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use plotters::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let root_area =
BitMapBackend::new("plotters-doc-data/sample.png", (1024, 768)).into_drawing_area();
root_area.fill(&WHITE)?;
let root_area = root_area.titled("Image Title", ("sans-serif", 60).into_font())?;
let (upper, lower) = root_area.split_vertically(512);
let mut cc = ChartBuilder::on(&upper)
.margin(5)
.set_all_label_area_size(50)
.caption("Sine and Cosine", ("sans-serif", 40).into_font())
.build_ranged(-3.4f32..3.4f32, -1.2f32..1.2f32)?;
cc.configure_mesh()
.x_labels(20)
.y_labels(10)
.disable_mesh()
.x_label_formatter(&|v| format!("{:.1}", v))
.y_label_formatter(&|v| format!("{:.1}", v))
.draw()?;
cc.draw_series(LineSeries::new(
(0..12).map(|x| ((x - 6) as f32 / 2.0, ((x - 6) as f32 / 2.0).sin())),
&RED,
))?
.label("Sine")
.legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &RED));
cc.draw_series(LineSeries::new(
(0..6800).map(|x| {
(
(x - 3400) as f32 / 1000.0,
((x - 3400) as f32 / 1000.0).cos(),
)
}),
&BLUE,
))?
.label("Cosine")
.legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &BLUE));
cc.configure_series_labels().border_style(&BLACK).draw()?;
/*
// It's possible to use a existing pointing element
cc.draw_series(PointSeries::<_, _, Circle<_>>::new(
(0..6).map(|x| ((x - 3) as f32 / 1.0, ((x - 3) as f32 / 1.0).sin())),
5,
Into::<ShapeStyle>::into(&RGBColor(255,0,0)).filled(),
))?;*/
// Otherwise you can use a function to construct your pointing element yourself
cc.draw_series(PointSeries::of_element(
(0..6).map(|x| ((x - 3) as f32 / 1.0, ((x - 3) as f32 / 1.0).sin())),
5,
ShapeStyle::from(&RED).filled(),
&|coord, size, style| {
EmptyElement::at(coord)
+ Circle::new((0, 0), size, style)
+ Text::new(
format!("{:?}", coord),
(0, 15),
("sans-serif", 15).into_font(),
)
},
))?;
let drawing_areas = lower.split_evenly((1, 2));
for (drawing_area, idx) in drawing_areas.iter().zip(1..) {
let mut cc = ChartBuilder::on(&drawing_area)
.x_label_area_size(30)
.y_label_area_size(30)
.margin_right(20)
.caption(
format!("y = x^{}", 1 + 2 * idx),
("sans-serif", 40).into_font(),
)
.build_ranged(-1f32..1f32, -1f32..1f32)?;
cc.configure_mesh().x_labels(5).y_labels(3).draw()?;
cc.draw_series(LineSeries::new(
(-100..100).map(|x| {
(
x as f32 / 100.0,
(x as f32 / 100.0).powf(idx as f32 * 2.0 + 1.0),
)
}),
&BLUE,
))?;
}
Ok(())
}
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