Struct DrawOrder 

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

Component: Draw order of 2D elements. Higher values are drawn on top of lower values.

An entity can have only a single draw order component. Within an entity draw order is governed by the order of the components.

Draw order for entities with the same draw order is generally undefined.

Tuple Fields

0: Float32

Implementations

impl DrawOrder

pub const DEFAULT_DEPTH_IMAGE: DrawOrder

Draw order used for depth image when they’re not shown as a 3D point cloud and no draw order was specified.

pub const DEFAULT_VIDEO: DrawOrder

Draw order used for videos (both streams and assets) if no draw order was specified.

pub const DEFAULT_IMAGE: DrawOrder

Draw order used for images if no draw order was specified.

pub const DEFAULT_SEGMENTATION_IMAGE: DrawOrder

Draw order used for segmentation images if no draw order was specified.

pub const DEFAULT_SHAPE_2D: DrawOrder

Draw order used for 2D shapes (boxes, ellipses) if no draw order was specified.

pub const DEFAULT_LINES2D: DrawOrder

Draw order used for 2D lines if no draw order was specified.

pub const DEFAULT_POINTS2D: DrawOrder

Draw order used for 2D points if no draw order was specified.

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 const SIGN_MASK: u32 = 0x8000_0000

pub const EXPONENT_MASK: u32 = 0x7f80_0000

pub const MANTISSA_MASK: u32 = 0x007f_ffff

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 DrawOrder

fn borrow(&self) -> &Float32

Immutably borrows from an owned value.

impl Clone for DrawOrder

fn clone(&self) -> DrawOrder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DrawOrder

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

Formats the value using the given formatter.

impl Default for DrawOrder

fn default() -> DrawOrder

Returns the “default value” for a type.

impl Deref for DrawOrder

type Target = Float32

The resulting type after dereferencing.

fn deref(&self) -> &Float32

Dereferences the value.

impl DerefMut for DrawOrder

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

Mutably dereferences the value.

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

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

Converts to this type from the input type.

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

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

Converts to this type from the input type.

impl<T> From<T> for DrawOrder

where T: Into<Float32>,

fn from(v: T) -> DrawOrder

Converts to this type from the input type.

impl Ord for DrawOrder

fn cmp(&self, other: &DrawOrder) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DrawOrder

fn eq(&self, other: &DrawOrder) -> 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 DrawOrder

fn partial_cmp(&self, other: &DrawOrder) -> 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 DrawOrder

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 DrawOrder

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) -> <DrawOrder as WrapperComponent>::Datatype

Unwraps the component into its underlying datatype.

impl Copy for DrawOrder

impl Eq for DrawOrder