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Weighted

ogeom_math::bspline

Struct Weighted

pub struct Weighted<P> {
    pub scaled: P,
    pub weight: f64,
}

Expand description

A control point carrying a weight, for rational geometry.

Stored in homogeneous form (the point is already multiplied through by the weight) because that is the form every algorithm needs, and converting on each access would be both slower and a source of drift.

Fields§

§scaled: P

The point scaled by the weight.

§weight: f64

The weight.

Implementations§

impl<P: Blend> Weighted<P>

pub fn new(point: P, weight: f64, tol: Tolerances) -> OgeomResult<Self>

A weighted control point from a position and a weight.

§Errors

OgeomError::Construction if the weight is not finite and positive. A zero weight makes the projection undefined and a negative one makes the curve leave its control polygon’s convex hull, so neither is admitted.

pub fn point(self) -> P

The unweighted position.

Trait Implementations§

impl<P: Blend> Blend for Weighted<P>

fn zero() -> Self

The additive identity.

fn scale(self, k: f64) -> Self

Scale by a factor.

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

Add another value.

fn lerp(self, other: Self, t: f64) -> Self

self * (1 - t) + other * t.

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

Subtract, via scaling by -1.

impl<P: Clone> Clone for Weighted<P>

fn clone(&self) -> Weighted<P>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl<P: Copy> Copy for Weighted<P>

impl<P: Debug> Debug for Weighted<P>

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

Formats the value using the given formatter. Read more

impl<P: PartialEq> PartialEq for Weighted<P>

fn eq(&self, other: &Weighted<P>) -> bool

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

1.0.0 (const: unstable) · Source§

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<P: PartialEq> StructuralPartialEq for Weighted<P>

Auto Trait Implementations§

impl<P> Freeze for Weighted<P>
where P: Freeze,

impl<P> RefUnwindSafe for Weighted<P>
where P: RefUnwindSafe,

impl<P> Send for Weighted<P>
where P: Send,

impl<P> Sync for Weighted<P>
where P: Sync,

impl<P> Unpin for Weighted<P>
where P: Unpin,

impl<P> UnsafeUnpin for Weighted<P>
where P: UnsafeUnpin,

impl<P> UnwindSafe for Weighted<P>
where P: UnwindSafe,

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Same for T

type Output = T

Should always be Self

impl<T> Scalar for T
where T: 'static + Clone + PartialEq + Debug,

impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).

fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.

fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.