def path_to_dataset(test_dataset_filename) -> str:
'''Create a new dataset file and return its path.'''
path_to_dataset = test_dataset_filename(__file__)
RasterDataset.create(path_to_dataset, 'GTiff', gdal.GDT_Float32,
shape=(6, 4, 5), origin=(-123, 45),
pixel_size=(1.0, 2.0),
coordinate_system='WGS84')
return path_to_dataset
def valid_dataset_filename(test_dataset_filename) -> str:
'''Return a new gdal.Dataset instance'''
valid_dataset_filename = test_dataset_filename(__file__)
RasterDataset.create(valid_dataset_filename,
'GTiff',
gdal.GDT_Float32,
shape=(4, 3, 2),
origin=(-123, 45),
pixel_size=(1.0, 2.0),
coordinate_system='WGS84')
return valid_dataset_filename
def raster_dataset(test_dataset_filename,
array_assigned_to_band_index_0,
array_assigned_to_band_index_1) -> gdal.Dataset:
'''Create a new dataset, and set its values using write_band() and
write_pixel() functions.'''
# create the new dataset
dataset_file = test_dataset_filename(__file__)
raster_dataset = RasterDataset.create(dataset_file,
'GTiff', gdal.GDT_Float32,
shape=(2, 2, 2),
origin=(-123, 45),
pixel_size=(1.0, 1.0),
coordinate_system='WGS84')
# set the values in band 1 with a call to write_band
raster_dataset.write_band(0, array_assigned_to_band_index_0, float('Nan'))
# set the values in band 2 with calls to write_pixel
raster_dataset.write_pixel(1, 0, 0, array_assigned_to_band_index_1[0, 0])
raster_dataset.write_pixel(1, 0, 1, array_assigned_to_band_index_1[0, 1])
raster_dataset.write_pixel(1, 1, 0, array_assigned_to_band_index_1[1, 0])
raster_dataset.write_pixel(1, 1, 1, array_assigned_to_band_index_1[1, 1])
raster_dataset.flush()
return raster_dataset
def raster_dataset(test_dataset_filename) -> RasterDataset:
'''Return a new RasterDataset.'''
return RasterDataset.create(test_dataset_filename(__file__),
'GTiff',
gdal.GDT_Float32,
shape=(6, 4, 5),
origin=(-123, 45),
pixel_size=(1.0, 2.0),
coordinate_system='WGS84')
def raster_dataset(test_dataset_filename, array_assigned_to_band_index_0,
array_assigned_to_band_index_1) -> RasterDataset:
'''Create a new dataset, and set its values using write_band()
functions.'''
datafile_path = test_dataset_filename(__file__)
raster_dataset = RasterDataset.create(datafile_path,
'GTiff',
gdal.GDT_Float32,
shape=(2, 2, 2),
origin=(-123, 45),
pixel_size=(1.0, 1.0),
coordinate_system='WGS84')
# set the values in bands 0 and 1 with calls to write_band
raster_dataset.write_band(0, array_assigned_to_band_index_0, float('nan'))
raster_dataset.write_band(1, array_assigned_to_band_index_1, float('nan'))
raster_dataset.flush()
return raster_dataset
