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Extract_Pedons_from_NASIS.py
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Extract_Pedons_from_NASIS.py
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#-------------------------------------------------------------------------------
# Name: Extract Pedons from NASIS
#
# Author: Adolfo.Diaz
# e-mail: [email protected]
# phone: 608.662.4422 ext. 216
#
# Author: Jason.Nemecek
# e-mail: [email protected]
# phone: 608.662.4422 ext. 190
#
# Created: 7/04/2016
# Last Modified: 5/18/2017
# Copyright: (c) Adolfo.Diaz 2016
#-------------------------------------------------------------------------------
## ===================================================================================
class ExitError(Exception):
pass
## ===================================================================================
def AddMsgAndPrint(msg, severity=0):
# prints message to screen if run as a python script
# Adds tool message to the geoprocessor
#
#Split the message on \n first, so that if it's multiple lines, a GPMessage will be added for each line
try:
print msg
#for string in msg.split('\n'):
#Add a geoprocessing message (in case this is run as a tool)
if severity == 0:
arcpy.AddMessage(msg)
elif severity == 1:
arcpy.AddWarning(msg)
elif severity == 2:
arcpy.AddError("\n" + msg)
except:
pass
## ===================================================================================
def errorMsg():
try:
exc_type, exc_value, exc_traceback = sys.exc_info()
theMsg = "\t" + traceback.format_exception(exc_type, exc_value, exc_traceback)[1] + "\n\t" + traceback.format_exception(exc_type, exc_value, exc_traceback)[-1]
AddMsgAndPrint(theMsg,2)
except:
AddMsgAndPrint("Unhandled error in errorMsg method", 2)
pass
### ===================================================================================
def setScratchWorkspace():
""" This function will set the scratchWorkspace for the interim of the execution
of this tool. The scratchWorkspace is used to set the scratchGDB which is
where all of the temporary files will be written to. The path of the user-defined
scratchWorkspace will be compared to existing paths from the user's system
variables. If there is any overlap in directories the scratchWorkspace will
be set to C:\TEMP, assuming C:\ is the system drive. If all else fails then
the packageWorkspace Environment will be set as the scratchWorkspace. This
function returns the scratchGDB environment which is set upon setting the scratchWorkspace"""
try:
AddMsgAndPrint("\nSetting Scratch Workspace")
scratchWK = arcpy.env.scratchWorkspace
# -----------------------------------------------
# Scratch Workspace is defined by user or default is set
if scratchWK is not None:
# dictionary of system environmental variables
envVariables = os.environ
# get the root system drive
if envVariables.has_key('SYSTEMDRIVE'):
sysDrive = envVariables['SYSTEMDRIVE']
else:
sysDrive = None
varsToSearch = ['ESRI_OS_DATADIR_LOCAL_DONOTUSE','ESRI_OS_DIR_DONOTUSE','ESRI_OS_DATADIR_MYDOCUMENTS_DONOTUSE',
'ESRI_OS_DATADIR_ROAMING_DONOTUSE','TEMP','LOCALAPPDATA','PROGRAMW6432','COMMONPROGRAMFILES','APPDATA',
'USERPROFILE','PUBLIC','SYSTEMROOT','PROGRAMFILES','COMMONPROGRAMFILES(X86)','ALLUSERSPROFILE']
""" This is a printout of my system environmmental variables - Windows 7
-----------------------------------------------------------------------------------------
ESRI_OS_DATADIR_LOCAL_DONOTUSE C:\Users\adolfo.diaz\AppData\Local\
ESRI_OS_DIR_DONOTUSE C:\Users\ADOLFO~1.DIA\AppData\Local\Temp\6\arc3765\
ESRI_OS_DATADIR_MYDOCUMENTS_DONOTUSE C:\Users\adolfo.diaz\Documents\
ESRI_OS_DATADIR_COMMON_DONOTUSE C:\ProgramData\
ESRI_OS_DATADIR_ROAMING_DONOTUSE C:\Users\adolfo.diaz\AppData\Roaming\
TEMP C:\Users\ADOLFO~1.DIA\AppData\Local\Temp\6\arc3765\
LOCALAPPDATA C:\Users\adolfo.diaz\AppData\Local
PROGRAMW6432 C:\Program Files
COMMONPROGRAMFILES : C:\Program Files (x86)\Common Files
APPDATA C:\Users\adolfo.diaz\AppData\Roaming
