def get_capabilities_response(self, request, params):
return render_to_response(
'ga_ows/WFS_GetCapabilities.template.xml', {
"title":
self.title,
"keywords":
self.keywords,
"fees":
self.fees,
"access_constraints":
self.access_constraints,
"endpoint":
request.build_absolute_uri().split('?')[0],
"output_formats": [
ogr.GetDriver(drv).GetName()
for drv in range(ogr.GetDriverCount()) if ogr.GetDriver(
drv).TestCapability(ogr.ODrCCreateDataSource)
],
"addr_street":
self.addr_street,
"addr_city":
self.addr_city,
"addr_admin_area":
self.addr_admin_area,
"addr_postcode":
self.addr_postcode,
"addr_country":
self.addr_country,
"feature_versioning":
self.adapter.supports_feature_versioning(),
"transactional":
True,
'feature_types':
self.adapter.get_feature_descriptions(request)
})
def vectInfo(conf,inputs,outputs):
global bReadOnly
global bVerbose
global bSummaryOnly
global nFetchFID
global papszOptions
pszWHERE = None
pszDataSource = None
papszLayers = None
poSpatialFilter = None
nRepeatCount = 1
bAllLayers = False
pszSQLStatement = None
pszDialect = None
options = {}
pszSQLStatement = inputs["q"]["value"]
pszDataSource = inputs["dstName"]["value"]
papszLayers.append(inputs["dsoName"]["value"])
#/* -------------------------------------------------------------------- */
#/* Open data source. */
#/* -------------------------------------------------------------------- */
poDS = None
poDriver = None
poDS = ogr.Open( pszDataSource, not bReadOnly )
if poDS is None and not bReadOnly:
poDS = ogr.Open( pszDataSource, False )
if poDS is not None and bVerbose:
print >> sys.stderr,"Had to open data source read-only."
bReadOnly = True
#/* -------------------------------------------------------------------- */
#/* Report failure */
#/* -------------------------------------------------------------------- */
if poDS is None:
print >>sys.stderr, "FAILURE:\n"\
"Unable to open datasource `%s' with the following drivers." % pszDataSource
conf["lenv"]["message"]="FAILURE:\n"\
"Unable to open datasource `%s' with the following drivers." % pszDataSource
for iDriver in range(ogr.GetDriverCount()):
print >>sys.stderr," -> %s" % ogr.GetDriver(iDriver).GetName()
conf["lenv"]["message"]+=" -> %s" % ogr.GetDriver(iDriver).GetName()
return 4
poDriver = poDS.GetDriver()
#/* -------------------------------------------------------------------- */
#/* Some information messages. */
#/* -------------------------------------------------------------------- */
if bVerbose:
print >>sys.stderr,"INFO: Open of `%s'\n"
" using driver `%s' successful." % (pszDataSource, poDriver.GetName())
def get_ogr_driver(filepath):
"""
Get the OGR driver from the provided file extension.
Args:
file_extension (str): file extension
Returns:
osgeo.ogr.Driver
Raises:
ValueError: no driver is found
"""
filename, file_extension = os.path.splitext(filepath)
EXTENSION = file_extension[1:]
ogr_driver_count = ogr.GetDriverCount()
for idx in range(ogr_driver_count):
driver = ogr.GetDriver(idx)
driver_extension = driver.GetMetadataItem(str('DMD_EXTENSION')) or ''
driver_extensions = driver.GetMetadataItem(str('DMD_EXTENSIONS')) or ''
if EXTENSION == driver_extension or EXTENSION in driver_extensions:
return driver
else:
msg = 'No driver found for the following file extension: {}'.format(
EXTENSION)
raise ValueError(msg)
def print_drivers():
"""Print a list of available drivers."""
for i in range(ogr.GetDriverCount()):
driver = ogr.GetDriver(i)
writeable = driver.TestCapability(ogr.ODrCCreateDataSource)
print("{0} ({1})".format(driver.GetName(),
"read/write" if writeable else "readonly"))
def draw_airspace(pszDataSource):
# --------------------------------------------------------------------
# Open data source.
# --------------------------------------------------------------------
poDS = None
poDriver = None
poDS = ogr.Open(pszDataSource)
# --------------------------------------------------------------------
# Report failure.
# --------------------------------------------------------------------
if poDS is None:
print("FAILURE:\n"
"Unable to open datasource `%s' with the following drivers." %
pszDataSource)
for iDriver in range(ogr.GetDriverCount()):
print(" -> %s" % ogr.GetDriver(iDriver).GetName())
return 1
poDriver = poDS.GetDriver()
# --------------------------------------------------------------------
# Some information messages.
# --------------------------------------------------------------------
print("INFO: Open of `%s'\n"
" using driver `%s' successful." %
(pszDataSource, poDriver.GetName()))
poDS_Name = poDS.GetName()
if str(type(pszDataSource)) == "<type 'unicode'>" and str(
type(poDS_Name)) == "<type 'str'>":
poDS_Name = poDS_Name.decode("utf8")
if pszDataSource != poDS_Name:
print("INFO: Internal data source name `%s'\n"
" different from user name `%s'." %
(poDS_Name, pszDataSource))
#gdal.Debug( "OGR", "GetLayerCount() = %d\n", poDS.GetLayerCount() )
# --------------------------------------------------------------------
# Process specified data source layers.
# --------------------------------------------------------------------
poLayer = poDS.GetLayerByName("airspaces")
if poLayer is None:
print("FAILURE: Couldn't fetch requested layer %s!" % papszIter)
return 1
ReadLayer(poLayer)
# --------------------------------------------------------------------
# Close down.
# --------------------------------------------------------------------
poDS.Destroy()
for airspace in airspaces:
airspace.draw()
def drivers_ogr_gdal_disponibles():
"""
Retorna lista de drivers disponibles a través de la librería osgeo-gdal-ogr
Returns:
dict
"""
cnt = ogr.GetDriverCount()
driver_list = []
drivers = OrderedDict()
for i in range(cnt):
driver = ogr.GetDriver(i)
driver_name = driver.GetName()
driver_list.append(driver_name)
for driver_name in driver_list:
# Is File GeoDatabase available?
drv = ogr.GetDriverByName(driver_name)
if drv is None:
print_warning("{} !!ATENTION - driver NOT available!!".format(driver_name))
else:
drivers[driver_name] = drv
print_debug(driver_name)
return drivers
def _get_supported_extensions(type_):
"""Retrieves supported raster file extensions from gdal according to installed drivers.
