orbital_data/
binding.rs

1/// Declarative binding from [`crate::Dataset`] fields to chart geometry.
2#[derive(Clone, Debug, Default, PartialEq, Eq)]
3pub struct ChartFieldBinding {
4    /// Category or time axis field key.
5    pub x_field: Option<String>,
6    /// One or more value series field keys.
7    pub y_fields: Vec<String>,
8    /// Pivot long→wide by grouping on this field (e.g. region column).
9    pub series_by_field: Option<String>,
10    /// Field key driving per-item color.
11    pub color_field: Option<String>,
12    /// Field key for data labels.
13    pub label_field: Option<String>,
14    /// Scatter z-axis / bubble size field key.
15    pub size_field: Option<String>,
16    /// Scatter point identity field key (falls back to record id when unset).
17    pub id_field: Option<String>,
18}
19
20impl ChartFieldBinding {
21    /// Shorthand for a single category axis and one or more value fields.
22    pub fn new(x_field: impl Into<String>, y_fields: Vec<String>) -> Self {
23        Self {
24            x_field: Some(x_field.into()),
25            y_fields,
26            ..Default::default()
27        }
28    }
29}
orbital_data/binding.rs

orbital_data/
binding.rs
