Struct LayerSpec 

pub struct LayerSpec {

    pub data: Option<Data>,
    pub description: Option<String>,
    pub encoding: Option<SpecEncoding>,
    pub height: Option<f64>,
    pub layer: Option<Vec<LayerSpec>>,
    pub name: Option<String>,
    pub projection: Option<Projection>,
    pub resolve: Option<Resolve>,
    pub title: Option<Title>,
    pub transform: Option<Vec<Transform>>,
    pub width: Option<f64>,
    pub mark: Option<AnyMark>,
    pub selection: Option<HashMap<String, SelectionDef>>,
}

Layer Spec with encoding and projection

Unit spec that can have a composite mark.

Fields

data: Option<Data>

An object describing the data source

description: Option<String>

Description of this mark for commenting purpose.

encoding: Option<SpecEncoding>

A shared key-value mapping between encoding channels and definition of fields in the underlying layers.

A key-value mapping between encoding channels and definition of fields.

height: Option<f64>

The height of a visualization.

Default value:

• If a view’s autosize type is "fit" or its y-channel has a continuous scale, the height will be the value of config.view.height.
• For y-axis with a band or point scale: if rangeStep is a numeric value or unspecified, the height is determined by the range step, paddings, and the cardinality of the field mapped to y-channel. Otherwise, if the rangeStep is null, the height will be the value of config.view.height.
• If no field is mapped to y channel, the height will be the value of rangeStep.

Note: For plots with row and column channels, this represents the height of a single view.

See also: The documentation for width and height contains more examples.

layer: Option<Vec<LayerSpec>>

Layer or single view specifications to be layered.

Note: Specifications inside layer cannot use row and column channels as layering facet specifications is not allowed.

name: Option<String>

Name of the visualization for later reference.

projection: Option<Projection>

An object defining properties of the geographic projection shared by underlying layers.

An object defining properties of geographic projection, which will be applied to shape path for "geoshape" marks and to latitude and "longitude" channels for other marks.

resolve: Option<Resolve>

Scale, axis, and legend resolutions for layers.

title: Option<Title>

Title for the plot.

transform: Option<Vec<Transform>>

An array of data transformations such as filter and new field calculation.

width: Option<f64>

The width of a visualization.

Default value: This will be determined by the following rules:

• If a view’s autosize type is "fit" or its x-channel has a continuous scale, the width will be the value of config.view.width.
• For x-axis with a band or point scale: if rangeStep is a numeric value or unspecified, the width is determined by the range step, paddings, and the cardinality of the field mapped to x-channel. Otherwise, if the rangeStep is null, the width will be the value of config.view.width.
• If no field is mapped to x channel, the width will be the value of config.scale.textXRangeStep for text mark and the value of rangeStep for other marks.

Note: For plots with row and column channels, this represents the width of a single view.

See also: The documentation for width and height contains more examples.

mark: Option<AnyMark>

A string describing the mark type (one of "bar", "circle", "square", "tick", "line", "area", "point", "rule", "geoshape", and "text") or a mark definition object.

selection: Option<HashMap<String, SelectionDef>>

A key-value mapping between selection names and definitions.

Trait Implementations

impl Debug for LayerSpec

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LayerSpec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for LayerSpec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.