Enum Layer 

pub enum Layer {
    Shaded,
    Height,
    Flow,
    Rivers,
    Lakes,
    Ocean,
}

A single output layer of a Terrain, for writing one file per layer.

Shaded is a picture; the rest are data layers meant to be read back by other tools, so they are written losslessly: elevation and flow as 16-bit greyscale (8 bits would quantise elevation into visible terraces), masks as 8-bit black/white.

Variants

Shaded

The shaded relief render — biome colours, hillshading, water.

Height

Elevation, 16-bit greyscale, 0 = 0.0 and 65535 = 1.0.

Flow

Normalised flow accumulation, 16-bit greyscale.

Rivers

River mask, 8-bit: 255 where a river runs.

Lakes

Lake mask, 8-bit: 255 where a lake stands.

Ocean

Ocean mask, 8-bit: 255 where the cell is sea.

Implementations

impl Layer

pub const ALL: [Layer; 6]

Every layer, in a stable order.

pub fn name(self) -> &'static str

The lowercase name used by FromStr and suitable as a filename suffix.

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Layer

impl Debug for Layer

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

Formats the value using the given formatter.

impl Display for Layer

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

Formats the value using the given formatter.

impl Eq for Layer

impl FromStr for Layer

type Err = UnknownLayer

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Layer

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Layer