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pdf.py
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#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
#
# Project: GDAL/OGR Test Suite
# Purpose: PDF Testing.
# Author: Even Rouault <even.rouault at spatialys.com>
#
###############################################################################
# Copyright (c) 2010-2019, Even Rouault <even.rouault at spatialys.com>
#
# SPDX-License-Identifier: MIT
###############################################################################
import json
import os
import shutil
import sys
import gdaltest
import ogrtest
import pytest
from osgeo import gdal, ogr, osr
pytestmark = pytest.mark.require_driver("PDF")
###############################################################################
@pytest.fixture(autouse=True, scope="module")
def module_disable_exceptions():
with gdaltest.disable_exceptions():
yield
###############################################################################
# Test driver presence
@pytest.fixture(params=["POPPLER", "PODOFO", "PDFIUM"])
def poppler_or_pdfium_or_podofo(request):
"""
Runs tests with all three backends.
"""
backend = request.param
gdaltest.pdf_drv = gdal.GetDriverByName("PDF")
md = gdaltest.pdf_drv.GetMetadata()
if "HAVE_%s" % backend not in md:
pytest.skip()
with gdaltest.config_option("GDAL_PDF_LIB", backend):
yield backend
@pytest.fixture(params=["POPPLER", "PDFIUM"])
def poppler_or_pdfium(request):
"""
Runs tests with poppler or pdfium, but not podofo
"""
backend = request.param
gdaltest.pdf_drv = gdal.GetDriverByName("PDF")
md = gdaltest.pdf_drv.GetMetadata()
if "HAVE_%s" % backend not in md:
pytest.skip()
with gdaltest.config_option("GDAL_PDF_LIB", backend):
yield backend
def have_read_support():
drv = gdal.GetDriverByName("PDF")
if drv is None:
return False
md = drv.GetMetadata()
return "HAVE_POPPLER" in md or "HAVE_PDFIUM" in md or "HAVE_PODOFO" in md
###############################################################################
# Returns True if we run with poppler
def pdf_is_poppler():
md = gdaltest.pdf_drv.GetMetadata()
val = gdal.GetConfigOption("GDAL_PDF_LIB", "POPPLER")
if val == "POPPLER" and "HAVE_POPPLER" in md:
return not pdf_is_pdfium()
return False
###############################################################################
# Returns True if we run with pdfium
def pdf_is_pdfium():
md = gdaltest.pdf_drv.GetMetadata()
val = gdal.GetConfigOption("GDAL_PDF_LIB", "PDFIUM")
if val == "PDFIUM" and "HAVE_PDFIUM" in md:
return True
return False
###############################################################################
# Returns True if we can compute the checksum
def pdf_checksum_available():
try:
ret = gdaltest.pdf_is_checksum_available
if ret is True or ret is False:
return ret
except AttributeError:
pass
if pdf_is_poppler() or pdf_is_pdfium():
gdaltest.pdf_is_checksum_available = True
return gdaltest.pdf_is_checksum_available
(_, err) = gdaltest.runexternal_out_and_err("pdftoppm -v")
if err.startswith("pdftoppm version"):
gdaltest.pdf_is_checksum_available = True
return gdaltest.pdf_is_checksum_available
print("Cannot compute to checksum due to missing pdftoppm")
print(err)
gdaltest.pdf_is_checksum_available = False
return gdaltest.pdf_is_checksum_available
###############################################################################
# Test OGC best practice geospatial PDF
def test_pdf_online_1(poppler_or_pdfium):
gdaltest.download_or_skip(
"http://www.agc.army.mil/GeoPDFgallery/Imagery/Cherrydale_eDOQQ_1m_0_033_R1C1.pdf",
"Cherrydale_eDOQQ_1m_0_033_R1C1.pdf",
)
try:
os.stat("tmp/cache/Cherrydale_eDOQQ_1m_0_033_R1C1.pdf")
except OSError:
pytest.skip()
ds = gdal.Open("tmp/cache/Cherrydale_eDOQQ_1m_0_033_R1C1.pdf")
assert ds is not None
assert ds.RasterXSize == 1241, "bad dimensions"
gt = ds.GetGeoTransform()
wkt = ds.GetProjectionRef()
if pdf_is_pdfium():
expected_gt = (
-77.11232757568358,
9.166339328135623e-06,
0.0,
38.89784240741306,
0.0,
-9.166503628631888e-06,
)
elif pdf_is_poppler():
expected_gt = (
-77.112328333299999,
9.1666559999999995e-06,
0.0,
38.897842488372,
-0.0,
-9.1666559999999995e-06,
)
else:
expected_gt = (
-77.112328333299956,
9.1666560000051172e-06,
0.0,
38.897842488371978,
0.0,
-9.1666560000046903e-06,
)
for i in range(6):
if gt[i] != pytest.approx(expected_gt[i], abs=1e-15):
