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Write ArcPy cursor results to a text file in different folders with a different name based on cursor condition. Define function is not working.Multiprocessing
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06-02-2019
07:48 AM
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Middle section of the code, I separate the attribute value in a different category ("AAA","BBB","CCC") and every category have Ten land-use types, initially, I set Three land use type (LAND_10, LAND_20, LAND_30) for test code. Now I used the update cursor for different land-use type(LAND_10, LAND_20, LAND_30) , and saved the text file to there corresponding Land use folders(Like, Land_10 ....Land_30) under the "AAA" folder. similarly, this function I will use for categories "BBB","CCC" .
Initially, I write this code for category "AAA" but I want to use this function for category "BBB","CCC" by defining a function(uncheck all define function), but is not working. Below is my code please check it.
First of all, I want to reduce my code (Because I have 10 land type initially I write three) and the whole function I want to use as a defined function for a different category.
Another thing is Multiprocessing, Multithreading I want to use this function for the code because of initially my code takes much more time for one processes. In my case how to use the multiprocessing function.
please look at this matter and give me a suggestion to manipulate this code.
import datetime
start = datetime.datetime.now()
print 'start run: %s\n' % (start)
import arcpy ,os ,sys,csv,errno
from arcpy import env
from arcpy.sa import *
import datetime
import re
import glob
import itertools
arcpy.env.overwriteOutput = True
import multiprocessing as mp
print("Number of processors: ", mp.cpu_count())
cellsize = "F:\\DB_test_data\\TEST_RAY\\TEST1\\MOD02HKM_A2017001_0530_NDVI_AA.img"
d1="F:\\DB_test_data\\VAR2\\cldmask\\tt"
CLDMASK = glob.glob(d1 + os.sep + "*.Aerosol_Cldmask_Land_Ocean-Aerosol_Cldmask_Land_Ocean.tif")
CLDMASK.sort()
if CLDMASK is None:
print 'Could not open the CLDMASK raster files'
sys.exit(1)
else:
print 'The CLDMASK raster files was opened successfully'
#print CLDMASK
d2="F:\\DB_test_data\\TEST_RAY\\TEST1"
NDVI = glob.glob(d2 + os.sep + "*A2017001_0530_NDVI_AA.img")
NDVI.sort()
if NDVI is None:
print 'Could not open the NDVI raster files'
sys.exit(1)
else:
print 'The NDVI raster files was opened successfully'
#print NDVI
d3="F:\\DB_test_data\\VAR2\\IDL\\MOD02HKM\\TEST"
BAND1 = glob.glob(d3 + os.sep + "*A2017001_0530_006_BAND_1.img")
BAND1.sort()
if BAND1 is None:
print 'Could not open the BAND1 raster files'
sys.exit(1)
else:
print 'The BAND1 raster files was opened successfully'
#print BAND1
d4="F:\\DB_test_data\\VAR2\\IDL\\MOD02HKM\\TEST"
BAND2 = glob.glob(d4 + os.sep + "*A2017001_0530_006_BAND_2.img")
BAND2.sort()
if BAND2 is None:
print 'Could not open the BAND2 raster files'
sys.exit(1)
else:
print 'The BAND2 raster files was opened successfully'
#print BAND2
d4="F:\\DB_test_data\\VAR2\\IDL\\MOD09\\TEST"
BAND3 = glob.glob(d4 + os.sep + "*A2017001_0530_006_BAND_3.img")
BAND3.sort()
if BAND3 is None:
print 'Could not open the BAND3 raster files'
sys.exit(1)
else:
print 'The BAND3 raster files was opened successfully'
#print BAND3
d5="F:\\DB_test_data\\VAR2\\IDL\\MOD02HKM\\TEST"
BAND4 = glob.glob(d5 + os.sep + "*A2017001_0530_006_BAND_4.img")
BAND4.sort()
if BAND4 is None:
print 'Could not open the BAND4 raster files'
sys.exit(1)
else:
print 'The BAND4 raster files was opened successfully'
#print BAND4
d6 = r"F:\\DB_test_data\\VAR2\\MOD04_l2"
AOD = glob.glob(d6 + os.sep + "*Corrected_Optical_Depth_Land_2-Corrected_Optical_Depth_Land.tif")
