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tiff_srs.py
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tiff_srs.py
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#!/usr/bin/env pytest
###############################################################################
# $Id$
#
# Project: GDAL/OGR Test Suite
# Purpose: Test read/write round-tripping of SRS for GeoTIFF format.
# Author: Even Rouault, <even dot rouault at spatialys.com>
#
###############################################################################
# Copyright (c) 2011-2012, Even Rouault <even dot rouault at spatialys.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import gdaltest
import pytest
from osgeo import gdal, osr
###############################################################################
# Test fix for #4677:
def test_tiff_srs_without_linear_units():
sr = osr.SpatialReference()
sr.ImportFromProj4("+proj=vandg +datum=WGS84")
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_without_linear_units.tif", 1, 1
)
ds.SetProjection(sr.ExportToWkt())
ds = None
ds = gdal.Open("/vsimem/tiff_srs_without_linear_units.tif")
wkt = ds.GetProjectionRef()
sr2 = osr.SpatialReference()
sr2.SetFromUserInput(wkt)
ds = None
gdal.Unlink("/vsimem/tiff_srs_without_linear_units.tif")
assert sr.IsSame(sr2) == 1, "did not get expected SRS"
###############################################################################
# Test writing a COMPDCS without VerticalCSType
def test_srs_write_compd_cs():
sr = osr.SpatialReference()
# EPSG:7400 without the Authority
sr.SetFromUserInput(
"""COMPD_CS["unknown",
GEOGCS["NTF (Paris)",
DATUM["Nouvelle_Triangulation_Francaise_Paris",
SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,
AUTHORITY["EPSG","7011"]],
AUTHORITY["EPSG","6807"]],
PRIMEM["Paris",2.5969213],
UNIT["grad",0.01570796326794897],
AUTHORITY["EPSG","4807"]],
VERT_CS["NGF-IGN69 height",
VERT_DATUM["Nivellement General de la France - IGN69",2005,
AUTHORITY["EPSG","5119"]],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Up",UP]]]"""
)
ds = gdal.GetDriverByName("GTiff").Create("/vsimem/tiff_srs_compd_cs.tif", 1, 1)
ds.SetProjection(sr.ExportToWkt())
ds = None
gdal.SetConfigOption("GTIFF_REPORT_COMPD_CS", "YES")
ds = gdal.Open("/vsimem/tiff_srs_compd_cs.tif")
gdal.ErrorReset()
wkt = ds.GetProjectionRef()
assert gdal.GetLastErrorMsg() == ""
gdal.SetConfigOption("GTIFF_REPORT_COMPD_CS", None)
sr2 = osr.SpatialReference()
sr2.SetFromUserInput(wkt)
ds = None
gdal.Unlink("/vsimem/tiff_srs_compd_cs.tif")
assert sr.IsSame(sr2) == 1, wkt
###############################################################################
# Test reading a COMPDCS without VerticalCSType
def test_srs_read_compd_cs():
gdal.SetConfigOption("GTIFF_REPORT_COMPD_CS", "YES")
ds = gdal.Open("data/vertcs_user_defined.tif")
wkt = ds.GetProjectionRef()
gdal.SetConfigOption("GTIFF_REPORT_COMPD_CS", None)
assert (
wkt
== 'COMPD_CS["NAD27 / UTM zone 11N + EGM2008 height",PROJCS["NAD27 / UTM zone 11N",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898,AUTHORITY["EPSG","7008"]],AUTHORITY["EPSG","6267"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-117],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26711"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Up",UP]]]'
)
###############################################################################
# Test reading a GeoTIFF with both StdParallel1 and ScaleAtNatOrigin defined (#5791)
def test_tiff_srs_weird_mercator_2sp():
ds = gdal.Open("data/weird_mercator_2sp.tif")
gdal.PushErrorHandler()
wkt = ds.GetProjectionRef()
gdal.PopErrorHandler()
assert gdal.GetLastErrorMsg() != "", "warning expected"
sr2 = osr.SpatialReference()
sr2.SetFromUserInput(wkt)
ds = None
sr = osr.SpatialReference()
# EPSG:7400 without the Authority
sr.SetFromUserInput(
"""PROJCS["Global Mercator",
GEOGCS["NAD83",
DATUM["North_American_Datum_1983",
SPHEROID["GRS 1980",6378137,298.2572221010002,
AUTHORITY["EPSG","7019"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6269"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4269"]],
PROJECTION["Mercator_2SP"],
PARAMETER["standard_parallel_1",47.667],
PARAMETER["central_meridian",0],
PARAMETER["false_easting",0],
PARAMETER["false_northing",0],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]]]"""
)
assert sr.IsSame(sr2) == 1, "did not get expected SRS"
###############################################################################
# Test reading ESRI WGS_1984_Web_Mercator_Auxiliary_Sphere
def test_tiff_srs_WGS_1984_Web_Mercator_Auxiliary_Sphere():
ds = gdal.Open("data/WGS_1984_Web_Mercator_Auxiliary_Sphere.tif")
