuple of relative coordinates of the text box, where (0, 0) is the lower left corner and (1, 1) is the upper right corner. Values <0 and >1 are supported and specify points outside the text box. By default (0.5, 0.5) the starting point is centered in the text box.
Whether to draw the annotation when the annotation point xy is outside the axes area.
Additional kwargs are passed to Text
.
See also
The coordinate system to use for Annotation.xyann
.
Return whether the mouse event occurred inside the axis-aligned bounding-box of the text.
Draw the Artist (and its children) using the given renderer.
This has no effect if the artist is not visible (Artist.get_visible
returns False).
RendererBase
subclass.
This method is overridden in the Artist subclasses.
Return the coordinate system to use for Annotation.xyann
.
See also xycoords in Annotation
.
Like Artist.get_window_extent
, but includes any clipping.
RendererBase
subclass
renderer that will be used to draw the figures (i.e. fig.canvas.get_renderer()
)
Bbox
The enclosing bounding box (in figure pixel coordinates).
Return the Bbox
bounding the text, in display units.
In addition to being used internally, this is useful for specifying clickable regions in a png file on a web page.
A renderer is needed to compute the bounding box. If the artist has already been drawn, the renderer is cached; thus, it is only necessary to pass this argument when calling get_window_extent
before the first draw
. In practice, it is usually easier to trigger a draw first (e.g. by saving the figure).
The dpi value for computing the bbox, defaults to self.figure.dpi
(not the renderer dpi); should be set e.g. if to match regions with a figure saved with a custom dpi value.
Set multiple properties at once.
Supported properties are
Property | Description |
---|---|
a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array | |
scalar or None | |
bool | |
unknown | |
| bool or None |
color | |
dict with properties for | |
bool | |
Patch or (Path, Transform) or None | |
| color |
unknown | |
| {FONTNAME, 'serif', 'sans-serif', 'cursive', 'fantasy', 'monospace'} |
| |
| float or {'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'} |
| {a numeric value in range 0-1000, 'ultra-condensed', 'extra-condensed', 'condensed', 'semi-condensed', 'normal', 'semi-expanded', 'expanded', 'extra-expanded', 'ultra-expanded'} |
| {'normal', 'italic', 'oblique'} |
| {'normal', 'small-caps'} |
| {a numeric value in range 0-1000, 'ultralight', 'light', 'normal', 'regular', 'book', 'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold', 'heavy', 'extra bold', 'black'} |
str | |
| {'center', 'right', 'left'} |
bool | |
object | |
float (multiple of font size) | |
str | |
| {'left', 'right', 'center'} |
bool | |
None or bool or float or callable | |
(float, float) | |
bool | |
float or {'vertical', 'horizontal'} | |
{None, 'default', 'anchor'} | |
(scale: float, length: float, randomness: float) | |
bool or None | |
object | |
bool | |
str | |
bool or None | |
| {'center', 'top', 'bottom', 'baseline', 'center_baseline'} |
bool | |
bool | |
float | |
float | |
float |
Set the coordinate system to use for Annotation.xyann
.
See also xycoords in Annotation
.
Update the pixel positions of the annotation text and the arrow patch.
The text position.
See also xytext in Annotation
.
Bases: object
Callable helper class for working with Annotation
.
Artist
or BboxBase
or Transform
The object to compute the offset from.
If artist is an Artist
or BboxBase
, this values is the location to of the offset origin in fractions of the artist bounding box.
If artist is a transform, the offset origin is the transform applied to this value.
The screen units to use (pixels or points) for the offset input.
Return the unit for input to the transform used by __call__
.
Set the unit for input to the transform used by __call__
.
Bases: matplotlib.artist.Artist
Handle storing and drawing of text in window or data coordinates.
Create a Text
instance at x, y with string text.
