Struct StyleExpressionInputs 

pub struct StyleExpressionInputs<'a> {
    pub zoom: Option<f64>,
    pub color_ramp_parameter: Option<f64>,
    pub feature: &'a str,
    pub feature_state: &'a str,
    pub global_state: &'a str,
    pub canonical_tile_id: Option<CanonicalTileId>,
    pub available_images: &'a [&'a str],
}

The inputs that a style expression reads while it evaluates.

See mln_style_expression_inputs in the C API reference.

Fields

zoom: Option<f64>

color_ramp_parameter: Option<f64>

The value of heatmap-density, line-progress, and elevation.

feature: &'a str

The feature to evaluate against, as a GeoJSON feature, or empty for none.

feature_state: &'a str

The feature’s state, as a JSON object, or empty for none.

global_state: &'a str

The values that global-state reads, as a JSON object, or empty for none.

canonical_tile_id: Option<CanonicalTileId>

The tile that holds the feature. within and distance need it to read the feature’s geometry.

available_images: &'a [&'a str]

The IDs of the images that image treats as available.

Trait Implementations

impl<'a> Clone for StyleExpressionInputs<'a>

fn clone(&self) -> StyleExpressionInputs<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for StyleExpressionInputs<'a>

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

Formats the value using the given formatter.

impl<'a> Default for StyleExpressionInputs<'a>

fn default() -> StyleExpressionInputs<'a>

Returns the “default value” for a type.

impl<'a> PartialEq for StyleExpressionInputs<'a>

fn eq(&self, other: &StyleExpressionInputs<'a>) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<'a> StructuralPartialEq for StyleExpressionInputs<'a>