altair.OrderValue#
- class altair.OrderValue(value, condition=Undefined, **kwds)#
OrderValue schema wrapper
Mapping(required=[value])
- Parameters:
- valueanyOf(float,
ExprRef
) A constant value in visual domain (e.g.,
"red"
/"#0099ff"
/ gradient definition for color, values between0
to1
for opacity).- conditionanyOf(
ConditionalValueDefnumber
, List(ConditionalValueDefnumber
)) One or more value definition(s) with a parameter or a test predicate.
Note: A field definition’s
condition
property can only contain conditional value definitions since Vega-Lite only allows at most one encoded field per encoding channel.
- valueanyOf(float,
- __init__(value, condition=Undefined, **kwds)#
Methods
__init__
(value[, condition])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 rootschema
Attributes
condition
One or more value definition(s) with [a parameter or a test predicate](https://vega.github.io/vega-lite/docs/condition.html).
value
A constant value in visual domain (e.g., "red" / "#0099ff" / [gradient definition](https://vega.github.io/vega-lite/docs/types.html#gradient) for color, values between 0 to 1 for opacity).