wkt = ds.GetProjectionRef()
sr = osr.SpatialReference()
sr.SetFromUserInput(wkt)
wkt = sr.ExportToPrettyWkt()
ds = None
assert (
wkt
== """PROJCS["WGS 84 / Pseudo-Mercator",
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4326"]],
PROJECTION["Mercator_1SP"],
PARAMETER["central_meridian",0],
PARAMETER["scale_factor",1],
PARAMETER["false_easting",0],
PARAMETER["false_northing",0],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Easting",EAST],
AXIS["Northing",NORTH],
EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs"]]"""
)
###############################################################################
# Test reading ESRI:102113 WGS_1984_Web_Mercator
def test_tiff_srs_WGS_1984_Web_Mercator():
ds = gdal.Open("data/WGS_1984_Web_Mercator.tif")
sr = ds.GetSpatialRef()
ds = None
assert sr.GetAuthorityName(None) == "ESRI"
assert sr.GetAuthorityCode(None) == "102113"
###############################################################################
# Test writing and reading various angular units
def test_tiff_srs_angular_units():
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (arc-second)",
DATUM["WGS_1984 (arc-second)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["arc-second",4.848136811095361e-06]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["arc-second",4.84813681109536E-06' in wkt
ds = None
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (arc-minute)",
DATUM["WGS_1984 (arc-minute)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["arc-minute",0.0002908882086657216]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["arc-minute",0.000290888208665722]' in wkt
ds = None
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (grad)",
DATUM["WGS_1984 (grad)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["grad",0.01570796326794897]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["grad",0.015707963267949' in wkt
ds = None
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (gon)",
DATUM["WGS_1984 (gon)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["gon",0.01570796326794897]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["gon",0.015707963267949]' in wkt
ds = None
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (radian)",
DATUM["WGS_1984 (radian)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["radian",1]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["radian",1]' in wkt
ds = None
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_angular_units.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 (custom)",
DATUM["WGS_1984 (custom)",
SPHEROID["WGS 84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["custom",1.23]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_angular_units.tif")
wkt = ds.GetProjectionRef()
assert 'UNIT["custom",1.23]' in wkt
ds = None
gdal.Unlink("/vsimem/tiff_srs_angular_units.tif")
###############################################################################
# Test writing and reading a unknown datum but with a known ellipsoid
def test_tiff_custom_datum_known_ellipsoid():
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_custom_datum_known_ellipsoid.tif", 1, 1
)
ds.SetProjection(
"""GEOGCS["WGS 84 based",
DATUM["WGS_1984_based",
SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]]],
PRIMEM["Greenwich",0],
UNIT["degree",1]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_custom_datum_known_ellipsoid.tif")
wkt = ds.GetProjectionRef()
assert (
wkt
== 'GEOGCS["WGS 84 based",DATUM["WGS_1984_based",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AXIS["Latitude",NORTH],AXIS["Longitude",EAST]]'
)
ds = None
gdal.Unlink("/vsimem/tiff_custom_datum_known_ellipsoid.tif")
###############################################################################
# Test reading a GeoTIFF file with only PCS set, but with a ProjLinearUnitsGeoKey
# override to another unit (us-feet) ... (#6210)
def test_tiff_srs_epsg_2853_with_us_feet():
old_val = gdal.GetConfigOption("GTIFF_IMPORT_FROM_EPSG")
gdal.SetConfigOption("GTIFF_IMPORT_FROM_EPSG", "YES")
ds = gdal.Open("data/epsg_2853_with_us_feet.tif")
gdal.SetConfigOption("GTIFF_IMPORT_FROM_EPSG", old_val)
wkt = ds.GetProjectionRef()
assert (
'PARAMETER["false_easting",11482916.66' in wkt
and 'UNIT["us_survey_feet",0.3048006' in wkt
and "2853" not in wkt
)
gdal.SetConfigOption("GTIFF_IMPORT_FROM_EPSG", "NO")
ds = gdal.Open("data/epsg_2853_with_us_feet.tif")
gdal.SetConfigOption("GTIFF_IMPORT_FROM_EPSG", old_val)
wkt = ds.GetProjectionRef()
assert (
'PARAMETER["false_easting",11482916.66' in wkt
and 'UNIT["us_survey_feet",0.3048006' in wkt
and "2853" not in wkt
)