# The remote file has been updated...
other_expected_gt = (
-77.112328333299928,
9.1666560000165691e-06,
0.0,
38.897842488371978,
0.0,
-9.1666560000046903e-06,
)
for j in range(6):
assert gt[j] == pytest.approx(
other_expected_gt[j], abs=1e-15
), "bad geotransform"
assert wkt.startswith('GEOGCS["WGS 84"'), "bad WKT"
if pdf_checksum_available():
cs = ds.GetRasterBand(1).Checksum()
assert cs != 0, "bad checksum"
###############################################################################
def test_pdf_online_2(poppler_or_pdfium):
try:
os.stat("tmp/cache/Cherrydale_eDOQQ_1m_0_033_R1C1.pdf")
except OSError:
pytest.skip()
ds = gdal.Open("PDF:1:tmp/cache/Cherrydale_eDOQQ_1m_0_033_R1C1.pdf")
assert ds is not None
gt = ds.GetGeoTransform()
wkt = ds.GetProjectionRef()
if pdf_is_pdfium():
expected_gt = (
-77.11232757568358,
9.166339328135623e-06,
0.0,
38.89784240741306,
0.0,
-9.166503628631888e-06,
)
elif pdf_is_poppler():
expected_gt = (
-77.112328333299999,
9.1666559999999995e-06,
0.0,
38.897842488372,
-0.0,
-9.1666559999999995e-06,
)
else:
expected_gt = (
-77.112328333299956,
9.1666560000051172e-06,
0.0,
38.897842488371978,
0.0,
-9.1666560000046903e-06,
)
for i in range(6):
if gt[i] != pytest.approx(expected_gt[i], abs=1e-15):
# The remote file has been updated...
other_expected_gt = (
-77.112328333299928,
9.1666560000165691e-06,
0.0,
38.897842488371978,
0.0,
-9.1666560000046903e-06,
)
for j in range(6):
assert gt[j] == pytest.approx(
other_expected_gt[j], abs=1e-15
), "bad geotransform"
assert wkt.startswith('GEOGCS["WGS 84"')
###############################################################################
# Test Adobe style geospatial pdf
def test_pdf_1(poppler_or_pdfium):
with gdal.config_option("GDAL_PDF_DPI", "200"):
ds = gdal.Open("data/pdf/adobe_style_geospatial.pdf")
assert ds is not None
gt = ds.GetGeoTransform()
wkt = ds.GetProjectionRef()
if pdf_is_pdfium():
expected_gt = (
333274.5701626293,
31.765012397640078,
0.0,
4940391.755002656,
0.0,
-31.794694104865194,
)
else:
expected_gt = (
333274.61654367246,
31.764802242655662,
0.0,
4940391.7593506984,
0.0,
-31.794745501708238,
)
for i in range(6):
assert gt[i] == pytest.approx(expected_gt[i], abs=1e-6), "bad geotransform"
expected_wkt = 'PROJCS["WGS 84 / UTM zone 20N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],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]]'
assert wkt == expected_wkt, "bad WKT"
if pdf_checksum_available():
cs = ds.GetRasterBand(1).Checksum()
# if cs != 17740 and cs != 19346:
assert cs != 0, "bad checksum"
neatline = ds.GetMetadataItem("NEATLINE")
got_geom = ogr.CreateGeometryFromWkt(neatline)
if pdf_is_pdfium():
expected_geom = ogr.CreateGeometryFromWkt(
"POLYGON ((338304.274926337 4896673.68220244,338304.206397453 4933414.86906802,382774.239238623 4933414.4314159,382774.990878249 4896674.38093959,338304.274926337 4896673.68220244))"
)
else:
expected_geom = ogr.CreateGeometryFromWkt(
"POLYGON ((338304.150125828920864 4896673.639421294443309,338304.177293475600891 4933414.799376524984837,382774.271384406310972 4933414.546264361590147,382774.767329963855445 4896674.273581005632877,338304.150125828920864 4896673.639421294443309))"
)