Arguments:
type_ (str): 'raster' or 'vector'
Returns:
(tuple): Lists with supported file extensions.
"""
from osgeo import gdal, ogr
primary = []
exts = []
if type_ == "raster":
driver_count = gdal.GetDriverCount()
dcap = gdal.DCAP_RASTER
elif type_ == "vector":
driver_count = ogr.GetDriverCount()
dcap = gdal.DCAP_VECTOR
else:
raise ValueError("`type_` should be 'raster' or 'vector'")
for i in range(driver_count):
drv = gdal.GetDriver(i) if type_ == "raster" else ogr.GetDriver(i)
if drv.GetMetadataItem(dcap):
ext = drv.GetMetadataItem(gdal.DMD_EXTENSIONS)
if ext is None or ext == '':
continue
ext = ext.split(' ')
primary.append(ext[0])
exts.extend(ext)
if type_ == "vector" and 'tsv' not in exts:
exts.append('tsv')
return (primary, exts)
def shapefile_engine_prepare(self):
log.info('Preparing shapefiles engine...')
# OGR provides dozens of drivers to read different types of file formats.
# But I can't find the documention (list of drivers) online. So just
# snoop.
# FIXME: Do this just if debugging.
for driver_i in xrange(ogr.GetDriverCount()):
log.verbose(' >> ogr driver[%d]: %s' % (
driver_i,
ogr.GetDriver(driver_i).GetName(),
))
# We want the shapefile driver, which is also the first one in the list.
self.file_driver = ogr.GetDriverByName('ESRI Shapefile')
# Make the '.out' and '.fin' directories.
opath = self.mjob.make_working_directories()
# The datasource is just another directory, and each layer is saved as a
# Shapefile, so it doesn't make sense to let the user have much
# influence over what we name these files.
# Make the folder name the same as the zip we'll create,
# e.g., "Cyclopath-Export".
datasource_name = self.mjob.wtem.get_zipname()
spath = os.path.join(opath, datasource_name)
log.debug('shapefile_engine_prepare: spath:')
log.debug('%s' % (spath, ))
self.outp_datasrc = self.file_driver.CreateDataSource(spath)
# 2014.09.04: chmod, lest: `ls -l ./...out`:
# drwxr-s--- 2 www-data www-data 4.0K 2014-08-19 13:14 Cyclopath-Export/
os.chmod(spath, 02775)
self.spat_ref = osr.SpatialReference()
# This is wrong:
# self.spat_ref.SetWellKnownGeogCS('WGS84')
# This just writes some meta info:
# self.spat_ref.SetWellKnownGeogCS('NAD83')
# But this writes just the basics:
# nZone = 15
# bNorth = True
# self.spat_ref.SetUTM(nZone, bNorth)
# i.e., the basics are:
# PROJECTION["Transverse_Mercator"],
# PARAMETER["latitude_of_origin",0],
# PARAMETER["central_meridian",-93],
# PARAMETER["scale_factor",0.9996],
# PARAMETER["false_easting",500000],
# PARAMETER["false_northing",0],
# UNIT["Meter",1]]
# The documentation says this should work but I get nothing:
# self.spat_ref.SetWellKnownGeogCS('EPSG:26915')
# But I found that this works:
# self.spat_ref.ImportFromEPSG(26915)
self.spat_ref.ImportFromEPSG(conf.default_srid)
def Usage():
print( "Usage: ogr2ogr [--help-general] [-skipfailures] [-append] [-update] [-gt n]\n" + \
" [-select field_list] [-where restricted_where] \n" + \
" [-progress] [-sql <sql statement>] \n" + \
" [-spat xmin ymin xmax ymax] [-preserve_fid] [-fid FID]\n" + \
" [-a_srs srs_def] [-t_srs srs_def] [-s_srs srs_def]\n" + \
" [-f format_name] [-overwrite] [[-dsco NAME=VALUE] ...]\n" + \
" [-simplify tolerance]\n" + \
#// " [-segmentize max_dist] [-fieldTypeToString All|(type1[,type2]*)]\n" + \
" [-fieldTypeToString All|(type1[,type2]*)] [-explodecollections] \n" + \
" dst_datasource_name src_datasource_name\n" + \
" [-lco NAME=VALUE] [-nln name] [-nlt type] [layer [layer ...]]\n" + \
"\n" + \
" -f format_name: output file format name, possible values are:")
for iDriver in range(ogr.GetDriverCount()):
poDriver = ogr.GetDriver(iDriver)
if poDriver.TestCapability(ogr.ODrCCreateDataSource):
print(" -f \"" + poDriver.GetName() + "\"")
print( " -append: Append to existing layer instead of creating new if it exists\n" + \
" -overwrite: delete the output layer and recreate it empty\n" + \
" -update: Open existing output datasource in update mode\n" + \
" -progress: Display progress on terminal. Only works if input layers have the \"fast feature count\" capability\n" + \
" -select field_list: Comma-delimited list of fields from input layer to\n" + \
" copy to the new layer (defaults to all)\n" + \
" -where restricted_where: Attribute query (like SQL WHERE)\n" + \
" -sql statement: Execute given SQL statement and save result.\n" + \
" -skipfailures: skip features or layers that fail to convert\n" + \
" -gt n: group n features per transaction (default 200)\n" + \
" -spat xmin ymin xmax ymax: spatial query extents\n" + \
" -simplify tolerance: distance tolerance for simplification.\n" + \
#//" -segmentize max_dist: maximum distance between 2 nodes.\n" + \
#//" Used to create intermediate points\n" + \
" -dsco NAME=VALUE: Dataset creation option (format specific)\n" + \
" -lco NAME=VALUE: Layer creation option (format specific)\n" + \
" -nln name: Assign an alternate name to the new layer\n" + \
" -nlt type: Force a geometry type for new layer. One of NONE, GEOMETRY,\n" + \
" POINT, LINESTRING, POLYGON, GEOMETRYCOLLECTION, MULTIPOINT,\n" + \
" MULTIPOLYGON, or MULTILINESTRING. Add \"25D\" for 3D layers.\n" + \
" Default is type of source layer.\n" + \
" -fieldTypeToString type1,...: Converts fields of specified types to\n" + \
" fields of type string in the new layer. Valid types are : \n" + \
" Integer, Real, String, Date, Time, DateTime, Binary, IntegerList, RealList,\n" + \
" StringList. Special value All can be used to convert all fields to strings.")