###############################################################################
# Test reading a SRS with a PCSCitationGeoKey = "LUnits = ..."
def test_tiff_srs_PCSCitationGeoKey_LUnits():
ds = gdal.GetDriverByName("GTiff").Create(
"/vsimem/tiff_srs_PCSCitationGeoKey_LUnits.tif", 1, 1
)
ds.SetProjection(
"""PROJCS["UTM Zone 32, Northern Hemisphere",
GEOGCS["GRS 1980(IUGG, 1980)",
DATUM["unknown",
SPHEROID["GRS80",6378137,298.257222101],
TOWGS84[0,0,0,0,0,0,0]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",9],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",50000000],
PARAMETER["false_northing",0],
UNIT["Centimeter",0.01]]"""
)
ds = None
ds = gdal.Open("/vsimem/tiff_srs_PCSCitationGeoKey_LUnits.tif")
wkt = ds.GetProjectionRef()
assert (
wkt
== 'PROJCS["UTM Zone 32, Northern Hemisphere",GEOGCS["GRS 1980(IUGG, 1980)",DATUM["unknown",SPHEROID["GRS80",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",9],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",50000000],PARAMETER["false_northing",0],UNIT["Centimeter",0.01],AXIS["Easting",EAST],AXIS["Northing",NORTH]]'
)
ds = None
gdal.Unlink("/vsimem/tiff_srs_PCSCitationGeoKey_LUnits.tif")
###############################################################################
# Test reading a geotiff key ProjectionGeoKey (Short,1): Unknown-3856
def test_tiff_srs_projection_3856():
ds = gdal.Open("data/projection_3856.tif")
wkt = ds.GetProjectionRef()
ds = None
assert (
'EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k=1 +units=m +nadgrids=@null +wktext +no_defs'
in wkt
)
###############################################################################
# Test reading a geotiff with a LOCAL_CS and a Imagine citation
def test_tiff_srs_imagine_localcs_citation():
ds = gdal.Open("data/imagine_localcs_citation.tif")
wkt = ds.GetProjectionRef()
ds = None
assert wkt.startswith(
'LOCAL_CS["Projection Name = UTM Units = meters GeoTIFF Units = meters"'
)
###############################################################################
# Test reading a geotiff with a EPSG code and a TOWGS84 key that must
# override the default coming from EPSG
def test_tiff_srs_towgs84_override_OSR_STRIP_TOWGS84_NO():
with gdaltest.config_option("OSR_STRIP_TOWGS84", "NO"):
ds = gdal.Open("data/gtiff_towgs84_override.tif")
wkt = ds.GetProjectionRef()
ds = None
assert "TOWGS84[584.8,67,400.3,0.105,0.013,-2.378,10.29]" in wkt, wkt
def test_tiff_srs_towgs84_override_OSR_STRIP_TOWGS84_default():
ds = gdal.Open("data/gtiff_towgs84_override.tif")
wkt = ds.GetProjectionRef()
ds = None
assert "TOWGS84" not in wkt
###############################################################################
# Test reading PCSCitationGeoKey (#7199)
def test_tiff_srs_pcscitation():
ds = gdal.Open("data/pcscitation.tif")
wkt = ds.GetProjectionRef()
ds = None
assert wkt.startswith('PROJCS["mycitation",')
###############################################################################
# Test reading file with ProjectedCSTypeGeoKey and GeographicTypeGeoKey
def test_tiff_srs_ProjectedCSTypeGeoKey_GeographicTypeGeoKey():
ds = gdal.Open("data/utmsmall.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "26711"
def _test_tiff_srs(sr, expect_fail):
"""
This is not a test by itself; it gets called by the tests below.