ogrtest.check_feature_geometry(got_geom, expected_geom)
###############################################################################
# Test write support with ISO32000 geo encoding
def test_pdf_iso32000(poppler_or_pdfium_or_podofo):
tst = gdaltest.GDALTest("PDF", "byte.tif", 1, None)
tst.testCreateCopy(
check_minmax=0,
check_gt=1,
check_srs=True,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test write support with ISO32000 geo encoding, with DPI=300
def test_pdf_iso32000_dpi_300(poppler_or_pdfium):
tst = gdaltest.GDALTest("PDF", "byte.tif", 1, None, options=["DPI=300"])
tst.testCreateCopy(
check_minmax=0,
check_gt=1,
check_srs=True,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test no compression
def test_pdf_no_compression(poppler_or_pdfium):
tst = gdaltest.GDALTest("PDF", "byte.tif", 1, None, options=["COMPRESS=NONE"])
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test compression methods
def _test_pdf_jpeg_compression(filename):
tst = gdaltest.GDALTest("PDF", filename, 1, None, options=["COMPRESS=JPEG"])
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
@pytest.mark.require_driver("JPEG")
def test_pdf_jpeg_compression(poppler_or_pdfium):
_test_pdf_jpeg_compression("byte.tif")
def pdf_get_J2KDriver(drv_name):
drv = gdal.GetDriverByName(drv_name)
if drv is None:
return None
if drv_name == "JP2ECW":
import ecw
if not ecw.has_write_support():
return None
return drv
@pytest.mark.parametrize(
"filename,drv_name",
[
("utm.tif", None),
("utm.tif", "JP2KAK"),
("utm.tif", "JP2ECW"),
("utm.tif", "JP2OpenJpeg"),
("rgbsmall.tif", "JP2ECW"),
],
)
def test_pdf_jpx_compression(filename, drv_name):
if drv_name is None:
if (
pdf_get_J2KDriver("JP2KAK") is None
and pdf_get_J2KDriver("JP2ECW") is None
and pdf_get_J2KDriver("JP2OpenJpeg") is None
and pdf_get_J2KDriver("JPEG2000") is None
):
pytest.skip()
elif pdf_get_J2KDriver(drv_name) is None:
pytest.skip()
if drv_name is None:
options = ["COMPRESS=JPEG2000"]
else:
options = ["COMPRESS=JPEG2000", "JPEG2000_DRIVER=%s" % drv_name]
tst = gdaltest.GDALTest("PDF", filename, 1, None, options=options)
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
@pytest.mark.require_driver("JPEG")
def test_pdf_jpeg_compression_rgb(poppler_or_pdfium):
return _test_pdf_jpeg_compression("rgbsmall.tif")
###############################################################################
# Test RGBA
def pdf_rgba_default_compression(options_param=None):
options_param = [] if options_param is None else options_param
if not pdf_checksum_available():
pytest.skip()
src_ds = gdal.Open("../gcore/data/stefan_full_rgba.tif")
out_ds = gdaltest.pdf_drv.CreateCopy("tmp/rgba.pdf", src_ds, options=options_param)
out_ds = None
# gdal.SetConfigOption('GDAL_PDF_BANDS', '4')
with gdal.config_options(
{"PDF_DUMP_OBJECT": "tmp/rgba.pdf.txt", "PDF_DUMP_PARENT": "YES"}
):
out_ds = gdal.Open("tmp/rgba.pdf")
content = open("tmp/rgba.pdf.txt", "rt").read()
os.unlink("tmp/rgba.pdf.txt")
cs1 = out_ds.GetRasterBand(1).Checksum()
cs2 = out_ds.GetRasterBand(2).Checksum()
cs3 = out_ds.GetRasterBand(3).Checksum()
if out_ds.RasterCount == 4:
cs4 = out_ds.GetRasterBand(4).Checksum()
else:
cs4 = -1
