Struct BarDataset

pub struct BarDataset {
    pub label: String,
    pub color: [u8; 3],
    pub data: Vec<(f64, f64)>,
}

A dataset for a bar chart, containing data points, appearance properties, and metadata.

Fields

label: String

Label for the dataset, used in legends or annotations.

color: [u8; 3]

Color of the bars in RGB format.

data: Vec<(f64, f64)>

A collection of (x, y) data points where x is the category and y is the value.

Implementations

impl BarDataset

pub fn new(label: &str, color: [u8; 3]) -> Self

Creates a new BarDataset instance with the specified label and color.

Parameters

• label: A descriptive label for the dataset.
• color: The RGB color of the bars.

Returns

A new BarDataset instance with an empty list of data points.

Example

let dataset = BarDataset::new("Sales Data", [0, 128, 255]);

pub fn add_data(&mut self, x: f64, y: f64)

Adds a data point to the dataset.

Parameters

• x: The x-coordinate representing the category or group (e.g., year).
• y: The y-coordinate representing the value for the category.

Example

let mut dataset = BarDataset::new("Revenue", [255, 0, 0]);
dataset.add_data(2020.0, 1500.0);
dataset.add_data(2021.0, 2000.0);

Trait Implementations

impl Dataset for BarDataset

fn get_points(&self) -> Vec<(f64, f64)>

Implementation of the Dataset trait for BarDataset.

• get_points: Returns the bar data as (x, y) pairs.
• add_point: Adds a new (x, y) pair to the bar dataset.

fn add_point(&mut self, point: (f64, f64))

Adds a single point to the dataset.