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index_setsm.py
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import os, sys, string, shutil, glob, re, logging, json, pickle
import datetime
from osgeo import gdal, osr, ogr, gdalconst
import argparse
import numpy
from numpy import flatnonzero
from lib import utils, dem
try:
import ConfigParser
except ImportError:
import configparser as ConfigParser
class GdalErrorHandler(object):
def __init__(self):
self.err_level=gdal.CE_None
self.err_no=0
self.err_msg=''
def handler(self, err_level, err_no, err_msg):
self.err_level=err_level
self.err_no=err_no
self.err_msg=err_msg
err=GdalErrorHandler()
handler=err.handler # Note don't pass class method directly or python segfaults
gdal.PushErrorHandler(handler)
gdal.UseExceptions() #Exceptions will get raised on anything >= gdal.CE_Failure
#### Create Logger
logger = logging.getLogger("logger")
logger.setLevel(logging.DEBUG)
FORMAT_OPTIONS = {
'SHP':'ESRI Shapefile',
'GDB':'ESRI Geodatabase',
'PG':'PostgreSQL Database (PG:<config.ini section with connection info>:<layer name>}',
}
FORMAT_HELP = ['{}:{},'.format(k,v) for k, v in FORMAT_OPTIONS.items()]
PROJECTS = {
'arcticdem': 'ArcticDEM',
'rema': 'REMA',
'earthdem': 'EarthDEM',
}
mask_strip_suffixes = (
'_dem_water-masked.tif',
'_dem_cloud-masked.tif',
'_dem_cloud-water-masked.tif',
'_dem_masked.tif'
)
MODES = {
## mode : (class, suffix, groupid_fld, field_def)
'scene': (dem.SetsmScene, '_meta.txt', 'stripdemid',
utils.SCENE_ATTRIBUTE_DEFINITIONS, utils.SCENE_ATTRIBUTE_DEFINITIONS_REGISTRATION),
'strip': (dem.SetsmDem, '_dem.tif', 'stripdemid',
utils.DEM_ATTRIBUTE_DEFINITIONS, utils.DEM_ATTRIBUTE_DEFINITIONS_REGISTRATION),
'tile': (dem.SetsmTile, '_dem.tif', 'supertile_id',
utils.TILE_DEM_ATTRIBUTE_DEFINITIONS, utils.TILE_DEM_ATTRIBUTE_DEFINITIONS_REGISTRATION),
}
id_flds = ['SCENEDEMID', 'STRIPDEMID', 'DEM_ID', 'TILE', 'LOCATION', 'INDEX_DATE']
recordid_map = {
'scene': '{SCENEDEMID}|{STRIPDEMID}|{LOCATION}|{INDEX_DATE}',
'strip': '{DEM_ID}|{STRIPDEMID}|{LOCATION}|{INDEX_DATE}',
'tile': '{DEM_ID}|{TILE}|{LOCATION}|{INDEX_DATE}',
}
BP_PATH_PREFIX = 'https://blackpearl-data2.pgc.umn.edu/dems/setsm'
TNVA_PATH_PREFIX = '/mnt/pgc/data/elev/dem/setsm'
# handle unicode in Python 3
try:
unicode('')
except NameError:
unicode = str
def main():
#### Set Up Arguments
parser = argparse.ArgumentParser(
description="build setsm DEM index"
)
#### Positional Arguments
parser.add_argument('src', help="source directory or image")
parser.add_argument('dst', help="destination index dataset (use PG:<config.ini section name>:<layer name> for a postgresql DB")
#### Optional Arguments
parser.add_argument('--mode', choices=MODES.keys(), default='scene',
help="type of items to index {} default=scene".format(MODES.keys()))
parser.add_argument('--config', default=os.path.join(os.path.dirname(sys.argv[0]),'config.ini'),
help="config file (default is config.ini in script dir")
parser.add_argument('--epsg', type=int, default=4326,
help="egsg code for output index projection (default wgs85 geographic epsg:4326)")
parser.add_argument('--dsp-original-res', action='store_true', default=False,
help='write index of downsampled product (dsp) scenes as original resolution (mode=scene only)')
parser.add_argument('--status', help='custom value for status field')
parser.add_argument('--include-registration', action='store_true', default=False,
help='include registration info if present (mode=strip and tile only)')
parser.add_argument('--search-masked', action='store_true', default=False,
help='search for masked and unmasked DEMs (mode=strip only)')
parser.add_argument('--read-json', action='store_true', default=False,
help='search for json files instead of images to populate the index')
parser.add_argument('--write-json', action='store_true', default=False,
