def test_write_read_memory(self):
img = np.ones((self.height, self.width), np.int16)
path = "/vsimem/test_write_read_memory.tif"
ds = ImageIO.write_to_memory(img, path, self.projection,
self.coordinates)
arr = ds.ReadAsArray()
self.assertTrue((arr == img).all())
self.assertEqual(ds.GetGeoTransform(), self.coordinates)
# Compare projections by removing all spaces cause of multiline string
self.assertEqual(ds.GetProjection().replace(" ", ""),
self.projection.replace(" ", ""))
ds = None # Always remember to dereference :)
FileSystem.remove_file(path)
def get_ds(self):
"""
Return a new copy of a :class:`gdal.Dataset`.
:return: A gdal dataset object
"""
p_out = "/vsimem/" + uuid.uuid4().hex
try:
nodata = self.nodata_value
except AttributeError:
nodata = None
return ImageIO.write_to_memory(self.array,
p_out,
self.projection,
self.geotransform,
nodata=nodata)