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TessOldemeyer
Regular Contributor
since
08-18-2015
09-22-2025
129
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My Ideas
(0 Idea Submissions)Latest Contributions by TessOldemeyer
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I am currently getting an error on 'IDs' not being defined on line 3. Any suggestions for this? I am probably missing something completely obvious. Also, would there still be a performance benefit from creating the transLayer_lyr feature layer outside of the update cursor loop? I am looking to update the Line_Count field within the subLayer feature class vs. the subLayer_lyr, so maybe this negates the need for the subLayer_lyr? Thanks again!
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05-11-2017
02:30 PM
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This certainly speeds it up (total time of 40 seconds on the network), but it is populating the Line_Count field (for subLayer vs. subLayer_lyr) with the total count of TransLayer features vs. the total count of TransLayer features within the specified distance of each feature in subLayer.
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05-10-2017
02:39 PM
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This is the entirety of the non-commented out code that I am running now. I altered it to include your suggestions (Thank you so much by the way!), and it is running at nearly the exact same speed for the Line_Count field update. It is running from a network connection vs. the C:\ drive, so this could be adding to the execution time. Though, it still seems to be taking a bit longer than I had anticipated/hoped, especially for a single field calculation. import arcpy
from arcpy import env
import time
start = time.time()
arcpy.env.OverwriteOutput = True
defaultGdbPath = 'C:\Topo_Check_V5.gdb'
subLayer='C:\Topo_Check_V5.gdb\Subs' #point feature class
transLayer='C:\Topo_Check_V5.gdb\TLS' # line feature class
ppLayer='C:\Topo_Check_V5.gdb\PPS' #point feature class
#add in Line_Count field
arcpy.AddField_management(subLayer, "Line_Count", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
#TLineCountField = "Line_Count"
#MakeFeatureLayer
arcpy.MakeFeatureLayer_management(subLayer, "subLayer_lyr")
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_lyr")
arcpy.SelectLayerByLocation_management("transLayer_lyr", 'WITHIN_A_DISTANCE', "subLayer_lyr", .000002, "NEW_SELECTION")
with arcpy.da.UpdateCursor ("subLayer_lyr", ["Line_Count"]) as LineCountList:
for subrow in LineCountList:
result=int(arcpy.GetCount_management("transLayer_lyr").getOutput(0))
#print result
subrow[0] = result
LineCountList.updateRow(subrow)
print "Line_Count Updated"
del LineCountList
end = time.time()
print (end - start)/60
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05-10-2017
12:48 PM
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4208
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If I include the arcpy.SelectByLocation_management layer selection outside of the update cursor for the first block of the code, the Line_Count field is updated by the script in 34 minutes vs. 80 minutes. Thanks for this advice! However this is still a time consuming update. Any other suggestions for how to optimize this? The subLayer feature class contains 7000 records, transLayer contains 7500 records, and ppLayer contains 800 records; so these aren't massive feature classes, though they are continually growing. import arcpy
from arcpy import env
import time
start = time.time()
arcpy.env.OverwriteOutput = True
defaultGdbPath = 'C:\Topo_Check_V5.gdb'
subLayer='C:\Topo_Check_V5.gdb\Subs' #point feature class
transLayer='C:\Topo_Check_V5.gdb\TLS' # line feature class
ppLayer='C:\Topo_Check_V5.gdb\PPS' #point feature class
###### Line Counts: Count of connecting lines within distance of point feature class ################
#add in Line_Count field
arcpy.AddField_management(subLayer, "Line_Count", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
TLineCountField = "Line_Count"
#MakeFeatureLayer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_lyr")
arcpy.SelectLayerByLocation_management("transLayer_lyr", 'WITHIN_A_DISTANCE', subLayer, .000002, "NEW_SELECTION")
with arcpy.da.UpdateCursor (subLayer, [TLineCountField, "SHAPE@"]) as LineCountList:
for subrow in LineCountList:
#arcpy.SelectLayerByLocation_management("transLayer_lyr", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
result=int(arcpy.GetCount_management("transLayer_lyr").getOutput(0))
#print result
subrow[0] = result
LineCountList.updateRow(subrow)
print "Line_Count Updated"
del LineCountList
end = time.time()
print (end - start)/60
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05-10-2017
09:39 AM
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I'll look into the near table option for trimming down the time consumed by the spatial selects. Could definitely be something to consider. Thanks! My apologies for the long, dense script.