print(" -a_srs srs_def: Assign an output SRS\n" + \
" -t_srs srs_def: Reproject/transform to this SRS on output\n" + \
" -s_srs srs_def: Override source SRS\n" + \
"\n" + \
" Srs_def can be a full WKT definition (hard to escape properly),\n" + \
" or a well known definition (ie. EPSG:4326) or a file with a WKT\n" + \
" definition." )
return False
def listDriver(self, context): formatsList = [] cnt = ogr.GetDriverCount() for i in range(cnt): driver = ogr.GetDriver(i) name = driver.GetName() description = driver.GetDescription() if not name in formatsList: formatsList.append( (name, description, '') ) formatsList.sort() return formatsList
def get_all_drivers():
"""
get all the drivers GDAL supports
:return:
"""
driver_dic = []
cnt = ogr.GetDriverCount()
for i in range(cnt):
driver_name = ogr.GetDriver(i).GetName()
if not driver_name in driver_dic:
driver_dic.append(driver_name)
print(driver_dic)
def __init__(self, infile, verbose=False):
'''
create a object with the source file (infile = geodata source)
'''
supportedformats = []
self.sr_wgs84 = osr.SpatialReference()
self.sr_wgs84.ImportFromEPSG(4326)
driver = None
for g in range(0, ogr.GetDriverCount()):
supportedformats.append(ogr.GetDriver(g).GetName())
driver = ogr.GetDriver(g)
datasource = driver.Open(infile)
if datasource != None:
self.datasource = datasource
self.formatfound = ogr.GetDriver(g).GetName()
break
if datasource is None:
message = 'Could not find the driver for %s' % infile
if verbose:
message += "\n"
message += "List of supported drivers:"
for sf in supportedformats:
message += "- %s\n" % sf
raise Exception, message
self.layers_fields = []
for idx in range(0, datasource.GetLayerCount()):
layer = datasource.GetLayer(idx)
sr = layer.GetSpatialRef()
if sr is None:
raise Exception, 'Projection not present'
fields = {}
self.geomtypes.append(layer.GetGeomType())
for s in layer.schema:
print 'FOUND SCHEMA FIELD', s.GetName()
fields[s.GetName().decode('latin-1')] = s.GetTypeName()
self.layers_fields.append(fields)
layer.ResetReading()
def ogr_db2_listdrivers():
cnt = ogr.GetDriverCount()
formatsList = [] # Empty List
for i in range(cnt):
driver = ogr.GetDriver(i)
driverName = driver.GetName()
# print driverName
if driverName not in formatsList:
formatsList.append(driverName)
formatsList.sort() # Sorting the messy list of ogr drivers
for i in formatsList:
print(i)
def list_drivers():
# list available drivers (i.e., readers for different file formats)
cnt = ogr.GetDriverCount()
formatsList = [] # Empty List
for i in range(cnt):
driver = ogr.GetDriver(i)
driverName = driver.GetName()
if not driverName in formatsList:
formatsList.append(driverName)
formatsList.sort() # Sorting the messy list of ogr drivers
for i in formatsList:
print(i)
def ogr_drivers():
''' This coude returns the list of OGR drivers alphabetically from A-Z '''
cnt = ogr.GetDriverCount()
formats_list = []
for i in range(cnt):
driver = ogr.GetDriver(i)
driver_name = driver.GetName()
if not driver_name in formats_list:
formats_list.append(driver_name)
formats_list.sort()
for i in formats_list:
print i
print "The number of ogr drivers is %d" % (cnt)
def list_formats():
cnt = ogr.GetDriverCount()
formatsList = []
for i in range(cnt):
driver = ogr.GetDriver(i)
if not driver.TestCapability("CreateDataSource"):
continue
driverName = driver.GetName()
if driverName == 'GML':
continue
formatsList.append(driverName.replace(' ', '_'))
for i in sorted(formatsList):
print(i)
def list_ogr_drivers():
""" Provide a list with all the available OGR drivers """
cnt = ogr.GetDriverCount()
driver_list = []
for i in range(cnt):
driver = ogr.GetDriver(i)
driver_name = driver.GetName()
if driver_name not in driver_list:
driver_list.append(driver_name)
driver_list.sort() # Sorting the messy list of ogr drivers
for i, drv in enumerate(driver_list):
print("%3s: %25s" % (i, drv))
def ListOGR_drivers(): """ Function to print out a list of all available drivers for OGR Returns: N/A """ cnt = ogr.GetDriverCount() formatsList = [] # Empty List for i in range(cnt): driver = ogr.GetDriver(i) driverName = driver.GetName() if not driverName in formatsList: formatsList.append(driverName) formatsList.sort() # Sorting the messy list of ogr drivers for i in formatsList: print(i)
def get_ogr_driver(filepath):
"""Get the OGR driver based on the file's extension.
