Struct ImageOverlayLayer 

pub struct ImageOverlayLayer { /* private fields */ }

A georeferenced raster image rendered as a textured quadrilateral.

This is the Rustial equivalent of MapLibre / Mapbox’s image source. The image is pinned to four geographic corner coordinates and rendered as a textured quad in the active camera projection.

Coordinate order

Corners are specified in TL → TR → BR → BL (clockwise) order, matching the MapLibre coordinates array convention.

Implementations

impl ImageOverlayLayer

pub fn new( name: impl Into<String>, coordinates: [GeoCoord; 4], width: u32, height: u32, data: Vec<u8>, ) -> Self

Create a new image overlay layer.

corners must be in TL → TR → BR → BL order. data must be RGBA8 pixel data of length width * height * 4.

pub fn coordinates(&self) -> &[GeoCoord; 4]

Geographic corners (TL, TR, BR, BL).

pub fn set_coordinates(&mut self, coordinates: [GeoCoord; 4])

Update the geographic corners.

pub fn update_image(&mut self, width: u32, height: u32, data: Vec<u8>)

Replace the image pixel data.

data must be RGBA8 of length width * height * 4.

pub fn generation(&self) -> u64

Monotonic generation counter, bumped on coordinate or image changes.

pub fn dimensions(&self) -> (u32, u32)

Image dimensions (width, height).

pub fn to_overlay_data(&self, projection: CameraProjection) -> ImageOverlayData

Produce renderer-ready overlay data by projecting geographic corners into the active world-space coordinate system.

Trait Implementations

impl Clone for ImageOverlayLayer

fn clone(&self) -> ImageOverlayLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageOverlayLayer

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

Formats the value using the given formatter.

impl Layer for ImageOverlayLayer

fn id(&self) -> LayerId

A process-unique identifier for this layer.

fn name(&self) -> &str

Human-readable name for UI and debug output.

fn kind(&self) -> LayerKind

The concrete layer type for enum-based dispatch.

fn visible(&self) -> bool

Whether this layer participates in the current frame.

fn set_visible(&mut self, visible: bool)

Toggle visibility on or off.

fn opacity(&self) -> f32

Layer opacity in the range [0.0, 1.0].

fn set_opacity(&mut self, opacity: f32)

Set the layer opacity.

fn as_any(&self) -> &dyn Any

Borrow the layer as &dyn Any for concrete type access.

fn as_any_mut(&mut self) -> &mut dyn Any

Borrow the layer as &mut dyn Any for mutable concrete type access.

fn z_index(&self) -> i32

Hint for render ordering within the layer stack.