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05-04-2017
08:54 AM
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I am trying to update field in a feature class using attributes from other feature classes. For this, I am currently leveraging spatial joins on feature layers, search cursors, and update cursors. The script runs successfully on small datasets within a few minutes but chugs on large ones. It seems as though this would be a good candidate script to use Richard Fairhurst's /blogs/richard_fairhurst/2014/11/08/turbo-charging-data-manipulation-with-python-cursors-and-dictionaries technique. Though, I am still getting a grasp on how to best use dictionaries to optimize script performance and am unsure of where I can best use these techniques here. Any suggestions on how to boost the speed of this script? Maybe there is another option out there to optimize it? The script is using three feature classes, subLayer, transLayer, and ppLayer to update new fields in the subLayer feature class based on spatial and attribute relationships. I have attached and commented a simplified version of the code here. Some of the blocks are ran multiple time for different attributes, and I have stripped that out here to slim down the code. Thanks in advance! Any advice will be hugely appreciated. import arcpy
from arcpy import env
import time
start = time.time()
arcpy.env.OverwriteOutput = True
defaultGdbPath = 'C:\Topo_Check_V5.gdb'
subLayer='C:\Topo_Check_V5.gdb\Subs' #point feature class
transLayer='C:\Topo_Check_V5.gdb\TLS' # line feature class
ppLayer='C:\Topo_Check_V5.gdb\PPS' #point feature class
###### Line Counts: Count of connecting lines within distance of point feature class ################
#add in Line_Count field
arcpy.AddField_management(subLayer, "Line_Count", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
TLineCountField = "Line_Count"
#MakeFeatureLayer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_lyr")
with arcpy.da.UpdateCursor (subLayer, [TLineCountField, "SHAPE@"]) as LineCountList:
for subrow in LineCountList:
arcpy.SelectLayerByLocation_management("transLayer_lyr", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
result=int(arcpy.GetCount_management("transLayer_lyr").getOutput(0))
#print result
subrow[0] = result
LineCountList.updateRow(subrow)
print "Line_Count Updated"
del LineCountList
###### Line Counts 13.8 : Line counts based on attribute, repeated 9 more times for various attributes ###########
#add in Line_Count_13_8 field
arcpy.AddField_management(subLayer, "Line_Count_13_8", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
TLineCountField_13_8 = "Line_Count_13_8"
#VLTSField = "VLTS"
#Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_13_8")
#where clause
where_13_8 = ' "VLTS" = 13.8 '
with arcpy.da.UpdateCursor (subLayer, [TLineCountField_13_8, "SHAPE@"]) as LineCountList_13_8:
for subrow in LineCountList_13_8:
arcpy.SelectLayerByLocation_management("transLayer_13_8", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
arcpy.SelectLayerByAttribute_management ("transLayer_13_8", "SUBSET_SELECTION", where_13_8)
result=int(arcpy.GetCount_management("transLayer_13_8").getOutput(0))
#print result
subrow[0] = result
LineCountList_13_8.updateRow(subrow)
print "Line_Count_13_8 Updated"
del LineCountList_13_8
######################################################################################################################
############## *** repeat 'Line Counts' for all VLTSs ##########
############################## GU Count --count of interger field from ppLayer###############################
