Python rasterio.enums() Examples

The following are 3 code examples of rasterio.enums(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module rasterio , or try the search function .
Example #1
Source File: raster_base.py    From terracotta with MIT License 6 votes vote down vote up 
def _get_resampling_enum(method: str) -> Any:
        from rasterio.enums import Resampling

        if method == 'nearest':
            return Resampling.nearest

        if method == 'linear':
            return Resampling.bilinear

        if method == 'cubic':
            return Resampling.cubic

        if method == 'average':
            return Resampling.average

        raise ValueError(f'unknown resampling method {method}')
Example #2
Source File: raster_base.py    From terracotta with MIT License 5 votes vote down vote up 
def _has_alpha_band(src: 'DatasetReader') -> bool:
        from rasterio.enums import MaskFlags, ColorInterp
        return (
            any([MaskFlags.alpha in flags for flags in src.mask_flag_enums])
            or ColorInterp.alpha in src.colorinterp
        )
Example #3
Source File: test_pansharp_unittest.py    From rio-pansharpen with MIT License 4 votes vote down vote up 
def test_reproject():
    from rasterio.warp import reproject
    from rasterio.enums import Resampling

    with rasterio.Env():
        # As source: a 1024 x 1024 raster centered on 0 degrees E and 0
        # degrees N, each pixel covering 15".
        rows, cols = src_shape = (1024, 1024)
        # decimal degrees per pixel
        d = 1.0 / 240

        # The following is equivalent to
        # A(d, 0, -cols*d/2, 0, -d, rows*d/2).
        src_transform = rasterio.Affine.translation(
                    -cols*d/2,
                    rows*d/2) * rasterio.Affine.scale(d, -d)
        src_crs = {'init': 'EPSG:4326'}
        source = np.ones(src_shape, np.uint8) * 255

        # Destination: a 2048 x 2048 dataset in Web Mercator (EPSG:3857)
        # with origin at 0.0, 0.0.
        dst_shape = (2048, 2048)
        dst_transform = Affine.from_gdal(
            -237481.5, 425.0, 0.0, 237536.4, 0.0, -425.0)
        dst_crs = {'init': 'EPSG:3857'}
        destination = np.zeros(dst_shape, np.uint8)

        reproject(
            source,
            destination,
            src_transform=src_transform,
            src_crs=src_crs,
            dst_transform=dst_transform,
            dst_crs=dst_crs,
            resampling=Resampling.nearest)

        # Assert that the destination is only partly filled.
        assert destination.any()
        assert not destination.all()


# Testing upsample function