src_cs1 = src_ds.GetRasterBand(1).Checksum()
src_cs2 = src_ds.GetRasterBand(2).Checksum()
src_cs3 = src_ds.GetRasterBand(3).Checksum()
src_cs4 = src_ds.GetRasterBand(4).Checksum()
out_ds = None
# gdal.SetConfigOption('GDAL_PDF_BANDS', None)
gdal.GetDriverByName("PDF").Delete("tmp/rgba.pdf")
if cs4 < 0:
pytest.skip()
assert (
content.startswith("Type = dictionary, Num = 3, Gen = 0")
and " Type = dictionary, Num = 3, Gen = 0" in content
), "wrong object dump"
assert cs4 != 0, "wrong checksum"
if cs1 != src_cs1 or cs2 != src_cs2 or cs3 != src_cs3 or cs4 != src_cs4:
print(cs1)
print(cs2)
print(cs3)
print(cs4)
print(src_cs1)
print(src_cs2)
print(src_cs3)
print(src_cs4)
def test_pdf_rgba_default_compression_tiled(poppler_or_pdfium_or_podofo):
return pdf_rgba_default_compression(["BLOCKXSIZE=32", "BLOCKYSIZE=32"])
@pytest.mark.require_driver("JPEG")
def test_pdf_jpeg_compression_rgba(poppler_or_pdfium):
return _test_pdf_jpeg_compression("../../gcore/data/stefan_full_rgba.tif")
###############################################################################
# Test PREDICTOR=2
def test_pdf_predictor_2(poppler_or_pdfium):
tst = gdaltest.GDALTest("PDF", "utm.tif", 1, None, options=["PREDICTOR=2"])
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
def test_pdf_predictor_2_rgb(poppler_or_pdfium):
tst = gdaltest.GDALTest("PDF", "rgbsmall.tif", 1, None, options=["PREDICTOR=2"])
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test tiling
def test_pdf_tiled(poppler_or_pdfium):
tst = gdaltest.GDALTest(
"PDF", "utm.tif", 1, None, options=["COMPRESS=DEFLATE", "TILED=YES"]
)
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
def test_pdf_tiled_128(poppler_or_pdfium):
tst = gdaltest.GDALTest(
"PDF", "utm.tif", 1, None, options=["BLOCKXSIZE=128", "BLOCKYSIZE=128"]
)
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test raster with color table
@pytest.mark.require_driver("GIF")
def test_pdf_color_table(poppler_or_pdfium):
tst = gdaltest.GDALTest("PDF", "small_world_pct.tif", 1, None)
tst.testCreateCopy(
check_minmax=0,
check_gt=0,
check_srs=None,
check_checksum_not_null=pdf_checksum_available(),
)
###############################################################################
# Test XMP support
def test_pdf_xmp(poppler_or_pdfium):
src_ds = gdal.Open("data/pdf/adobe_style_geospatial_with_xmp.pdf")
gdaltest.pdf_drv.CreateCopy("tmp/pdf_xmp.pdf", src_ds, options=["WRITE_INFO=NO"])
out_ds = gdal.Open("tmp/pdf_xmp.pdf")
if out_ds is None:
# Some Poppler versions cannot re-open the file
gdal.GetDriverByName("PDF").Delete("tmp/pdf_xmp.pdf")
pytest.skip()
ref_md = src_ds.GetMetadata("xml:XMP")
got_md = out_ds.GetMetadata("xml:XMP")
base_md = out_ds.GetMetadata()
out_ds = None
src_ds = None
gdal.GetDriverByName("PDF").Delete("tmp/pdf_xmp.pdf")
assert ref_md[0] == got_md[0]
assert len(base_md) == 2
###############################################################################
# Test Info
def test_pdf_info(poppler_or_pdfium):
try:
val = "\xc3\xa9".decode("UTF-8")
except Exception:
val = "\u00e9"
options = [
"AUTHOR=%s" % val,
"CREATOR=creator",
"KEYWORDS=keywords",
"PRODUCER=producer",
"SUBJECT=subject",
"TITLE=title",
]
src_ds = gdal.Open("data/byte.tif")
