altair.TitleConfig

class altair.TitleConfig(align=Undefined, anchor=Undefined, angle=Undefined, baseline=Undefined, color=Undefined, dx=Undefined, dy=Undefined, font=Undefined, fontSize=Undefined, fontStyle=Undefined, fontWeight=Undefined, frame=Undefined, limit=Undefined, lineHeight=Undefined, offset=Undefined, orient=Undefined, subtitleColor=Undefined, subtitleFont=Undefined, subtitleFontSize=Undefined, subtitleFontStyle=Undefined, subtitleFontWeight=Undefined, subtitleLineHeight=Undefined, subtitlePadding=Undefined, **kwds)

TitleConfig schema wrapper

Mapping(required=[])

Attributes:
align : Align

Horizontal text alignment for title text. One of "left", "center", or "right".

anchor : TitleAnchor

The anchor position for placing the title and subtitle text. One of "start", "middle", or "end". For example, with an orientation of top these anchor positions map to a left-, center-, or right-aligned title.

angle : float

Angle in degrees of title and subtitle text.

baseline : TextBaseline

Vertical text baseline for title and subtitle text. One of "top", "middle", "bottom", or "alphabetic".

color : anyOf(None, Color)

Text color for title text.

dx : float

Delta offset for title and subtitle text x-coordinate.

dy : float

Delta offset for title and subtitle text y-coordinate.

font : string

Font name for title text.

fontSize : float

Font size in pixels for title text.

fontStyle : FontStyle

Font style for title text.

fontWeight : FontWeight

Font weight for title text. This can be either a string (e.g "bold", "normal" ) or a number ( 100, 200, 300, …, 900 where "normal" = 400 and "bold" = 700 ).

frame : anyOf(TitleFrame, string)

The reference frame for the anchor position, one of "bounds" (to anchor relative to the full bounding box) or "group" (to anchor relative to the group width or height).

limit : float

The maximum allowed length in pixels of title and subtitle text.

lineHeight : float

Line height in pixels for multi-line title text.

offset : float

The orthogonal offset in pixels by which to displace the title group from its position along the edge of the chart.

orient : TitleOrient

Default title orientation ( "top", "bottom", "left", or "right" )

subtitleColor : anyOf(None, Color)

Text color for subtitle text.

subtitleFont : string

Font name for subtitle text.

subtitleFontSize : float

Font size in pixels for subtitle text.

subtitleFontStyle : FontStyle

Font style for subtitle text.

subtitleFontWeight : FontWeight

Font weight for subtitle text. This can be either a string (e.g "bold", "normal" ) or a number ( 100, 200, 300, …, 900 where "normal" = 400 and "bold" = 700 ).

subtitleLineHeight : float

Line height in pixels for multi-line subtitle text.

subtitlePadding : float

The padding in pixels between title and subtitle text.

__init__(align=Undefined, anchor=Undefined, angle=Undefined, baseline=Undefined, color=Undefined, dx=Undefined, dy=Undefined, font=Undefined, fontSize=Undefined, fontStyle=Undefined, fontWeight=Undefined, frame=Undefined, limit=Undefined, lineHeight=Undefined, offset=Undefined, orient=Undefined, subtitleColor=Undefined, subtitleFont=Undefined, subtitleFontSize=Undefined, subtitleFontStyle=Undefined, subtitleFontWeight=Undefined, subtitleLineHeight=Undefined, subtitlePadding=Undefined, **kwds)

Methods

__init__([align, anchor, angle, baseline, …])
copy([deep, ignore]) Return a copy of the object
from_dict(dct[, validate, _wrapper_classes]) Construct class from a dictionary representation
from_json(json_string[, validate]) Instantiate the object from a valid JSON string
resolve_references([schema]) Resolve references in the context of this object’s schema or root schema.
to_dict([validate, ignore, context]) Return a dictionary representation of the object
to_json([validate, ignore, context, indent, …]) Emit the JSON representation for this object as a string.
validate(instance[, schema]) Validate the instance against the class schema in the context of the rootschema.
validate_property(name, value[, schema]) Validate a property against property schema in the context of the
copy(deep=True, ignore=())

Return a copy of the object

Parameters:
deep : boolean or list, optional

If True (default) then return a deep copy of all dict, list, and SchemaBase objects within the object structure. If False, then only copy the top object. If a list or iterable, then only copy the listed attributes.

ignore : list, optional

A list of keys for which the contents should not be copied, but only stored by reference.

from_dict(dct, validate=True, _wrapper_classes=None)

Construct class from a dictionary representation

Parameters:
dct : dictionary

The dict from which to construct the class

validate : boolean

If True (default), then validate the input against the schema.

_wrapper_classes : list (optional)

The set of SchemaBase classes to use when constructing wrappers of the dict inputs. If not specified, the result of cls._default_wrapper_classes will be used.

Returns:
obj : Schema object

The wrapped schema

Raises:
jsonschema.ValidationError :

if validate=True and dct does not conform to the schema

from_json(json_string, validate=True, **kwargs)

Instantiate the object from a valid JSON string

Parameters:
json_string : string

The string containing a valid JSON chart specification.

validate : boolean

If True (default), then validate the input against the schema.

**kwargs :

Additional keyword arguments are passed to json.loads

Returns:
chart : Chart object

The altair Chart object built from the specification.

resolve_references(schema=None)

Resolve references in the context of this object’s schema or root schema.

to_dict(validate=True, ignore=None, context=None)

Return a dictionary representation of the object

Parameters:
validate : boolean or string

If True (default), then validate the output dictionary against the schema. If “deep” then recursively validate all objects in the spec. This takes much more time, but it results in friendlier tracebacks for large objects.

ignore : list

A list of keys to ignore. This will not passed to child to_dict function calls.

context : dict (optional)

A context dictionary that will be passed to all child to_dict function calls

Returns:
dct : dictionary

The dictionary representation of this object

Raises:
jsonschema.ValidationError :

if validate=True and the dict does not conform to the schema

to_json(validate=True, ignore=[], context={}, indent=2, sort_keys=True, **kwargs)

Emit the JSON representation for this object as a string.

Parameters:
validate : boolean or string

If True (default), then validate the output dictionary against the schema. If “deep” then recursively validate all objects in the spec. This takes much more time, but it results in friendlier tracebacks for large objects.

ignore : list

A list of keys to ignore. This will not passed to child to_dict function calls.

context : dict (optional)

A context dictionary that will be passed to all child to_dict function calls

indent : integer, default 2

the number of spaces of indentation to use

sort_keys : boolean, default True

if True, sort keys in the output

**kwargs

Additional keyword arguments are passed to json.dumps()

Returns:
spec : string

The JSON specification of the chart object.

validate(instance, schema=None)

Validate the instance against the class schema in the context of the rootschema.

validate_property(name, value, schema=None)

Validate a property against property schema in the context of the rootschema