Struct CustomGeometrySourceOptions 

pub struct CustomGeometrySourceOptions {
    pub fetch_tile: Arc<dyn Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static>,
    pub cancel_tile: Option<Arc<dyn Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static>>,
    pub min_zoom: Option<f64>,
    pub max_zoom: Option<f64>,
    pub tolerance: Option<f64>,
    pub tile_size: Option<u32>,
    pub buffer: Option<u32>,
    pub clip: Option<bool>,
    pub wrap: Option<bool>,
}

The callbacks and options of a custom geometry source.

Zoom levels are whole numbers from 0 to 32.

See mln_custom_geometry_source_options in the C API reference.

Fields

fetch_tile: Arc<dyn Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static>

The callback receives (map, source_id, tile_id).

cancel_tile: Option<Arc<dyn Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static>>

The callback receives (map, source_id, tile_id).

min_zoom: Option<f64>

max_zoom: Option<f64>

tolerance: Option<f64>

How far, in pixels, simplified geometry can stray from the original.

tile_size: Option<u32>

The width of a tile in pixels, a power of two no larger than 8192.

buffer: Option<u32>

The width in pixels of the margin around a tile that holds geometry from beyond its edges. buffer times 8192 / tile_size must be at most 65535.

clip: Option<bool>

Whether to cut geometry at the outer edge of a tile’s margin.

wrap: Option<bool>

Whether to wrap geometry that crosses the antimeridian.

Implementations

impl CustomGeometrySourceOptions

pub fn with_cancel_tile<F>(self, callback: F) -> Self

where F: Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static,

pub fn new<F>(fetch_tile: F) -> Self

where F: Fn(&MapHandle, &str, CanonicalTileId) + Send + Sync + 'static,

Trait Implementations

impl Clone for CustomGeometrySourceOptions

fn clone(&self) -> CustomGeometrySourceOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CustomGeometrySourceOptions

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

Formats the value using the given formatter.