| //! Spline control points. |
| //! |
| //! A control point associates to a “sampling value” (a.k.a. time) a carriede value that can be |
| //! interpolated along the curve made by the control points. |
| //! |
| //! Splines constructed with this crate have the property that it’s possible to change the |
| //! interpolation mode on a key-based way, allowing you to implement and encode complex curves. |
| |
| #[cfg(feature = "serialization")] use serde_derive::{Deserialize, Serialize}; |
| |
| use crate::interpolation::Interpolation; |
| |
| /// A spline control point. |
| /// |
| /// This type associates a value at a given interpolation parameter value. It also contains an |
| /// interpolation mode used to determine how to interpolate values on the segment defined by this |
| /// key and the next one – if existing. Have a look at [`Interpolation`] for further details. |
| /// |
| /// [`Interpolation`]: crate::interpolation::Interpolation |
| #[derive(Copy, Clone, Debug, Eq, PartialEq)] |
| #[cfg_attr(feature = "serialization", derive(Deserialize, Serialize))] |
| #[cfg_attr(feature = "serialization", serde(rename_all = "snake_case"))] |
| pub struct Key<T, V> { |
| /// Interpolation parameter at which the [`Key`] should be reached. |
| pub t: T, |
| /// Carried value. |
| pub value: V, |
| /// Interpolation mode. |
| pub interpolation: Interpolation<T, V> |
| } |
| |
| impl<T, V> Key<T, V> { |
| /// Create a new key. |
| pub fn new(t: T, value: V, interpolation: Interpolation<T, V>) -> Self { |
| Key { t, value, interpolation } |
| } |
| } |