Enum ValueFormat 

pub enum ValueFormat {
    Compact,
    Fixed(usize),
}

How a chart writes values on axes, bars and summaries.

use rich_ext::chart::ValueFormat;

assert_eq!(ValueFormat::Compact.format(1_234.0), "1.2k");
assert_eq!(ValueFormat::Compact.format(3_400_000.0), "3.4M");
assert_eq!(ValueFormat::Compact.format(0.25), "0.25");
assert_eq!(ValueFormat::Fixed(1).format(2.0), "2.0");

Variants

Compact

Short forms: 950, 0.25, 12.5, then 1.2k, 3.4M, 5.0B (format::compact from a thousand up, at most two decimals below), and 1.0e15 from a thousand trillion. A chart axis or histogram whose round values this cannot write exactly (2015 would read 2.0k) writes them in full instead.

Fixed(usize)

A fixed number of decimals: Fixed(2) writes 3.14. At most MAX_DECIMALS are written; more are capped.

Implementations

impl ValueFormat

pub const MAX_DECIMALS: usize = 17

The most decimals Fixed writes: an f64 holds at most 17 significant digits.

pub fn format(self, value: f64) -> String

value in this format. NaN and infinities are written -.

Trait Implementations

impl Clone for ValueFormat

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ValueFormat

impl Debug for ValueFormat

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ValueFormat

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ValueFormat

impl Hash for ValueFormat

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ValueFormat

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ValueFormat