Struct Header

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pub struct Header {Show 14 fields
    pub root_off: u64,
    pub root_len: u64,
    pub meta_off: u64,
    pub meta_len: u64,
    pub leaf_off: u64,
    pub leaf_len: u64,
    pub data_off: u64,
    pub data_len: u64,
    pub internal_compression: u8,
    pub tile_compression: u8,
    pub tile_type: u8,
    pub min_zoom: u8,
    pub max_zoom: u8,
    pub center: (f64, f64, u8),
}

Expand description

The PMTiles v3 header: where each section is, how tiles are compressed and typed, and the zoom range.

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§root_off: u64

Offset of the root directory.

§root_len: u64

Length of the root directory.

§meta_off: u64

Offset of the JSON metadata.

§meta_len: u64

Length of the JSON metadata.

§leaf_off: u64

Offset of the leaf directories.

§leaf_len: u64

Length of the leaf directories.

§data_off: u64

Offset of the tile data.

§data_len: u64

Length of the tile data.

§internal_compression: u8

Compression of directories and metadata (a COMPRESSION_* value).

§tile_compression: u8

Compression of tiles (a COMPRESSION_* value).

§tile_type: u8

What the tiles are (a TILE_TYPE_* value).

§min_zoom: u8

Lowest zoom with tiles.

§max_zoom: u8

Highest zoom with tiles.

§center: (f64, f64, u8)

(lon, lat, zoom)

Trait Implementations§

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impl Clone for Header

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fn clone(&self) -> Self

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 Header

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for Header

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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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