barchart.rs at 59ae65c ⋅ milliams/plotlib

/*!

Bar chart

# Examples

```
# use plotlib::repr::BarChart;
# use plotlib::view::CategoricalView;
let b1 = BarChart::new(5.2).label("b1");
let b2 = BarChart::new(1.6).label("b2");
let v = CategoricalView::new().add(b1).add(b2);
```
*/

use std::f64;

use svg;

use crate::axis;
use crate::repr::CategoricalRepresentation;
use crate::style::BoxStyle;
use crate::svg_render;

pub struct BarChart {
    value: f64,
    label: String,
    style: BoxStyle,
}

impl BarChart {
    pub fn new(v: f64) -> Self {
        BarChart {
            value: v,
            style: BoxStyle::new(),
            label: String::new(),
        }
    }

    pub fn style(mut self, style: &BoxStyle) -> Self {
        self.style.overlay(style);
        self
    }

    pub fn get_style(&self) -> &BoxStyle {
        &self.style
    }

    pub fn label<T>(mut self, label: T) -> Self
    where
        T: Into<String>,
    {
        self.label = label.into();
        self
    }

    pub fn get_label(&self) -> &String {
        &self.label
    }

    fn get_value(&self) -> f64 {
        self.value
    }
}

impl CategoricalRepresentation for BarChart {
    /// The maximum range. Used for auto-scaling axis
    fn range(&self) -> (f64, f64) {
        (0.0, self.value)
    }

    /// The ticks that this representation covers. Used to collect all ticks for display
    fn ticks(&self) -> Vec<String> {
        vec![self.label.clone()]
    }

    fn to_svg(
        &self,
        x_axis: &axis::CategoricalAxis,
        y_axis: &axis::ContinuousAxis,
        face_width: f64,
        face_height: f64,
    ) -> svg::node::element::Group {
        svg_render::draw_face_barchart(
            self.get_value(),
            &self.label,
            x_axis,
            y_axis,
            face_width,
            face_height,
            &self.style,
        )
    }

    fn to_text(
        &self,
        _x_axis: &axis::CategoricalAxis,
        _y_axis: &axis::ContinuousAxis,
        _face_width: u32,
        _face_height: u32,
    ) -> String {
        "".into()
    }
}

Read our documentation on viewing source code .

1		/*!
2
3		Bar chart
4
5		# Examples
6
7		```
8		# use plotlib::repr::BarChart;
9		# use plotlib::view::CategoricalView;
10		let b1 = BarChart::new(5.2).label("b1");
11		let b2 = BarChart::new(1.6).label("b2");
12		let v = CategoricalView::new().add(b1).add(b2);
13		```
14		*/
15
16		use std::f64;
17
18		use svg;
19
20		use crate::axis;
21		use crate::repr::CategoricalRepresentation;
22		use crate::style::BoxStyle;
23		use crate::svg_render;
24
25		pub struct BarChart {
26		value: f64,
27		label: String,
28		style: BoxStyle,
29		}
30
31		impl BarChart {
32	0	pub fn new(v: f64) -> Self {
33		BarChart {
34		value: v,
35	0	style: BoxStyle::new(),
36	0	label: String::new(),
37		}
38		}
39
40	0	pub fn style(mut self, style: &BoxStyle) -> Self {
41	0	self.style.overlay(style);
42	0	self
43		}
44
45	0	pub fn get_style(&self) -> &BoxStyle {
46	0	&self.style
47		}
48
49		pub fn label<T>(mut self, label: T) -> Self
50		where
51		T: Into<String>,
52		{
53	0	self.label = label.into();
54	0	self
55		}
56
57	0	pub fn get_label(&self) -> &String {
58	0	&self.label
59		}
60
61	0	fn get_value(&self) -> f64 {
62	0	self.value
63		}
64		}
65
66		impl CategoricalRepresentation for BarChart {
67		/// The maximum range. Used for auto-scaling axis
68	0	fn range(&self) -> (f64, f64) {
69	0	(0.0, self.value)
70		}
71
72		/// The ticks that this representation covers. Used to collect all ticks for display
73	0	fn ticks(&self) -> Vec<String> {
74	0	vec![self.label.clone()]
75		}
76
77	0	fn to_svg(
78		&self,
79		x_axis: &axis::CategoricalAxis,
80		y_axis: &axis::ContinuousAxis,
81		face_width: f64,
82		face_height: f64,
83		) -> svg::node::element::Group {
84		svg_render::draw_face_barchart(
85	0	self.get_value(),
86	0	&self.label,
87	0	x_axis,
88	0	y_axis,
89	0	face_width,
90	0	face_height,
91	0	&self.style,
92		)
93		}
94
95	0	fn to_text(
96		&self,
97		_x_axis: &axis::CategoricalAxis,
98		_y_axis: &axis::ContinuousAxis,
99		_face_width: u32,
100		_face_height: u32,
101		) -> String {
102	0	"".into()
103		}
104		}

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