arcpy.AddField_management(subLayer, "GU_Count", "FLOAT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
GUCountField = "GU_Count"
#Make feature layer
arcpy.MakeFeatureLayer_management(ppLayer, "ppLayerGU")
#Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayerGU")
pp_trans_GUJoin ='C:\Topo_Check_V5.gdb\pp_trans_GU_SpatialJoin'
SubLayer_pp_trans_GUJoin = 'C:\Topo_Check_V5.gdb\SubLayer_pp_trans_GUSpatialJoin'
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("transLayerGU", "ppLayerGU", pp_trans_GUJoin, 'JOIN_ONE_TO_MANY', 'KEEP_ALL', '#', 'WITHIN_A_DISTANCE', .0005)
#add new count field for distinct count for PP count
arcpy.AddField_management(pp_trans_GUJoin, "Join_Count_PP", "LONG", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
#calculate field == Join_Count
arcpy.CalculateField_management (pp_trans_GUJoin, "Join_Count_PP", "!Join_Count!", "PYTHON_9.3")
#Make feature layer
arcpy.MakeFeatureLayer_management(subLayer, "SubLayer_Layer")
#Make feature layer
arcpy.MakeFeatureLayer_management(pp_trans_GUJoin, "pp_trans_GUJoin_Layer")
# create a list of fields to sum from pp_trans_GUJoin
fieldNamesToSum = ['Join_Count','GEN_UNITS', 'Join_Count_PP']
# create the field mapping object
fieldMappings = arcpy.FieldMappings()
# populate the field mapping object with the fields from both feature classes
fieldMappings.addTable("SubLayer_Layer")
fieldMappings.addTable("pp_trans_GUJoin_Layer")
# loop through the field names to sum
for Join_Count in fieldNamesToSum:
# get the field map index of this field and get the field map
fieldIndex = fieldMappings.findFieldMapIndex('Join_Count')
fieldMap = fieldMappings.getFieldMap(fieldIndex)
# update the field map with the new merge rule (by default the merge rule is 'First')
fieldMap.mergeRule = 'Sum'
# replace with the updated field map
fieldMappings.replaceFieldMap(fieldIndex, fieldMap)
# loop through the field names to sum
for GEN_UNITS in fieldNamesToSum:
# get the field map index of this field and get the field map
fieldIndex = fieldMappings.findFieldMapIndex('GEN_UNITS')
fieldMap = fieldMappings.getFieldMap(fieldIndex)
# update the field map with the new merge rule (by default the merge rule is 'First')
fieldMap.mergeRule = 'Sum'
# replace with the updated field map
fieldMappings.replaceFieldMap(fieldIndex, fieldMap)
for Join_Count_PP in fieldNamesToSum:
# get the field map index of this field and get the field map
fieldIndex = fieldMappings.findFieldMapIndex('Join_Count_PP')
fieldMap = fieldMappings.getFieldMap(fieldIndex)
# update the field map with the new merge rule (by default the merge rule is 'First')
fieldMap.mergeRule = 'Max'
# replace with the updated field map
fieldMappings.replaceFieldMap(fieldIndex, fieldMap)
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("SubLayer_Layer", "pp_trans_GUJoin_Layer", SubLayer_pp_trans_GUJoin, 'JOIN_ONE_TO_ONE', 'KEEP_ALL', fieldMappings, 'WITHIN_A_DISTANCE', .000002)
#Make feature layer
arcpy.MakeFeatureLayer_management(SubLayer_pp_trans_GUJoin, "JoinLayer")
with arcpy.da.UpdateCursor (subLayer, [GUCountField, "SHAPE@"]) as GUCalcCursor:
for subrow in GUCalcCursor:
arcpy.SelectLayerByLocation_management("JoinLayer", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
if int(arcpy.GetCount_management(in_rows="JoinLayer").getOutput(0))==1:
with arcpy.da.SearchCursor("JoinLayer",['JOIN_COUNT','GEN_UNITS']) as JoinLayerCursor:
for joinsubrow in JoinLayerCursor:
GEN_UNITS = joinsubrow[1]
PPTLINES = joinsubrow[0]
if joinsubrow[1] > 0 and joinsubrow[0] > 0:
result = GEN_UNITS/PPTLINES
else:
result = None
#print result
subrow[0] = result
