1 use plotters::prelude::*;
2
3 use chrono::{TimeZone, Utc};
4
5 use std::error::Error;
6
main() -> Result<(), Box<dyn Error>>7 fn main() -> Result<(), Box<dyn Error>> {
8 let root =
9 BitMapBackend::new("plotters-doc-data/slc-temp.png", (1024, 768)).into_drawing_area();
10
11 root.fill(&WHITE)?;
12
13 let mut chart = ChartBuilder::on(&root)
14 .margin(10)
15 .caption(
16 "Monthly Average Temperate in Salt Lake City, UT",
17 ("sans-serif", 40),
18 )
19 .set_label_area_size(LabelAreaPosition::Left, 60)
20 .set_label_area_size(LabelAreaPosition::Right, 60)
21 .set_label_area_size(LabelAreaPosition::Bottom, 40)
22 .build_cartesian_2d(
23 (Utc.ymd(2010, 1, 1)..Utc.ymd(2018, 12, 1)).monthly(),
24 14.0..104.0,
25 )?
26 .set_secondary_coord(
27 (Utc.ymd(2010, 1, 1)..Utc.ymd(2018, 12, 1)).monthly(),
28 -10.0..40.0,
29 );
30
31 chart
32 .configure_mesh()
33 .disable_x_mesh()
34 .disable_y_mesh()
35 .x_labels(30)
36 .y_desc("Average Temp (F)")
37 .draw()?;
38 chart
39 .configure_secondary_axes()
40 .y_desc("Average Temp (C)")
41 .draw()?;
42
43 chart.draw_series(LineSeries::new(
44 DATA.iter().map(|(y, m, t)| (Utc.ymd(*y, *m, 1), *t)),
45 &BLUE,
46 ))?;
47
48 chart.draw_series(
49 DATA.iter()
50 .map(|(y, m, t)| Circle::new((Utc.ymd(*y, *m, 1), *t), 3, BLUE.filled())),
51 )?;
52
53 Ok(())
54 }
55
56 const DATA: [(i32, u32, f64); 12 * 9] = [
57 (2010, 1, 32.4),
58 (2010, 2, 37.5),
59 (2010, 3, 44.5),
60 (2010, 4, 50.3),
61 (2010, 5, 55.0),
62 (2010, 6, 70.0),
63 (2010, 7, 78.7),
64 (2010, 8, 76.5),
65 (2010, 9, 68.9),
66 (2010, 10, 56.3),
67 (2010, 11, 40.3),
68 (2010, 12, 36.5),
69 (2011, 1, 28.8),
70 (2011, 2, 35.1),
71 (2011, 3, 45.5),
72 (2011, 4, 48.9),
73 (2011, 5, 55.1),
74 (2011, 6, 68.8),
75 (2011, 7, 77.9),
76 (2011, 8, 78.4),
77 (2011, 9, 68.2),
78 (2011, 10, 55.0),
79 (2011, 11, 41.5),
80 (2011, 12, 31.0),
81 (2012, 1, 35.6),
82 (2012, 2, 38.1),
83 (2012, 3, 49.1),
84 (2012, 4, 56.1),
85 (2012, 5, 63.4),
86 (2012, 6, 73.0),
87 (2012, 7, 79.0),
88 (2012, 8, 79.0),
89 (2012, 9, 68.8),
90 (2012, 10, 54.9),
91 (2012, 11, 45.2),
92 (2012, 12, 34.9),
93 (2013, 1, 19.7),
94 (2013, 2, 31.1),
95 (2013, 3, 46.2),
96 (2013, 4, 49.8),
97 (2013, 5, 61.3),
98 (2013, 6, 73.3),
99 (2013, 7, 80.3),
100 (2013, 8, 77.2),
101 (2013, 9, 68.3),
102 (2013, 10, 52.0),
103 (2013, 11, 43.2),
104 (2013, 12, 25.7),
105 (2014, 1, 31.5),
106 (2014, 2, 39.3),
107 (2014, 3, 46.4),
108 (2014, 4, 52.5),
109 (2014, 5, 63.0),
110 (2014, 6, 71.3),
111 (2014, 7, 81.0),
112 (2014, 8, 75.3),
113 (2014, 9, 70.0),
114 (2014, 10, 58.6),
115 (2014, 11, 42.1),
116 (2014, 12, 38.0),
117 (2015, 1, 35.3),
118 (2015, 2, 45.2),
119 (2015, 3, 50.9),
120 (2015, 4, 54.3),
121 (2015, 5, 60.5),
122 (2015, 6, 77.1),
123 (2015, 7, 76.2),
124 (2015, 8, 77.3),
125 (2015, 9, 70.4),
126 (2015, 10, 60.6),
127 (2015, 11, 40.9),
128 (2015, 12, 32.4),
129 (2016, 1, 31.5),
130 (2016, 2, 35.1),
131 (2016, 3, 49.1),
132 (2016, 4, 55.1),
133 (2016, 5, 60.9),
134 (2016, 6, 76.9),
135 (2016, 7, 80.0),
136 (2016, 8, 77.0),
137 (2016, 9, 67.1),
138 (2016, 10, 59.1),
139 (2016, 11, 47.4),
140 (2016, 12, 31.8),
141 (2017, 1, 29.4),
142 (2017, 2, 42.4),
143 (2017, 3, 51.7),
144 (2017, 4, 51.7),
145 (2017, 5, 62.5),
146 (2017, 6, 74.8),
147 (2017, 7, 81.3),
148 (2017, 8, 78.1),
149 (2017, 9, 65.7),
150 (2017, 10, 52.5),
151 (2017, 11, 49.0),
152 (2017, 12, 34.4),
153 (2018, 1, 38.1),
154 (2018, 2, 37.5),
155 (2018, 3, 45.4),
156 (2018, 4, 54.6),
157 (2018, 5, 64.0),
158 (2018, 6, 74.9),
159 (2018, 7, 82.5),
160 (2018, 8, 78.1),
161 (2018, 9, 71.9),
162 (2018, 10, 53.2),
163 (2018, 11, 39.7),
164 (2018, 12, 33.6),
165 ];
166 #[test]
entry_point()167 fn entry_point() {
168 main().unwrap()
169 }
170