:param filepath: file's path
:type filepath: str
:raises UnsupportedVectorType: unsupported extension
:return: OGR driver
:rtype: osgeo.ogr.Driver
"""
filename, file_extension = os.path.splitext(filepath)
extension = file_extension[1:]
ogr_driver_count = ogr.GetDriverCount()
for idx in range(ogr_driver_count):
driver = ogr.GetDriver(idx)
driver_extension = driver.GetMetadataItem(str("DMD_EXTENSION")) or ""
driver_extensions = driver.GetMetadataItem(str("DMD_EXTENSIONS")) or ""
if extension == driver_extension or extension in driver_extensions:
return driver
raise UnsupportedVectorType
def driverList(drivertype='raster'):
'''Return the list of available GDAL/OGR drivers'''
if not drivertype:
types = ['gdal']
elif isinstance(drivertype, string_types):
types = [drivertype]
else:
types = drivertype
if not set(('raster', 'vector')).issuperset(types):
raise ValueError('invalid type list: "%s"' % types)
drivers = []
if 'raster' in types:
drivers.extend(
gdal.GetDriver(index) for index in range(gdal.GetDriverCount()))
if 'vector' in types:
# @TODO: check
from osgeo import ogr
drivers.extend(
ogr.GetDriver(index) for index in range(ogr.GetDriverCount()))
return drivers
from osgeo import ogr
cnt = ogr.GetDriverCount()
for i in range(cnt):
print(ogr.GetDriver(i).GetName())
def main(argv=None):
global bReadOnly
global bVerbose
global bSummaryOnly
global nFetchFID
global papszOptions
pszWHERE = None
pszDataSource = None
papszLayers = None
poSpatialFilter = None
nRepeatCount = 1
bAllLayers = False
pszSQLStatement = None
pszDialect = None
options = {}
pszGeomField = None
if argv is None:
argv = sys.argv
argv = ogr.GeneralCmdLineProcessor(argv)
# --------------------------------------------------------------------
# Processing command line arguments.
# --------------------------------------------------------------------
if argv is None:
return 1
nArgc = len(argv)
iArg = 1
while iArg < nArgc:
if EQUAL(argv[iArg], "--utility_version"):
print("%s is running against GDAL %s" %
(argv[0], gdal.VersionInfo("RELEASE_NAME")))
return 0
elif EQUAL(argv[iArg], "-ro"):
bReadOnly = True
elif EQUAL(argv[iArg], "-q") or EQUAL(argv[iArg], "-quiet"):
bVerbose = False
elif EQUAL(argv[iArg], "-fid") and iArg < nArgc - 1:
iArg = iArg + 1
nFetchFID = int(argv[iArg])
elif EQUAL(argv[iArg], "-spat") and iArg + 4 < nArgc:
oRing = ogr.Geometry(ogr.wkbLinearRing)
oRing.AddPoint(float(argv[iArg + 1]), float(argv[iArg + 2]))
oRing.AddPoint(float(argv[iArg + 1]), float(argv[iArg + 4]))
oRing.AddPoint(float(argv[iArg + 3]), float(argv[iArg + 4]))
oRing.AddPoint(float(argv[iArg + 3]), float(argv[iArg + 2]))
oRing.AddPoint(float(argv[iArg + 1]), float(argv[iArg + 2]))
poSpatialFilter = ogr.Geometry(ogr.wkbPolygon)
poSpatialFilter.AddGeometry(oRing)
iArg = iArg + 4
elif EQUAL(argv[iArg], "-geomfield") and iArg < nArgc - 1:
iArg = iArg + 1
pszGeomField = argv[iArg]
elif EQUAL(argv[iArg], "-where") and iArg < nArgc - 1:
iArg = iArg + 1
pszWHERE = argv[iArg]
elif EQUAL(argv[iArg], "-sql") and iArg < nArgc - 1:
iArg = iArg + 1
pszSQLStatement = argv[iArg]
elif EQUAL(argv[iArg], "-dialect") and iArg < nArgc - 1:
iArg = iArg + 1
pszDialect = argv[iArg]
elif EQUAL(argv[iArg], "-rc") and iArg < nArgc - 1:
iArg = iArg + 1
nRepeatCount = int(argv[iArg])
elif EQUAL(argv[iArg], "-al"):
bAllLayers = True
elif EQUAL(argv[iArg], "-so") or EQUAL(argv[iArg], "-summary"):
bSummaryOnly = True
elif len(argv[iArg]) > 8 and EQUAL(argv[iArg][0:8], "-fields="):
options['DISPLAY_FIELDS'] = argv[iArg][7:len(argv[iArg])]
elif len(argv[iArg]) > 6 and EQUAL(argv[iArg][0:6], "-geom="):
options['DISPLAY_GEOMETRY'] = argv[iArg][6:len(argv[iArg])]
elif argv[iArg][0] == '-':
return Usage()
elif pszDataSource is None:
pszDataSource = argv[iArg]
else:
if papszLayers is None:
papszLayers = []
papszLayers.append(argv[iArg])
bAllLayers = False
iArg = iArg + 1
if pszDataSource is None:
return Usage()
# --------------------------------------------------------------------
# Open data source.
# --------------------------------------------------------------------
poDS = None
poDriver = None
poDS = ogr.Open(pszDataSource, not bReadOnly)
if poDS is None and not bReadOnly:
poDS = ogr.Open(pszDataSource, False)
if poDS is not None and bVerbose:
print("Had to open data source read-only.")
bReadOnly = True
# --------------------------------------------------------------------
# Report failure.
# --------------------------------------------------------------------
if poDS is None:
print("FAILURE:\n"
"Unable to open datasource `%s' with the following drivers." %
pszDataSource)
for iDriver in range(ogr.GetDriverCount()):
print(" -> %s" % ogr.GetDriver(iDriver).GetName())
return 1
poDriver = poDS.GetDriver()
# --------------------------------------------------------------------
# Some information messages.
# --------------------------------------------------------------------
if bVerbose:
print("INFO: Open of `%s'\n"
" using driver `%s' successful." %
(pszDataSource, poDriver.GetName()))
poDS_Name = poDS.GetName()
if str(type(pszDataSource)) == "<type 'unicode'>" and str(
type(poDS_Name)) == "<type 'str'>":
poDS_Name = poDS_Name.decode("utf8")
if bVerbose and pszDataSource != poDS_Name:
print("INFO: Internal data source name `%s'\n"
" different from user name `%s'." %
(poDS_Name, pszDataSource))
# --------------------------------------------------------------------
# Special case for -sql clause. No source layers required.
# --------------------------------------------------------------------
if pszSQLStatement is not None:
poResultSet = None
nRepeatCount = 0 #// skip layer reporting.
