Struct wasm_wrapper::drawer::Drawer

pub struct Drawer {
    canvas: HtmlCanvasElement,
    context: CanvasRenderingContext2d,
}

Stores pointers to HTML elements.

Fields

canvas: HtmlCanvasElement

context: CanvasRenderingContext2d

Implementations

impl Drawer

pub fn new() -> Drawer

Gets HTML elements are hold them.

pub fn draw( &self, nitems: usize, angles: &Vec<f64>, tpoints: &Vec<[f64; 2]>, enes: &[Vec<f64>; 2] )

Core function to draw all to canvas.

• nitems - number of mass points of the pendulum.
• angles - rotational angles of the mass points.
• tpoints- trajectory of the last mass point.
• enes - history of the energies.

pub fn update_canvas_size(&self)

Updates canvas size when the window is resized.