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use plotters::prelude::*;
const OUT_FILE_NAME: &'static str = "plotters-doc-data/nested_coord.png";
fn main() -> Result<(), Box<dyn std::error::Error>> {
let root = BitMapBackend::new(OUT_FILE_NAME, (640, 480)).into_drawing_area();
root.fill(&WHITE)?;
let mut chart = ChartBuilder::on(&root)
.x_label_area_size(35)
.y_label_area_size(40)
.margin(5)
.caption("Nested Coord", ("sans-serif", 50.0))
.build_cartesian_2d(
["Linear", "Quadratic"].nested_coord(|_| 0.0..10.0),
0.0..10.0,
)?;
chart
.configure_mesh()
.disable_mesh()
.axis_desc_style(("sans-serif", 15))
.draw()?;
chart.draw_series(LineSeries::new(
(0..10)
.map(|x| x as f64 / 1.0)
.map(|x| ((&"Linear", x).into(), x)),
&RED,
))?;
chart.draw_series(LineSeries::new(
(0..10)
.map(|x| x as f64 / 1.0)
.map(|x| ((&"Quadratic", x).into(), x * x / 10.0)),
&RED,
))?;
// To avoid the IO failure being ignored silently, we manually call the present function
root.present().expect("Unable to write result to file, please make sure 'plotters-doc-data' dir exists under current dir");
println!("Result has been saved to {}", OUT_FILE_NAME);
Ok(())
}
#[test]
fn entry_point() {
main().unwrap()
}
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