Struct audio_processor_testing_helpers::charts::ChartBuilder

pub struct ChartBuilder<'a, 'b, DB>where
    DB: DrawingBackend,{ /* private fields */ }

The helper object to create a chart context, which is used for the high-level figure drawing.

With the help of this object, we can convert a basic drawing area into a chart context, which allows the high-level charting API being used on the drawing area.

See ChartBuilder::on() for more information and examples.

Implementations

impl<'a, 'b, DB> ChartBuilder<'a, 'b, DB>where
    DB: DrawingBackend,

pub fn on(root: &'a DrawingArea<DB, Shift>) -> ChartBuilder<'a, 'b, DB>

Create a chart builder on the given drawing area

• root: The root drawing area
• Returns: The chart builder object

Example

use plotters::prelude::*;
let drawing_area = SVGBackend::new("chart_builder_on.svg", (300, 200)).into_drawing_area();
drawing_area.fill(&WHITE).unwrap();
let mut chart_builder = ChartBuilder::on(&drawing_area);
chart_builder.margin(5).set_left_and_bottom_label_area_size(35)
.caption("Figure title or caption", ("Calibri", 20, FontStyle::Italic, &RED).into_text_style(&drawing_area));
let mut chart_context = chart_builder.build_cartesian_2d(0.0..3.8, 0.0..2.8).unwrap();
chart_context.configure_mesh().draw().unwrap();

The result is a chart with customized margins, label area sizes, and title:

pub fn margin<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the four margins of the chart.

• size: The desired size of the four chart margins in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn margin_top<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the top margin of the chart.

• size: The desired size of the margin in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn margin_bottom<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the bottom margin of the chart.

• size: The desired size of the margin in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn margin_left<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the left margin of the chart.

• size: The desired size of the margin in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn margin_right<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the right margin of the chart.

• size: The desired size of the margin in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn set_all_label_area_size<S>(
    &mut self,
    size: S
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the four label areas of the chart.

• size: The desired size of the four label areas in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn set_left_and_bottom_label_area_size<S>(
    &mut self,
    size: S
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the left and bottom label areas of the chart.

• size: The desired size of the left and bottom label areas in backend units (pixels).

See ChartBuilder::on() for more information and examples.

pub fn x_label_area_size<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the X label area at the bottom of the chart.

• size: The desired size of the X label area in backend units (pixels). If set to 0, the X label area is removed.

See ChartBuilder::on() for more information and examples.

pub fn y_label_area_size<S>(&mut self, size: S) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the Y label area to the left of the chart.

• size: The desired size of the Y label area in backend units (pixels). If set to 0, the Y label area is removed.

See ChartBuilder::on() for more information and examples.

pub fn top_x_label_area_size<S>(
    &mut self,
    size: S
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the X label area at the top of the chart.

• size: The desired size of the top X label area in backend units (pixels). If set to 0, the top X label area is removed.

See ChartBuilder::on() for more information and examples.

pub fn right_y_label_area_size<S>(
    &mut self,
    size: S
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of the Y label area to the right of the chart.

• size: The desired size of the Y label area in backend units (pixels). If set to 0, the Y label area to the right is removed.

See ChartBuilder::on() for more information and examples.

pub fn set_label_area_size<S>(
    &mut self,
    pos: LabelAreaPosition,
    size: S
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: SizeDesc,

Sets the size of a chart label area.

• pos: The position of the desired label area to adjust
• size: The desired size of the label area in backend units (pixels). If set to 0, the label area is removed.

See ChartBuilder::on() for more information and examples.

pub fn caption<S, Style>(
    &mut self,
    caption: S,
    style: Style
) -> &mut ChartBuilder<'a, 'b, DB>where
    S: AsRef<str>,
    Style: IntoTextStyle<'b>,

Sets the title or caption of the chart.

• caption: The caption of the chart
• style: The text style

The title or caption will be centered at the top of the drawing area.

See ChartBuilder::on() for more information and examples.

pub fn build_ranged<X, Y>(
    &mut self,
    x_spec: X,
    y_spec: Y
) -> Result<ChartContext<'a, DB, Cartesian2d<<X as AsRangedCoord>::CoordDescType, <Y as AsRangedCoord>::CoordDescType>>, DrawingAreaErrorKind<<DB as DrawingBackend>::ErrorType>>where
    X: AsRangedCoord,
    Y: AsRangedCoord,

👎Deprecated: build_ranged has been renamed to build_cartesian_2d and is to be removed in the future.

This function has been renamed to ChartBuilder::build_cartesian_2d() and is to be removed in the future.

pub fn build_cartesian_2d<X, Y>(
    &mut self,
    x_spec: X,
    y_spec: Y
) -> Result<ChartContext<'a, DB, Cartesian2d<<X as AsRangedCoord>::CoordDescType, <Y as AsRangedCoord>::CoordDescType>>, DrawingAreaErrorKind<<DB as DrawingBackend>::ErrorType>>where
    X: AsRangedCoord,
    Y: AsRangedCoord,

Builds a chart with a 2D Cartesian coordinate system.

• x_spec: Specifies the X axis range and data properties
• y_spec: Specifies the Y axis range and data properties
• Returns: A ChartContext object, ready to visualize data.

See ChartBuilder::on() and ChartContext::configure_mesh() for more information and examples.

pub fn build_cartesian_3d<X, Y, Z>(
    &mut self,
    x_spec: X,
    y_spec: Y,
    z_spec: Z
) -> Result<ChartContext<'a, DB, Cartesian3d<<X as AsRangedCoord>::CoordDescType, <Y as AsRangedCoord>::CoordDescType, <Z as AsRangedCoord>::CoordDescType>>, DrawingAreaErrorKind<<DB as DrawingBackend>::ErrorType>>where
    X: AsRangedCoord,
    Y: AsRangedCoord,
    Z: AsRangedCoord,

Builds a chart with a 3D Cartesian coordinate system.

• x_spec: Specifies the X axis range and data properties
• y_spec: Specifies the Y axis range and data properties
• z_sepc: Specifies the Z axis range and data properties
• Returns: A ChartContext object, ready to visualize data.

See ChartBuilder::on() and ChartContext::configure_axes() for more information and examples.