help='write results to json files in dst folder')
parser.add_argument('--log', help="directory for log output")
parser.add_argument('--overwrite', action='store_true', default=False,
help="overwrite existing index")
parser.add_argument('--append', action='store_true', default=False,
help="append records to existing index")
parser.add_argument('--check', action='store_true', default=False,
help='verify new records exist in target index (not compatible with --write-json)')
parser.add_argument('--skip-region-lookup', action='store_true', default=False,
help="skip region lookup on danco (used for testing)")
parser.add_argument("--write-pickle", help="store region lookup in a pickle file. skipped if --write-json is used")
parser.add_argument("--read-pickle", help='read region lookup from a pickle file. skipped if --write-json is used')
parser.add_argument("--bp-paths", action='store_true', default=False, help='Use BlackPearl path schema')
parser.add_argument("--tnva-paths", action='store_true', default=False, help='Use Terranova path schema')
parser.add_argument('--project', choices=PROJECTS.keys(), help='project name (required when writing tiles)')
parser.add_argument('--dryrun', action='store_true', default=False, help='run script without inserting records')
#### Parse Arguments
args = parser.parse_args()
#### Verify Arguments
if not os.path.isdir(args.src) and not os.path.isfile(args.src):
parser.error("Source directory or file does not exist: %s" %args.src)
#src = os.path.abspath(args.src)
src = args.src
dst = args.dst
if args.overwrite and args.append:
parser.error('--append and --overwrite are mutually exclusive')
if args.write_json and args.append:
parser.error('--append cannot be used with the --write-json option')
if (args.write_json or args.read_json) and args.search_masked:
parser.error('--search-masked cannot be used with the --write-json or --read-json options')
if args.mode != 'strip' and args.search_masked:
parser.error('--search-masked applies only to mode=strip')
if args.write_json and args.check:
parser.error('--check cannot be used with the --write-json option')
## Check project
if args.mode == 'tile' and not args.project:
parser.error("--project option is required if when mode=tile")
if args.write_pickle:
if not os.path.isdir(os.path.dirname(args.write_pickle)):
parser.error("Pickle file must be in an existing directory")
if args.read_pickle:
if not os.path.isfile(args.read_pickle):
parser.error("Pickle file must be an existing file")
if args.status and args.bp_paths:
parser.error("--bp-paths sets status field to 'tape' and cannot be used with --status")
if args.tnva_paths and args.bp_paths:
parser.error("--bp-paths and --tnva-paths are incompatible options")
if args.mode != 'scene' and args.dsp_original_res:
parser.error("--dsp-original-res is applicable only when mode = scene")
if args.bp_paths:
db_path_prefix = BP_PATH_PREFIX
elif args.tnva_paths:
db_path_prefix = TNVA_PATH_PREFIX
else:
db_path_prefix = None
#### Set up loggers
lsh = logging.StreamHandler()
lsh.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s %(levelname)s- %(message)s','%m-%d-%Y %H:%M:%S')
lsh.setFormatter(formatter)
logger.addHandler(lsh)
if args.log:
if os.path.isdir(args.log):
tm = datetime.datetime.now()
logfile = os.path.join(args.log,"index_setsm_{}.log".format(tm.strftime("%Y%m%d%H%M%S")))
else:
parser.error('log folder does not exist: {}'.format(args.log))
lfh = logging.FileHandler(logfile)
lfh.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s %(levelname)s- %(message)s','%m-%d-%Y %H:%M:%S')
lfh.setFormatter(formatter)
logger.addHandler(lfh)
## Check path if --write-json is invoked
if args.write_json:
if not os.path.isdir(dst):
parser.error("Destination must be an existing directory with --write-json option")