Valid keyword arguments are:
Property | Description |
---|---|
a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array | |
scalar or None | |
bool | |
color | |
dict with properties for | |
unknown | |
unknown | |
unknown | |
| color |
| {FONTNAME, 'serif', 'sans-serif', 'cursive', 'fantasy', 'monospace'} |
| |
| float or {'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'} |
| {a numeric value in range 0-1000, 'ultra-condensed', 'extra-condensed', 'condensed', 'semi-condensed', 'normal', 'semi-expanded', 'expanded', 'extra-expanded', 'ultra-expanded'} |
| {'normal', 'italic', 'oblique'} |
| {'normal', 'small-caps'} |
| {a numeric value in range 0-1000, 'ultralight', 'light', 'normal', 'regular', 'book', 'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold', 'heavy', 'extra bold', 'black'} |
str | |
| {'center', 'right', 'left'} |
bool | |
object | |
float (multiple of font size) | |
str | |
| {'left', 'right', 'center'} |
bool | |
None or bool or float or callable | |
(float, float) | |
bool | |
float or {'vertical', 'horizontal'} | |
{None, 'default', 'anchor'} | |
(scale: float, length: float, randomness: float) | |
bool or None | |
object | |
bool | |
str | |
bool or None | |
| {'center', 'top', 'bottom', 'baseline', 'center_baseline'} |
bool | |
bool | |
float | |
float | |
float |
Return whether the mouse event occurred inside the axis-aligned bounding-box of the text.
Draw the Artist (and its children) using the given renderer.
This has no effect if the artist is not visible (Artist.get_visible
returns False).
RendererBase
subclass.
This method is overridden in the Artist subclasses.
Return the bbox Patch, or None if the patches.FancyBboxPatch
is not made.
Return the color of the text.
Alias for get_fontfamily
.
Alias for get_fontproperties
.
Alias for get_fontproperties
.
Return the list of font families used for font lookup.
Return the font name as a string.
See also
Return the font_manager.FontProperties
.
Return the font size as an integer.
Return the font style as a string.
Return the font variant as a string.
Return the font weight as a string or a number.
Alias for get_horizontalalignment
.
Return the horizontal alignment as a string. Will be one of 'left', 'center' or 'right'.
Return the font family name for math text rendered by Matplotlib.
The default value is rcParams["mathtext.fontset"]
(default: 'dejavusans'
).
See also
Alias for get_fontname
.
Return the (x, y) position of the text.
[Deprecated] Return a hashable tuple of properties.
Not intended to be human readable, but useful for backends who want to cache derived information about text (e.g., layouts) and need to know if the text has changed.
Deprecated since version 3.5.
Return the text angle in degrees between 0 and 360.
Return the text rotation mode.
Alias for get_fontsize
.
Return the font stretch as a string or a number.
Alias for get_fontstyle
.
Return the text string.
Return whether rotations of the transform affect the text direction.
Return the (x, y) unitless position of the text.
Alias for get_verticalalignment
.
Alias for get_fontvariant
.
Return the vertical alignment as a string. Will be one of 'top', 'center', 'bottom', 'baseline' or 'center_baseline'.
Alias for get_fontweight
.
Return the Bbox
bounding the text, in display units.
In addition to being used internally, this is useful for specifying clickable regions in a png file on a web page.
A renderer is needed to compute the bounding box. If the artist has already been drawn, the renderer is cached; thus, it is only necessary to pass this argument when calling get_window_extent
before the first draw
. In practice, it is usually easier to trigger a draw first (e.g. by saving the figure).
The dpi value for computing the bbox, defaults to self.figure.dpi
(not the renderer dpi); should be set e.g. if to match regions with a figure saved with a custom dpi value.
Return whether the text can be wrapped.
Set multiple properties at once.
Supported properties are
Property | Description |
---|---|
a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array | |
scalar or None | |
bool | |
color | |
dict with properties for | |
unknown | |
unknown | |
unknown | |
color | |
{FONTNAME, 'serif', 'sans-serif', 'cursive', 'fantasy', 'monospace'} | |
float or {'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'} | |
{a numeric value in range 0-1000, 'ultra-condensed', 'extra-condensed', 'condensed', 'semi-condensed', 'normal', 'semi-expanded', 'expanded', 'extra-expanded', 'ultra-expanded'} | |
{'normal', 'italic', 'oblique'} | |
{'normal', 'small-caps'} | |
{a numeric value in range 0-1000, 'ultralight', 'light', 'normal', 'regular', 'book', 'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold', 'heavy', 'extra bold', 'black'} | |
str | |
{'center', 'right', 'left'} | |
bool | |
object | |
float (multiple of font size) | |
str | |
{'left', 'right', 'center'} | |
bool | |
None or bool or float or callable | |
(float, float) | |
bool | |
float or {'vertical', 'horizontal'} | |
{None, 'default', 'anchor'} | |
(scale: float, length: float, randomness: float) | |
bool or None | |
object | |
bool | |
str | |
bool or None | |
{'center', 'top', 'bottom', 'baseline', 'center_baseline'} | |
bool | |
bool | |
float | |
float | |
float |
Set the background color of the text by updating the bbox.
