def test_getrange(self):
with SD.start(self.sdfile, SD.DFACC_READ) as sdid:
idx = SD.nametoindex(sdid, 'Reflectivity')
with SD.select(sdid, idx) as sds_id:
smax, smin = SD.getrange(sds_id)
self.assertEqual(smax, 105.0)
self.assertEqual(smin, -5.0)
def test_sd(self):
with SD.start(self.sdfile, SD.DFACC_READ) as sdid:
idx = SD.nametoindex(sdid, 'Reflectivity')
with SD.select(sdid, idx) as sds_id:
info = SD.getinfo(sds_id)
self.assertEqual(info[0], 'Reflectivity')
attr_idx = SD.findattr(sds_id, 'long_name')
attr_name, datatype, count = SD.attrinfo(sds_id, attr_idx)
long_name = SD.readattr(sds_id, attr_idx)
self.assertEqual(long_name, 'Effective Surface Reflectivity')
attr_idx = SD.findattr(sds_id, '_FillValue')
fv = SD.readattr(sds_id, attr_idx)
self.assertEqual(fv, 999.0)
data = SD.readdata(sds_id)
self.assertEqual(data[0, 0], 999.0)
self.assertEqual(data[179, 287], 98.0)
def test_basic(self):
with SD.start(self.sdfile, SD.DFACC_READ) as sdid:
idx = SD.nametoindex(sdid, 'Reflectivity')
with SD.select(sdid, idx) as sds_id:
data = SD.readdata(sds_id)
driver = gdal.GetDriverByName('GTiff')
src_ds = gdal.Open(self.sdfile)
with tempfile.NamedTemporaryFile(suffix=".tif") as tfile:
dst_ds = driver.Create(tfile.name, data.shape[1], data.shape[0], 1,
gdal.GDT_Float32)
dst_ds.SetProjection(src_ds.GetProjection())
dst_ds.SetGeoTransform(src_ds.GetGeoTransform())
if src_ds.GetGCPCount() > 0:
dst_ds.SetGCPs(src_ds.get_GCPs(), src_ds.GetGCPProjection())
dst_ds.GetRasterBand(1).WriteArray(data)
dst_ds = None
def test_basic(self):
with SD.start(self.sdfile, SD.DFACC_READ) as sdid:
idx = SD.nametoindex(sdid, 'Reflectivity')
with SD.select(sdid, idx) as sds_id:
data = SD.readdata(sds_id)
nrows, ncols = data.shape
with tempfile.NamedTemporaryFile(suffix=".tif") as tfile:
with TIFF.open(tfile.name, 'w') as tifp:
TIFF.setfield(tifp, 'ImageWidth', ncols)
TIFF.setfield(tifp, 'ImageLength', nrows)
TIFF.setfield(tifp, 'SamplesPerPixel', 1)
TIFF.setfield(tifp, 'BitsPerSample', 32)
TIFF.setfield(tifp, 'PlanarConfiguration', TIFF.PLANARCONFIG_CONTIG)
TIFF.setfield(tifp, 'PhotometricInterpretation', TIFF.PHOTOMETRIC_MINISBLACK)
TIFF.setfield(tifp, 'SampleFormat', TIFF.SAMPLEFORMAT_IEEEFP)
TIFF.setfield(tifp, 'RowsPerStrip', nrows)
TIFF.writeencodedstrip(tifp, 0, data)
import shutil
shutil.copyfile(tfile.name,
os.path.join(os.environ['HOME'], 'b.tif'))