AOD.sort()
if AOD is None:
print 'Could not open the AOD raster files'
sys.exit(1)
else:
print 'The AOD raster files was opened successfully'
Scale_factor = float(0.0010000000474974513)
add_offset = float(0.0)
Fill_value = float(-9999)
outdir="F:\\DB_test_data\\VAR4\\"
for a,b,c,d,e,f,g in zip (CLDMASK ,NDVI ,BAND1 ,BAND2 ,BAND3 ,BAND4,AOD):
print ("processing:"+ a)
arcpy.AddMessage("processing:{}".format(b.split('\\')[4][9:30]))
name = c.split("\\")
filename=name[6][9:33]
print filename
arcpy.AddMessage("processing:{}".format(d.split('\\')[6][9:33]))
arcpy.AddMessage("processing:{}".format(e.split('\\')[6][9:30]))
arcpy.AddMessage("processing:{}".format(f.split('\\')[6][9:33]))
print ("processing:"+ g)
#######################################################################
setnull =arcpy.gp.SetNull_sa(g,g, "in_memory/dat", "\"Value\" = -9999")
ras=arcpy.Raster(setnull)
Data=(ras-add_offset)*Scale_factor
da = Con((Data >= 0.0) & (Data <= 0.1),1)
# Process: Extract by Cloud_Mask
tempEnvironment0 = arcpy.env.cellSize
arcpy.env.cellSize = "MAXOF"
ndvi_msk=arcpy.gp.ExtractByMask_sa(b, a)
Band1_mask=arcpy.gp.ExtractByMask_sa(c, a)
Band2_mask=arcpy.gp.ExtractByMask_sa(d, a)
Band3_mask=arcpy.gp.ExtractByMask_sa(e, a)
Band4_mask=arcpy.gp.ExtractByMask_sa(f, a)
arcpy.env.cellSize = tempEnvironment0
# Process: Extract by Mask using AOD less than 0.1 value
tempEnvironment0 = arcpy.env.cellSize
arcpy.env.cellSize = cellsize
ndvi_msk1=arcpy.gp.ExtractByMask_sa(ndvi_msk, da)
Band1_mask1=arcpy.gp.ExtractByMask_sa(Band1_mask, da)
Band2_mask2=arcpy.gp.ExtractByMask_sa(Band2_mask, da)
Band3_mask3=arcpy.gp.ExtractByMask_sa(Band2_mask, da)
Band4_mask4=arcpy.gp.ExtractByMask_sa(Band2_mask, da)
arcpy.env.cellSize = tempEnvironment0
try:
# Raster to point
field ="VALUE"
Point=arcpy.RasterToPoint_conversion(ndvi_msk1,"in_memory/fileroot",field)
shape=arcpy.sa.ExtractMultiValuesToPoints(Point,[[ndvi_msk1,"NDVI"],[Band1_mask1,"Band1"],[Band2_mask2,"Band2"],
[Band3_mask3 ,"Band3"],[Band4_mask4,"Band4"]], "NONE")
#Add Two Fields Name and Name2
[arcpy.AddField_management(shape,field_name, "TEXT", field_length = 50)
for field_name in ["Name", "Name2"]]
arcpy.AddMessage("Successfully Added NAME fields ")
fieldss = ['Band1','Name']
with arcpy.da.UpdateCursor(shape, fieldss) as cursor:
for row in cursor:
if (row[0] > 0.02 and row[0] < 0.06):
row[1] = 'AAA'
print ("processing1:""{0:.8f}, {1}".format(row[0], row[1]))
elif (row[0] >= 0.06 and row[0] < 0.09):
row[1] = 'BBB'
# print ("processing1:""{0:.8f}, {1}".format(row[0], row[1]))
elif (row[0] >= 0.09):
row[1] = 'CCC'
else:
row[1] = 'NA'
# Update the cursor with the updated list
cursor.updateRow(row)
# Process: Select Layer By Attribute for separate the catagories "AAA","BBB,"CCC"
arcpy.MakeFeatureLayer_management(shape,"lyr1")
AAA = arcpy.SelectLayerByAttribute_management("lyr1", "NEW_SELECTION", "\"Name\" = 'AAA'")
print "Successfully Process : Select Layer By Attribute for AAA "
arcpy.MakeFeatureLayer_management(shape,"lyr2")
BBB = arcpy.SelectLayerByAttribute_management("lyr2", "NEW_SELECTION", "\"Name\" = 'BBB'")
print "Successfully Process : Select Layer By Attribute for BBB "
arcpy.MakeFeatureLayer_management(shape,"lyr3")
CCC = arcpy.SelectLayerByAttribute_management("lyr3", "NEW_SELECTION", "\"Name\" = 'CCC'")
print "Successfully Process : Select Layer By Attribute for CCC "
# Writing tables for categories("AAA","BBB,"CCC") and individual category have three Land type
# that will be save in different folder and their individual name
#------------------First we write category "AAA" and their indiviual land type--------------------------------------#
category="AAA"
file_name=filename
