Struct bevy::math::prelude::RegularPolygon

pub struct RegularPolygon {
    pub circumcircle: Circle,
    pub sides: usize,
}
Expand description

A polygon where all vertices lie on a circle, equally far apart.

Fields§

§circumcircle: Circle

The circumcircle on which all vertices lie

§sides: usize

The number of sides

Implementations§

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impl RegularPolygon

pub fn new(circumradius: f32, sides: usize) -> RegularPolygon

Create a new RegularPolygon from the radius of the circumcircle and a number of sides

§Panics

Panics if circumradius is negative

Examples found in repository?
examples/tools/gamepad_viewer.rs (line 71)
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    fn from_world(world: &mut World) -> Self {
        Self {
            circle: world.add_asset(Circle::new(BUTTON_RADIUS)).into(),
            triangle: world
                .add_asset(RegularPolygon::new(BUTTON_RADIUS, 3))
                .into(),
            start_pause: world.add_asset(Rectangle::from_size(START_SIZE)).into(),
            trigger: world.add_asset(Rectangle::from_size(TRIGGER_SIZE)).into(),
        }
    }
More examples
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examples/2d/2d_shapes.rs (line 34)
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fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<ColorMaterial>>,
) {
    commands.spawn(Camera2dBundle::default());

    let shapes = [
        Mesh2dHandle(meshes.add(Circle { radius: 50.0 })),
        Mesh2dHandle(meshes.add(CircularSector::new(50.0, 1.0))),
        Mesh2dHandle(meshes.add(CircularSegment::new(50.0, 1.25))),
        Mesh2dHandle(meshes.add(Ellipse::new(25.0, 50.0))),
        Mesh2dHandle(meshes.add(Annulus::new(25.0, 50.0))),
        Mesh2dHandle(meshes.add(Capsule2d::new(25.0, 50.0))),
        Mesh2dHandle(meshes.add(Rhombus::new(75.0, 100.0))),
        Mesh2dHandle(meshes.add(Rectangle::new(50.0, 100.0))),
        Mesh2dHandle(meshes.add(RegularPolygon::new(50.0, 6))),
        Mesh2dHandle(meshes.add(Triangle2d::new(
            Vec2::Y * 50.0,
            Vec2::new(-50.0, -50.0),
            Vec2::new(50.0, -50.0),
        ))),
    ];
    let num_shapes = shapes.len();

    for (i, shape) in shapes.into_iter().enumerate() {
        // Distribute colors evenly across the rainbow.
        let color = Color::hsl(360. * i as f32 / num_shapes as f32, 0.95, 0.7);

        commands.spawn(MaterialMesh2dBundle {
            mesh: shape,
            material: materials.add(color),
            transform: Transform::from_xyz(
                // Distribute shapes from -X_EXTENT/2 to +X_EXTENT/2.
                -X_EXTENT / 2. + i as f32 / (num_shapes - 1) as f32 * X_EXTENT,
                0.0,
                0.0,
            ),
            ..default()
        });
    }

    commands.spawn(
        TextBundle::from_section("Press space to toggle wireframes", TextStyle::default())
            .with_style(Style {
                position_type: PositionType::Absolute,
                top: Val::Px(12.0),
                left: Val::Px(12.0),
                ..default()
            }),
    );
}
examples/2d/bloom_2d.rs (line 60)
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fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<ColorMaterial>>,
    asset_server: Res<AssetServer>,
) {
    commands.spawn((
        Camera2dBundle {
            camera: Camera {
                hdr: true, // 1. HDR is required for bloom
                ..default()
            },
            tonemapping: Tonemapping::TonyMcMapface, // 2. Using a tonemapper that desaturates to white is recommended
            ..default()
        },
        BloomSettings::default(), // 3. Enable bloom for the camera
    ));

    // Sprite
    commands.spawn(SpriteBundle {
        texture: asset_server.load("branding/bevy_bird_dark.png"),
        sprite: Sprite {
            color: Color::srgb(5.0, 5.0, 5.0), // 4. Put something bright in a dark environment to see the effect
            custom_size: Some(Vec2::splat(160.0)),
            ..default()
        },
        ..default()
    });

    // Circle mesh
    commands.spawn(MaterialMesh2dBundle {
        mesh: meshes.add(Circle::new(100.)).into(),
        // 4. Put something bright in a dark environment to see the effect
        material: materials.add(Color::srgb(7.5, 0.0, 7.5)),
        transform: Transform::from_translation(Vec3::new(-200., 0., 0.)),
        ..default()
    });