if papszLayers is not None:
print("layer names ignored in combination with -sql.")
if pszGeomField is None:
poResultSet = poDS.ExecuteSQL(pszSQLStatement, poSpatialFilter,
pszDialect)
else:
poResultSet = poDS.ExecuteSQL(pszSQLStatement, None, pszDialect)
if poResultSet is not None:
if pszWHERE is not None:
if poResultSet.SetAttributeFilter(pszWHERE) != 0:
print("FAILURE: SetAttributeFilter(%s) failed." % pszWHERE)
return 1
if pszGeomField is not None:
ReportOnLayer(poResultSet, None, pszGeomField, poSpatialFilter,
options)
else:
ReportOnLayer(poResultSet, None, None, None, options)
poDS.ReleaseResultSet(poResultSet)
#gdal.Debug( "OGR", "GetLayerCount() = %d\n", poDS.GetLayerCount() )
for iRepeat in range(nRepeatCount):
if papszLayers is None:
# --------------------------------------------------------------------
# Process each data source layer.
# --------------------------------------------------------------------
for iLayer in range(poDS.GetLayerCount()):
poLayer = poDS.GetLayer(iLayer)
if poLayer is None:
print("FAILURE: Couldn't fetch advertised layer %d!" %
iLayer)
return 1
if not bAllLayers:
line = "%d: %s" % (iLayer + 1,
poLayer.GetLayerDefn().GetName())
nGeomFieldCount = poLayer.GetLayerDefn().GetGeomFieldCount(
)
if nGeomFieldCount > 1:
line = line + " ("
for iGeom in range(nGeomFieldCount):
if iGeom > 0:
line = line + ", "
poGFldDefn = poLayer.GetLayerDefn(
).GetGeomFieldDefn(iGeom)
line = line + "%s" % ogr.GeometryTypeToName(
poGFldDefn.GetType())
line = line + ")"
if poLayer.GetLayerDefn().GetGeomType() != ogr.wkbUnknown:
line = line + " (%s)" % ogr.GeometryTypeToName(
poLayer.GetLayerDefn().GetGeomType())
print(line)
else:
if iRepeat != 0:
poLayer.ResetReading()
ReportOnLayer(poLayer, pszWHERE, pszGeomField,
poSpatialFilter, options)
else:
# --------------------------------------------------------------------
# Process specified data source layers.
# --------------------------------------------------------------------
for papszIter in papszLayers:
poLayer = poDS.GetLayerByName(papszIter)
if poLayer is None:
print("FAILURE: Couldn't fetch requested layer %s!" %
papszIter)
return 1
if iRepeat != 0:
poLayer.ResetReading()
ReportOnLayer(poLayer, pszWHERE, pszGeomField, poSpatialFilter,
options)
# --------------------------------------------------------------------
# Close down.
# --------------------------------------------------------------------
poDS.Destroy()
return 0
def GetFeature(self, request, kwargs):
"""
"""
mimetypes = {'GeoJSON': 'application/json'}
if 'xml' in kwargs:
parms = self._parse_xml_GetFeature(kwargs['xml'])
else:
parms = GetFeatureMixin.Parameters.create(kwargs)
# must be an OGR dataset or a QuerySet containing one layer
response = self.adapter.get_features(request, parms)
if isinstance(response, GeoQuerySet):
layer = None
db_params = settings.DATABASES[response.db]
if db_params['ENGINE'].endswith('postgis'):
# Then we take the raw SQL from thr QuerySet and pass it through OGR instead. This causes the SQL to be
# executed twice, but it's also the most expedient way to create our output. This could be done better,
# but it gets it out the door for now.
# Create the query from the QuerySet
# adapt() prevents SQL injection attacks
from psycopg2.extensions import adapt
query, parameters = response.query.get_compiler(
response.db).as_sql()
parameters = tuple([adapt(p) for p in parameters])
query = query % parameters
# Connect to PostGIS with OGR.
drv = ogr.GetDriverByName("PostgreSQL")
connection_string = "PG:dbname='{db}'".format(
db=db_params['NAME'])
if 'HOST' in db_params and db_params['HOST']:
connection_string += " host='{host}'".format(
host=db_params['HOST'])
if 'PORT' in db_params and db_params['PORT']:
connection_string += " port='{port}'".format(
port=db_params['PORT'])
if 'USER' in db_params and db_params['USER']:
connection_string += " user='******'".format(
user=db_params['USER'])
if 'PASSWORD' in db_params and db_params['PASSWORD']:
connection_string += " password='******'".format(
password=db_params['PASSWORD'])
conn = drv.Open(connection_string)
# Put the QuerySet into a layer the hard way.
layer = conn.ExecuteSQL(query.encode('ascii'))
elif db_params['ENGINE'].endswith('spatialite'):