ogr_driver_str = None
if args.epsg:
logger.warning('--epsg and --dsp-original-res will be ignored with the --write-json option')
## If not writing to JSON, get OGR driver, ds name, and layer name
else:
try:
ogr_driver_str, dst_dsp, dst_lyr = utils.get_source_names2(dst)
except RuntimeError as e:
parser.error(e)
ogrDriver = ogr.GetDriverByName(ogr_driver_str)
if ogrDriver is None:
parser.error("Driver is not available: {}".format(ogr_driver_str))
#### Get Config file contents
try:
config = ConfigParser.SafeConfigParser()
except NameError:
config = ConfigParser.ConfigParser() # ConfigParser() replaces SafeConfigParser() in Python >=3.2
config.read(args.config)
#### Get output DB connection if specified
if ogr_driver_str in ("PostgreSQL"):
section = dst_dsp
if section in config.sections():
conn_info = {
'host':config.get(section,'host'),
'port':config.getint(section,'port'),
'name':config.get(section,'name'),
'schema':config.get(section,'schema'),
'user':config.get(section,'user'),
'pw':config.get(section,'pw'),
}
dst_ds = "PG:host={host} port={port} dbname={name} user={user} password={pw} active_schema={schema}".format(**conn_info)
else:
logger.error('Config.ini file must contain credentials to connect to {}'.format(section))
sys.exit(-1)
#### Set dataset path is SHP or GDB
elif ogr_driver_str in ("ESRI Shapefile","FileGDB"):
dst_ds = dst_dsp
else:
logger.error("Format {} is not supported".format(ogr_driver_str))
## Get pairname-region dict
if args.skip_region_lookup or args.mode == 'tile':
pairs = {}
else:
if args.read_pickle:
logger.info("Fetching region lookup from pickle file")
pairs = pickle.load(open(args.read_pickle, "rb"))
else:
#### Get Danco connection if available
section = 'danco'
if section in config.sections():
danco_conn_info = {
'host':config.get(section,'host'),
'port':config.getint(section,'port'),
'name':config.get(section,'name'),
'schema':config.get(section,'schema'),
'user':config.get(section,'user'),
'pw':config.get(section,'pw'),
}
logger.info("Fetching region lookup from Danco")
pairs = get_pair_region_dict(danco_conn_info)
else:
logger.warning('Config file does not contain credentials to connect to Danco. Region cannot be determined.')
pairs = {}
if len(pairs) == 0:
logger.warning("Cannot get region-pair lookup")
if args.tnva_paths:
logger.error("Region-pair lookup required for --tnva-paths option")
sys.exit()
## Save pickle if selected
if args.write_pickle:
logger.info("Pickling region lookup")
pickle.dump(pairs, open(args.write_pickle, "wb"))
#### Test epsg
try:
spatial_ref = utils.SpatialRef(args.epsg)
except RuntimeError as e:
parser.error(e)
#### Test if dst table exists
if ogr_driver_str == 'ESRI Shapefile' and os.path.isfile(dst_ds):
if args.overwrite:
logger.info("Removing old index... %s" %os.path.basename(dst_ds))
if not args.dryrun:
ogrDriver.DeleteDataSource(dst_ds)
elif not args.append:
logger.error("Dst shapefile exists. Use the --overwrite or --append options.")
sys.exit(-1)
if ogr_driver_str == 'FileGDB' and os.path.isdir(dst_ds):
ds = ogrDriver.Open(dst_ds,1)
if ds:
for i in range(ds.GetLayerCount()):
lyr = ds.GetLayer(i)
if lyr.GetName() == dst_lyr:
if args.overwrite:
logger.info("Removing old index layer: {}".format(dst_lyr))
del lyr
ds.DeleteLayer(i)
break
elif not args.append:
logger.error("Dst GDB layer exists. Use the --overwrite or --append options.")
sys.exit(-1)
ds = None
## Postgres check - do not overwrite
if ogr_driver_str == 'PostgreSQL':
ds = ogrDriver.Open(dst_ds,1)
if ds:
for i in range(ds.GetLayerCount()):
lyr = ds.GetLayer(i)
if lyr.GetName() == dst_lyr:
if args.overwrite:
logger.info("Removing old index layer: {}".format(dst_lyr))
del lyr
ds.DeleteLayer(i)
break
elif not args.append:
logger.error("Dst DB layer exists. Use the --overwrite or --append options.")