GUCalcCursor.updateRow(subrow)
####################### NULL or Zero Line Count ---Based off of 'Double' field in transLayer ##################
#add in NULL_ZERO_LINE_COUNT field
arcpy.AddField_management(subLayer, "NULL_ZERO_LINE_COUNT", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
FieldLineCountNULL_ZERO = "NULL_ZERO_LINE_COUNT"
#Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_nullzero")
#where clause
NULL_ZERO_VLTS = ' "VLTS" is NULL or "VLTS" = 0 '
with arcpy.da.UpdateCursor (subLayer, [FieldLineCountNULL_ZERO, "SHAPE@"]) as NullZeroCountList:
for subrow in NullZeroCountList:
arcpy.SelectLayerByLocation_management("transLayer_nullzero", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
arcpy.SelectLayerByAttribute_management ("transLayer_nullzero", "SUBSET_SELECTION",NULL_ZERO_VLTS)
result=int(arcpy.GetCount_management("transLayer_nullzero").getOutput(0))
#print result
subrow[0] = result
NullZeroCountList.updateRow(subrow)
print "NULL_ZERO_LINE_COUNT Updated"
####################### PP LINE COUNT: from transLayer, ppLayer, subLayer spatial join ##################
#add in PP_LINE_COUNT field
arcpy.AddField_management(subLayer, "PP_LINE_COUNT", "LONG", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
FieldPPCount = "PP_LINE_COUNT"
with arcpy.da.UpdateCursor (subLayer, [FieldPPCount, "SHAPE@"]) as ppLineCountList:
for subrow in ppLineCountList:
arcpy.SelectLayerByLocation_management("JoinLayer", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
# JOIN_COUNT is sum of PPs joined to trans lines in the pp_trans_GUJoin spatial join
with arcpy.da.SearchCursor("JoinLayer",['JOIN_COUNT']) as JoinLayerppLineCountCursor:
for joinsubrow in JoinLayerppLineCountCursor:
JOIN_COUNT = joinsubrow[0]
result = JOIN_COUNT
subrow[0] = result
ppLineCountList.updateRow(subrow)
print "PP_LINE_COUNT Updated"
########################### PP_COUNT : from transLayer, ppLayer, subLayer spatial join ######################################
#add in PP_COUNT field
arcpy.AddField_management(subLayer, "PP_COUNT", "LONG", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
FieldPPCount = "PP_COUNT"
with arcpy.da.UpdateCursor (subLayer, [FieldPPCount, "SHAPE@"]) as ppCountList:
for subrow in ppCountList:
arcpy.SelectLayerByLocation_management("JoinLayer", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
with arcpy.da.SearchCursor("JoinLayer",['JOIN_COUNT_PP']) as JoinLayerppCountCursor:
for joinsubrow in JoinLayerppCountCursor:
JOIN_COUNT_PP = joinsubrow[0]
result = JOIN_COUNT_PP
subrow[0] = result
ppCountList.updateRow(subrow)
print "PP_COUNT Updated"
################################################# unique subs by VLTS - 13.8 : based off of transLayer attributes and transLayer,subLayer spatial join ########################
#add in UNIQUE_SUB_COUNT_13_8 field
arcpy.AddField_management(subLayer, "UNIQUE_SUB_COUNT_13_8", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
UNIQUE_SUB_COUNT_13_8 = "UNIQUE_SUB_COUNT_13_8"
# Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_uniquesubs")
#SUB1SUB2 = "SUB1SUB2"
arcpy.AddField_management("transLayer_uniquesubs", "SUB1SUB2", "TEXT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
#SUB1SUB2_CalcField = ' "SUB_1" + ', ' + "SUB_2" + ', ' '
arcpy.CalculateField_management ("transLayer_uniquesubs", "SUB1SUB2", ' [SUB_1] + "," + [SUB_2] ')
#where clause
where_unique_13_8 = ' "VLTS" = 13.8 '
with arcpy.da.UpdateCursor (subLayer, [UNIQUE_SUB_COUNT_13_8, "SHAPE@"]) as UNIQUE_SUB_COUNT_13_8_List:
for subrow in UNIQUE_SUB_COUNT_13_8_List:
