eoio.readers.flex.subset module

eoio.readers.flex.subset module#

eoio.readers.flex.subset#

Subset resolution for FLEX products.

Classes#

FLEXSubset(x_indices, y_indices, ...)

Resolved subsetting information for a FLEX read.

Functions#

build_subset(grid, wavelengths, subset)

Resolve a user subset request against the product grid and wavelength coordinates.
class eoio.readers.flex.subset.FLEXSubset(x_indices: ndarray | None = None, y_indices: ndarray | None = None, wavelength_indices: Dict[str, ~numpy.ndarray]=<factory>, roi: ResolvedROISubset | None = None)[source]#

Bases: object

Resolved subsetting information for a FLEX read.

Parameters:

  • x_indices – column indices to keep, or None for all.

  • y_indices – row indices to keep, or None for all.

  • wavelength_indices – indices to keep for each wavelength dimension, e.g. {"wavelength_olci": array([...])}. The same wavelength criteria are applied to every spectral grid in the product, each on its own wavelengths.

  • roi – resolved ROI (in the product CRS), or None.

roi: ResolvedROISubset | None = None#
wavelength_indices: Dict[str, ndarray]#
x_indices: ndarray | None = None#
y_indices: ndarray | None = None#
eoio.readers.flex.subset.build_subset(grid: FlexGrid, wavelengths: Mapping[str, DataArray], subset: Mapping) → FLEXSubset[source]#

Resolve a user subset request against the product grid and wavelength coordinates.

Parameters:

  • grid – product grid.

  • wavelengths – wavelength coordinate (1-D array-like with .size) for each wavelength dimension.

  • subset – subset request with optional roi, roi_crs and wavelength keys.

Returns:

resolved subset.