Struct RasterDataset 

pub struct RasterDataset {
    pub raster: Raster,
    pub driver: RasterDriver,
    pub has_nodata: bool,
    pub affine: Option<[f64; 6]>,
    pub complex: bool,
    pub geolocation: Option<Geolocation>,
}

A raster dataset read into memory.

Fields

raster: Raster

The pixels and georeferencing.

driver: RasterDriver

The driver that read it.

has_nodata: bool

Whether the file declares a nodata value (the raster always carries one).

affine: Option<[f64; 6]>

The geotransform of a rotated or south-up raster, which the raster’s origin and cell sizes cannot hold (they then hold the extent of its footprint); None for north-up rasters. Set it with RasterDataset::set_geo_transform.

complex: bool

Whether the bands hold complex numbers, as GDAL’s CInt16, CInt32, CFloat32 and CFloat64 bands: each complex band is two bands of raster, its real parts then its imaginary parts, of the parts’ type (Int16 for CInt16). Band k (from 0) of the dataset is bands 2k and 2k + 1 of the raster.

geolocation: Option<Geolocation>

Geolocation arrays, as GDAL’s GEOLOCATION metadata: for swaths and other rasters georeferenced by a longitude and a latitude per pixel rather than a geotransform.

Implementations

impl RasterDataset

pub fn new(raster: Raster, has_nodata: bool) -> Self

Wraps a raster created in memory.

pub fn set_geo_transform(&mut self, gt: [f64; 6])

Sets the geotransform: a north-up one goes to the raster’s origin and cell sizes; a rotated or south-up one is kept in RasterDataset::affine, the raster’s origin and cell sizes then describing the bounding box of its footprint.

pub fn with_driver( raster: Raster, driver: RasterDriver, has_nodata: bool, ) -> Self

Wraps a raster read by a driver: real-valued bands, without geolocation arrays.

pub fn band_count(&self) -> usize

The number of bands as GDAL counts them: complex bands count once.

pub fn data_type_name(&self) -> String

GDAL’s name of the bands’ data type: Int16, Float32… and CInt16, CFloat32… for complex bands.

pub fn crs(&self) -> SpatialRef

The CRS.

pub fn geo_transform(&self) -> [f64; 6]

The GDAL-style geotransform: [x_origin, pixel_width, row_rotation, y_origin, column_rotation, pixel_height], [x_origin, pixel_width, 0, y_origin, 0, -pixel_height] for north-up rasters.

pub fn nodata(&self) -> Option<f64>

The nodata value, when the file declares one.

Trait Implementations

impl Clone for RasterDataset

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RasterDataset

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

Formats the value using the given formatter.

impl From<RasterDataset> for LazyRaster

fn from(ds: RasterDataset) -> Self

Wraps a raster in memory, so that it is read by window like a lazy one.