Struct SvgCanvas

pub struct SvgCanvas {
    pub width: u32,
    pub height: u32,
    pub elements: Vec<String>,
    pub margin: u32,
    pub background_color: String,
}

A structure for creating and managing an SVG-based drawing canvas.

Fields

width: u32

Width of the SVG canvas.

height: u32

Height of the SVG canvas.

elements: Vec<String>

A vector storing SVG elements as strings.

margin: u32

Margin size for the SVG canvas.

background_color: String

Background color of the SVG canvas.

Implementations

impl SvgCanvas

pub fn new(width: u32, height: u32, background_color: &str, margin: u32) -> Self

Creates a new SvgCanvas with the specified dimensions, background color, and margin.

Parameters

• width: The width of the canvas in pixels.
• height: The height of the canvas in pixels.
• background_color: The background color as a string.
• margin: Margin size in pixels.

Returns

A new SvgCanvas instance.

pub fn clear(&mut self)

Clears the SVG canvas by removing all elements and reinitializing.

pub fn draw_line( &mut self, x1: f64, y1: f64, x2: f64, y2: f64, color: &str, stroke_width: f64, )

Adds a line to the SVG canvas.

Parameters

• x1, y1: Coordinates of the start point.
• x2, y2: Coordinates of the end point.
• color: The stroke color of the line.
• stroke_width: The width of the line stroke.

pub fn draw_line_rgb( &mut self, x1: f64, y1: f64, x2: f64, y2: f64, color: [u8; 3], stroke_width: f64, )

Adds a line with RGB color to the SVG canvas.

Parameters

• x1, y1: Coordinates of the start point.
• x2, y2: Coordinates of the end point.
• color: The RGB color of the line.
• stroke_width: The width of the line stroke.

pub fn draw_rect( &mut self, x: f64, y: f64, width: f64, height: f64, fill_color: &str, stroke_color: &str, stroke_width: f64, opacity: f64, )

Adds a rectangle to the SVG canvas.

Parameters

• x, y: Coordinates of the top-left corner.
• width, height: Dimensions of the rectangle.
• fill_color: Fill color of the rectangle.
• stroke_color: Stroke color of the rectangle.
• stroke_width: Width of the rectangle’s border.
• opacity: Opacity of the rectangle fill (0.0 to 1.0).

pub fn add_font_style( &mut self, font_url: &str, class_name: &str, font_family: &str, )

Adds a font style definition to the SVG canvas.

Parameters

• font_url: URL of the font to be imported.
• class_name: CSS class name for applying the font.
• font_family: Name of the font family.

pub fn draw_circle(&mut self, cx: f64, cy: f64, r: f64, color: &str)

Draws a circle on the SVG canvas.

Parameters

• cx, cy: Coordinates of the circle’s center.
• r: Radius of the circle.
• color: Fill color of the circle.

pub fn draw_text( &mut self, x: f64, y: f64, text: &str, font_size: f64, color: &str, )

Adds a text element to the SVG canvas.

Parameters

• x, y: Coordinates of the text’s position.
• text: The text content.
• font_size: Font size of the text.
• color: Text color.

pub fn draw_title( &mut self, x: f64, y: f64, text: &str, font_size: f64, color: &str, )

Adds a text element to the SVG canvas.

Parameters

• x, y: Coordinates of the text’s position.
• text: The text content.
• font_size: Font size of the text.
• color: Text color.

pub fn draw_grid( &mut self, x_min: f64, x_max: f64, y_min: f64, y_max: f64, x_ticks: usize, y_ticks: usize, color: &str, )

Draws a grid on the SVG canvas.

Parameters

• x_min, x_max: Horizontal range for the grid.
• y_min, y_max: Vertical range for the grid.
• x_ticks: Number of grid lines along the x-axis.
• y_ticks: Number of grid lines along the y-axis.
• color: Color of the grid lines.

pub fn save(&self, file_path: &str) -> Result<()>

Saves the SVG content to a file.

Parameters

• file_path: The path to save the SVG file.

Errors

Returns an io::Result if saving fails.

pub fn get_svg_as_text(&self) -> String

Retrieves the SVG content as a single string.

Returns

The complete SVG as a string.