See also
set_bbox
To change the position of the bounding box
Draw a bounding box around self.
patches.FancyBboxPatch
The default boxstyle is 'square'. The mutation scale of the patches.FancyBboxPatch
is set to the fontsize.
t.set_bbox(dict(facecolor='red', alpha=0.5))
Set whether the artist uses clipping.
When False artists will be visible outside of the axes which can lead to unexpected results.
Set the artist's clip path.
Patch
or Path
or TransformedPath
or None
The clip path. If given a Path
, transform must be provided as well. If None, a previously set clip path is removed.
Transform
, optional
Only used if path is a Path
, in which case the given Path
is converted to a TransformedPath
using transform.
For efficiency, if path is a Rectangle
this method will set the clipping box to the corresponding rectangle and set the clipping path to None
.
For technical reasons (support of set
), a tuple (path, transform) is also accepted as a single positional parameter.
Set the foreground color of the text
Alias for set_fontfamily
.
Alias for set_fontproperties
.
Alias for set_fontproperties
.
Set the font family. May be either a single string, or a list of strings in decreasing priority. Each string may be either a real font name or a generic font class name. If the latter, the specific font names will be looked up in the corresponding rcParams.
If a Text
instance is constructed with fontfamily=None
, then the font is set to rcParams["font.family"]
(default: ['sans-serif']
), and the same is done when set_fontfamily()
is called on an existing Text
instance.
Alias for set_family
.
One-way alias only: the getter differs.
Set the font properties that control the text.
font_manager.FontProperties
or str
or pathlib.Path
If a str
, it is interpreted as a fontconfig pattern parsed by FontProperties
. If a pathlib.Path
, it is interpreted as the absolute path to a font file.
Set the font size.
If float, the fontsize in points. The string values denote sizes relative to the default font size.
See also
Set the font stretch (horizontal condensation or expansion).
Set the font style.
Set the font variant.
Set the font weight.
Alias for set_horizontalalignment
.
Set the horizontal alignment to one of
Set the line spacing as a multiple of the font size.
The default line spacing is 1.2.
Alias for set_multialignment
.
Set the font family for math text rendered by Matplotlib.
This does only affect Matplotlib's own math renderer. It has no effect when rendering with TeX (usetex=True
).
The name of the font family.
Available font families are defined in the matplotlibrc.template file.
See also
Set the text alignment for multiline texts.
The layout of the bounding box of all the lines is determined by the horizontalalignment and verticalalignment properties. This property controls the alignment of the text lines within that box.
Alias for set_fontname
.
Override switch to disable any mathtext parsing for this Text
.
If False, this Text
will never use mathtext. If True, mathtext will be used if there is an even number of unescaped dollar signs.
Set the (x, y) position of the text.
Set the rotation of the text.
The rotation angle in degrees in mathematically positive direction (counterclockwise). 'horizontal' equals 0, 'vertical' equals 90.
Set text rotation mode.
If None
or "default"
, the text will be first rotated, then aligned according to their horizontal and vertical alignments. If "anchor"
, then alignment occurs before rotation.
Alias for set_fontsize
.
Alias for set_fontstretch
.
Alias for set_fontstyle
.
Set the text string s.
It may contain newlines (\n
) or math in LaTeX syntax.
Any object gets converted to its str
representation, except for None
which is converted to an empty string.
Whether rotations of the transform affect the text direction.
Whether to render using TeX, None
means to use rcParams["text.usetex"]
(default: False
).
Alias for set_verticalalignment
.
Alias for set_fontvariant
.
Set the vertical alignment.
Alias for set_fontweight
.
Set whether the text can be wrapped.
Wrapping does not work together with savefig(..., bbox_inches='tight')
(which is also used internally by %matplotlib inline
in IPython/Jupyter). The 'tight' setting rescales the canvas to accommodate all content and happens before wrapping.
Set the x position of the text.
Set the y position of the text.
Update this artist's properties from the dict props.
Update the location and the size of the bbox.
This method should be used when the position and size of the bbox needs to be updated before actually drawing the bbox.
Copy properties from other to self.
Return rotation normalized to an angle between 0 and 360 degrees.
Rotation angle in degrees. None and 'horizontal' equal 0, 'vertical' equals 90.
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Licensed under the Matplotlib License Agreement.
https://matplotlib.org/3.5.1/api/text_api.html