arcpy.SelectLayerByLocation_management("transLayer_uniquesubs", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
arcpy.SelectLayerByAttribute_management ("transLayer_uniquesubs", "SUBSET_SELECTION", where_unique_13_8)
arcpy.DeleteIdentical_management("transLayer_uniquesubs", ['SUB1SUB2'])
result=int(arcpy.GetCount_management("transLayer_uniquesubs").getOutput(0))
#print result
subrow[0] = result
UNIQUE_SUB_COUNT_13_8_List.updateRow(subrow)
print "UNIQUE_SUB_COUNT_13_8 Updated"
##############repeat 'unique subs by VLTS' for all 9 VLTSs ##########
################################################# unique VLTS : based off of transLayer attributes and transLayer,subLayer spatial join ########################
#add in UNIQUE_VLTS_COUNT field
arcpy.AddField_management(subLayer, "UNIQUE_VLTS_COUNT", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
UNIQUE_VLTS_COUNT= "UNIQUE_VLTS_COUNT"
# Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayer_uniqueVLTSs")
with arcpy.da.UpdateCursor (subLayer, [UNIQUE_VLTS_COUNT, "SHAPE@"]) as UNIQUE_VLTS_COUNT_List:
for subrow in UNIQUE_VLTS_COUNT_List:
arcpy.SelectLayerByLocation_management("transLayer_uniqueVLTSs", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
arcpy.DeleteIdentical_management("transLayer_uniqueVLTSs", ['VLTS'])
result=int(arcpy.GetCount_management("transLayer_uniqueVLTSs").getOutput(0))
#print result
subrow[0] = result
UNIQUE_VLTS_COUNT_List.updateRow(subrow)
print "UNIQUE_VLTS_COUNT Updated"
#########################################################################
end = time.time()
print (end - start)/60
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05-03-2017
10:10 AM
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Thanks! That was definitely a huge part of the problem. I have attached the newest rendition. It is still probably full of quirks, but seems to be getting somewhere. It is currently getting stuck on line 66 with an AttributeError: 'str' object has no attribute 'updateRow'. import arcpy
from arcpy import env
arcpy.env.OverwriteOutput = True
defaultGdbPath = 'C:\Topo_Check_Tess_V5.gdb'
subLayer='C:\Topo_Check_Tess_V5.gdb\Subs'
transLayer='C:\Topo_Check_Tess_V5.gdb\TLines'
ppLayer='C:\Topo_Check_Tess_V5.gdb\PP'
arcpy.AddField_management(subLayer, "GU_Count", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
GUCountField = "GU_Count"
#Make feature layer
arcpy.MakeFeatureLayer_management(ppLayer, "ppLayerGU")
#Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayerGU")
pp_trans_GUJoin ='C:\Topo_Check_Tess_V5.gdb\pp_trans_GU_SpatialJoin'
SubLayer_pp_trans_GUJoin = 'C:\Topo_Check_Tess_V5.gdb\SubLayer_pp_trans_GUSpatialJoin'
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("transLayerGU", "ppLayerGU", pp_trans_GUJoin, 'JOIN_ONE_TO_ONE', 'KEEP_ALL', '#', 'WITHIN_A_DISTANCE', .000002)
#Make feature layer
arcpy.MakeFeatureLayer_management(subLayer, "SubLayer_Layer")
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("SubLayer_Layer", "ppLayerGU", SubLayer_pp_trans_GUJoin, 'JOIN_ONE_TO_ONE', 'KEEP_ALL', '#', 'WITHIN_A_DISTANCE', .000002)
#Make feature layer
arcpy.MakeFeatureLayer_management(SubLayer_pp_trans_GUJoin, "JoinLayer")
with arcpy.da.UpdateCursor (subLayer, [GUCountField, "SHAPE@"]) as GUCalcCursor:
for subrow in GUCalcCursor:
arcpy.SelectLayerByLocation_management("JoinLayer", 'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
if int(arcpy.GetCount_management(in_rows="JoinLayer").getOutput(0))==1:
with arcpy.da.SearchCursor("JoinLayer",['LINES','GEN_UNITS']) as JoinLayerCursor:
for joinsubrow in JoinLayerCursor:
GEN_UNITS = joinsubrow[1]
LINES = joinsubrow[0]
print GEN_UNITS
print LINES