    // Hexagon mesh
    commands.spawn(MaterialMesh2dBundle {
        mesh: meshes.add(RegularPolygon::new(100., 6)).into(),
        // 4. Put something bright in a dark environment to see the effect
        material: materials.add(Color::srgb(6.25, 9.4, 9.1)),
        transform: Transform::from_translation(Vec3::new(200., 0., 0.)),
        ..default()
    });

    // UI
    commands.spawn(
        TextBundle::from_section("", TextStyle::default()).with_style(Style {
            position_type: PositionType::Absolute,
            bottom: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
    );
}
examples/2d/bounding_2d.rs (line 263)
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fn setup(mut commands: Commands) {
    commands.spawn(Camera2dBundle::default());
    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(-OFFSET_X, OFFSET_Y, 0.),
            ..default()
        },
        Shape::Circle(Circle::new(45.)),
        DesiredVolume::Aabb,
        Intersects::default(),
    ));

    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(0., OFFSET_Y, 0.),
            ..default()
        },
        Shape::Rectangle(Rectangle::new(80., 80.)),
        Spin,
        DesiredVolume::Circle,
        Intersects::default(),
    ));

    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(OFFSET_X, OFFSET_Y, 0.),
            ..default()
        },
        Shape::Triangle(Triangle2d::new(
            Vec2::new(-40., -40.),
            Vec2::new(-20., 40.),
            Vec2::new(40., 50.),
        )),
        Spin,
        DesiredVolume::Aabb,
        Intersects::default(),
    ));

    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(-OFFSET_X, -OFFSET_Y, 0.),
            ..default()
        },
        Shape::Line(Segment2d::new(Dir2::from_xy(1., 0.3).unwrap(), 90.)),
        Spin,
        DesiredVolume::Circle,
        Intersects::default(),
    ));

    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(0., -OFFSET_Y, 0.),
            ..default()
        },
        Shape::Capsule(Capsule2d::new(25., 50.)),
        Spin,
        DesiredVolume::Aabb,
        Intersects::default(),
    ));

    commands.spawn((
        SpatialBundle {
            transform: Transform::from_xyz(OFFSET_X, -OFFSET_Y, 0.),
            ..default()
        },
        Shape::Polygon(RegularPolygon::new(50., 6)),
        Spin,
        DesiredVolume::Circle,
        Intersects::default(),
    ));

    commands.spawn(
        TextBundle::from_section("", TextStyle::default()).with_style(Style {
            position_type: PositionType::Absolute,
            bottom: Val::Px(12.0),
            left: Val::Px(12.0),
            ..default()
        }),
    );
}

pub fn circumradius(&self) -> f32

Get the radius of the circumcircle on which all vertices of the regular polygon lie

pub fn inradius(&self) -> f32

Get the inradius or apothem of the regular polygon. This is the radius of the largest circle that can be drawn within the polygon

pub fn side_length(&self) -> f32

Get the length of one side of the regular polygon

pub fn internal_angle_degrees(&self) -> f32

Get the internal angle of the regular polygon in degrees.

This is the angle formed by two adjacent sides with points within the angle being in the interior of the polygon

pub fn internal_angle_radians(&self) -> f32

Get the internal angle of the regular polygon in radians.

This is the angle formed by two adjacent sides with points within the angle being in the interior of the polygon

pub fn external_angle_degrees(&self) -> f32

Get the external angle of the regular polygon in degrees.

This is the angle formed by two adjacent sides with points within the angle being in the exterior of the polygon

pub fn external_angle_radians(&self) -> f32

Get the external angle of the regular polygon in radians.

This is the angle formed by two adjacent sides with points within the angle being in the exterior of the polygon

pub fn vertices(self, rotation: f32) -> impl IntoIterator<Item = Vec2>

Returns an iterator over the vertices of the regular polygon, rotated counterclockwise by the given angle in radians.

With a rotation of 0, a vertex will be placed at the top (0.0, circumradius).

Trait Implementations§

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impl Bounded2d for RegularPolygon

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fn aabb_2d(&self, translation: Vec2, rotation: impl Into<Rot2>) -> Aabb2d

Get an axis-aligned bounding box for the shape with the given translation and rotation. The rotation is in radians, counterclockwise, with 0 meaning no rotation.
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fn bounding_circle( &self, translation: Vec2, _rotation: impl Into<Rot2>, ) -> BoundingCircle

Get a bounding circle for the shape The rotation is in radians, counterclockwise, with 0 meaning no rotation.
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impl BoundedExtrusion for RegularPolygon

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fn extrusion_aabb_3d( &self, half_depth: f32, translation: Vec3, rotation: Quat, ) -> Aabb3d

Get an axis-aligned bounding box for an extrusion with this shape as a base and the given half_depth, transformed by the given translation and rotation.
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fn extrusion_bounding_sphere( &self, half_depth: f32, translation: Vec3, rotation: Quat, ) -> BoundingSphere

Get a bounding sphere for an extrusion of the base_shape with the given half_depth with the given translation and rotation
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impl Clone for RegularPolygon

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fn clone(&self) -> RegularPolygon

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for RegularPolygon

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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 Default for RegularPolygon

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fn default() -> RegularPolygon

Returns the default RegularPolygon with six sides (a hexagon) and a circumradius of 0.5.

