1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/plotters/examples/3d-plot.rs b/vendor/plotters/examples/3d-plot.rs
new file mode 100644
index 000000000..af40cc29e
--- /dev/null
+++ b/vendor/plotters/examples/3d-plot.rs
@@ -0,0 +1,62 @@
+use plotters::prelude::*;
+const OUT_FILE_NAME: &'static str = "plotters-doc-data/3d-plot.svg";
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let area = SVGBackend::new(OUT_FILE_NAME, (1024, 760)).into_drawing_area();
+
+    area.fill(&WHITE)?;
+
+    let x_axis = (-3.0..3.0).step(0.1);
+    let z_axis = (-3.0..3.0).step(0.1);
+
+    let mut chart = ChartBuilder::on(&area)
+        .caption(format!("3D Plot Test"), ("sans", 20))
+        .build_cartesian_3d(x_axis.clone(), -3.0..3.0, z_axis.clone())?;
+
+    chart.with_projection(|mut pb| {
+        pb.yaw = 0.5;
+        pb.scale = 0.9;
+        pb.into_matrix()
+    });
+
+    chart
+        .configure_axes()
+        .light_grid_style(BLACK.mix(0.15))
+        .max_light_lines(3)
+        .draw()?;
+
+    chart
+        .draw_series(
+            SurfaceSeries::xoz(
+                (-30..30).map(|f| f as f64 / 10.0),
+                (-30..30).map(|f| f as f64 / 10.0),
+                |x, z| (x * x + z * z).cos(),
+            )
+            .style(BLUE.mix(0.2).filled()),
+        )?
+        .label("Surface")
+        .legend(|(x, y)| Rectangle::new([(x + 5, y - 5), (x + 15, y + 5)], BLUE.mix(0.5).filled()));
+
+    chart
+        .draw_series(LineSeries::new(
+            (-100..100)
+                .map(|y| y as f64 / 40.0)
+                .map(|y| ((y * 10.0).sin(), y, (y * 10.0).cos())),
+            &BLACK,
+        ))?
+        .label("Line")
+        .legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &BLACK));
+
+    chart
+        .configure_series_labels()
+        .border_style(&BLACK)
+        .draw()?;
+
+    // To avoid the IO failure being ignored silently, we manually call the present function
+    area.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()
+}