if joinsubrow[1] > 0:
result = GEN_UNITS/LINES
else:
result = 0
print result
subrow[0] = result
GUCountField.updateRow(subrow)
... View more
04-12-2017
03:34 PM
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I am trying to update a field using the arcpy.da.Update cursor where I can use two field values from a select by location result to populate a new field. It seems like a spatial join route may be the best approach here. With this code, I am now receiving an error of 'tuple' object has no attribute 'GEN_UNITS' for the 'result = joinsubrow.GEN_UNITS/joinsubrow.LINES' line. Do I need to search out these field values separately in separate search cursors? What would be the best route here? Thanks in advance! import arcpy
from arcpy import env
arcpy.env.OverwriteOutput = True
defaultGdbPath = 'C:\Topo_Check_Tess_V5.gdb'
subLayer='C:\Topo_Check_Tess_V5.gdb\Subs'
transLayer='C:\Topo_Check_Tess_V5.gdb\TLines'
ppLayer='C:\Topo_Check_Tess_V5.gdb\PPs'
arcpy.AddField_management(subLayer, "GU_Count", "SHORT", "", "", "", "", "NULLABLE", "NON_REQUIRED", "")
GUCountField = "GU_Count"
#Make feature layer
arcpy.MakeFeatureLayer_management(ppLayer, "ppLayerGU")
#Make feature layer
arcpy.MakeFeatureLayer_management(transLayer, "transLayerGU")
pp_trans_GUJoin ='C:\Topo_Check_Tess_V5.gdb\pp_trans_GU_SpatialJoin'
SubLayer_pp_trans_GUJoin ='C:\Topo_Check_Tess_V5.gdb\SubLayer_pp_trans_GUSpatialJoin'
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("transLayerGU", "ppLayerGU", pp_trans_GUJoin,'JOIN_ONE_TO_ONE', 'KEEP_ALL', '#', 'WITHIN_A_DISTANCE', .000002)
#Make feature layer
arcpy.MakeFeatureLayer_management(subLayer, "SubLayer_Layer")
#spatial join of feature layers
arcpy.SpatialJoin_analysis ("SubLayer_Layer", "ppLayerGU", SubLayer_pp_trans_GUJoin, 'JOIN_ONE_TO_ONE', 'KEEP_ALL', '#','WITHIN_A_DISTANCE', .000002)
#Make feature layer
arcpy.MakeFeatureLayer_management(SubLayer_pp_trans_GUJoin, "JoinLayer")
LINE_Fields = ['LINES','GEN_UNITS']
with arcpy.da.UpdateCursor (subLayer, [GUCountField, "SHAPE@"]) as GUCalcCursor:
for subrow in GUCalcCursor:
arcpy.SelectLayerByLocation_management("JoinLayer",'WITHIN_A_DISTANCE', subrow[1], .000002, "NEW_SELECTION")
with arcpy.da.SearchCursor("JoinLayer", LINE_Fields) as JoinLayerCursor:
for joinsubrow in JoinLayerCursor:
result = joinsubrow.GEN_UNITS/joinsubrow.LINES
subrow[0] = result
GUCountField.updateRow(subrow)
... View more
04-12-2017
12:46 PM
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Thanks. I will recreate this and be sure to save as tool this time. This was just a batch for adding many (30 some) fields of various data types, and I was trying to minimize the pain of the arduous redo
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02-28-2017
08:53 PM
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Is there a way to run a previously executed geoprocessing tool from the log file .xmls? I ran a tool as a batch a while back, and it is no longer showing up in my geoprocessing results; though, I would like to reuse most of the input information (if possible) on a new feature class. Thanks in advance! Tess
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02-28-2017
06:12 PM
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A post in GIS Stack Exchange provided a solution for this as well as some additional useful comments. Though, as this script will be applied to large data sets where efficiency will be a necessity, I will need to look into wrapping in more geoprocessing tools (i.e. near table, frequency table, and others) into this process. Thanks for all the great feedback!
