Enum TerrainRgbEncoding 

pub enum TerrainRgbEncoding {
    Terrarium,
    Mapbox,
}

Encoding scheme for Terrain-RGB PNG tiles.

Variants

Terrarium

AWS Terrain Tiles / Terrarium. elevation = (R * 256 + G + B / 256) - 32768

Mapbox

Mapbox Terrain-RGB / MapTiler. elevation = -10000 + (R * 65536 + G * 256 + B) * 0.1

Implementations

impl TerrainRgbEncoding

pub fn decode(&self, r: u8, g: u8, b: u8) -> f32

Decode a single pixel’s RGB values to elevation in meters.

Values are clamped to [-500, +9_100] meters to filter out “no data” sentinels (Terrarium encodes (0,0,0) as −32 768 m) and corrupt pixels. −500 m is well below any real land surface (Dead Sea ≈ −430 m) and prevents extreme depressions that create visible gaps between terrain tiles.

Trait Implementations

impl Clone for TerrainRgbEncoding

fn clone(&self) -> TerrainRgbEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TerrainRgbEncoding

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

Formats the value using the given formatter.

impl PartialEq for TerrainRgbEncoding

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TerrainRgbEncoding

impl Eq for TerrainRgbEncoding

impl StructuralPartialEq for TerrainRgbEncoding