Struct bevy::math::cubic_splines::LinearSpline

pub struct LinearSpline<P>
where P: VectorSpace,
{ pub points: Vec<P>, }
Expand description

A spline interpolated linearly between the nearest 2 points.

§Interpolation

The curve passes through every control point.

§Tangency

The curve is not generally differentiable at control points.

§Continuity

The curve is C0 continuous, meaning it has no holes or jumps.

Fields§

§points: Vec<P>

The control points of the NURBS

Implementations§

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impl<P> LinearSpline<P>
where P: VectorSpace,

pub fn new(points: impl Into<Vec<P>>) -> LinearSpline<P>

Create a new linear spline

Examples found in repository?
examples/3d/auto_exposure.rs (lines 62-67)
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fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
    mut compensation_curves: ResMut<Assets<AutoExposureCompensationCurve>>,
    asset_server: Res<AssetServer>,
) {
    let metering_mask = asset_server.load("textures/basic_metering_mask.png");

    commands.spawn((
        Camera3dBundle {
            camera: Camera {
                hdr: true,
                ..default()
            },
            transform: Transform::from_xyz(1.0, 0.0, 0.0).looking_at(Vec3::ZERO, Vec3::Y),
            ..default()
        },
        AutoExposureSettings {
            metering_mask: metering_mask.clone(),
            ..default()
        },
        Skybox {
            image: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
            brightness: bevy::pbr::light_consts::lux::DIRECT_SUNLIGHT,
        },
    ));

    commands.insert_resource(ExampleResources {
        basic_compensation_curve: compensation_curves.add(
            AutoExposureCompensationCurve::from_curve(LinearSpline::new([
                vec2(-4.0, -2.0),
                vec2(0.0, 0.0),
                vec2(2.0, 0.0),
                vec2(4.0, 2.0),
            ]))
            .unwrap(),
        ),
        basic_metering_mask: metering_mask.clone(),
    });

    let plane = meshes.add(Mesh::from(
        Plane3d {
            normal: -Dir3::Z,
            half_size: Vec2::new(2.0, 0.5),
        }
        .mesh(),
    ));

    // Build a dimly lit box around the camera, with a slot to see the bright skybox.
    for level in -1..=1 {
        for side in [-Vec3::X, Vec3::X, -Vec3::Z, Vec3::Z] {
            if level == 0 && Vec3::Z == side {
                continue;
            }

            let height = Vec3::Y * level as f32;

            commands.spawn(PbrBundle {
                mesh: plane.clone(),
                material: materials.add(StandardMaterial {
                    base_color: Color::srgb(
                        0.5 + side.x * 0.5,
                        0.75 - level as f32 * 0.25,
                        0.5 + side.z * 0.5,
                    ),
                    ..default()
                }),
                transform: Transform::from_translation(side * 2.0 + height)
                    .looking_at(height, Vec3::Y),
                ..default()
            });
        }
    }

    commands.insert_resource(AmbientLight {
        color: Color::WHITE,
        brightness: 0.0,
    });

    commands.spawn(PointLightBundle {
        point_light: PointLight {
            intensity: 2000.0,
            ..default()
        },
        transform: Transform::from_xyz(0.0, 0.0, 0.0),
        ..default()
    });

    commands.spawn(ImageBundle {
        image: UiImage {
            texture: metering_mask,
            ..default()
        },
        style: Style {
            width: Val::Percent(100.0),
            height: Val::Percent(100.0),
            ..default()
        },
        ..default()
    });

    let text_style = TextStyle::default();

    commands.spawn(
        TextBundle::from_section(
            "Left / Right - Rotate Camera\nC - Toggle Compensation Curve\nM - Toggle Metering Mask\nV - Visualize Metering Mask",
            text_style.clone(),
        )
        .with_style(Style {
            position_type: PositionType::Absolute,
            top: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
    );

    commands.spawn((
        TextBundle::from_section("", text_style).with_style(Style {
            position_type: PositionType::Absolute,
            top: Val::Px(10.0),
            right: Val::Px(10.0),
            ..default()
        }),
        ExampleDisplay,
    ));
}

Trait Implementations§

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impl<P> Clone for LinearSpline<P>
where P: Clone + VectorSpace,

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

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl<P> CubicGenerator<P> for LinearSpline<P>
where P: VectorSpace,

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fn to_curve(&self) -> CubicCurve<P>

Build a CubicCurve by computing the interpolation coefficients for each curve segment.
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impl<P> Debug for LinearSpline<P>
where P: Debug + VectorSpace,

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

Formats the value using the given formatter. Read more
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impl<P> FromReflect for LinearSpline<P>
where P: VectorSpace + TypePath, LinearSpline<P>: Any + Send + Sync, Vec<P>: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<LinearSpline<P>>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect>, ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl<P> GetTypeRegistration for LinearSpline<P>
where P: VectorSpace + TypePath, LinearSpline<P>: Any + Send + Sync, Vec<P>: FromReflect + TypePath + RegisterForReflection,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl<P> Reflect for LinearSpline<P>
where P: VectorSpace + TypePath, LinearSpline<P>: Any + Send + Sync, Vec<P>: FromReflect + TypePath + RegisterForReflection,

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fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<LinearSpline<P>>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<LinearSpline<P>>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn try_apply( &mut self, value: &(dyn Reflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<LinearSpline<P>>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl<P> Struct for LinearSpline<P>
where P: VectorSpace + TypePath, LinearSpline<P>: Any + Send + Sync, Vec<P>: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl<P> TypePath for LinearSpline<P>

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl<P> Typed for LinearSpline<P>
where P: VectorSpace + TypePath, LinearSpline<P>: Any + Send + Sync, Vec<P>: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

Auto Trait Implementations§

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impl<P> Freeze for LinearSpline<P>

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

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

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

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

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

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where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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fn downcast(&self) -> &T

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impl<T> Downcast for T
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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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where T: TypePath,

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Returns the argument unchanged.

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where T: Reflect,

Returns a reference to the value of the field named name, downcast to T.
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where T: Reflect,

Returns a mutable reference to the value of the field named name, downcast to T.
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Returns a reference to the value specified by path. Read more
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Returns a statically typed reference to the value specified by path. Read more
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