def test_write_default_header(self):
data_filename = 'test_write_ermapper_grid'
# setup test data
original_grid = num.array([[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]])
# Write test data
ermapper_grids.write_ermapper_data(original_grid, data_filename)
# Write test header using all default values
header_filename = data_filename + '.ers'
ermapper_grids.write_ermapper_header(header_filename)
# Check that the read in values match the default values
header = ermapper_grids.read_ermapper_header(header_filename)
assert header['datum'] == '"GDA94"'
assert header['projection'] == '"GEOGRAPHIC"'
assert header['coordinatetype'] == 'LL'
assert header['rotation'] == '0:0:0.0'
assert header['celltype'] == 'IEEE4ByteReal'
assert header['nullcellvalue'] == '-99999'
assert header['xdimension'] == '100'
assert header['registrationcellx'] == '0'
assert header['ydimension'] == '100'
assert header['registrationcelly'] == '2'
assert header['nroflines'] == '3'
assert header['nrofcellsperline'] == '4'
assert header['longitude'] == '0:0:0'
assert header['latitude'] == '0:0:0'
assert header['nrofbands'] == '1'
assert header['value'] == '"Default_Band"'
# Clean up created files
remove(data_filename)
remove(header_filename)
def test_write_default_header(self):
data_filename = 'test_write_ermapper_grid'
# setup test data
original_grid = num.array([[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]])
# Write test data
ermapper_grids.write_ermapper_data(original_grid, data_filename)
# Write test header using all default values
header_filename = data_filename + '.ers'
ermapper_grids.write_ermapper_header(header_filename)
# Check that the read in values match the default values
header = ermapper_grids.read_ermapper_header(header_filename)
assert header['datum'] == '"GDA94"'
assert header['projection'] == '"GEOGRAPHIC"'
assert header['coordinatetype'] == 'LL'
assert header['rotation'] == '0:0:0.0'
assert header['celltype'] == 'IEEE4ByteReal'
assert header['nullcellvalue'] == '-99999'
assert header['xdimension'] == '100'
assert header['registrationcellx'] == '0'
assert header['ydimension'] == '100'
assert header['registrationcelly'] == '2'
assert header['nroflines'] == '3'
assert header['nrofcellsperline'] == '4'
assert header['longitude'] == '0:0:0'
assert header['latitude'] == '0:0:0'
assert header['nrofbands'] == '1'
assert header['value'] == '"Default_Band"'
# Clean up created files
remove(data_filename)
remove(header_filename)
def test_write_non_default_header(self):
header_filename = 'test_write_ermapper_grid.ers'
# setup test data
header = {}
# have some values that aren't defaults
header['nroflines'] = '2'
header['nrofcellsperline'] = '3'
# Write test header using non-default values
ermapper_grids.write_ermapper_header(header_filename, header)
# Check that the read in values match the default values
header = ermapper_grids.read_ermapper_header(header_filename)
# default values
assert header['datum'] == '"GDA94"'
assert header['projection'] == '"GEOGRAPHIC"'
assert header['coordinatetype'] == 'LL'
assert header['rotation'] == '0:0:0.0'
assert header['celltype'] == 'IEEE4ByteReal'
assert header['nullcellvalue'] == '-99999'
assert header['xdimension'] == '100'
assert header['registrationcellx'] == '0'
assert header['ydimension'] == '100'
assert header['longitude'] == '0:0:0'
assert header['latitude'] == '0:0:0'
assert header['nrofbands'] == '1'
assert header['value'] == '"Default_Band"'
# non-default values
assert header['nroflines'] == '2'
assert header['nrofcellsperline'] == '3'
assert header['registrationcelly'] == '1'
# Clean up created files
remove(header_filename)
def test_write_non_default_header(self):
header_filename = 'test_write_ermapper_grid.ers'
# setup test data
header = {}
# have some values that aren't defaults
header['nroflines'] = '2'
header['nrofcellsperline'] = '3'
# Write test header using non-default values
ermapper_grids.write_ermapper_header(header_filename, header)
# Check that the read in values match the default values
header = ermapper_grids.read_ermapper_header(header_filename)
# default values
assert header['datum'] == '"GDA94"'
assert header['projection'] == '"GEOGRAPHIC"'
assert header['coordinatetype'] == 'LL'
assert header['rotation'] == '0:0:0.0'
assert header['celltype'] == 'IEEE4ByteReal'
assert header['nullcellvalue'] == '-99999'
assert header['xdimension'] == '100'
assert header['registrationcellx'] == '0'
assert header['ydimension'] == '100'
assert header['longitude'] == '0:0:0'
assert header['latitude'] == '0:0:0'
assert header['nrofbands'] == '1'
assert header['value'] == '"Default_Band"'
# non-default values
assert header['nroflines'] == '2'
assert header['nrofcellsperline'] == '3'
assert header['registrationcelly'] == '1'
# Clean up created files
remove(header_filename)