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impl<'de> Deserialize<'de> for RegularPolygon

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fn deserialize<__D>( __deserializer: __D, ) -> Result<RegularPolygon, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<RegularPolygon> for Mesh

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fn from(polygon: RegularPolygon) -> Mesh

Converts to this type from the input type.
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impl FromReflect for RegularPolygon
where RegularPolygon: Any + Send + Sync, Circle: FromReflect + TypePath + RegisterForReflection, usize: FromReflect + TypePath + RegisterForReflection,

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

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 GetTypeRegistration for RegularPolygon
where RegularPolygon: Any + Send + Sync, Circle: FromReflect + TypePath + RegisterForReflection, usize: 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<'w, 's, Config, Clear> GizmoPrimitive2d<RegularPolygon> for Gizmos<'w, 's, Config, Clear>
where Config: GizmoConfigGroup, Clear: 'static + Send + Sync,

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type Output<'a> = () where Gizmos<'w, 's, Config, Clear>: 'a

The output of primitive_2d. This is a builder to set non-default values.
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fn primitive_2d( &mut self, primitive: &RegularPolygon, position: Vec2, angle: f32, color: impl Into<Color>, ) -> <Gizmos<'w, 's, Config, Clear> as GizmoPrimitive2d<RegularPolygon>>::Output<'_>

Renders a 2D primitive with its associated details.
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impl Measured2d for RegularPolygon

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fn area(&self) -> f32

Get the area of the regular polygon

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fn perimeter(&self) -> f32

Get the perimeter of the regular polygon. This is the sum of its sides

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impl Meshable for RegularPolygon

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type Output = RegularPolygonMeshBuilder

The output of Self::mesh. This will be a MeshBuilder used for creating a Mesh.
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fn mesh(&self) -> <RegularPolygon as Meshable>::Output

Creates a Mesh for a shape.
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impl PartialEq for RegularPolygon

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Reflect for RegularPolygon
where RegularPolygon: Any + Send + Sync, Circle: FromReflect + TypePath + RegisterForReflection, usize: 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<RegularPolygon>) -> 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<RegularPolygon>) -> 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<RegularPolygon>) -> 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 Serialize for RegularPolygon

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Struct for RegularPolygon
where RegularPolygon: Any + Send + Sync, Circle: FromReflect + TypePath + RegisterForReflection, usize: 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 TypePath for RegularPolygon

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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 Typed for RegularPolygon
where RegularPolygon: Any + Send + Sync, Circle: FromReflect + TypePath + RegisterForReflection, usize: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl Copy for RegularPolygon

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impl Primitive2d for RegularPolygon

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impl StructuralPartialEq for RegularPolygon

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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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impl<T, U> AsBindGroupShaderType<U> for T
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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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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fn as_any(&self) -> &(dyn Any + 'static)

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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fn from_sample_(s: S) -> S

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impl<T> FromWorld for T
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fn from_world(_world: &mut World) -> T

Creates Self using data from the given World.
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Returns a reference to the value of the field named name, downcast to T.
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fn into(self) -> U

Calls U::from(self).

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

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type NoneType = T

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The none-equivalent value.
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const ALIGN: usize = _

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<R, P> ReadPrimitive<R> for P
where R: Read + ReadEndian<P>, P: Default,

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fn read_from_little_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().
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fn read_from_big_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().
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fn read_from_native_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Serialize for T
where T: Serialize + ?Sized,

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fn erased_serialize(&self, serializer: &mut dyn Serializer) -> Result<(), Error>

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fn do_erased_serialize( &self, serializer: &mut dyn Serializer, ) -> Result<(), ErrorImpl>

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeData for T
where T: 'static + Send + Sync + Clone,

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fn clone_type_data(&self) -> Box<dyn TypeData>

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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ConditionalSend for T
where T: Send,

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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impl<T> Settings for T
where T: 'static + Send + Sync,

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impl<T> WasmNotSend for T
where T: Send,

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impl<T> WasmNotSendSync for T
where T: WasmNotSend + WasmNotSync,

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impl<T> WasmNotSync for T
where T: Sync,