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02-15-2017
07:50 AM
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So I think it is only printing the last row in 'result' for the Line_Count update statement. Is there an efficient way for result (i.e. result=int(arcpy.GetCount_management("tLayer_lyr").getOutput(0)) ) to be saved as a list or an array that can be written to the Line_Count field? Thanks again, Tess
... View more
02-14-2017
11:15 AM
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This process was initially built off of a Model Builder model (for simplicity), namely using a bunch of spatial joins; though as the data set is so large, I am trying to redo the process with an object oriented script for more efficient computation and use. This count generation will be the first step of many within the new script.
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02-14-2017
09:31 AM
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My kudoed posts
| Title | Kudos | Posted |
|---|---|---|
| 1 | 09-19-2018 11:46 AM | |
| 1 | 04-10-2018 03:47 PM | |
| 1 | 10-01-2018 08:50 AM | |
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- Got a Kudo for 'ERROR 000584: Implementation of this tool's validate is invalid' . 01-04-2024 07:31 AM
- Got a Kudo for Web AppBuilder - Limit Legend Items Based on Filters or Map Extent. 12-19-2023 12:12 PM
- Kudoed please sign in to access the item on for RavinHasseea1. 04-07-2023 01:40 PM
- Kudoed Re: Disconnect SDE Connection in Pro for George_Thompson. 05-04-2022 11:35 AM
- Got a Kudo for Re: 'ERROR 000584: Implementation of this tool's validate is invalid' . 11-11-2020 02:05 AM
- Got a Kudo for Re: Calculate field values using arcpy.da.UpdateCursor. 11-11-2020 02:05 AM
- Posted Re: How to add previous geoprocessing service task result to a geoprocessing task in the same GP service? on ArcGIS JavaScript Maps SDK Questions. 02-14-2019 01:37 PM
- Posted How to add previous geoprocessing service task result to a geoprocessing task in the same GP service? on ArcGIS JavaScript Maps SDK Questions. 02-04-2019 06:15 PM
- Got a Kudo for Show Profile of Multiple DEMs in Elevation Profile Widget . 10-22-2018 12:30 PM
- Posted Re: Elevation Profile Widget Version 2.17 - 9/19/2020 on Web AppBuilder Custom Widgets Documents. 10-22-2018 08:44 AM
- Posted Show Profile of Multiple DEMs in Elevation Profile Widget on ArcGIS JavaScript Maps SDK Questions. 10-19-2018 04:08 PM
- Posted Re: Elevation Profile Widget Version 2.17 - 9/19/2020 on Web AppBuilder Custom Widgets Documents. 10-19-2018 08:27 AM
- Posted Re: 'ERROR 000584: Implementation of this tool's validate is invalid' on Geoprocessing Questions. 10-01-2018 08:50 AM
- Posted 'ERROR 000584: Implementation of this tool's validate is invalid' on Geoprocessing Questions. 09-19-2018 11:46 AM
- Tagged 'ERROR 000584: Implementation of this tool's validate is invalid' on Geoprocessing Questions. 09-19-2018 11:46 AM
- Posted Date Field to Numeric Value on Python Questions. 08-29-2018 10:18 AM
- Tagged Date Field to Numeric Value on Python Questions. 08-29-2018 10:18 AM
- Posted Align Subsurface Multipatch to Terrain on ArcGIS Pro Questions. 08-24-2018 01:30 PM
- Tagged Align Subsurface Multipatch to Terrain on ArcGIS Pro Questions. 08-24-2018 01:30 PM
- Posted Re: Disabling Basemap in Local 3D Scene on ArcGIS Web AppBuilder Questions. 08-22-2018 09:21 AM
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