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57 lines
1.6 KiB
57 lines
1.6 KiB
use plotters::prelude::*;
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let root =
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BitMapBackend::new("plotters-doc-data/twoscale.png", (1024, 768)).into_drawing_area();
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root.fill(&WHITE)?;
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let mut chart = ChartBuilder::on(&root)
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.x_label_area_size(35)
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.y_label_area_size(40)
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.right_y_label_area_size(40)
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.margin(5)
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.caption("Dual Y-Axis Example", ("sans-serif", 50.0).into_font())
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.build_cartesian_2d(0f32..10f32, LogRange(0.1f32..1e10f32))?
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.set_secondary_coord(0f32..10f32, -1.0f32..1.0f32);
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chart
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.configure_mesh()
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.disable_x_mesh()
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.disable_y_mesh()
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.y_desc("Log Scale")
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.y_label_formatter(&|x| format!("{:e}", x))
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.draw()?;
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chart
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.configure_secondary_axes()
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.y_desc("Linear Scale")
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.draw()?;
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chart
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.draw_series(LineSeries::new(
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(0..=100).map(|x| (x as f32 / 10.0, (1.02f32).powf(x as f32 * x as f32 / 10.0))),
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&BLUE,
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))?
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.label("y = 1.02^x^2")
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.legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &BLUE));
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chart
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.draw_secondary_series(LineSeries::new(
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(0..=100).map(|x| (x as f32 / 10.0, (x as f32 / 5.0).sin())),
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&RED,
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))?
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.label("y = sin(2x)")
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.legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &RED));
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chart
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.configure_series_labels()
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.background_style(&RGBColor(128, 128, 128))
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.draw()?;
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Ok(())
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}
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#[test]
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fn entry_point() {
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main().unwrap()
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}
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