1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*!
# Plotters - Another Plotting Library in Rust
Plotters is a flexible drawing library for data visualization written in pure Rust.
The library isn't aimed supporting different types of plotting, but a generic platform
that can be extended to support different types of visualization methods.
## Quick Start
```rust
use plotters::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut backend = BitMapBackend::new("examples/outputs/0.png", (640,480));
backend.open()?;
let root:DrawingArea<_,_> = backend.into();
let font = Into::<FontDesc>::into("DejaVu Serif").resize(20.0);
root.fill(&RGBColor(255,255,255))?;
let mut chart = ChartBuilder::on(&root)
.caption("y=x^2", &font)
.build_ranged::<RangedCoordf32, RangedCoordf32, _, _>(-1f32..1f32, 0f32..1f32);
chart.configure_mesh()
.draw()?;
chart.draw_series(LineSeries::new(
(-50..=50).map(|x| x as f32 / 50.0).map(|x| (x, x*x)),
&RGBColor(255, 0, 0),
))?;
root.close()?;
return Ok(());
}
```
## Concepts by examples
### Drawing Backends
Plotters can use different drawing backends, such as SVG, BitMap, etc. And even real-time rendering,
such as library. For example a bitmap drawing backend.
```rust
use plotters::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Create a 800*600 bitmap and start drawing
let mut backend = BitMapBackend::new("examples/outputs/1.png", (300,200));
// And if we want SVG backend
// let backend = SVGBackend::new("output.svg", (800, 600));
backend.open()?;
backend.draw_rect((50,50), (200, 150), &RGBColor(255,0,0), true)?;
backend.close()?;
return Ok(());
}
```
And this will produce
### Drawing Area
Plotters use a concept called drawing area for layout purpose.
Plotters support multiple plot integrate in a single image.
This is done by craeting sub drawing areas.
Besides that, drawing area also allows customized cooridnate system, by doing so, the coordinate mapping is done by the drawing area automatically.
```rust
use plotters::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let backend = BitMapBackend::new("examples/outputs/2.png", (300, 200));
// A backend object can be converted into a drawing area
let root_drawing_area:DrawingArea<_,_> = backend.into();
// And we can split the drawing area into 3x3 grid
let child_drawing_areas = root_drawing_area.split_evenly((3,3));
// Then we fill the drawing area with different color
for (area,color) in child_drawing_areas.into_iter().zip(0..) {
area.fill(&Plattle99::pick(color))?;
}
root_drawing_area.close()?;
return Ok(());
}
```
And this will produce
### Elements
In Plotters, elements are build blocks of a image. All elements are able to draw on a drawing area.
There are different types of elements, such as, lines, texts, circles, etc.
You may also combining existing elements to build a complex element.
```rust
use plotters::prelude::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let backend = BitMapBackend::new("examples/outputs/3.png", (300, 200));
// A backend object can be converted into a drawing area
let root:DrawingArea<_,_> = backend.into();
// Draw an circle on the drawing area
root.draw(&Circle::new((100,100), 50, Into::<ShapeStyle>::into(&RGBColor(255, 0, 0)).filled()))?;
root.close()?;
return Ok(());
}
```
And this will produce
### Composable Elements
### Plotting
## Extending Plotters
*/