# This works the same way as the if-statement above.
# todo replace this with the sqlite version of the same thing for preventing SQL injection attacks
from psycopg2.extensions import adapt
query, parameters = response.query.get_compiler(
response.db).as_sql()
parameters = tuple([adapt(p) for p in parameters])
query = query % parameters
drv = ogr.GetDriverByName("Spatialite")
conn = drv.Open(db_params['NAME'])
layer = conn.ExecuteSQL(query)
else:
layer = response.GetLayerByIndex(0)
drivers = dict([
(ogr.GetDriver(drv).GetName(), ogr.GetDriver(drv))
for drv in range(ogr.GetDriverCount())
if ogr.GetDriver(drv).TestCapability(ogr.ODrCCreateDataSource)
])
output_format = parms.cleaned_data['output_format'].decode('ascii')
if 'gml' in output_format or 'xml' in output_format:
tmpname = "{tmpdir}{sep}{uuid}.{output_format}".format(
tmpdir=gettempdir(),
uuid=uuid4(),
output_format='gml',
sep=os.path.sep)
drv = ogr.GetDriverByName("GML")
ds = drv.CreateDataSource(tmpname)
l2 = ds.CopyLayer(layer, 'WFS_result')
l2.SyncToDisk()
del ds
responsef = open(tmpname)
rdata = responsef.read()
responsef.close()
os.unlink(tmpname)
return HttpResponse(rdata, mimetype=output_format)
elif output_format in drivers:
tmpname = "{tmpdir}{sep}{uuid}.{output_format}".format(
tmpdir=gettempdir(),
uuid=uuid4(),
output_format=output_format,
sep=os.path.sep)
drv = drivers[output_format]
ds = drv.CreateDataSource(tmpname)
l2 = ds.CopyLayer(layer, 'WFS_result')
l2.SyncToDisk()
del ds
responsef = open(tmpname)
rdata = responsef.read()
responsef.close()
os.unlink(tmpname)
return HttpResponse(rdata,
mimetype=mimetypes.get(output_format,
'text/plain'))
else:
raise OperationProcessingFailed.at(
'GetFeature',
'outputFormat {of} not supported ({formats})'.format(
of=output_format, formats=drivers.keys()))
from osgeo import gdal
from osgeo import ogr
from osgeo import osr
from .. import geoprocessing
from ..geoprocessing_core import DEFAULT_GTIFF_CREATION_TUPLE_OPTIONS
LOGGER = logging.getLogger('pygeoprocessing.testing.sampledata')
ReferenceData = collections.namedtuple('ReferenceData',
'projection origin pixel_size')
gdal.AllRegister()
GDAL_DRIVERS = sorted([
gdal.GetDriver(i).GetDescription() for i in range(1, gdal.GetDriverCount())
])
OGR_DRIVERS = sorted(
[ogr.GetDriver(i).GetName() for i in range(ogr.GetDriverCount())])
# Mappings of numpy -> GDAL types and GDAL -> numpy types.
NUMPY_GDAL_DTYPES = {
numpy.byte: gdal.GDT_Byte,
numpy.ubyte: gdal.GDT_Byte,
numpy.uint16: gdal.GDT_UInt16,
numpy.uint32: gdal.GDT_UInt32,
numpy.int16: gdal.GDT_Int16,
numpy.int32: gdal.GDT_Int32,
numpy.int64: gdal.GDT_Int32, # GDAL doesn't have an int6.
numpy.float32: gdal.GDT_Float32,
numpy.float64: gdal.GDT_Float64,
numpy.cfloat: gdal.GDT_CFloat32,
numpy.cfloat: gdal.GDT_CFloat64
}
def vectInfo(conf,inputs,outputs):
global bReadOnly
global bVerbose
global bSummaryOnly
global nFetchFID
global papszOptions
pszWHERE = None
pszDataSource = None
papszLayers = None
poSpatialFilter = None
nRepeatCount = 1
bAllLayers = False
pszSQLStatement = None
pszDialect = None
options = {}
pszSQLStatement = inputs["q"]["value"]
pszDataSource = inputs["dstName"]["value"]
#papszLayers.append(inputs["dsoName"]["value"])
#/* -------------------------------------------------------------------- */
#/* Open data source. */
#/* -------------------------------------------------------------------- */
poDS = None
poDriver = None
poDS = ogr.Open( pszDataSource, not bReadOnly )
if poDS is None and not bReadOnly:
poDS = ogr.Open( pszDataSource, False )
if poDS is not None and bVerbose:
print >> sys.stderr,"Had to open data source read-only."
bReadOnly = True
#/* -------------------------------------------------------------------- */
#/* Report failure */
#/* -------------------------------------------------------------------- */
if poDS is None:
print >>sys.stderr, "FAILURE:\n"\
"Unable to open datasource `%s' with the following drivers." % pszDataSource
conf["lenv"]["message"]="FAILURE:\n"\
"Unable to open datasource `%s' with the following drivers." % pszDataSource
for iDriver in range(ogr.GetDriverCount()):
conf["lenv"]["message"]+=" -> %s" % ogr.GetDriver(iDriver).GetName()
return 4
poDriver = poDS.GetDriver()
poDS_Name = poDS.GetName()
if str(type(pszDataSource)) == "<type 'unicode'>" and str(type(poDS_Name)) == "<type 'str'>":
poDS_Name = unicode(poDS_Name, "utf8")
#/* -------------------------------------------------------------------- */
#/* Special case for -sql clause. No source layers required. */
#/* -------------------------------------------------------------------- */
if pszSQLStatement is not None:
poResultSet = None
nRepeatCount = 0 #// skip layer reporting.
if papszLayers is not None:
print >> sys.stderr, "layer names ignored in combination with -sql."
