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QuantizedMeshHeader

Struct QuantizedMeshHeader 

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pub struct QuantizedMeshHeader {
    pub center: [f64; 3],
    pub min_height: f32,
    pub max_height: f32,
    pub bounding_sphere_center: [f64; 3],
    pub bounding_sphere_radius: f64,
    pub horizon_occlusion_point: [f64; 3],
}
Expand description

Quantized mesh header (88 bytes).

All coordinates are in Earth-Centered Earth-Fixed (ECEF) frame.

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§center: [f64; 3]

Center of the tile in ECEF coordinates (meters)

§min_height: f32

Minimum height in the tile (meters)

§max_height: f32

Maximum height in the tile (meters)

§bounding_sphere_center: [f64; 3]

Bounding sphere center in ECEF coordinates (meters)

§bounding_sphere_radius: f64

Bounding sphere radius (meters)

§horizon_occlusion_point: [f64; 3]

Horizon occlusion point in ellipsoid-scaled ECEF coordinates

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impl QuantizedMeshHeader

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pub fn from_bounds( bounds: &TileBounds, min_height: f32, max_height: f32, ) -> Self

Create a header from tile bounds and height range.

Computes ECEF coordinates, bounding sphere, and horizon occlusion point. Falls back to corner+edge sample points for the horizon occlusion — callers that have the actual mesh vertices should prefer from_bounds_with_vertices for tighter occlusion.

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pub fn from_bounds_with_vertices( bounds: &TileBounds, min_height: f32, max_height: f32, vertices_geodetic: &[(f64, f64, f64)], ) -> Self

Like from_bounds, but uses the supplied mesh vertices (geodetic (lon, lat, height)) to compute a tighter horizon occlusion point via the Cesium EllipsoidalOccluder algorithm.

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pub fn to_bytes(&self) -> [u8; 88]

Serialize header to bytes (88 bytes, little-endian).

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pub fn from_bytes(bytes: &[u8]) -> Option<Self>

Deserialize header from bytes.

Trait Implementations§

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impl Clone for QuantizedMeshHeader

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fn clone(&self) -> QuantizedMeshHeader

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
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impl Debug for QuantizedMeshHeader

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

Formats the value using the given formatter. Read more
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impl Default for QuantizedMeshHeader

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Copy for QuantizedMeshHeader

Auto Trait Implementations§

Blanket Implementations§

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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