Exports Geo Utils¶

Module: spectralbridge.exports.geo_utils.

Direct-module reference; consult the linked workflow for processing context.

Signatures and documentation below are collected from the current source. Advanced objects are not newly declared stable by inclusion here.

Audience: advanced.

GeoContext `dataclass` ¶

GeoContext(crs_epsg: Optional[int], a: float, e: float, c: float, f: float)

Store EPSG and affine pixel geometry needed for export-coordinate columns.

Audience: advanced.

load_geo_from_hdr(hdr_path: Path) -> Optional[GeoContext]

Extract pixel size, origin and an inferred EPSG code from an existing ENVI header; return None without map information.

Audience: advanced.

add_lonlat_inplace(df, geo: Optional[GeoContext])

Fill x,y from row/col + affine if needed; then lon,lat from x,y + CRS.

Audience: advanced.

write_parquet_with_lonlat(df_long, out_parquet: Path, hdr_path: Optional[Path])

Write a dataframe to parquet after enriching lon/lat from an ENVI header.