out_ds = gdaltest.pdf_drv.CreateCopy("tmp/pdf_info.pdf", src_ds, options=options)
# print(out_ds.GetMetadata())
out_ds2 = gdaltest.pdf_drv.CreateCopy("tmp/pdf_info_2.pdf", out_ds)
md = out_ds2.GetMetadata()
# print(md)
out_ds2 = None
out_ds = None
src_ds = None
gdal.GetDriverByName("PDF").Delete("tmp/pdf_info.pdf")
gdal.GetDriverByName("PDF").Delete("tmp/pdf_info_2.pdf")
assert (
md["AUTHOR"] == val
and md["CREATOR"] == "creator"
and md["KEYWORDS"] == "keywords"
and md["PRODUCER"] == "producer"
and md["SUBJECT"] == "subject"
and md["TITLE"] == "title"
), "metadata doesn't match"
###############################################################################
# Check SetGeoTransform() / SetProjection()
def test_pdf_update_gt(poppler_or_pdfium_or_podofo):
src_ds = gdal.Open("data/byte.tif")
ds = gdaltest.pdf_drv.CreateCopy("tmp/pdf_update_gt.pdf", src_ds)
ds = None
src_ds = None
# Alter geotransform
ds = gdal.Open("tmp/pdf_update_gt.pdf", gdal.GA_Update)
sr = osr.SpatialReference()
sr.ImportFromEPSG(4326)
ds.SetProjection(sr.ExportToWkt())
ds.SetGeoTransform([2, 1, 0, 49, 0, -1])
ds = None
assert not os.path.exists("tmp/pdf_update_gt.pdf.aux.xml")
# Check geotransform
ds = gdal.Open("tmp/pdf_update_gt.pdf")
gt = ds.GetGeoTransform()
ds = None
expected_gt = [2, 1, 0, 49, 0, -1]
for i in range(6):
assert gt[i] == pytest.approx(
expected_gt[i], abs=1e-8
), "did not get expected gt"
# Clear geotransform
ds = gdal.Open("tmp/pdf_update_gt.pdf", gdal.GA_Update)
ds.SetProjection("")
ds = None
# Check geotransform
ds = gdal.Open("tmp/pdf_update_gt.pdf")
gt = ds.GetGeoTransform()
ds = None
expected_gt = [0.0, 1.0, 0.0, 0.0, 0.0, 1.0]
for i in range(6):
assert gt[i] == pytest.approx(
expected_gt[i], abs=1e-8
), "did not get expected gt"
# Set geotransform again
ds = gdal.Open("tmp/pdf_update_gt.pdf", gdal.GA_Update)
ds.SetProjection(sr.ExportToWkt())
ds.SetGeoTransform([3, 1, 0, 50, 0, -1])
ds = None
# Check geotransform
ds = gdal.Open("tmp/pdf_update_gt.pdf")
gt = ds.GetGeoTransform()
ds = None
expected_gt = [3, 1, 0, 50, 0, -1]
for i in range(6):
assert gt[i] == pytest.approx(
expected_gt[i], abs=1e-8
), "did not get expected gt"
gdaltest.pdf_drv.Delete("tmp/pdf_update_gt.pdf")
###############################################################################
# Check SetMetadataItem() for Info
def test_pdf_update_info(poppler_or_pdfium_or_podofo):
src_ds = gdal.Open("data/byte.tif")
ds = gdaltest.pdf_drv.CreateCopy("tmp/pdf_update_info.pdf", src_ds)
ds = None
src_ds = None
# Add info
ds = gdal.Open("tmp/pdf_update_info.pdf", gdal.GA_Update)
ds.SetMetadataItem("AUTHOR", "author")
ds = None
# Check
ds = gdal.Open("tmp/pdf_update_info.pdf")
author = ds.GetMetadataItem("AUTHOR")
ds = None
assert author == "author", "did not get expected metadata"
# Update info
ds = gdal.Open("tmp/pdf_update_info.pdf", gdal.GA_Update)
ds.SetMetadataItem("AUTHOR", "author2")
ds = None
# Check
ds = gdal.Open("tmp/pdf_update_info.pdf")
author = ds.GetMetadataItem("AUTHOR")
ds = None
assert author == "author2", "did not get expected metadata"
# Clear info
ds = gdal.Open("tmp/pdf_update_info.pdf", gdal.GA_Update)
ds.SetMetadataItem("AUTHOR", None)
ds = None
