1 files changed, 47 insertions, 0 deletions
diff --git a/vendor/plotters/examples/nested_coord.rs b/vendor/plotters/examples/nested_coord.rs
new file mode 100644
index 000000000..b70010148
--- /dev/null
+++ b/vendor/plotters/examples/nested_coord.rs
@@ -0,0 +1,47 @@
+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()
+}