base_path = r"F:\\DB_test_data\\VAR4\\"
#def TableTotext(Input_Data,base_path,category,file_name):
#def Land_10():
land_use='LAND_10'
outdir = os.path.join(base_path,category,land_use)
if not os.path.exists(outdir):
print('\nCreating new output directory!\n'+outdir+'\n')
os.makedirs(outdir)
else:
print ("Directory already exists" )
ras_name = os.path.join(outdir,("{0}_{1}{2}_{3}".format(category,file_name,land_use,".txt")))
fields = ['NDVI', 'Band1', 'Band2','Band3','Name',"Name2"]
with open(ras_name, 'wb') as txtfile:
arcpy.AddMessage("fields Writing For landuse 10")
txtfile.write(" {0} {1} {2} {3} {4} {5}\n".format(fields[0],fields[1],fields[2],fields[3],fields[4],fields[5]))
with arcpy.da.UpdateCursor(AAA, fields) as cursor:
for row in cursor:
if (row[0] > 0.10 and row[0] < 0.20):
row[5] = 'landuse_10'
print ("processing_A:""{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.write("{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}\n".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.close()
print ("Successfully save the landuse 10 " )
#return Land_10
#def Land_20():
land_use='LAND_20'
outdir = os.path.join(base_path,category,land_use)
if not os.path.exists(outdir):
print('\nCreating new output directory!\n'+outdir+'\n')
os.makedirs(outdir)
else:
print ("Directory already exists" )
ras_name = os.path.join(outdir,("{0}_{1}{2}_{3}".format(category,file_name,land_use,".txt")))
fields = ['NDVI', 'Band1', 'Band2','Band3','Name',"Name2"]
with open(ras_name, 'wb') as txtfile:
arcpy.AddMessage("fields Writing For landuse 20")
txtfile.write(" {0} {1} {2} {3} {4} {5}\n".format(fields[0],fields[1],fields[2],fields[3],fields[4],fields[5]))
with arcpy.da.UpdateCursor(AAA, fields) as cursor:
for row in cursor:
if (row[0] >= 0.20 and row[0] < 0.50):
row[5] = 'landuse_20'
print ("processing_B:""{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.write("{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}\n".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.close()
print ("Successfully save the landuse 20 " )
#return Land_20
#def Land_30():
land_use='LAND_30'
outdir = os.path.join(base_path,category,land_use)
if not os.path.exists(outdir):
print('\nCreating new output directory!\n'+outdir+'\n')
os.makedirs(outdir)
else:
print ("Directory already exists" )
ras_name = os.path.join(outdir,("{0}_{1}{2}_{3}".format(category,file_name,land_use,".txt")))
fields = ['NDVI', 'Band1', 'Band2','Band3','Name',"Name2"]
with open(ras_name, 'wb') as txtfile:
arcpy.AddMessage("fields Writing For landuse 30")
txtfile.write(" {0} {1} {2} {3} {4} {5}\n".format(fields[0],fields[1],fields[2],fields[3],fields[4],fields[5]))
with arcpy.da.UpdateCursor(AAA, fields) as cursor:
for row in cursor:
if (row[0] >= 0.50):
row[5] = 'landuse_30'
print ("processing_C:""{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.write("{0:.8f} {1:.8f} {2:.8f} {3:.8f} {4} {5}\n".format(row[0],row[1],row[2], row[3],row[4],row[5]))
txtfile.close()
print ("Successfully save the landuse 30 " )
#return LAND_30
#------------------Second we write category "BBB" and their indiviual land type--------------------------------------#
print "Code is OK"
except:
print "Error in Code"
print arcpy.GetMessages()
print 'finished run: %s\n\n' % (datetime.datetime.now() - start)
Solved! Go to Solution.
41 Replies
06-19-2019
09:51 AM
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Thank you, sir,I will manipulate my code as per your suggestion.
06-21-2019
05:06 AM
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Luke Webb Sir, can I get your contact information (email address)?
My email address is bijoygayen123@gmail.com
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