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swapCL-AddressRanges.py
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swapCL-AddressRanges.py
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# Script to flip attributes on a centerline.
# arcpy.da.SearchCursor requires ArcGIS 10.1 or higher
# coding help via GIS StackExchange:
# http://gis.stackexchange.com/a/79625/15499
# http://gis.stackexchange.com/questions/79615/is-there-a-programmatic-way-to-swap-attributes-on-a-feature/79625?noredirect=1#comment109573_79625
try:
workspace = r"Database Connections\facilities@5160_93.sde" # set workspace to SDE connection
fields = (["FROMLEFTP", "TORIGHTP", "TOLEFTP", "FROMRIGHTP", "FROMLEFTA",
"TORIGHTA", "TOLEFTA", "FROMRIGHTA", "TRAFFIC_FLOW"]) # set the fields to the ones being flipped
fc = "FACILITIES.Centerline" # set the feature class to the SDE feature class name
fc_shp = "CENTERLINE_FLIPS" # feature class to calculate
field = "FLIP" # calc filed to change
desc = arcpy.Describe(fc_shp) # describe selection of fc_shape
if not desc.FIDSet == '': # an fc_shp is selected
# Marked the discrepancy as done in the CENTERLINE_FLIPS tracking shapefile
arcpy.CalculateField_management(fc_shp,field,'1')
# loops through selected rows and swaps the values
with arcpy.da.UpdateCursor(fc, fields) as cursor:
for row in cursor:
# flips the line direction
arcpy.FlipLine_edit("FACILITIES.Centerline")
# update swaps
row[0], row[1] = row[1], row[0]
row[2], row[3] = row[3], row[2]
row[4], row[5] = row[5], row[4]
row[6], row[7] = row[7], row[6]
# swap directions
if row[8] == 'F':
row[8] = 'R'
cursor.updateRow(row)
elif row[8] == 'R':
row[8] = 'F'
cursor.updateRow(row)
else:
cursor.updateRow(row)
else:
# this is not working at the moment
arcpy.AddError("Error. No {0} features are selected.".format(fc_shp))
print(arcpy.GetMessages())
except Exception as e:
arcpy.AddError(e.message)