Struct ChunkedRaster 

pub struct ChunkedRaster<R: RasterSource> {
    pub source: R,
    pub total_width: usize,
    pub total_height: usize,
    pub chunk_size: usize,
    pub halo: usize,
}

A tiled view of a RasterSource that yields overlapping chunks with halo (ghost / border) cells for seamless neighbourhood processing.

Create with ChunkedRaster::new and iterate with ChunkedRaster::iter.

Fields

source: R

The underlying raster data source.

total_width: usize

Total width of the source raster in pixels.

total_height: usize

Total height of the source raster in pixels.

chunk_size: usize

Target core width and height of each chunk (actual edge chunks may be smaller).

halo: usize

Number of halo pixels added on each side of every chunk.

Implementations

impl<R: RasterSource> ChunkedRaster<R>

pub fn new( source: R, chunk_size: usize, halo: usize, ) -> Result<Self, RasterError>

Creates a new ChunkedRaster.

Errors

Returns RasterError::InvalidChunkSize if chunk_size == 0.

pub fn iter(&self) -> ChunkIterator<'_, R>

Returns a ChunkIterator that yields all chunks in raster-scan order.