implement a abstract RasterMetadataInterface class thats specifies a unified interface for raster metadata handling

[Andreas Janz]

Requested by @Benjamin Jakimow .

The class basically defines the interface for the proposed QGIS PAM, Spectral Properties and Temporal Properties described in RFC 1-3:
https://enmap-box.readthedocs.io/en/latest/dev_section/rfc_list/index.html

[Andreas Janz]

@Benjamin Jakimow here is the first version.

‌

from typing import List, Optional

from enmapboxprocessing.typing import Metadata, MetadataValue, MetadataDomain
from typeguard import typechecked


@typechecked
class RasterMetadataInterface(object):

    def metadataItem(self, key: str, domain: str = '', bandNo: int = None) -> Optional[MetadataValue]:
        raise NotImplementedError()

    def metadataDomain(self, domain: str = '', bandNo: int = None) -> MetadataDomain:
        raise NotImplementedError()

    def metadata(self, bandNo: int = None) -> Metadata:
        raise NotImplementedError()

    def metadataDomainKeys(self, bandNo: int = None) -> List[str]:
        raise NotImplementedError()

    def setMetadataItem(self, key: str, value: MetadataValue, domain: str = '', bandNo: int = None):
        raise NotImplementedError()

    def wavelength(self, bandNo: int, units: str = None) -> Optional[float]:
        raise NotImplementedError()

    def wavelengthUnits(self, bandNo: int) -> Optional[str]:
        raise NotImplementedError()

    def fwhm(self, bandNo: int, units: str = None) -> Optional[float]:
        raise NotImplementedError()

    def badBandMultiplier(self, bandNo: int) -> int:
        raise NotImplementedError()

‌

[Andreas Janz]

Not quite sure if this is useful for you. Feel free to add/change at your own will. I have the feeling that I won’t need the interface class at all.

[Andreas Janz]

TBD