Trait termplot::DrawView

source · 
pub trait DrawView {
    fn draw(&self, view: &View, canvas: &mut ViewCanvas<'_>);
}
Expand description

A drawable component on the view.

Required Methods§

Draw the component on the given canvas.

Simply draw on the given canvas lines and/or points. See ViewCanvas for more informations.

view is provided only to give context if needed. It gives access to the domain, codomain, size of the view, etc… See View for more informations.

Examples

This draws a rectangle centered on both the x and y axis.

use termplot::{ViewCanvas, DrawView, Domain, Size, Plot, View};

struct Rect;

impl DrawView for Rect {
    fn draw(&self, _: &View, canvas: &mut ViewCanvas) {
        canvas.line(-2.0, 2.0, 2.0, 2.0);
        canvas.line(2.0, 2.0, 2.0, -2.0);
        canvas.line(-2.0, -2.0, 2.0, -2.0);
        canvas.line(-2.0, 2.0, -2.0, -2.0);
    }
}

let mut plot = Plot::default();
plot.set_domain(Domain(-5.0..5.0))
    .set_codomain(Domain(-5.0..5.0))
    .set_size(Size::new(50, 50))
    .add_plot(Box::new(Rect));

println!("{plot}");

Implementors§