Struct AxisLength 

#[repr(transparent)]
pub struct AxisLength(pub Float32);

Component: The length of an axis in local units of the space.

Tuple Fields

0: Float32

Methods from Deref<Target = f32>

pub const RADIX: u32 = 2

pub const BITS: u32 = 32

pub const MANTISSA_DIGITS: u32 = 24

pub const DIGITS: u32 = 6

pub const EPSILON: f32 = 1.19209290e-07_f32

pub const MIN: f32 = -3.40282347e+38_f32

pub const MIN_POSITIVE: f32 = 1.17549435e-38_f32

pub const MAX: f32 = 3.40282347e+38_f32

pub const MIN_EXP: i32 = -125

pub const MAX_EXP: i32 = 128

pub const MIN_10_EXP: i32 = -37

pub const MAX_10_EXP: i32 = 38

pub const NAN: f32

pub const INFINITY: f32

pub const NEG_INFINITY: f32

pub const MAX_EXACT_INTEGER: i32

pub const MIN_EXACT_INTEGER: i32

pub fn total_cmp(&self, other: &f32) -> Ordering

Returns the ordering between self and other.

Unlike the standard partial comparison between floating point numbers, this comparison always produces an ordering in accordance to the totalOrder predicate as defined in the IEEE 754 (2008 revision) floating point standard. The values are ordered in the following sequence:

• negative quiet NaN
• negative signaling NaN
• negative infinity
• negative numbers
• negative subnormal numbers
• negative zero
• positive zero
• positive subnormal numbers
• positive numbers
• positive infinity
• positive signaling NaN
• positive quiet NaN.

The ordering established by this function does not always agree with the PartialOrd and PartialEq implementations of f32. For example, they consider negative and positive zero equal, while total_cmp doesn’t.

The interpretation of the signaling NaN bit follows the definition in the IEEE 754 standard, which may not match the interpretation by some of the older, non-conformant (e.g. MIPS) hardware implementations.

Example

struct GoodBoy {
    name: String,
    weight: f32,
}

let mut bois = vec![
    GoodBoy { name: "Pucci".to_owned(), weight: 0.1 },
    GoodBoy { name: "Woofer".to_owned(), weight: 99.0 },
    GoodBoy { name: "Yapper".to_owned(), weight: 10.0 },
    GoodBoy { name: "Chonk".to_owned(), weight: f32::INFINITY },
    GoodBoy { name: "Abs. Unit".to_owned(), weight: f32::NAN },
    GoodBoy { name: "Floaty".to_owned(), weight: -5.0 },
];

bois.sort_by(|a, b| a.weight.total_cmp(&b.weight));

// `f32::NAN` could be positive or negative, which will affect the sort order.
if f32::NAN.is_sign_negative() {
    assert!(bois.into_iter().map(|b| b.weight)
        .zip([f32::NAN, -5.0, 0.1, 10.0, 99.0, f32::INFINITY].iter())
        .all(|(a, b)| a.to_bits() == b.to_bits()))
} else {
    assert!(bois.into_iter().map(|b| b.weight)
        .zip([-5.0, 0.1, 10.0, 99.0, f32::INFINITY, f32::NAN].iter())
        .all(|(a, b)| a.to_bits() == b.to_bits()))
}

Trait Implementations

impl Borrow<Float32> for AxisLength

fn borrow(&self) -> &Float32

Immutably borrows from an owned value.

impl Clone for AxisLength

fn clone(&self) -> AxisLength

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AxisLength

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

Formats the value using the given formatter.

impl Default for AxisLength

fn default() -> AxisLength

Returns the “default value” for a type.

impl Deref for AxisLength

type Target = Float32

The resulting type after dereferencing.

fn deref(&self) -> &Float32

Dereferences the value.

impl DerefMut for AxisLength

fn deref_mut(&mut self) -> &mut Float32

Mutably dereferences the value.

impl<'a> From<&'a AxisLength> for Cow<'a, AxisLength>

fn from(value: &'a AxisLength) -> Cow<'a, AxisLength>

Converts to this type from the input type.

impl<'a> From<AxisLength> for Cow<'a, AxisLength>

fn from(value: AxisLength) -> Cow<'a, AxisLength>

Converts to this type from the input type.

impl From<AxisLength> for f32

fn from(val: AxisLength) -> f32

Converts to this type from the input type.

impl<T> From<T> for AxisLength

where T: Into<Float32>,

fn from(v: T) -> AxisLength

Converts to this type from the input type.

impl PartialEq for AxisLength

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for AxisLength

fn partial_cmp(&self, other: &AxisLength) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl SizeBytes for AxisLength

fn heap_size_bytes(&self) -> u64

Returns how many bytes self uses on the heap.

fn is_pod() -> bool

Is Self just plain old data?

fn total_size_bytes(&self) -> u64

Returns the total size of self in bytes, accounting for both stack and heap space.

fn stack_size_bytes(&self) -> u64

Returns the total size of self on the stack, in bytes.

impl WrapperComponent for AxisLength

type Datatype = Float32

The underlying Loggable datatype for this component.

fn name() -> ComponentType

The fully-qualified type of this component, e.g. rerun.components.Position2D.

fn into_inner(self) -> <AxisLength as WrapperComponent>::Datatype

Unwraps the component into its underlying datatype.

impl Copy for AxisLength

impl StructuralPartialEq for AxisLength