tests.py 文件源码

def test_spectral_profile(self):
        '''
        Should correctly retrieve a spectral profile from a raster dataset.
        '''
        coords = ((-84.5983, 42.7256), (-85.0807, 41.1138))
        pixels = [(18, 0), (2, 59)]
        file_path = os.path.join(self.test_dir, 'multi3_raster.tiff')
        ds = gdal.Open(file_path)
        kwargs = {
            'gt': ds.GetGeoTransform(),
            'wkt': ds.GetProjection(),
            'dd': True
        }

        # The true spectral profile
        spectra = np.array([[237, 418, 325], [507, 616, 445]], dtype=np.int16)
        sp1 = spectra_at_xy(ds, coords, **kwargs)
        sp2 = spectra_at_xy(ds.ReadAsArray(), coords, **kwargs)
        sp3 = spectra_at_idx(ds.ReadAsArray().transpose(), pixels)
        self.assertEqual(spectra.tolist(), sp1.tolist())
        self.assertEqual(spectra.tolist(), sp2.tolist())
        self.assertEqual(spectra.tolist(), sp3.tolist())