How to specify reprojection method in TilerFactory's XarrayReader

[davidbrochart]

An XarrayReader supports various values for reproject_method. How can one specify which method to use in a TilerFactory?

[vincentsarago]

there should be a reproject query-parameter option available for the tile endpoints

titiler/src/titiler/xarray/titiler/xarray/dependencies.py

Lines 108 to 114 in 08868e5

	reproject_method: Annotated[
	Optional[WarpResampling],
	Query(
	alias="reproject",
	description="WarpKernel resampling algorithm (only used when doing re-projection). Defaults to `nearest`.",
	),
	] = None

the reproject option is not defined a TilerFactory level but at endpoint level.

If you want to have reproject to default to a specific value you'll have to create a custom DatasetParams dependency like:

@dataclass
class DatasetParams(DefaultDependency):
    """Low level WarpedVRT Optional parameters."""

    nodata: Annotated[
        Optional[Union[str, int, float]],
        Query(
            title="Nodata value",
            description="Overwrite internal Nodata value",
        ),
    ] = None
    reproject_method: Annotated[
        Optional[WarpResampling],
        Query(
            alias="reproject",
            description="WarpKernel resampling algorithm (only used when doing re-projection). Defaults to `nearest`.",
        ),
    ] = "cubic"  # default to cubic

    def __post_init__(self):
        """Post Init."""
        if self.nodata is not None:
            self.nodata = numpy.nan if self.nodata == "nan" else float(self.nodata)

[davidbrochart]

Thanks so much @vincentsarago!