1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/plotters/examples/relative_size.rs b/vendor/plotters/examples/relative_size.rs
new file mode 100644
index 000000000..66eaec130
--- /dev/null
+++ b/vendor/plotters/examples/relative_size.rs
@@ -0,0 +1,57 @@
+use plotters::coord::Shift;
+use plotters::prelude::*;
+
+fn draw_chart<B: DrawingBackend>(root: &DrawingArea<B, Shift>) -> DrawResult<(), B> {
+    let mut chart = ChartBuilder::on(root)
+        .caption(
+            "Relative Size Example",
+            ("sans-serif", (5).percent_height()),
+        )
+        .x_label_area_size((10).percent_height())
+        .y_label_area_size((10).percent_width())
+        .margin(5)
+        .build_cartesian_2d(-5.0..5.0, -1.0..1.0)?;
+
+    chart
+        .configure_mesh()
+        .disable_x_mesh()
+        .disable_y_mesh()
+        .label_style(("sans-serif", (3).percent_height()))
+        .draw()?;
+
+    chart.draw_series(LineSeries::new(
+        (0..1000)
+            .map(|x| x as f64 / 100.0 - 5.0)
+            .map(|x| (x, x.sin())),
+        &RED,
+    ))?;
+    Ok(())
+}
+
+const OUT_FILE_NAME: &'static str = "plotters-doc-data/relative_size.png";
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let root = BitMapBackend::new(OUT_FILE_NAME, (1024, 768)).into_drawing_area();
+
+    root.fill(&WHITE)?;
+
+    let (left, right) = root.split_horizontally((70).percent_width());
+
+    draw_chart(&left)?;
+
+    let (upper, lower) = right.split_vertically(300);
+
+    draw_chart(&upper)?;
+    draw_chart(&lower)?;
+    let root = root.shrink((200, 200), (150, 100));
+    draw_chart(&root)?;
+
+    // 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()
+}