# Check PAM doesn't exist
if os.path.exists("tmp/pdf_update_info.pdf.aux.xml"):
print(author)
pytest.fail("did not expected .aux.xml")
# Check
ds = gdal.Open("tmp/pdf_update_info.pdf")
author = ds.GetMetadataItem("AUTHOR")
ds = None
assert author is None, "did not get expected metadata"
gdaltest.pdf_drv.Delete("tmp/pdf_update_info.pdf")
###############################################################################
# Check SetMetadataItem() for xml:XMP
def test_pdf_update_xmp(poppler_or_pdfium_or_podofo):
src_ds = gdal.Open("data/byte.tif")
ds = gdaltest.pdf_drv.CreateCopy("tmp/pdf_update_xmp.pdf", src_ds)
ds = None
src_ds = None
# Add info
ds = gdal.Open("tmp/pdf_update_xmp.pdf", gdal.GA_Update)
ds.SetMetadata(["<?xpacket begin='a'/><a/>"], "xml:XMP")
ds = None
# Check
ds = gdal.Open("tmp/pdf_update_xmp.pdf")
xmp = ds.GetMetadata("xml:XMP")[0]
ds = None
assert xmp == "<?xpacket begin='a'/><a/>", "did not get expected metadata"
# Update info
ds = gdal.Open("tmp/pdf_update_xmp.pdf", gdal.GA_Update)
ds.SetMetadata(["<?xpacket begin='a'/><a_updated/>"], "xml:XMP")
ds = None
# Check
ds = gdal.Open("tmp/pdf_update_xmp.pdf")
xmp = ds.GetMetadata("xml:XMP")[0]
ds = None
assert xmp == "<?xpacket begin='a'/><a_updated/>", "did not get expected metadata"
# Check PAM doesn't exist
assert not os.path.exists(
"tmp/pdf_update_xmp.pdf.aux.xml"
), "did not expected .aux.xml"
# Clear info
ds = gdal.Open("tmp/pdf_update_xmp.pdf", gdal.GA_Update)
ds.SetMetadata(None, "xml:XMP")
ds = None
# Check
ds = gdal.Open("tmp/pdf_update_xmp.pdf")
xmp = ds.GetMetadata("xml:XMP")
ds = None
assert xmp is None, "did not get expected metadata"
gdaltest.pdf_drv.Delete("tmp/pdf_update_xmp.pdf")
###############################################################################
# Check SetGCPs() but with GCPs that resolve to a geotransform
def _pdf_update_gcps(poppler_or_pdfium):
dpi = 300
out_filename = "tmp/pdf_update_gcps.pdf"
src_ds = gdal.Open("data/byte.tif")
src_wkt = src_ds.GetProjectionRef()
src_gt = src_ds.GetGeoTransform()
ds = gdaltest.pdf_drv.CreateCopy(
out_filename, src_ds, options=["GEO_ENCODING=NONE", "DPI=%d" % dpi]
)
ds = None
src_ds = None
gcp = [[2.0, 8.0, 0, 0], [2.0, 18.0, 0, 0], [16.0, 18.0, 0, 0], [16.0, 8.0, 0, 0]]
for i in range(4):
gcp[i][2] = src_gt[0] + gcp[i][0] * src_gt[1] + gcp[i][1] * src_gt[2]
gcp[i][3] = src_gt[3] + gcp[i][0] * src_gt[4] + gcp[i][1] * src_gt[5]
vrt_txt = """<VRTDataset rasterXSize="20" rasterYSize="20">
<GCPList Projection=''>
<GCP Id="" Pixel="%f" Line="%f" X="%f" Y="%f"/>
<GCP Id="" Pixel="%f" Line="%f" X="%f" Y="%f"/>
<GCP Id="" Pixel="%f" Line="%f" X="%f" Y="%f"/>
<GCP Id="" Pixel="%f" Line="%f" X="%f" Y="%f"/>
</GCPList>
<VRTRasterBand dataType="Byte" band="1">
<SimpleSource>
<SourceFilename relativeToVRT="1">data/byte.tif</SourceFilename>
<SourceProperties RasterXSize="20" RasterYSize="20" DataType="Byte" BlockXSize="20" BlockYSize="20" />
<SourceBand>1</SourceBand>
</SimpleSource>
</VRTRasterBand>
</VRTDataset>""" % (
gcp[0][0],
gcp[0][1],
gcp[0][2],
gcp[0][3],
gcp[1][0],
gcp[1][1],
gcp[1][2],
gcp[1][3],
gcp[2][0],
gcp[2][1],
gcp[2][2],
gcp[2][3],
gcp[3][0],
gcp[3][1],
gcp[3][2],
gcp[3][3],
)