"""
ds = gdal.GetDriverByName("GTiff").Create("/vsimem/TestTiffSRS.tif", 1, 1)
ds.SetSpatialRef(sr)
ds = None
# The GeoTIFF driver is smart enough to figure out that a CRS with
# '+proj=longlat +datum=WGS84' is EPSG:4326
if (
sr.GetAuthorityCode(None) is None
and "+proj=longlat +datum=WGS84" in sr.ExportToProj4()
):
sr.ImportFromEPSG(4326)
ds = gdal.Open("/vsimem/TestTiffSRS.tif")
sr2 = ds.GetSpatialRef()
if "Miller" in sr2.ExportToWkt():
# Trick so that the EXTENSION node with a PROJ string including +R_A is added
sr2.ImportFromProj4(sr2.ExportToProj4())
ds = None
gdal.Unlink("/vsimem/TestTiffSRS.tif")
if sr.IsSame(sr2) != 1:
if expect_fail:
pytest.xfail(
"did not get expected SRS. known to be broken currently. FIXME!"
)
# print(sr.ExportToWkt(['FORMAT=WKT2_2019']))
# print(sr2.ExportToWkt(['FORMAT=WKT2_2019']))
print(sr)
print(sr2)
assert False, "did not get expected SRS"
else:
if expect_fail:
print("Succeeded but expected fail...")
###############################################################################
# Write a geotiff and read it back to check its SRS
epsg_list = [
[3814, False], # tmerc
[28991, False], # sterea
# [2046, False], # tmerc south oriented DISABLED. Not sure about the axis
[3031, False], # polar stere (ticket #3220)
[3032, False], # polar stere (ticket #3220)
[32661, False], # stere
[3408, False], # laea
[2062, False], # lcc 1SP
# [2065, True], # krovak South-West
[5221, True], # krovak east-north
[2066, False], # cass
[2964, False], # aea
# [3410, False], # cea spherical, method=9834. EPSG:3410 is now deprecated
[6933, False], # cea ellipsoidal, method=9835
# [3786, False], # eqc spherical, method=9823. EPSG:3786 is now deprecated
[32663, False], # eqc elliptical, method=9842
[4087, False], # eqc WGS 84 / World Equidistant Cylindrical method=1028
[4088, False], # eqc World Equidistant Cylindrical (Sphere) method=1029
[2934, False], # merc
[27200, False], # nzmg
[2057, False], # omerc Hotine_Oblique_Mercator_Azimuth_Center
[3591, False], # omerc Hotine_Oblique_Mercator
[29100, False], # poly
[2056, False], # somerc
[2027, False], # utm
[4326, False], # longlat
[26943, False], # lcc 2SP,
[4328, False], # geocentric
[3994, False], # mercator 2SP
[26920, False], # UTM NAD83 special case
[26720, False], # UTM NAD27 special case
[32630, False], # UTM WGS84 north special case
[32730, False], # UTM WGS84 south special case
[22700, False], # unknown datum 'Deir_ez_Zor'
[3857, True], # Web Mercator
[102113, True], # ESRI WGS_1984_Web_Mercator
]
@pytest.mark.parametrize("use_epsg_code", [0, 1])
@pytest.mark.parametrize(
"epsg_code,epsg_proj4_broken",
epsg_list,
ids=[str(r[0]) for r in epsg_list],
)
def test_tiff_srs(use_epsg_code, epsg_code, epsg_proj4_broken):
sr = osr.SpatialReference()
if epsg_code > 32767:
sr.SetFromUserInput("ESRI:" + str(epsg_code))
else:
sr.ImportFromEPSG(epsg_code)
sr.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER)
expect_fail = False
if use_epsg_code == 0:
proj4str = sr.ExportToProj4()
# print(proj4str)
sr.SetFromUserInput(proj4str)
expect_fail = epsg_proj4_broken