sys.exit(-1)
ds = None
#### ID records
dem_class, suffix, groupid_fld, fld_defs_base, reg_fld_defs = MODES[args.mode]
if args.mode == 'strip' and args.search_masked:
suffix = mask_strip_suffixes + tuple([suffix])
fld_defs = fld_defs_base + reg_fld_defs if args.include_registration else fld_defs_base
src_fps = []
records = []
logger.info('Identifying DEMs')
if os.path.isfile(src):
logger.info(src)
src_fps.append(src)
else:
for root,dirs,files in os.walk(src):
for f in files:
if (f.endswith('.json') and args.read_json) or (f.endswith(suffix)):
logger.debug(os.path.join(root,f))
src_fps.append(os.path.join(root,f))
for src_fp in src_fps:
if args.read_json:
temp_records = read_json(os.path.join(src_fp),args.mode)
records.extend(temp_records)
else:
try:
record = dem_class(src_fp)
record.get_dem_info()
except RuntimeError as e:
logger.error( e )
else:
if args.mode == 'scene' and not os.path.isfile(record.dspinfo) and args.dsp_original_res:
logger.error("Record {} has no Dsp downsample info file: {}, skipping".format(record.id,record.dspinfo))
else:
records.append(record)
total = len(records)
if total == 0:
logger.info("No valid records found")
else:
logger.info("{} records found".format(total))
## Group into strips or tiles for json writing
groups = {}
for record in records:
groupid = getattr(record,groupid_fld)
if groupid in groups:
groups[groupid].append(record)
else:
groups[groupid] = [record]
#### Write index
if args.write_json:
write_to_json(dst, groups, total, args)
else:
write_result = write_to_ogr_dataset(ogr_driver_str, ogrDriver, dst_ds, dst_lyr, groups,
pairs, total, db_path_prefix, fld_defs, args)
if write_result:
sys.exit(0)
else:
sys.exit(-1)
def write_to_ogr_dataset(ogr_driver_str, ogrDriver, dst_ds, dst_lyr, groups, pairs, total, db_path_prefix, fld_defs, args):
## Create dataset if it does not exist
if ogr_driver_str == 'ESRI Shapefile':
max_fld_width = 254
if os.path.isfile(dst_ds):
ds = ogrDriver.Open(dst_ds,1)
else:
ds = ogrDriver.CreateDataSource(dst_ds)
elif ogr_driver_str == 'FileGDB':
max_fld_width = 1024
if os.path.isdir(dst_ds):
ds = ogrDriver.Open(dst_ds,1)
else:
ds = ogrDriver.CreateDataSource(dst_ds)
elif ogr_driver_str == 'PostgreSQL':
max_fld_width = 1024
# DB must already exist
ds = ogrDriver.Open(dst_ds,1)
else:
logger.error("Format {} is not supported".format(ogr_driver_str))
if args.status:
status = args.status
elif args.bp_paths:
status = 'tape'
else:
status = 'online'
if ds is not None:
## Create table if it does not exist
layer = ds.GetLayerByName(dst_lyr)
fld_list = [f.fname for f in fld_defs]
err.err_level = gdal.CE_None
tgt_srs = utils.osr_srs_preserve_axis_order(osr.SpatialReference())
tgt_srs.ImportFromEPSG(args.epsg)
if err.err_level >= gdal.CE_Warning:
raise RuntimeError(err.err_level, err.err_no, err.err_msg)
if not layer:
logger.info("Creating table...")
layer = ds.CreateLayer(dst_lyr, tgt_srs, ogr.wkbMultiPolygon)
if layer:
for field_def in fld_defs:
field = ogr.FieldDefn(field_def.fname, field_def.ftype)
field.SetWidth(min(max_fld_width, field_def.fwidth))
field.SetPrecision(field_def.fprecision)
layer.CreateField(field)
## Append Records
if layer:
# Get field widths
lyr_def = layer.GetLayerDefn()
fwidths = {lyr_def.GetFieldDefn(i).GetName().upper(): lyr_def.GetFieldDefn(i).GetWidth() for i in range(lyr_def.GetFieldCount())}
logger.info("Appending records...")
