Struct TileMetadata 

pub struct TileMetadata {
    pub available: Vec<Vec<AvailableRange>>,
}

Metadata for quantized-mesh extension.

Contains child tile availability information.

Fields

available: Vec<Vec<AvailableRange>>

Available tile ranges by zoom level offset from current tile. Level 0 is one level below current tile (children). Level 1 is two levels below (grandchildren), etc.

Implementations

impl TileMetadata

pub fn new() -> Self

Create new empty metadata.

pub fn all_available(current_zoom: u8, max_zoom: u8) -> Self

👎Deprecated:

Use for_tile instead, which computes correct child tile ranges

Create metadata indicating all children are available for levels more zoom levels.

This is useful for tiles where we know all descendants exist up to a certain depth.

pub fn for_tile( tile_x: u32, tile_y: u32, current_zoom: u8, max_zoom: u8, ) -> Self

Create metadata for a specific tile indicating all descendants are available.

Arguments

• tile_x - X coordinate of the current tile
• tile_y - Y coordinate of the current tile
• current_zoom - Zoom level of the current tile
• max_zoom - Maximum zoom level to include in metadata

The metadata contains availability ranges for descendant tiles relative to this tile. For geodetic TMS, each tile at zoom z has 4 children at zoom z+1.

Trait Implementations

impl Clone for TileMetadata

fn clone(&self) -> TileMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TileMetadata

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

Formats the value using the given formatter.

impl Default for TileMetadata

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TileMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TileMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.