vrt_ds = gdal.Open(vrt_txt)
gcps = vrt_ds.GetGCPs()
vrt_ds = None
# Set GCPs()
ds = gdal.Open(out_filename, gdal.GA_Update)
ds.SetGCPs(gcps, src_wkt)
ds = None
# Check
ds = gdal.Open(out_filename)
got_gt = ds.GetGeoTransform()
got_wkt = ds.GetProjectionRef()
got_gcp_count = ds.GetGCPCount()
ds.GetGCPs()
got_gcp_wkt = ds.GetGCPProjection()
got_neatline = ds.GetMetadataItem("NEATLINE")
if pdf_is_pdfium():
max_error = 1
else:
max_error = 0.0001
ds = None
assert got_wkt != "", "did not expect null GetProjectionRef"
assert got_gcp_wkt == "", "did not expect non null GetGCPProjection"
for i in range(6):
assert got_gt[i] == pytest.approx(
src_gt[i], abs=1e-8
), "did not get expected gt"
assert got_gcp_count == 0, "did not expect GCPs"
got_geom = ogr.CreateGeometryFromWkt(got_neatline)
expected_lr = ogr.Geometry(ogr.wkbLinearRing)
for i in range(4):
expected_lr.AddPoint_2D(gcp[i][2], gcp[i][3])
expected_lr.AddPoint_2D(gcp[0][2], gcp[0][3])
expected_geom = ogr.Geometry(ogr.wkbPolygon)
expected_geom.AddGeometry(expected_lr)
ogrtest.check_feature_geometry(got_geom, expected_geom, max_error=max_error)
gdaltest.pdf_drv.Delete(out_filename)
@pytest.mark.skipif(
not gdaltest.vrt_has_open_support(),
reason="VRT driver open missing",
)
def test_pdf_update_gcps_iso32000(poppler_or_pdfium):
gdal.SetConfigOption("GDAL_PDF_GEO_ENCODING", None)
_pdf_update_gcps(poppler_or_pdfium)
###############################################################################
# Check NEATLINE support
def _pdf_set_neatline(pdf_backend, geo_encoding, dpi=300):
out_filename = "tmp/pdf_set_neatline.pdf"
if geo_encoding == "ISO32000":
neatline = "POLYGON ((441720 3751320,441720 3750120,441920 3750120,441920 3751320,441720 3751320))"
else: # For OGC_BP, we can use more than 4 points
neatline = "POLYGON ((441720 3751320,441720 3751000,441720 3750120,441920 3750120,441920 3751320,441720 3751320))"
# Test CreateCopy() with NEATLINE
src_ds = gdal.Open("data/byte.tif")
expected_gt = src_ds.GetGeoTransform()
ds = gdaltest.pdf_drv.CreateCopy(
out_filename,
src_ds,
options=[
"NEATLINE=%s" % neatline,
"GEO_ENCODING=%s" % geo_encoding,
"DPI=%d" % dpi,
],
)
ds = None
src_ds = None
# Check
ds = gdal.Open(out_filename)
got_gt = ds.GetGeoTransform()
got_neatline = ds.GetMetadataItem("NEATLINE")
if pdf_is_pdfium():
max_error = 1
else:
max_error = 0.0001
ds = None
for i in range(6):
assert got_gt[i] == pytest.approx(
expected_gt[i], abs=2e-7
), "did not get expected gt"
got_geom = ogr.CreateGeometryFromWkt(got_neatline)
expected_geom = ogr.CreateGeometryFromWkt(neatline)
ogrtest.check_feature_geometry(got_geom, expected_geom, max_error=max_error)
# Test SetMetadataItem()
ds = gdal.Open(out_filename, gdal.GA_Update)
neatline = "POLYGON ((440720 3751320,440720 3750120,441920 3750120,441920 3751320,440720 3751320))"
ds.SetMetadataItem("NEATLINE", neatline)
ds = None
# Check
with gdal.config_option("GDAL_PDF_GEO_ENCODING", geo_encoding):
ds = gdal.Open(out_filename)
got_gt = ds.GetGeoTransform()
got_neatline = ds.GetMetadataItem("NEATLINE")
if pdf_is_pdfium():
if geo_encoding == "ISO32000":
expected_gt = (
440722.36151923181,
59.93217744208814,
0.0,
3751318.7819266757,
0.0,
-59.941906300000845,
)