_test_tiff_srs(sr, expect_fail)
@pytest.mark.parametrize(
"proj4",
[
'+proj=eqdc +lat_0=%.16g +lon_0=%.16g +lat_1=%.16g +lat_2=%.16g" +x_0=%.16g +y_0=%.16g'
% (1, 2, 3, 4, 5, 6),
"+proj=mill +R_A +lon_0=2 +x_0=3 +y_0=4 +datum=WGS84 +units=m +no_defs",
"+proj=gnom +lat_0=%.16g +lon_0=%.16g +x_0=%.16g +y_0=%.16g" % (1, 2, 3, 4),
"+proj=robin +lon_0=%.16g +x_0=%.16g +y_0=%.16g" % (1, 2, 3),
"+proj=sinu +lon_0=%.16g +x_0=%.16g +y_0=%.16g" % (1, 2, 3),
],
ids=[
"eqdc",
"mill",
"gnom",
"robin",
"sinu",
],
)
def test_tiff_srs_proj4(proj4):
sr = osr.SpatialReference()
sr.SetFromUserInput(proj4)
_test_tiff_srs(sr, False)
def _create_geotiff1_1_from_copy_and_compare(srcfilename, options=[]):
if int(gdal.GetDriverByName("GTiff").GetMetadataItem("LIBGEOTIFF")) < 1600:
pytest.skip()
src_ds = gdal.Open(srcfilename)
tmpfile = "/vsimem/tmp.tif"
gdal.GetDriverByName("GTiff").CreateCopy(
tmpfile, src_ds, options=options + ["ENDIANNESS=LITTLE"]
)
f = gdal.VSIFOpenL(tmpfile, "rb")
data = gdal.VSIFReadL(1, 100000, f)
gdal.VSIFCloseL(f)
gdal.Unlink(tmpfile)
assert data == open(src_ds.GetDescription(), "rb").read()
def test_tiff_srs_read_epsg4326_geotiff1_1():
ds = gdal.Open("data/epsg4326_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "4326"
def test_tiff_srs_write_epsg4326_geotiff1_1():
_create_geotiff1_1_from_copy_and_compare(
"data/epsg4326_geotiff1_1.tif", options=["GEOTIFF_VERSION=1.1"]
)
def test_tiff_srs_read_epsg26711_geotiff1_1():
ds = gdal.Open("data/epsg26711_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "26711"
def test_tiff_srs_write_epsg26711_geotiff1_1():
_create_geotiff1_1_from_copy_and_compare(
"data/epsg26711_geotiff1_1.tif", options=["GEOTIFF_VERSION=1.1"]
)
def test_tiff_srs_read_epsg4326_3855_geotiff1_1():
ds = gdal.Open("data/epsg4326_3855_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetName() == "WGS 84 + EGM2008 height"
assert sr.GetAuthorityCode("COMPD_CS|GEOGCS") == "4326"
assert sr.GetAuthorityCode("COMPD_CS|VERT_CS") == "3855"
def test_tiff_srs_write_epsg4326_3855_geotiff1_1():
_create_geotiff1_1_from_copy_and_compare("data/epsg4326_3855_geotiff1_1.tif")
def test_tiff_srs_read_epsg4979_geotiff1_1():
ds = gdal.Open("data/epsg4979_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "4979"
def test_tiff_srs_write_epsg4979_geotiff1_1():
_create_geotiff1_1_from_copy_and_compare("data/epsg4979_geotiff1_1.tif")
def test_tiff_srs_write_epsg4937_etrs89_3D_geotiff1_1():
if int(gdal.GetDriverByName("GTiff").GetMetadataItem("LIBGEOTIFF")) < 1600:
pytest.skip()
tmpfile = "/vsimem/tmp.tif"
ds = gdal.GetDriverByName("GTiff").Create(tmpfile, 1, 1)
sr = osr.SpatialReference()
sr.ImportFromEPSG(4937)
ds.SetSpatialRef(sr)
ds = None
ds = gdal.Open(tmpfile)
assert sr.GetName() == "ETRS89"
assert sr.GetAuthorityCode(None) == "4937"
ds = None
gdal.Unlink(tmpfile)
# Deprecated way of conveying GeographicCRS 3D
def test_tiff_srs_read_epsg4326_5030_geotiff1_1():
ds = gdal.Open("data/epsg4326_5030_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "4979"
def test_tiff_srs_read_epsg26711_3855_geotiff1_1():
