1 files changed, 54 insertions, 0 deletions
diff --git a/vendor/plotters/examples/customized_coord.rs b/vendor/plotters/examples/customized_coord.rs
new file mode 100644
index 000000000..cb3a18f03
--- /dev/null
+++ b/vendor/plotters/examples/customized_coord.rs
@@ -0,0 +1,54 @@
+use plotters::{
+    coord::ranged1d::{KeyPointHint, NoDefaultFormatting, ValueFormatter},
+    prelude::*,
+};
+const OUT_FILE_NAME: &'static str = "plotters-doc-data/customized_coord.svg";
+
+struct CustomizedX(u32);
+
+impl Ranged for CustomizedX {
+    type ValueType = u32;
+    type FormatOption = NoDefaultFormatting;
+    fn map(&self, value: &Self::ValueType, limit: (i32, i32)) -> i32 {
+        let size = limit.1 - limit.0;
+        ((*value as f64 / self.0 as f64) * size as f64) as i32 + limit.0
+    }
+
+    fn range(&self) -> std::ops::Range<Self::ValueType> {
+        0..self.0
+    }
+
+    fn key_points<Hint: KeyPointHint>(&self, hint: Hint) -> Vec<Self::ValueType> {
+        if hint.max_num_points() < (self.0 as usize) {
+            return vec![];
+        }
+
+        (0..self.0).collect()
+    }
+}
+
+impl ValueFormatter<u32> for CustomizedX {
+    fn format_ext(&self, value: &u32) -> String {
+        format!("{} of {}", value, self.0)
+    }
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let area = SVGBackend::new(OUT_FILE_NAME, (1024, 760)).into_drawing_area();
+    area.fill(&WHITE)?;
+
+    let mut chart = ChartBuilder::on(&area)
+        .set_all_label_area_size(50)
+        .build_cartesian_2d(CustomizedX(7), 0.0..10.0)?;
+
+    chart.configure_mesh().draw()?;
+
+    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()
+}