poResultSet = poDS.ExecuteSQL( pszSQLStatement, poSpatialFilter,
pszDialect )
if poResultSet is not None:
if pszWHERE is not None:
poResultSet.SetAttributeFilter( pszWHERE )
res=[]
ReportOnLayer( inputs, res, poResultSet, None, None, options )
outputs["Result"]["value"]=json.dumps(res,ensure_ascii=False)
poDS.ReleaseResultSet( poResultSet )
else:
for iRepeat in range(nRepeatCount):
if papszLayers is None:
#/* -------------------------------------------------------------------- */
#/* Process each data source layer. */
#/* -------------------------------------------------------------------- */
for iLayer in range(poDS.GetLayerCount()):
poLayer = poDS.GetLayer(iLayer)
if poLayer is None:
print( "FAILURE: Couldn't fetch advertised layer %d!" % iLayer )
return 1
if not bAllLayers:
line = "%d: %s" % (iLayer+1, poLayer.GetLayerDefn().GetName())
if poLayer.GetLayerDefn().GetGeomType() != ogr.wkbUnknown:
line = line + " (%s)" % ogr.GeometryTypeToName( poLayer.GetLayerDefn().GetGeomType() )
print(line)
else:
if iRepeat != 0:
poLayer.ResetReading()
res=[]
ReportOnLayer( inputs, res, poLayer, pszWHERE, poSpatialFilter, options )
outputs["Result"]["value"]=json.dumps(res,ensure_ascii=False)
else:
#/* -------------------------------------------------------------------- */
#/* Process specified data source layers. */
#/* -------------------------------------------------------------------- */
for papszIter in papszLayers:
poLayer = poDS.GetLayerByName(papszIter)
if poLayer is None:
print( "FAILURE: Couldn't fetch requested layer %s!" % papszIter )
return 1
if iRepeat != 0:
poLayer.ResetReading()
res=[]
ReportOnLayer( inputs, res, poLayer, pszWHERE, poSpatialFilter, options )
outputs["Result"]["value"]=json.dumps(res,ensure_ascii=False)
#/* -------------------------------------------------------------------- */
#/* Close down. */
#/* -------------------------------------------------------------------- */
poDS.Destroy()
#import json
#print >> sys.stderr,outputs["Result"]["value"]
#outputs["Result"]["value"]=str(outputs["Result"]["value"])
return 3
def ogr_formats():
for iDriver in range(ogr.GetDriverCount()):
print(" -> %s" % ogr.GetDriver(iDriver).GetName())
# https://pcjericks.github.io/py-gdalogr-cookbook/
import sys
try:
from osgeo import ogr, osr, gdal
print("GDAL VERSION: {}".format(gdal.__version__))
gdal_driver_list = [
gdal.GetDriver(i).GetDescription()
for i in range(gdal.GetDriverCount())
]
ogr_driver_list = [
ogr.GetDriver(i).GetDescription() for i in range(ogr.GetDriverCount())
]
print("\nGDAL DRIVERS:")
print(gdal_driver_list)
print("\nOGR DRIVERS:")
print(ogr_driver_list)
except:
sys.exit('ERROR: cannot find GDAL/OGR modules')
def ogrinfo(readonly=False,
verbose=True,
summaryonly=False,
fetch_fid=ogr.NullFID,
where=None,
datasource_name=None,
layers=None,
spatial_filter=None,
repeat_count=1,
all_layers=False,
sql_statement=None,
dialect=None,
options={},
geomfield=None):
global bVerbose
global bSummaryOnly
global nFetchFID
bReadOnly = readonly
bVerbose = verbose
bSummaryOnly = summaryonly
nFetchFID = fetch_fid
pszWHERE = where
pszDataSource = datasource_name
bReadOnly = readonly
papszLayers = layers
poSpatialFilter = spatial_filter
nRepeatCount = repeat_count
bAllLayers = all_layers
pszSQLStatement = sql_statement
pszDialect = dialect
pszGeomField = geomfield
#/* -------------------------------------------------------------------- */
#/* Open data source. */
#/* -------------------------------------------------------------------- */
poDS = None
poDriver = None
poDS = ogr.Open(pszDataSource, not bReadOnly)
if poDS is None and not bReadOnly:
poDS = ogr.Open(pszDataSource, False)
if poDS is not None and bVerbose:
print("Had to open data source read-only.")
bReadOnly = True
#/* -------------------------------------------------------------------- */
#/* Report failure */
#/* -------------------------------------------------------------------- */
if poDS is None:
print("FAILURE:\n"
"Unable to open datasource `%s' with the following drivers." %
pszDataSource)
for iDriver in range(ogr.GetDriverCount()):
print(" -> %s" % ogr.GetDriver(iDriver).GetName())
return 1
poDriver = poDS.GetDriver()
#/* -------------------------------------------------------------------- */
#/* Some information messages. */
#/* -------------------------------------------------------------------- */
if bVerbose:
print("INFO: Open of `%s'\n"
" using driver `%s' successful." %
(pszDataSource, poDriver.GetName()))
poDS_Name = poDS.GetName()
if str(type(pszDataSource)) == "<type 'unicode'>" and str(
type(poDS_Name)) == "<type 'str'>":
poDS_Name = str(poDS_Name, "utf8")
if bVerbose and pszDataSource != poDS_Name:
print("INFO: Internal data source name `%s'\n"
" different from user name `%s'." %
(poDS_Name, pszDataSource))
#/* -------------------------------------------------------------------- */
#/* Special case for -sql clause. No source layers required. */
#/* -------------------------------------------------------------------- */
if pszSQLStatement is not None:
poResultSet = None
nRepeatCount = 0 #// skip layer reporting.
if papszLayers is not None:
print("layer names ignored in combination with -sql.")
if pszGeomField is None:
poResultSet = poDS.ExecuteSQL(pszSQLStatement, poSpatialFilter,
pszDialect)
else:
poResultSet = poDS.ExecuteSQL(pszSQLStatement, None, pszDialect)
if poResultSet is not None:
if pszWHERE is not None:
if poResultSet.SetAttributeFilter(pszWHERE) != 0:
print("FAILURE: SetAttributeFilter(%s) failed." % pszWHERE)
return 1
if pszGeomField is not None:
ReportOnLayer(poResultSet, None, pszGeomField, poSpatialFilter,
options)
else:
ReportOnLayer(poResultSet, None, None, None, options)
poDS.ReleaseResultSet(poResultSet)
#gdal.Debug( "OGR", "GetLayerCount() = %d\n", poDS.GetLayerCount() )
for iRepeat in range(nRepeatCount):