ds = gdal.Open("data/epsg26711_3855_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.GetName() == "NAD27 / UTM zone 11N + EGM2008 height"
assert sr.GetAuthorityCode("COMPD_CS|PROJCS") == "26711"
assert sr.GetAuthorityCode("COMPD_CS|VERT_CS") == "3855"
def test_tiff_srs_write_epsg26711_3855_geotiff1_1():
_create_geotiff1_1_from_copy_and_compare("data/epsg26711_3855_geotiff1_1.tif")
# ProjectedCRS 3D not really defined yet in GeoTIFF 1.1, but this is
# a natural extension
def test_tiff_srs_read_epsg32631_4979_geotiff1_1():
ds = gdal.Open("data/epsg32631_4979_geotiff1_1.tif")
sr = ds.GetSpatialRef()
assert sr.IsProjected()
assert sr.GetAxesCount() == 3
assert sr.GetName() == "WGS 84 / UTM zone 31N"
sr_geog = osr.SpatialReference()
sr_geog.CopyGeogCSFrom(sr)
assert sr_geog.GetAuthorityCode(None) == "4979"
def test_tiff_srs_write_vertical_perspective():
if osr.GetPROJVersionMajor() * 100 + osr.GetPROJVersionMinor() < 700:
pytest.skip("requires PROJ 7 or later")
ds = gdal.GetDriverByName("GTiff").Create("/vsimem/src.tif", 1, 1)
sr = osr.SpatialReference()
sr.SetGeogCS("GEOG_NAME", "D_DATUM_NAME", "", 3000000, 0)
sr.SetVerticalPerspective(1, 2, 0, 1000, 0, 0)
gdal.ErrorReset()
ds.SetSpatialRef(sr)
assert gdal.GetLastErrorMsg() == ""
ds = None
src_ds = gdal.Open("/vsimem/src.tif")
# First is PROJ 7
assert src_ds.GetSpatialRef().ExportToProj4() in (
"+proj=nsper +lat_0=1 +lon_0=2 +h=1000 +x_0=0 +y_0=0 +R=3000000 +units=m +no_defs",
"+proj=nsper +R=3000000 +lat_0=1 +lon_0=2 +h=1000 +x_0=0 +y_0=0 +wktext +no_defs",
)
gdal.ErrorReset()
gdal.GetDriverByName("GTiff").CreateCopy("/vsimem/dst.tif", src_ds)
assert gdal.GetLastErrorMsg() == ""
ds = gdal.Open("/vsimem/dst.tif")
assert ds.GetSpatialRef().ExportToProj4() == src_ds.GetSpatialRef().ExportToProj4()
src_ds = None
ds = None
gdal.GetDriverByName("GTiff").Delete("/vsimem/src.tif")
gdal.GetDriverByName("GTiff").Delete("/vsimem/dst.tif")
def test_tiff_srs_write_ob_tran_eqc():
ds = gdal.GetDriverByName("GTiff").Create("/vsimem/src.tif", 1, 1)
sr = osr.SpatialReference()
sr.ImportFromProj4(
"+proj=ob_tran +o_proj=eqc +o_lon_p=-90 +o_lat_p=180 +lon_0=0 +R=3396190 +units=m +no_defs"
)
ds.SetSpatialRef(sr)
ds = None
assert gdal.VSIStatL("/vsimem/src.tif.aux.xml")
ds = gdal.Open("/vsimem/src.tif")
assert (
ds.GetSpatialRef().ExportToProj4()
== "+proj=ob_tran +o_proj=eqc +o_lon_p=-90 +o_lat_p=180 +lon_0=0 +R=3396190 +units=m +no_defs"
)
ds = None
gdal.GetDriverByName("GTiff").Delete("/vsimem/src.tif")
def test_tiff_srs_towgs84_from_epsg_do_not_write_it():
filename = "/vsimem/test.tif"
ds = gdal.GetDriverByName("GTiff").Create(filename, 1, 1)
srs_in = osr.SpatialReference()
srs_in.ImportFromEPSG(31468)
srs_in.AddGuessedTOWGS84()
assert srs_in.HasTOWGS84()
ds.SetSpatialRef(srs_in)
ds = None
ds = gdal.Open(filename)
with gdaltest.config_option("OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG", "NO"):
srs = ds.GetSpatialRef()
assert not srs.HasTOWGS84()
def test_tiff_srs_towgs84_from_epsg_force_write_it():
filename = "/vsimem/test.tif"