#### loop through records and add features
i=0
recordids = []
invalid_record_cnt = 0
for groupid in groups:
for record in groups[groupid]:
i+=1
progress(i,total,"features written")
feat = ogr.Feature(layer.GetLayerDefn())
valid_record = True
## Set attributes
## Fields for scene DEM
if args.mode == 'scene':
attrib_map = {
'SCENEDEMID': record.dsp_sceneid if (args.dsp_original_res and record.is_dsp) else record.sceneid,
'STRIPDEMID': record.dsp_stripdemid if (args.dsp_original_res and record.is_dsp) else record.stripdemid,
'STATUS': status,
'PAIRNAME': record.pairname,
'SENSOR1': record.sensor1,
'SENSOR2': record.sensor2,
'ACQDATE1': record.acqdate1.strftime('%Y-%m-%d'),
'ACQDATE2': record.acqdate2.strftime('%Y-%m-%d'),
'CATALOGID1': record.catid1,
'CATALOGID2': record.catid2,
'HAS_LSF': int(os.path.isfile(record.lsf_dem)),
'HAS_NONLSF': int(os.path.isfile(record.dem)),
'IS_XTRACK': int(record.is_xtrack),
'IS_DSP': 0 if args.dsp_original_res else int(record.is_dsp),
'ALGM_VER': record.algm_version,
'PROJ4': record.proj4,
'EPSG': record.epsg,
}
attr_pfx = 'dsp_' if args.dsp_original_res else ''
for k in record.filesz_attrib_map:
attrib_map[k.upper()] = getattr(record,'{}{}'.format(attr_pfx,k))
# Test if filesz attr is valid for dsp original res records
if args.dsp_original_res:
if attrib_map['FILESZ_DEM'] is None:
logger.error(
"Original res filesz_dem is empty for {}. Record skipped".format(record.sceneid))
valid_record = False
elif attrib_map['FILESZ_DEM'] == 0:
logger.warning(
"Original res filesz_dem is 0 for {}. Record will still be written".format(record.sceneid))
# Test if filesz attr is valid for normal records
elif not attrib_map['FILESZ_DEM'] and not attrib_map['FILESZ_LSF']:
logger.warning(
"DEM and LSF DEM file size is zero or null for {}. Record will still be written".format(record.sceneid))
valid_record = False
# Set region
try:
region = pairs[record.pairname]
except KeyError as e:
region = None
else:
attrib_map['REGION'] = region
if db_path_prefix:
if args.bp_paths:
# https://blackpearl-data2.pgc.umn.edu/dem/setsm/scene/WV02/2015/05/
# WV02_20150506_1030010041510B00_1030010043050B00_50cm_v040002.tar
custom_path = "{}/{}/{}/{}/{}.tar".format(
args.mode, # mode (scene, strip, tile)
record.pairname[:4], # sensor
record.pairname[5:9], # year
record.pairname[9:11], # month
groupid # mode-specific group ID
)
elif args.tnva_paths:
# /mnt/pgc/data/elev/dem/setsm/ArcticDEM/region/arcticdem_01_iceland/scenes/
# 2m/WV01_20200630_10200100991E2C00_102001009A862700_2m_v040204/
# WV01_20200630_10200100991E2C00_102001009A862700_504471479080_01_P001_504471481090_01_P001_2_meta.txt
if not region:
logger.error("Pairname not found in region lookup {}, cannot built custom path".format(record.pairname))
valid_record = False
else:
pretty_project = PROJECTS[region.split('_')[0]]
res_dir = record.res_str + '_dsp' if record.is_dsp else record.res_str
custom_path = "{}/{}/region/{}/scenes/{}/{}/{}".format(
db_path_prefix,
pretty_project, # project (e.g. ArcticDEM)
region, # region
res_dir, # e.g. 2m, 50cm, 2m_dsp
groupid, # strip ID
record.srcfn # file name (meta.txt)
)
else:
logger.error("Mode {} does not support the specified custom path option, skipping record".format(args.mode))
valid_record = False
## Fields for strip DEM
if args.mode == 'strip':
attrib_map = {
'DEM_ID': record.stripid,
'STRIPDEMID': record.stripdemid,
'PAIRNAME': record.pairname,
'SENSOR1': record.sensor1,
'SENSOR2': record.sensor2,
'ACQDATE1': record.acqdate1.strftime('%Y-%m-%d'),
'ACQDATE2': record.acqdate2.strftime('%Y-%m-%d'),
