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"""
Tests for JPEG 2000 with embedded geographic metadata.
"""
# standard library imports
import importlib.resources as ir
import io
import shutil
from unittest import skipIf
import uuid
import warnings
# 3rd party library imports
from lxml import etree as ET
import numpy as np
# local imports
from glymur.jp2box import LabelBox, XMLBox, AssociationBox, UUIDBox
import glymur
from tests import fixtures
@skipIf(not fixtures._HAVE_GDAL, "Could not load GDAL")
class TestSuite(fixtures.TestCommon):
def setUp(self):
super().setUp()
self._setUpHiRise()
def _setUpHiRise(self):
"""
Create a HiRISE-like jp2 file to investigate.
"""
# Hand-create the boxes needed for HiRISE.
the_uuid = uuid.UUID("2b0d7e97-aa2e-317d-9a33-e53161a2f7d0")
ulst = glymur.jp2box.UUIDListBox([the_uuid])
version = 0
flag = [0, 0, 0]
url = "ESP_032436_1755_COLOR.LBL"
debox = glymur.jp2box.DataEntryURLBox(version, flag, url)
uuidinfo = glymur.jp2box.UUIDInfoBox([ulst, debox])
uuid_data = ir.files("tests.data.tiff") \
.joinpath("degenerate_geotiff.tif") \
.read_bytes()
the_uuid = uuid.UUID("b14bf8bd-083d-4b43-a5ae-8cd7d5a6ce03")
geotiff_uuid = glymur.jp2box.UUIDBox(the_uuid, uuid_data)
# Fabricate a new JP2 file out of the signature, file type, header,
# and codestream out of nemo.jp2, but add in the UUIDInfo and UUID
# box from HiRISE.
jp2 = glymur.Jp2k(self.jp2file)
boxes = [
jp2.box[0],
jp2.box[1],
jp2.box[2],
uuidinfo,
geotiff_uuid,
jp2.box[-1],
]
self.hirise_jp2file_name = self.test_dir_path / "hirise.jp2"
jp2.wrap(self.hirise_jp2file_name, boxes=boxes)
def test_gml(self):
"""
Scenario: construct a GML-JP2 file
Expected Result: gdal information is verified in the printing output
"""
# Load the xml
path = ir.files("tests.data.geo").joinpath("gml.xml")
xml = ET.parse(str(path))
# Create a file with the asoc box (child boxes are a label box and an
# XML box with the GML).
labelbox = LabelBox("gml.root-instance")
xmlbox = XMLBox(xml)
asocbox = AssociationBox([labelbox, xmlbox])
labelbox = LabelBox("gml.data")
asocbox = AssociationBox([labelbox, asocbox])
# Make a copy of nemo and tack the association box onto the end of it
dst = self.test_dir_path / "gml.jp2"
shutil.copyfile(self.jp2file, dst)
j = glymur.Jp2k(dst)
j.append(asocbox)
actual = str(j.box[-1])
# just verify that some gdal stuff is present
self.assertIn("PROJCRS", actual)
self.assertIn("BASEGEOGCRS", actual)
def test__printing__geotiff_uuid__xml_sidecar(self):
"""
SCENARIO: Print a geotiff UUID with XML sidecar file.
EXPECTED RESULT: Should not error out. There used to be a warning
about GDAL not being able to print the UUID data as expected, but that
is no longer the case.
"""
box_data = ir.files("tests.data.geo") \
.joinpath("0220000800_uuid.dat") \
.read_bytes()
bf = io.BytesIO(box_data)
bf.seek(8)
box = UUIDBox.parse(bf, 0, 703)
# Make a copy of nemo and tack the association box onto the end of it
dst = self.test_dir_path / "sidecar.jp2"
shutil.copyfile(self.jp2file, dst)
j = glymur.Jp2k(dst)
j.append(box)
with warnings.catch_warnings(record=True) as w:
str(j)
self.assertEqual(len(w), 0)
def test_tags(self):
"""
Scenario: a HIRise-like JP2 has geotiff tags
Expected Result: the tags are verified
"""
jp2 = glymur.Jp2k(self.hirise_jp2file_name)
np.testing.assert_array_equal(
jp2.box[4].data["GeoDoubleParams"],
np.array([0.0, 180.0, 0.0, 0.0, 3396190.0, 3396190.0]),
)
self.assertEqual(
jp2.box[4].data["GeoAsciiParams"], "Equirectangular MARS|GCS_MARS|"
)
np.testing.assert_array_equal(
jp2.box[4].data["GeoKeyDirectory"],
np.array(
[
1, 1, 0, 18,
1024, 0, 1, 1,
1025, 0, 1, 1,
1026, 34737, 21, 0,
2048, 0, 1, 32767,
2049, 34737, 9, 21,
2050, 0, 1, 32767,
2054, 0, 1, 9102,
2056, 0, 1, 32767,
2057, 34736, 1, 4,
2058, 34736, 1, 5,
3072, 0, 1, 32767,
3074, 0, 1, 32767,
3075, 0, 1, 17,
3076, 0, 1, 9001,
3082, 34736, 1, 2,
3083, 34736, 1, 3,
3088, 34736, 1, 1,
3089, 34736, 1, 0,
]
),
)
np.testing.assert_array_equal(
jp2.box[4].data["ModelPixelScale"], np.array([0.25, 0.25, 0.0])
)
np.testing.assert_array_equal(
jp2.box[4].data["ModelTiePoint"],
np.array([0.0, 0.0, 0.0, -2523306.125, -268608.875, 0.0]),
)
def test_printing_geotiff_uuid(self):
"""
SCENARIO: Print a geotiff UUID.
EXPECTED RESULT: There should be both gdal and IFD information.
"""
jp2 = glymur.Jp2k(self.hirise_jp2file_name)
actual = str(jp2.box[4])
self.assertIn('Equirectangular MARS', actual)
self.assertIn('ModelPixelScale', actual)
def test_print_bad_geotiff(self):
"""
SCENARIO: A GeoTIFF UUID has some incorrect tags.
EXPECTED RESULT: No errors. There are warnings, but they are now
emitted directly from the TIFF library via GDAL, so they are no longer
catchable. No warnings.
"""
path = ir.files("tests.data.misc").joinpath("issue398.dat")
with path.open("rb") as f:
f.seek(8)
box = glymur.jp2box.UUIDBox.parse(f, 0, 380)
# Make a copy of nemo and tack the association box onto the end of it
dst = self.test_dir_path / "corrupt.jp2"
shutil.copyfile(self.jp2file, dst)
j = glymur.Jp2k(dst)
j.append(box)
with warnings.catch_warnings(record=True) as w:
str(j.box[-1])
self.assertEqual(len(w), 0)
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