ds = gdal.GetDriverByName("GTiff").Create(filename, 1, 1)
srs_in = osr.SpatialReference()
srs_in.ImportFromEPSG(31468)
srs_in.AddGuessedTOWGS84()
assert srs_in.HasTOWGS84()
with gdaltest.config_option("GTIFF_WRITE_TOWGS84", "YES"):
ds.SetSpatialRef(srs_in)
ds = None
with gdaltest.config_option("OSR_STRIP_TOWGS84", "NO"):
ds = gdal.Open(filename)
with gdaltest.config_option("OSR_ADD_TOWGS84_ON_IMPORT_FROM_EPSG", "NO"):
srs = ds.GetSpatialRef()
assert srs.HasTOWGS84()
def test_tiff_srs_towgs84_with_epsg_code_but_non_default_TOWGS84():
filename = "/vsimem/test.tif"
ds = gdal.GetDriverByName("GTiff").Create(filename, 1, 1)
srs_in = osr.SpatialReference()
srs_in.SetFromUserInput(
"""PROJCS["DHDN / 3-degree Gauss-Kruger zone 4",
GEOGCS["DHDN",
DATUM["Deutsches_Hauptdreiecksnetz",
SPHEROID["Bessel 1841",6377397.155,299.1528128,
AUTHORITY["EPSG","7004"]],
TOWGS84[1,2,3,4,5,6,7],
AUTHORITY["EPSG","6314"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4314"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",12],
PARAMETER["scale_factor",1],
PARAMETER["false_easting",4500000],
PARAMETER["false_northing",0],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Northing",NORTH],
AXIS["Easting",EAST],
AUTHORITY["EPSG","31468"]]"""
)
ds.SetSpatialRef(srs_in)
ds = None
with gdaltest.config_option("OSR_STRIP_TOWGS84", "NO"):
ds = gdal.Open(filename)
srs = ds.GetSpatialRef()
assert srs.GetTOWGS84() == (1, 2, 3, 4, 5, 6, 7)
def test_tiff_srs_write_epsg3857():
tmpfile = "/vsimem/tmp.tif"
ds = gdal.GetDriverByName("GTiff").Create(tmpfile, 1, 1)
sr = osr.SpatialReference()
sr.ImportFromEPSG(3857)
ds.SetSpatialRef(sr)
ds = None
ds = gdal.Open(tmpfile)
assert sr.GetName() == "WGS 84 / Pseudo-Mercator"
assert sr.GetAuthorityCode(None) == "3857"
f = gdal.VSIFOpenL(tmpfile, "rb")
data = gdal.VSIFReadL(1, 100000, f)
gdal.VSIFCloseL(f)
gdal.Unlink(tmpfile)
assert b"ESRI PE String" not in data
def test_tiff_srs_read_epsg26730_with_linear_units_set():
ds = gdal.Open("data/epsg26730_with_linear_units_set.tif")
sr = ds.GetSpatialRef()
assert sr.GetAuthorityCode(None) == "26730"
def test_tiff_srs_read_user_defined_geokeys():
if int(gdal.GetDriverByName("GTiff").GetMetadataItem("LIBGEOTIFF")) < 1600:
pytest.skip()
gdal.ErrorReset()
ds = gdal.Open("data/byte_user_defined_geokeys.tif")
sr = ds.GetSpatialRef()
assert gdal.GetLastErrorMsg() == ""
assert sr is not None
def test_tiff_srs_read_compoundcrs_without_gtcitation():
if int(gdal.GetDriverByName("GTiff").GetMetadataItem("LIBGEOTIFF")) < 1600:
pytest.skip()
ds = gdal.Open("data/gtiff/compdcrs_without_gtcitation.tif")
sr = ds.GetSpatialRef()
assert sr.GetName() == "WGS 84 / UTM zone 32N + EGM08_Geoid"
def test_tiff_srs_read_getspatialref_getgcpspatialref():
ds = gdal.Open("data/byte.tif")
assert ds.GetSpatialRef() is not None
assert ds.GetGCPSpatialRef() is None
ds = gdal.Open("data/byte.tif")
assert ds.GetGCPSpatialRef() is None
assert ds.GetSpatialRef() is not None
ds = gdal.Open("data/byte.tif")
assert ds.GetSpatialRef() is not None
assert ds.GetSpatialRef() is not None
