pub fn new(
        center: &'a (i32, i32),
        radius: &'a f64,
        sizes: &'a [f64],
        colors: &'a [RGBColor],
        labels: &'a [Label],
    ) -> Self {
        // fold iterator to pre-calculate total from given slice sizes
        let total = sizes.iter().sum();

        // default label style and offset as 5% of the radius
        let radius_5pct = radius * 0.05;

        // strong assumption that the background is white for legibility.
        let label_style = TextStyle::from(("sans-serif", radius_5pct).into_font()).color(&BLACK);
        Self {
            center,
            radius,
            sizes,
            colors,
            labels,
            total,
            start_radian: 0.0,
            label_style,
            label_offset: radius_5pct,
            percentage_style: None,
        }
    }
/// Build a Pie object.
/// Assumes a start angle at 0.0, which is aligned to the horizontal axis.
Build a Pie object.
Assumes a start angle at 0.0, which is aligned to the horizontal axis.
Build a Pie object . Assumes a start angle at 0 . 0 which is aligned to the horizontal axis .
pub fn new(
        center: &'a (i32, i32),
        radius: &'a f64,
        sizes: &'a [f64],
        colors: &'a [RGBColor],
        labels: &'a [Label],
    ) -> Self {
        // fold iterator to pre-calculate total from given slice sizes
        let total = sizes.iter().sum();
        // default label style and offset as 5% of the radius
        let radius_5pct = radius * 0.05;
        // strong assumption that the background is white for legibility.
        let label_style = TextStyle::from(("sans-serif", radius_5pct).into_font()).color(&BLACK);
        Self {
            center,
            radius,
            sizes,
            colors,
            labels,
            total,
            start_radian: 0.0,
            label_style,
            label_offset: radius_5pct,
            percentage_style: None,
        }
    }
pub fn new ( center : & ' a ( i32 , i32 ) , radius : & ' a f64 , sizes : & ' a [ f64 ] , colors : & ' a [ RGBColor ] , labels : & ' a [ Label ] , ) -> Self { // fold iterator to pre-calculate total from given slice sizes let total = sizes . iter ( ) . sum ( ) ; // default label style and offset as 5% of the radius let radius_5pct = radius * 0.05 ; // strong assumption that the background is white for legibility. let label_style = TextStyle :: from ( ( " " , radius_5pct ) . into_font ( ) ) . color ( & BLACK ) ; Self { center , radius , sizes , colors , labels , total , start_radian : 0.0 , label_style , label_offset : radius_5pct , percentage_style : None , } }
Build a Pie object.
Build a Pie object .
center
&'a (i32, i32)
radius
&'a f64
sizes
&'a [f64]
colors
&'a [RGBColor]
labels
&'a [Label]