'CATALOGID1': record.catid1,
'CATALOGID2': record.catid2,
'IS_LSF': int(record.is_lsf),
'IS_XTRACK': int(record.is_xtrack),
'EDGEMASK': int(record.mask_tuple[0]),
'WATERMASK': int(record.mask_tuple[1]),
'CLOUDMASK': int(record.mask_tuple[2]),
'ALGM_VER': record.algm_version,
'FILESZ_DEM': record.filesz_dem,
'FILESZ_MT': record.filesz_mt,
'FILESZ_OR': record.filesz_or,
'FILESZ_OR2': record.filesz_or2,
'PROJ4': record.proj4,
'EPSG': record.epsg,
'GEOCELL': record.geocell,
}
## Set region
try:
region = pairs[record.pairname]
except KeyError as e:
pass
else:
attrib_map['REGION'] = region
if record.version:
attrib_map['REL_VER'] = record.version
if record.density:
attrib_map['DENSITY'] = record.density
else:
attrib_map['DENSITY'] = -9999
## If registration info exists
if args.include_registration:
if len(record.reginfo_list) > 0:
for reginfo in record.reginfo_list:
if reginfo.name == 'ICESat':
attrib_map["DX"] = reginfo.dx
attrib_map["DY"] = reginfo.dy
attrib_map["DZ"] = reginfo.dz
attrib_map["REG_SRC"] = 'ICESat'
attrib_map["NUM_GCPS"] = reginfo.num_gcps
attrib_map["MEANRESZ"] = reginfo.mean_resid_z
## Set path folders for use if db_path_prefix specified
if db_path_prefix:
if args.bp_paths:
custom_path = "{}/{}/{}/{}/{}/{}.tar".format(
db_path_prefix,
args.mode, # mode (scene, strip, tile)
record.pairname[:4], # sensor
record.pairname[5:9], # year
record.pairname[9:11], # month
groupid # mode-specific group ID
)
else:
logger.error("Mode {} does not support the specified custom path option, skipping record".format(args.mode))
valid_record = False
## Fields for tile DEM
if args.mode == 'tile':
attrib_map = {
'DEM_ID': record.tileid,
'TILE': record.tilename,
'NUM_COMP': record.num_components,
'FILESZ_DEM': record.filesz_dem,
}
## Optional attributes
if record.version:
attrib_map['REL_VER'] = record.version
version = record.version
else:
version = 'novers'
if record.density:
attrib_map['DENSITY'] = record.density
else:
attrib_map['DENSITY'] = -9999
if args.include_registration:
if record.reg_src:
attrib_map["REG_SRC"] = record.reg_src
attrib_map["NUM_GCPS"] = record.num_gcps
if record.mean_resid_z:
attrib_map["MEANRESZ"] = record.mean_resid_z
## Set path folders for use if db_path_prefix specified
if db_path_prefix:
if args.bp_paths:
custom_path = "{}/{}/{}/{}/{}/{}.tar".format(
db_path_prefix,
record.mode, # mode (scene, strip, tile)
args.project.lower(), # project
record.res, # resolution
version, # version
groupid # mode-specific group ID
)
else:
logger.error("Mode {} does not support the specified custom path option, skipping record".format(args.mode))
valid_record = False
## Common fields
if valid_record:
## Common Attributes across all modes
attrib_map['INDEX_DATE'] = datetime.datetime.today().strftime('%Y-%m-%d')
attrib_map['CR_DATE'] = record.creation_date.strftime('%Y-%m-%d')
attrib_map['ND_VALUE'] = record.ndv
if args.dsp_original_res:
res = record.dsp_dem_res
else:
res = (record.xres + record.yres) / 2.0
attrib_map['DEM_RES'] = res
## Set location
if db_path_prefix:
location = custom_path
else:
location = record.srcfp
attrib_map['LOCATION'] = location
## Transform and write geom
src_srs = utils.osr_srs_preserve_axis_order(osr.SpatialReference())
src_srs.ImportFromWkt(record.proj)
if not record.geom:
logger.error('No valid geom found, feature skipped: {}'.format(record.sceneid))
valid_record = False
else:
temp_geom = record.geom.Clone()
transform = osr.CoordinateTransformation(src_srs,tgt_srs)
try:
temp_geom.Transform(transform)
except TypeError as e:
