Update examples/stock.rs from master

It was crashing, perhaps due to a breaking change in chrono.
plotters-rs · Sep 28, 2024 · 9995160 · 9995160
1 parent 90ebcf3
commit 9995160
Showing 1 changed file with 42 additions and 40 deletions.
diff --git a/plotters/examples/stock.rs b/plotters/examples/stock.rs
@@ -1,19 +1,21 @@
-use chrono::{DateTime, Duration, NaiveDate};
+use chrono::offset::{Local, TimeZone};
+use chrono::{Date, Duration};
 use plotters::prelude::*;
-fn parse_time(t: &str) -> NaiveDate {
-    DateTime::parse_from_str(&format!("{} 0:0", t), "%Y-%m-%d %H:%M")
+fn parse_time(t: &str) -> Date<Local> {
+    Local
+        .datetime_from_str(&format!("{} 0:0", t), "%Y-%m-%d %H:%M")
         .unwrap()
-        .date_naive()
+        .date()
 }
-const OUT_FILE_NAME: &'static str = "plotters-doc-data/stock.png";
+const OUT_FILE_NAME: &str = "plotters-doc-data/stock.png";
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let data = get_data();
     let root = BitMapBackend::new(OUT_FILE_NAME, (1024, 768)).into_drawing_area();
     root.fill(&WHITE)?;
 
     let (to_date, from_date) = (
-        parse_time(&data[0].0) + Duration::days(1),
-        parse_time(&data[29].0) - Duration::days(1),
+        parse_time(data[0].0) + Duration::days(1),
+        parse_time(data[29].0) - Duration::days(1),
     );
 
     let mut chart = ChartBuilder::on(&root)
@@ -22,7 +24,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         .caption("MSFT Stock Price", ("sans-serif", 50.0).into_font())
         .build_cartesian_2d(from_date..to_date, 110f32..135f32)?;
 
-    chart.configure_mesh().light_line_style(&WHITE).draw()?;
+    chart.configure_mesh().light_line_style(WHITE).draw()?;
 
     chart.draw_series(
         data.iter().map(|x| {
@@ -38,38 +40,38 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 }
 
 fn get_data() -> Vec<(&'static str, f32, f32, f32, f32)> {
-    return vec![
-        ("2019-04-25", 130.0600, 131.3700, 128.8300, 129.1500),
-        ("2019-04-24", 125.7900, 125.8500, 124.5200, 125.0100),
-        ("2019-04-23", 124.1000, 125.5800, 123.8300, 125.4400),
-        ("2019-04-22", 122.6200, 124.0000, 122.5700, 123.7600),
-        ("2019-04-18", 122.1900, 123.5200, 121.3018, 123.3700),
-        ("2019-04-17", 121.2400, 121.8500, 120.5400, 121.7700),
-        ("2019-04-16", 121.6400, 121.6500, 120.1000, 120.7700),
-        ("2019-04-15", 120.9400, 121.5800, 120.5700, 121.0500),
-        ("2019-04-12", 120.6400, 120.9800, 120.3700, 120.9500),
-        ("2019-04-11", 120.5400, 120.8500, 119.9200, 120.3300),
-        ("2019-04-10", 119.7600, 120.3500, 119.5400, 120.1900),
-        ("2019-04-09", 118.6300, 119.5400, 118.5800, 119.2800),
-        ("2019-04-08", 119.8100, 120.0200, 118.6400, 119.9300),
-        ("2019-04-05", 119.3900, 120.2300, 119.3700, 119.8900),
-        ("2019-04-04", 120.1000, 120.2300, 118.3800, 119.3600),
-        ("2019-04-03", 119.8600, 120.4300, 119.1500, 119.9700),
-        ("2019-04-02", 119.0600, 119.4800, 118.5200, 119.1900),
-        ("2019-04-01", 118.9500, 119.1085, 118.1000, 119.0200),
-        ("2019-03-29", 118.0700, 118.3200, 116.9600, 117.9400),
-        ("2019-03-28", 117.4400, 117.5800, 116.1300, 116.9300),
-        ("2019-03-27", 117.8750, 118.2100, 115.5215, 116.7700),
-        ("2019-03-26", 118.6200, 118.7050, 116.8500, 117.9100),
-        ("2019-03-25", 116.5600, 118.0100, 116.3224, 117.6600),
-        ("2019-03-22", 119.5000, 119.5900, 117.0400, 117.0500),
-        ("2019-03-21", 117.1350, 120.8200, 117.0900, 120.2200),
-        ("2019-03-20", 117.3900, 118.7500, 116.7100, 117.5200),
-        ("2019-03-19", 118.0900, 118.4400, 116.9900, 117.6500),
-        ("2019-03-18", 116.1700, 117.6100, 116.0500, 117.5700),
-        ("2019-03-15", 115.3400, 117.2500, 114.5900, 115.9100),
-        ("2019-03-14", 114.5400, 115.2000, 114.3300, 114.5900),
-    ];
+    vec![
+        ("2019-04-25", 130.06, 131.37, 128.83, 129.15),
+        ("2019-04-24", 125.79, 125.85, 124.52, 125.01),
+        ("2019-04-23", 124.1, 125.58, 123.83, 125.44),
+        ("2019-04-22", 122.62, 124.0000, 122.57, 123.76),
+        ("2019-04-18", 122.19, 123.52, 121.3018, 123.37),
+        ("2019-04-17", 121.24, 121.85, 120.54, 121.77),
+        ("2019-04-16", 121.64, 121.65, 120.1, 120.77),
+        ("2019-04-15", 120.94, 121.58, 120.57, 121.05),
+        ("2019-04-12", 120.64, 120.98, 120.37, 120.95),
+        ("2019-04-11", 120.54, 120.85, 119.92, 120.33),
+        ("2019-04-10", 119.76, 120.35, 119.54, 120.19),
+        ("2019-04-09", 118.63, 119.54, 118.58, 119.28),
+        ("2019-04-08", 119.81, 120.02, 118.64, 119.93),
+        ("2019-04-05", 119.39, 120.23, 119.37, 119.89),
+        ("2019-04-04", 120.1, 120.23, 118.38, 119.36),
+        ("2019-04-03", 119.86, 120.43, 119.15, 119.97),
+        ("2019-04-02", 119.06, 119.48, 118.52, 119.19),
+        ("2019-04-01", 118.95, 119.1085, 118.1, 119.02),
+        ("2019-03-29", 118.07, 118.32, 116.96, 117.94),
+        ("2019-03-28", 117.44, 117.58, 116.13, 116.93),
+        ("2019-03-27", 117.875, 118.21, 115.5215, 116.77),
+        ("2019-03-26", 118.62, 118.705, 116.85, 117.91),
+        ("2019-03-25", 116.56, 118.01, 116.3224, 117.66),
+        ("2019-03-22", 119.5, 119.59, 117.04, 117.05),
+        ("2019-03-21", 117.135, 120.82, 117.09, 120.22),
+        ("2019-03-20", 117.39, 118.75, 116.71, 117.52),
+        ("2019-03-19", 118.09, 118.44, 116.99, 117.65),
+        ("2019-03-18", 116.17, 117.61, 116.05, 117.57),
+        ("2019-03-15", 115.34, 117.25, 114.59, 115.91),
+        ("2019-03-14", 114.54, 115.2, 114.33, 114.59),
+    ]
 }
 #[test]
 fn entry_point() {