if papszLayers is None:
#/* -------------------------------------------------------------------- */
#/* Process each data source layer. */
#/* -------------------------------------------------------------------- */
for iLayer in range(poDS.GetLayerCount()):
poLayer = poDS.GetLayer(iLayer)
if poLayer is None:
print("FAILURE: Couldn't fetch advertised layer %d!" %
iLayer)
return 1
if not bAllLayers:
line = "%d: %s" % (iLayer + 1,
poLayer.GetLayerDefn().GetName())
nGeomFieldCount = poLayer.GetLayerDefn().GetGeomFieldCount(
)
if nGeomFieldCount > 1:
line = line + " ("
for iGeom in range(nGeomFieldCount):
if iGeom > 0:
line = line + ", "
poGFldDefn = poLayer.GetLayerDefn(
).GetGeomFieldDefn(iGeom)
line = line + "%s" % ogr.GeometryTypeToName(
poGFldDefn.GetType())
line = line + ")"
if poLayer.GetLayerDefn().GetGeomType() != ogr.wkbUnknown:
line = line + " (%s)" % ogr.GeometryTypeToName(
poLayer.GetLayerDefn().GetGeomType())
print(line)
else:
if iRepeat != 0:
poLayer.ResetReading()
ReportOnLayer(poLayer, pszWHERE, pszGeomField,
poSpatialFilter, options)
else:
#/* -------------------------------------------------------------------- */
#/* Process specified data source layers. */
#/* -------------------------------------------------------------------- */
for papszIter in papszLayers:
poLayer = poDS.GetLayerByName(papszIter)
if poLayer is None:
print("FAILURE: Couldn't fetch requested layer %s!" %
papszIter)
return 1
if iRepeat != 0:
poLayer.ResetReading()
ReportOnLayer(poLayer, pszWHERE, pszGeomField, poSpatialFilter,
options)
#/* -------------------------------------------------------------------- */
#/* Close down. */
#/* -------------------------------------------------------------------- */
poDS.Destroy()
return 0
def getSupportedVectors(self):
if self.supportedVectors != None:
return self.supportedVectors
# first get the OGR driver manager
QgsApplication.registerOgrDrivers()
self.supportedVectors = dict()
# for each loaded OGR driver
for i in range(ogr.GetDriverCount()):
driver = ogr.GetDriver(i)
if driver == None:
QgsLogger.warning("unable to get driver " + str(i))
continue
driverName = driver.GetName()
longName = ''
glob = []
if driverName.startswith("AVCBin"):
pass #myDirectoryDrivers += "Arc/Info Binary Coverage,AVCBin"
elif driverName.startswith("AVCE00"):
longName = "Arc/Info ASCII Coverage"
glob.append("*.e00")
elif driverName.startswith("BNA"):
longName = "Atlas BNA"
glob.append("*.bna")
elif driverName.startswith("CSV"):
longName = "Comma Separated Value"
glob.append("*.csv")
elif driverName.startswith("DODS"):
pass #myProtocolDrivers += "DODS/OPeNDAP,DODS"
elif driverName.startswith("PGeo"):
pass #myDatabaseDrivers += "ESRI Personal GeoDatabase,PGeo"
# on Windows add a pair to the dict for this driver
if platform.system() == "Windows":
longName = "ESRI Personal GeoDatabase"
glob.append("*.mdb")
elif driverName.startswith("SDE"):
pass #myDatabaseDrivers += "ESRI ArcSDE,SDE"
elif driverName.startswith("ESRI"):
longName = "ESRI Shapefiles"
glob.append("*.shp")
elif driverName.startswith("FMEObjects Gateway"):
longName = "FMEObjects Gateway"
glob.append("*.fdd")
elif driverName.startswith("GeoJSON"):
pass #myProtocolDrivers += "GeoJSON,GeoJSON"
longName = "GeoJSON"
glob.append("*.geojson")
elif driverName.startswith("GeoRSS"):
longName = "GeoRSS"
glob.append("*.xml")
elif driverName.startswith("GML"):
longName = "Geography Markup Language"
glob.append("*.gml")
elif driverName.startswith("GMT"):
longName = "GMT"
glob.append("*.gmt")
elif driverName.startswith("GPX"):
longName = "GPX"
glob.append("*.gpx")
elif driverName.startswith("GRASS"):
pass #myDirectoryDrivers += "Grass Vector,GRASS"
elif driverName.startswith("IDB"):
pass #myDatabaseDrivers += "Informix DataBlade,IDB"
elif driverName.startswith("Interlis 1"):
longName = "INTERLIS 1"
glob.append("*.itf")
glob.append("*.xml")
glob.append("*.ili")
elif driverName.startswith("Interlis 2"):
longName = "INTERLIS 2"
glob.append("*.itf")
glob.append("*.xml")
glob.append("*.ili")
elif driverName.startswith("INGRES"):
pass #myDatabaseDrivers += "INGRES,INGRES"
elif driverName.startswith("KML"):
longName = "KML"
glob.append("*.kml")
elif driverName.startswith("MapInfo File"):
longName = "Mapinfo File"
glob.append("*.mif")
glob.append("*.tab")
elif driverName.startswith("DGN"):
longName = "Microstation DGN"
glob.append("*.dgn")
elif driverName.startswith("MySQL"):
pass #myDatabaseDrivers += "MySQL,MySQL"
elif driverName.startswith("OCI"):
pass #myDatabaseDrivers += "Oracle Spatial,OCI"
elif driverName.startswith("ODBC"):
pass #myDatabaseDrivers += "ODBC,ODBC"
elif driverName.startswith("OGDI"):
pass #myDatabaseDrivers += "OGDI Vectors,OGDI"
elif driverName.startswith("PostgreSQL"):
pass #myDatabaseDrivers += "PostgreSQL,PostgreSQL"
elif driverName.startswith("S57"):
longName = "S-57 Base file"
glob.append("*.000")
elif driverName.startswith("SDTS"):
longName = "Spatial Data Transfer Standard"
glob.append("*catd.ddf")
elif driverName.startswith("SQLite"):
longName = "SQLite"
glob.append("*.sqlite")
elif driverName.startswith("UK .NTF"):
pass #myDirectoryDrivers += "UK. NTF,UK. NTF"
elif driverName.startswith("TIGER"):
pass #myDirectoryDrivers += "U.S. Census TIGER/Line,TIGER"
elif driverName.startswith("VRT"):
longName = "VRT - Virtual Datasource "
glob.append("*.vrt")
elif driverName.startswith("XPlane"):
longName = "X-Plane/Flighgear"
glob.append("apt.dat")
glob.append("nav.dat")
glob.append("fix.dat")
glob.append("awy.dat")
longName = string.strip(longName)
if longName == '':
continue
self.supportedVectors[longName] = {
'EXTENSIONS': glob,
'LONGNAME': longName,
'SHORTNAME': driverName
}
return self.supportedVectors
def drivers(self):
list = []
if ogrAvailable:
for iDriver in range(ogr.GetDriverCount()):
list.append('%s' % ogr.GetDriver(iDriver).GetName())
return list
