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rural_aanwezigheid_peilscheidingen.py
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rural_aanwezigheid_peilscheidingen.py
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# (c) Nelen & Schuurmans. GPL licensed, see LICENSE.txt
# -*- coding: utf-8 -*-
import logging
import sys
import os
import traceback
import tempfile
from turtlebase.logutils import LoggingConfig
from turtlebase import mainutils
import turtlebase.arcgis
import turtlebase.filenames
log = logging.getLogger(__name__)
def populate_ident(gp, fc, fieldname_ident):
'''
'''
fieldname_objectid = 'OBJECTID'
rows = gp.UpdateCursor(fc)
row = rows.Next()
while row:
ident_value = row.getValue(fieldname_objectid)
row.SetValue(fieldname_ident, ident_value)
rows.UpdateRow(row)
row = rows.Next()
def create_where_clause_kunstwerken_zonder_peilscheiding(gp, fc, fieldname_ident1, fieldname_ident2, list_idents):
'''
Creates a where clause usable in arcgis. for all items NOT in provided list_idents
'''
where_clause1 = create_where_clause_peilscheiding_vereist(gp, fc, fieldname_ident1, list_idents)
where_clause2 = create_where_clause_peilscheiding_vereist(gp, fc, fieldname_ident2, list_idents)
return where_clause1 + " OR " + where_clause2
def create_where_clause_peilscheiding_vereist(gp, fc, fieldname_object, objects_list):
'''
Creates a where clause usable in arcgis. For all items NOT provided in
'''
list_ident_values_wc = []
rows = gp.SearchCursor(fc)
row = rows.Next()
while row:
ident_value_wc = row.getValue(fieldname_object)
if not ident_value_wc in objects_list:
if ident_value_wc != None:
list_ident_values_wc.append('"' + fieldname_object + '"' + ' = ' + "'" + str(ident_value_wc) + "'")
row = rows.Next()
where_clause = " OR ".join(list_ident_values_wc)
return where_clause
def read_idents(gp, fc, fieldname_ident):
'''
Uses gp object to read out all values available in fieldname_ident in fc
returns them as a list.
'''
list_idents = []
rows = gp.SearchCursor(fc)
row = rows.Next()
while row:
ident_value = row.GetValue(fieldname_ident)
if not ident_value in list_idents:
if ident_value!= None:
list_idents.append(ident_value)
else:
log.debug('De ident %s komt dubbel voor in %s' %(ident_value,fc))
row = rows.Next()
return list_idents
def main():
try:
gp = mainutils.create_geoprocessor()
config = mainutils.read_config(__file__, 'turtle-settings.ini')
logfile = mainutils.log_filename(config)
logging_config = LoggingConfig(gp, logfile=logfile)
mainutils.log_header(__name__)
#---------------------------------------------------------------------
# Create workspace
workspace = config.get('GENERAL', 'location_temp')
if workspace == "-":
workspace = tempfile.gettempdir()
turtlebase.arcgis.delete_old_workspace_gdb(gp, workspace)
if not os.path.isdir(workspace):
os.makedirs(workspace)
workspace_gdb, errorcode = turtlebase.arcgis.create_temp_geodatabase(
gp, workspace)
if errorcode == 1:
log.error("failed to create a file geodatabase in %s" % workspace)
#---------------------------------------------------------------------
# Input parameters
"""
nodig voor deze tool:
"""
if len(sys.argv) == 8:
peilvakken_input = sys.argv[1]
watergangen_as_input = sys.argv[2]
stuwen_input = sys.argv[3]
gemalen_input = sys.argv[4]
afstand_input = sys.argv[5]
output_peilscheiding_vereist = sys.argv[6]
output_kunstwerken_zonder_peilscheiding = sys.argv[7]
else:
log.warning("usage: <argument1> <argument2>")
#sys.exit(1)
for argv in sys.argv[1:5]:
turtlebase.filenames.check_filename(argv)
for argv in sys.argv[6:]:
turtlebase.filenames.check_filename(argv)
#---------------------------------------------------------------------
# Check geometry input parameters
log.info("Check geometry of input parameters")
geometry_check_list = []
#log.debug(" - check <input >: %s" % argument1)
if not turtlebase.arcgis.is_file_of_type(gp, peilvakken_input, 'Polygon'):
log.error("%s is not a %s feature class!" % (peilvakken_input, 'Polygon'))
geometry_check_list.append("%s -> (%s)" % (peilvakken_input, 'Polygon'))
if not turtlebase.arcgis.is_file_of_type(gp, watergangen_as_input, 'Polyline'):
log.error("%s is not a %s feature class!" % (watergangen_as_input, 'Polyline'))
geometry_check_list.append("%s -> (%s)" % (watergangen_as_input, 'Polyline'))
if not turtlebase.arcgis.is_file_of_type(gp, stuwen_input, 'Point'):
log.error("%s is not a %s feature class!" % (stuwen_input, 'Point'))
geometry_check_list.append("%s -> (%s)" % (stuwen_input, 'Point'))
if not turtlebase.arcgis.is_file_of_type(gp, gemalen_input, 'Point'):
