Struct AreaChart

pub struct AreaChart {
    pub title: String,
    pub x_label: String,
    pub y_label: String,
    pub datasets: Vec<AreaChartDataset>,
    pub config: FigureConfig,
}

Represents an area chart, including its title, axis labels, datasets, and configuration.

Fields

title: String

Title of the area chart.

x_label: String

Label for the X-axis.

y_label: String

Label for the Y-axis.

datasets: Vec<AreaChartDataset>

A collection of datasets to be visualized in the area chart.

config: FigureConfig

Configuration settings for rendering the chart (e.g., colors, fonts, grid).

Implementations

impl AreaChart

pub fn new( title: &str, x_label: &str, y_label: &str, config: FigureConfig, ) -> Self

Creates a new AreaChart instance with the specified title, axis labels, and configuration.

Parameters

• title: The title of the area chart.
• x_label: The label for the X-axis.
• y_label: The label for the Y-axis.
• config: The FigureConfig containing appearance and behavior settings for the chart.

Returns

A new AreaChart instance with an empty dataset.

Example

use crate::figure::configuration::figureconfig::FigureConfig;
use crate::figure::areachart::AreaChart;

let config = FigureConfig::default();
let area_chart = AreaChart::new("Example Chart", "X Axis", "Y Axis", config);

pub fn add_dataset(&mut self, dataset: AreaChartDataset)

Adds a dataset to the area chart.

Parameters

• dataset: The AreaChartDataset to be added to the chart.

Example

use crate::figure::datasets::areachartdataset::AreaChartDataset;
let dataset = AreaChartDataset::new([255, 0, 0], "Example Dataset", 0.5);
area_chart.add_dataset(dataset);

pub fn draw_area( &self, canvas: &mut PixelCanvas, dataset: &AreaChartDataset, origin_x: i32, origin_y: i32, scale_x: f64, scale_y: f64, )

Draws the area under a dataset on the canvas.

This method fills the area under the dataset line, interpolating between points and blending the pixels into the canvas.

Parameters

• canvas: The PixelCanvas on which to draw the area.
• dataset: The AreaChartDataset whose area is to be drawn.
• origin_x: The x-coordinate of the chart’s origin on the canvas.
• origin_y: The y-coordinate of the chart’s origin on the canvas.
• scale_x: The scaling factor for converting X-axis values to canvas coordinates.
• scale_y: The scaling factor for converting Y-axis values to canvas coordinates.

Details

The method interpolates between adjacent points in the dataset to fill the area under the line segment and blend it into the canvas using the dataset’s color and transparency.

Example

let scale_x = 10.0;
let scale_y = 10.0;
area_chart.draw_area(&mut canvas, &dataset, 50, 400, scale_x, scale_y);

Trait Implementations

impl Drawer for AreaChart

fn draw_svg(&mut self, svg_canvas: &mut SvgCanvas)

Draws the plot content on an SvgCanvas.

fn draw(&mut self, canvas: &mut PixelCanvas)

Draws the main content of the plot on a PixelCanvas.

fn draw_legend(&self, canvas: &mut PixelCanvas)

Draws the legend for the plot on a PixelCanvas.

fn draw_grid(&self, canvas: &mut PixelCanvas, config: &FigureConfig)

Draws the grid for the plot based on the provided configuration.

fn draw_axis( &self, canvas: &mut PixelCanvas, config: &FigureConfig, x1: i32, y1: i32, x2: i32, y2: i32, )

Draws an axis line on the canvas.

fn draw_label( &self, canvas: &mut PixelCanvas, config: &FigureConfig, x: u32, y: u32, text: &str, )

Draws a text label on the canvas.

fn draw_title( &self, canvas: &mut PixelCanvas, config: &FigureConfig, x: u32, y: u32, text: &str, )

Draws the plot title on the canvas.

fn draw_axis_value( &self, canvas: &mut PixelCanvas, config: &FigureConfig, x: u32, y: u32, text: &str, axis: AxisType, )

Draws a value on the axis (tick label) based on its type.