Struct CanvasSource 

pub struct CanvasSource {
    pub coordinates: [GeoCoord; 4],
    pub factory: FrameProviderFactory,
    pub animate: bool,
}

Canvas source — georeferenced dynamic overlay driven by a FrameProvider.

This is the Rustial equivalent of MapLibre / Mapbox canvas source. In the browser, a <canvas> element supplies frames; in Rustial the user supplies a FrameProviderFactory that creates a FrameProvider for each style application.

The animate flag controls whether the source re-reads its provider each frame. Set it to false for static canvas content to avoid unnecessary GPU re-uploads.

Fields

coordinates: [GeoCoord; 4]

Geographic corner coordinates (TL, TR, BR, BL).

factory: FrameProviderFactory

Factory used to build a fresh frame provider when the style is applied.

animate: bool

Whether this canvas source animates (polls each frame). Defaults to true.

Implementations

impl CanvasSource

pub fn new( coordinates: [GeoCoord; 4], factory: impl Fn() -> Box<dyn FrameProvider> + Send + Sync + 'static, ) -> Self

Create a canvas source.

coordinates must be in TL → TR → BR → BL order.

pub fn with_animate(self, animate: bool) -> Self

Set the animate flag.

Trait Implementations

impl Clone for CanvasSource

fn clone(&self) -> CanvasSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CanvasSource

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

Formats the value using the given formatter.