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lulc_analyzer.py
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lulc_analyzer.py
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# -*- coding: utf-8 -*-
"""
Created on Mon Sep 24 13:37:24 2018
@author: David Bispo
"""
import archook
import numpy as np
import os
archook.get_arcpy()
import arcpy
from arcpy import env
import pandas as pd
subbasins = r'C:\Users\David\Desktop\Barigui\SwatBarigui7\SwatBarigui7.mdb\ArcHydro\Watershed'
#arcpy.MakeFeatureLayer_management(subbasins, "subbasins_lyr")
temp_workspace = r'C:\Users\David\Documents\ArcGIS\Default.gdb'
landuse = r'D:\OneDrive\Dissertacao\2.GIS Data\2.General Data\Barigui_database.gdb\barigui\brg_usosolo'
#arcpy.MakeFeatureLayer_management(landuse, "landuse_lyr")
def batch_clip(mask,lulc,temp_gdb):
for i in range(1,159):
query = "GRIDCODE = %s"%(i)
arcpy.SelectLayerByAttribute_management ("subbasins_lyr", "NEW_SELECTION", query)
output = os.path.join(temp_workspace,"temp%s"%i)
arcpy.Clip_analysis(lulc, "subbasins_lyr", output)
print ("Creating lulc %s"%i)
print ("Done!")
#batch_clip(mask = subbasins, lulc = landuse, temp_gdb = temp_workspace )
def leusosolo(temp_gdb):
env.workspace = temp_gdb
features = arcpy.ListFeatureClasses()
n = 0
for item in features:
dataDictionary = {}
with arcpy.da.SearchCursor(item, ["SOLOUSO_DE","Shape_Area"]) as cursor:
n+=1
print ("Reading subbasin %s" % n)
for row in cursor:
solouso = row[0]
Shape_Area = row[1]/(1000**2)
dataDictionary["subbasin_number"] = n
if solouso not in dataDictionary.keys():
dataDictionary[solouso] = Shape_Area
else:
current_area = dataDictionary[solouso]
new_area = current_area + Shape_Area
dataDictionary[solouso] = new_area
if item == features[0]:
df = pd.DataFrame(dataDictionary, index=[0])
else:
new_df = pd.DataFrame(dataDictionary,index=[0])
df = df.append(new_df)
df.to_excel("lulc_analysys.xlsx")
print "Data Analysis Complete"
leusosolo(temp_workspace)