logger.error('Geom transformation failed, feature skipped: {} {}'.format(e, record.sceneid))
valid_record = False
else:
## Get centroid coordinates
centroid = temp_geom.Centroid()
if 'CENT_LAT' in fld_list:
attrib_map['CENT_LAT'] = centroid.GetY()
attrib_map['CENT_LON'] = centroid.GetX()
## If srs is geographic and geom crosses 180, split geom into 2 parts
if tgt_srs.IsGeographic:
## Get Lat and Lon coords in arrays
lons = []
lats = []
ring = temp_geom.GetGeometryRef(0) #### assumes a 1 part polygon
for j in range(0, ring.GetPointCount()):
pt = ring.GetPoint(j)
lons.append(pt[0])
lats.append(pt[1])
## Test if image crosses 180
if max(lons) - min(lons) > 180:
split_geom = wrap_180(temp_geom)
feat_geom = split_geom
else:
mp_geom = ogr.ForceToMultiPolygon(temp_geom)
feat_geom = mp_geom
else:
mp_geom = ogr.ForceToMultiPolygon(temp_geom)
feat_geom = mp_geom
## Write feature
if valid_record:
for fld,val in attrib_map.items():
if fld in fwidths:
if isinstance(val, str) and len(val) > fwidths[fld]:
logger.warning("Attribute value {} is too long for field {} (width={}). Feature skipped".format(
val, fld, fwidths[fld]
))
valid_record = False
else:
logger.warning("Field {} is not in target table. Feature skipped".format(fld))
valid_record = False
if sys.version_info[0] < 3: # force unicode to str for a bug in Python2 GDAL's SetField.
fld = fld.encode('utf-8')
val = val if not isinstance(val, unicode) else val.encode('utf-8')
feat.SetField(fld, val)
feat.SetGeometry(feat_geom)
## Add new feature to layer
if not valid_record:
invalid_record_cnt += 1
else:
if not args.dryrun:
# Store record identifiers for later checking
recordids.append(recordid_map[args.mode].format(**attrib_map))
# Append record
err.err_level = gdal.CE_None
try:
if ogr_driver_str in ('PostgreSQL'):
layer.StartTransaction()
layer.CreateFeature(feat)
layer.CommitTransaction()
else:
layer.CreateFeature(feat)
except Exception as e:
raise e
else:
if err.err_level >= gdal.CE_Warning:
raise RuntimeError(err.err_level, err.err_no, err.err_msg)
finally:
gdal.PopErrorHandler()
if invalid_record_cnt > 0:
logger.info("{} invalid records skipped".format(invalid_record_cnt))
if len(recordids) == 0 and not args.dryrun:
logger.error("No valid records found")
sys.exit(-1)
# Check contents of layer for all records
if args.check and not args.dryrun:
logger.info("Checking for new records in target table")
layer.ResetReading()
attrib_maps = [{id_fld: feat.GetField(id_fld) for id_fld in id_flds if id_fld in fld_list} for feat in layer]
layer_recordids = [recordid_map[args.mode].format(**attrib_map) for attrib_map in attrib_maps]
layer_recordids = set(layer_recordids)
err_cnt = 0
for recordid in recordids:
if recordid not in layer_recordids:
err_cnt += 1
logger.error("Record not found in target layer: {}".format(recordid))
if err_cnt > 0:
sys.exit(-1)
else:
logger.error('Cannot open layer: {}'.format(dst_lyr))
ds = None
sys.exit(-1)
ds = None
else:
logger.info("Cannot open dataset: {}".format(dst_ds))
sys.exit(-1)
if args.dryrun:
logger.info("Done (dryrun)")
else:
logger.info("Done")
sys.exit(0)
def read_json(json_fp, mode):
json_fh = open(json_fp,'r')
records = []
try:
md = json.load(json_fh, object_hook=decode_json)
except ValueError as e:
logger.error("Cannot decode json in {}: {}".format(json_fp,e))
else:
dem_class = MODES[mode][0]
for k in md:
try:
record = dem_class(k,md[k])
except RuntimeError as e:
logger.error("Record {}: {}".format(k,e))
else:
records.append(record)
return records
def write_to_json(json_fd, groups, total, args):