assert ds.GetGCPSpatialRef() is None
assert ds.GetGCPSpatialRef() is None
ds = gdal.Open("data/byte_gcp_pixelispoint.tif")
assert ds.GetSpatialRef() is None
assert ds.GetGCPSpatialRef() is not None
ds = gdal.Open("data/byte_gcp_pixelispoint.tif")
assert ds.GetGCPSpatialRef() is not None
assert ds.GetSpatialRef() is None
ds = gdal.Open("data/byte_gcp_pixelispoint.tif")
assert ds.GetGCPSpatialRef() is not None
assert ds.GetGCPSpatialRef() is not None
assert ds.GetSpatialRef() is None
assert ds.GetSpatialRef() is None
def test_tiff_srs_read_VerticalUnitsGeoKey_private_range():
ds = gdal.Open("data/gtiff/VerticalUnitsGeoKey_private_range.tif")
with gdaltest.error_handler():
sr = ds.GetSpatialRef()
assert sr.GetName() == "NAD83 / UTM zone 16N"
assert gdal.GetLastErrorMsg() != ""
def test_tiff_srs_read_invalid_semimajoraxis_compound():
ds = gdal.Open("data/gtiff/invalid_semimajoraxis_compound.tif")
# Check that it doesn't crash. PROJ >= 8.2.0 will return a NULL CRS
# whereas previous versions will return a non-NULL one
with gdaltest.error_handler():
ds.GetSpatialRef()
def test_tiff_srs_try_write_derived_geographic():
if osr.GetPROJVersionMajor() < 7:
pytest.skip()
tmpfile = "/vsimem/tmp.tif"
ds = gdal.GetDriverByName("GTiff").Create(tmpfile, 1, 1)
wkt = 'GEOGCRS["Coordinate System imported from GRIB file",BASEGEOGCRS["Coordinate System imported from GRIB file",DATUM["unnamed",ELLIPSOID["Sphere",6367470,0,LENGTHUNIT["metre",1,ID["EPSG",9001]]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]]],DERIVINGCONVERSION["Pole rotation (GRIB convention)",METHOD["Pole rotation (GRIB convention)"],PARAMETER["Latitude of the southern pole (GRIB convention)",-30,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]],PARAMETER["Longitude of the southern pole (GRIB convention)",-15,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]],PARAMETER["Axis rotation (GRIB convention)",0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]]],CS[ellipsoidal,2],AXIS["latitude",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]],AXIS["longitude",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]]]'
ds.SetProjection(wkt)
ds = None
assert gdal.VSIStatL(tmpfile + ".aux.xml")
ds = gdal.Open(tmpfile)
srs = ds.GetSpatialRef()
assert srs is not None
assert srs.IsDerivedGeographic()
ds = None
gdal.Unlink(tmpfile + ".aux.xml")
ds = gdal.Open(tmpfile)
assert ds.GetSpatialRef() is None
ds = None
gdal.Unlink(tmpfile)
def test_tiff_srs_read_GeogGeodeticDatumGeoKey_reserved_range():
ds = gdal.Open("data/gtiff/GeogGeodeticDatumGeoKey_reserved.tif")
with gdaltest.error_handler():
sr = ds.GetSpatialRef()
assert sr.GetName() == "WGS 84 / Pseudo-Mercator"
assert gdal.GetLastErrorMsg() != ""
assert gdal.GetLastErrorType() == gdal.CE_Warning
def test_tiff_srs_read_buggy_sentinel1_ellipsoid_code_4326():
# That file has GeogEllipsoidGeoKey=4326, instead of 7030
ds = gdal.Open("data/gtiff/buggy_sentinel1_ellipsoid_code_4326.tif")
sr = ds.GetSpatialRef()
assert gdal.GetLastErrorMsg() == ""
assert sr.GetAuthorityCode("GEOGCS|DATUM|SPHEROID") == "7030"