log.error("%s is not a %s feature class!" % (gemalen_input, 'Point'))
geometry_check_list.append("%s -> (%s)" % (gemalen_input, 'Point'))
if len(geometry_check_list) > 0:
log.error("check input: %s" % geometry_check_list)
sys.exit(2)
#---------------------------------------------------------------------
# Check required fields in input data
log.info("Check required fields in input data")
missing_fields = []
kstident_fieldname = config.get('GENERAL', 'kstident')
kgmident_fieldname = config.get('GENERAL', 'kgmident')
check_fields = {stuwen_input: [kstident_fieldname],
gemalen_input: [kgmident_fieldname]}
for input_fc, fieldnames in check_fields.items():
for fieldname in fieldnames:
if not turtlebase.arcgis.is_fieldname(
gp, input_fc, fieldname):
errormsg = "fieldname %s not available in %s" % (
fieldname, input_fc)
log.error(errormsg)
missing_fields.append(errormsg)
if len(missing_fields) > 0:
log.error("missing fields in input data: %s" % missing_fields)
sys.exit(2)
#---------------------------------------------------------------------
# Environments
# Create temp files
kunstwerken_merged = turtlebase.arcgis.get_random_file_name(workspace_gdb, "")
kunstwerken_merged_buffer = turtlebase.arcgis.get_random_file_name(workspace_gdb, "")
peilscheidingen = turtlebase.arcgis.get_random_file_name(workspace_gdb, "")
correcte_peilscheidingen = turtlebase.arcgis.get_random_file_name(workspace_gdb, "")
peilscheidingen_buffer = turtlebase.arcgis.get_random_file_name(workspace_gdb, "")
# Read kunstwerken ids
log.info('Reading which kunstwerken are available')
log.info('Stuwen')
list_stuwen_idents =read_idents(gp, stuwen_input, kstident_fieldname)
log.info('Gemalen')
list_gemalen_idents = read_idents(gp, gemalen_input, kgmident_fieldname)
# Process: Merge kunstwerken tot 1 bestand
log.info('Samenvoegen kunstwerken')
gp.Merge_management("%s;%s" %(stuwen_input,gemalen_input), kunstwerken_merged)
# Process: Intersect
log.info('Bepalen vereiste locaties peilscheidingen')
gp.Intersect_analysis("%s #;%s #" %(watergangen_as_input, peilvakken_input), peilscheidingen, "ALL", "", "POINT")
# Aanmaken unieke ident peilscheidingen
peilscheidingident_fieldname = 't_id'
if turtlebase.arcgis.is_fieldname(gp, peilscheidingen, peilscheidingident_fieldname) == False:
gp.Addfield_management(peilscheidingen, peilscheidingident_fieldname, 'TEXT')
# Populate ident peilscheidingen
populate_ident(gp, peilscheidingen, peilscheidingident_fieldname)
# Process: Buffer kunstwerken met door gebruiker ingegeven afstand
log.info('Bufferen peilscheidingen')
afstand_input_value = "%s Meters" %afstand_input
gp.Buffer_analysis(peilscheidingen, peilscheidingen_buffer, afstand_input_value)
# Process: Intersect (2)
log.info('Controle aanwezige peilscheidingen')
gp.Intersect_analysis("%s #;%s #" %(kunstwerken_merged, peilscheidingen_buffer), correcte_peilscheidingen, "ALL", "", "POINT")
# Tijdelijke proces:
log.info('Selecteren van locaties waar verwachte peilscheiding niet aanwezig')
list_peilscheidingen_idents = read_idents(gp, correcte_peilscheidingen, peilscheidingident_fieldname)
where_clause_peilscheiding_vereist = create_where_clause_peilscheiding_vereist(gp, peilscheidingen, peilscheidingident_fieldname, list_peilscheidingen_idents)
gp.Select_analysis(peilscheidingen, output_peilscheiding_vereist, where_clause_peilscheiding_vereist)
log.info('Selecteren van kunstwerken die niet op een peilscheiding liggen')
# Create list met kunstwerken die op een peilscheiding liggen
list_kst_met_peilscheiding = read_idents(gp, correcte_peilscheidingen, kstident_fieldname)
list_kgm_met_peilscheiding = read_idents(gp, correcte_peilscheidingen, kgmident_fieldname)
list_kunstwerken_met_peilscheiding = list_kgm_met_peilscheiding + list_kst_met_peilscheiding
where_clause_kw_zonder_peilscheiding = create_where_clause_kunstwerken_zonder_peilscheiding(gp, kunstwerken_merged, kstident_fieldname, kgmident_fieldname, list_kunstwerken_met_peilscheiding)
gp.Select_analysis(kunstwerken_merged, output_kunstwerken_zonder_peilscheiding, where_clause_kw_zonder_peilscheiding)
#---------------------------------------------------------------------
# Delete temporary workspace geodatabase & ascii files
try:
log.debug("delete temporary workspace: %s" % workspace_gdb)
#gp.delete(workspace_gdb)
log.info("workspace deleted")
except:
log.warning("failed to delete %s" % workspace_gdb)
mainutils.log_footer()
except:
log.error(traceback.format_exc())
sys.exit(1)
finally:
logging_config.cleanup()
del gp