i=0
for groupid, items in groups.items():
md = {}
if args.mode == 'tile':
json_fn = "{}_{}".format(args.project,groupid)
json_fp = "{}.json".format(os.path.join(json_fd,json_fn))
else:
json_fp = "{}.json".format(os.path.join(json_fd,groupid))
if os.path.isfile(json_fp) and args.overwrite:
os.remove(json_fp)
if not os.path.isfile(json_fp):
if not args.dryrun:
# open json
json_fh = open(json_fp,'w')
for item in items:
i+=1
progress(i,total,"records written")
# organize scene obj into dict and write to json
md[item.id] = item.__dict__
json_txt = json.dumps(md, default=encode_json)
#print json_txt
if not args.dryrun:
json_fh.write(json_txt)
json_fh.close()
else:
logger.info("Json file already exists {}. Use --overwrite to overwrite".format(json_fp))
def get_pair_region_dict(conn_info):
"""Fetches a pairname-region lookup dictionary from Danco's footprint DB
pairnames_with_earthdem_region table
"""
pairs = {}
conn_str = "PG:host={host} port={port} dbname={name} user={user} password={pw} active_schema={schema}".format(**conn_info)
stereo_ds = ogr.Open(conn_str)
if stereo_ds is None:
logger.warning("Could not connect to footprint db")
else:
stereo_lyr = stereo_ds.GetLayer("public.pairname_with_earthdem_region")
if stereo_lyr is None:
logger.warning("Could not obtain public.pairname_with_earthdem_region layer")
stereo_ds = None
else:
pairs = {f["pairname"]:f["region_id"] for f in stereo_lyr}
return pairs
def progress(count, total, suffix=''):
bar_len = 60
filled_len = int(round(bar_len * count / float(total)))
percents = round(100.0 * count / float(total), 1)
bar = '=' * filled_len + '-' * (bar_len - filled_len)
sys.stdout.write('[%s] %s%s ...%s\r' % (bar, percents, '%', suffix))
sys.stdout.flush() # As suggested by Rom Ruben
def wrap_180(src_geom):
## create 2 point lists for west component and east component
west_points = []
east_points = []
## for each point in geom except final point
ring = src_geom.GetGeometryRef(0) #### assumes a 1 part polygon
for i in range(0, ring.GetPointCount()-1):
pt1 = ring.GetPoint(i)
pt2 = ring.GetPoint(i+1)
## test if point is > or < 0 and add to correct bin
if pt1[0] < 0:
west_points.append(pt1)
else:
east_points.append(pt1)
## test if segment to next point crosses 180 (x is opposite sign)
if (pt1[0] > 0) - (pt1[0] < 0) != (pt2[0] > 0) - (pt2[0] < 0):
## if segment crosses,calculate interesection point y value
pt3_y = calc_y_intersection_180(pt1, pt2)
## add intersection point to both bins (make sureot change 180 to -180 for western list)
pt3_west = ( -180, pt3_y )
pt3_east = ( 180, pt3_y )
west_points.append(pt3_west)
east_points.append(pt3_east)
#print "west", len(west_points)
#for pt in west_points:
# print pt[0], pt[1]
#
#print "east", len(east_points)
#for pt in east_points:
# print pt[0], pt[1]
## cat point lists to make multipolygon(remember to add 1st point to the end)
geom_multipoly = ogr.Geometry(ogr.wkbMultiPolygon)
for ring_points in west_points, east_points:
if len(ring_points) > 0:
poly = ogr.Geometry(ogr.wkbPolygon)
ring = ogr.Geometry(ogr.wkbLinearRing)
for pt in ring_points:
ring.AddPoint(pt[0],pt[1])
ring.AddPoint(ring_points[0][0],ring_points[0][1])
poly.AddGeometry(ring)
geom_multipoly.AddGeometry(poly)
del poly
del ring
#print geom_multipoly
return geom_multipoly
def calc_y_intersection_180(pt1, pt2):
#### add 360 to all x coords < 0
if pt1[0] < 0:
pt1_x = pt1[0] + 360
else:
pt1_x = pt1[0]
if pt2[0] < 0:
pt2_x = pt2[0] + 360
else:
pt2_x = pt2[0]
rise = pt2[1] - pt1[1]
run = pt2_x - pt1_x
run_prime = 180.0 - pt1_x