USERPROFILE C:\Users\adolfo.diaz
PUBLIC C:\Users\Public
SYSTEMROOT : C:\Windows
PROGRAMFILES : C:\Program Files (x86)
COMMONPROGRAMFILES(X86) : C:\Program Files (x86)\Common Files
ALLUSERSPROFILE : C:\ProgramData
------------------------------------------------------------------------------------------"""
bSetTempWorkSpace = False
""" Iterate through each Environmental variable; If the variable is within the 'varsToSearch' list
list above then check their value against the user-set scratch workspace. If they have anything
in common then switch the workspace to something local """
for var in envVariables:
if not var in varsToSearch:
continue
# make a list from the scratch and environmental paths
varValueList = (envVariables[var].lower()).split(os.sep) # ['C:', 'Users', 'adolfo.diaz', 'AppData', 'Local']
scratchWSList = (scratchWK.lower()).split(os.sep) # [u'C:', u'Users', u'adolfo.diaz', u'Documents', u'ArcGIS', u'Default.gdb', u'']
# remove any blanks items from lists
if '' in varValueList: varValueList.remove('')
if '' in scratchWSList: scratchWSList.remove('')
# First element is the drive letter; remove it if they are
# the same otherwise review the next variable.
if varValueList[0] == scratchWSList[0]:
scratchWSList.remove(scratchWSList[0])
varValueList.remove(varValueList[0])
# obtain a similarity ratio between the 2 lists above
#sM = SequenceMatcher(None,varValueList,scratchWSList)
# Compare the values of 2 lists; order is significant
common = [i for i, j in zip(varValueList, scratchWSList) if i == j]
if len(common) > 0:
bSetTempWorkSpace = True
break
# The current scratch workspace shares 1 or more directory paths with the
# system env variables. Create a temp folder at root
if bSetTempWorkSpace:
AddMsgAndPrint("\tCurrent Workspace: " + scratchWK,0)
if sysDrive:
tempFolder = sysDrive + os.sep + "TEMP"
if not os.path.exists(tempFolder):
os.makedirs(tempFolder,mode=777)
arcpy.env.scratchWorkspace = tempFolder
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
packageWS = [f for f in arcpy.ListEnvironments() if f=='packageWorkspace']
if arcpy.env[packageWS[0]]:
arcpy.env.scratchWorkspace = arcpy.env[packageWS[0]]
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
AddMsgAndPrint("\tCould not set any scratch workspace",2)
return False
# user-set workspace does not violate system paths; Check for read/write
# permissions; if write permissions are denied then set workspace to TEMP folder
else:
arcpy.env.scratchWorkspace = scratchWK
if arcpy.env.scratchGDB == None:
AddMsgAndPrint("\tCurrent scratch workspace: " + scratchWK + " is READ only!",0)
if sysDrive:
tempFolder = sysDrive + os.sep + "TEMP"
if not os.path.exists(tempFolder):
os.makedirs(tempFolder,mode=777)
arcpy.env.scratchWorkspace = tempFolder
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
packageWS = [f for f in arcpy.ListEnvironments() if f=='packageWorkspace']
if arcpy.env[packageWS[0]]:
arcpy.env.scratchWorkspace = arcpy.env[packageWS[0]]
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
AddMsgAndPrint("\tCould not set any scratch workspace",2)
return False
else:
AddMsgAndPrint("\tUser-defined scratch workspace is set to: " + arcpy.env.scratchGDB,0)
# No workspace set (Very odd that it would go in here unless running directly from python)
else:
AddMsgAndPrint("\tNo user-defined scratch workspace ",0)
sysDrive = os.environ['SYSTEMDRIVE']
if sysDrive:
tempFolder = sysDrive + os.sep + "TEMP"
if not os.path.exists(tempFolder):
os.makedirs(tempFolder,mode=777)
arcpy.env.scratchWorkspace = tempFolder
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
packageWS = [f for f in arcpy.ListEnvironments() if f=='packageWorkspace']
if arcpy.env[packageWS[0]]:
arcpy.env.scratchWorkspace = arcpy.env[packageWS[0]]
AddMsgAndPrint("\tTemporarily setting scratch workspace to: " + arcpy.env.scratchGDB,1)
else:
return False
arcpy.Compact_management(arcpy.env.scratchGDB)
return arcpy.env.scratchGDB
except:
# All Failed; set workspace to packageWorkspace environment
try:
packageWS = [f for f in arcpy.ListEnvironments() if f=='packageWorkspace']
if arcpy.env[packageWS[0]]:
arcpy.env.scratchWorkspace = arcpy.env[packageWS[0]]
arcpy.Compact_management(arcpy.env.scratchGDB)
return arcpy.env.scratchGDB
else:
AddMsgAndPrint("\tCould not set scratchWorkspace. Not even to default!",2)
return False
except:
errorMsg()
return False
## ================================================================================================================
def tic():
""" Returns the current time """
return time.time()
## ================================================================================================================
def toc(_start_time):
""" Returns the total time by subtracting the start time - finish time"""
try:
t_sec = round(time.time() - _start_time)
(t_min, t_sec) = divmod(t_sec,60)
(t_hour,t_min) = divmod(t_min,60)
if t_hour:
return ('{} hour(s): {} minute(s): {} second(s)'.format(int(t_hour),int(t_min),int(t_sec)))
elif t_min:
return ('{} minute(s): {} second(s)'.format(int(t_min),int(t_sec)))
else:
return ('{} second(s)'.format(int(t_sec)))
except:
errorMsg()
## ================================================================================================================
def splitThousands(someNumber):
""" will determine where to put a thousands seperator if one is needed.
Input is an integer. Integer with or without thousands seperator is returned."""
try:
return re.sub(r'(\d{3})(?=\d)', r'\1,', str(someNumber)[::-1])[::-1]
except:
errorMsg()
return someNumber
## ================================================================================================================
def getBoundingCoordinates(feature):
""" This function will return WGS coordinates in Lat-Long format that will be passed over to
the 'WEB_EXPORT_PEDON_BOX_COUNT' report. The coordinates are generated by creating
a minimum bounding box around the input features. The box is then converted to vertices
and the SW Ycoord, NE Ycoord, SW Xcoord and NE Ycoord are return in that order.
Geo-Processing Environments are set to WGS84 in order to return coords in Lat/Long."""
try:
""" Determine if features are a subset of selected polygons OR the entire dataset
is being used. This was necessary b/c the output Coordinate System
environmental variable was not being honored if a selected set is being used.
Export selected set to a temporary feature class otherwise continue"""
arcpy.SetProgressorLabel("Calculating bounding coordinates of input features")
featurePath = arcpy.Describe(feature).catalogPath
totalPolys = int(arcpy.GetCount_management(featurePath).getOutput(0))
selectedPolys = int(arcpy.GetCount_management(feature).getOutput(0))
bExport = False
if selectedPolys < totalPolys:
envelopeFeature = arcpy.CreateScratchName("envelopeFeature",data_type="FeatureClass", workspace=scratchWS)
arcpy.CopyFeatures_management(feature,envelopeFeature)
AddMsgAndPrint("\nCalculating bounding coordinates for " + splitThousands(selectedPolys) + " feature(s)",0)
bExport = True
else:
envelopeFeature = feature
AddMsgAndPrint("\nCalculating bounding coordinates of input features",0)
""" Set Projection and Geographic Transformation environments in order
to post process everything in WGS84. This will force all coordinates
to be in Lat/Long"""
inputSR = arcpy.Describe(feature).spatialReference # Get Spatial Reference of input features
inputDatum = inputSR.GCS.datumName # Get Datum name of input features
if inputSR == "Unkown":
AddMsgAndPrint("\n\tInput layer needs a spatial reference defined to determine bounding envelope",2)
return False
if inputDatum == "D_North_American_1983":
arcpy.env.geographicTransformations = "WGS_1984_(ITRF00)_To_NAD_1983"
elif inputDatum == "D_North_American_1927":
arcpy.env.geographicTransformations = "WGS_1984_(ITRF00)_To_NAD_1927"
elif inputDatum == "D_WGS_1984":
arcpy.env.geographicTransformations = ""
else:
AddMsgAndPrint("\n\tGeo Transformation of Datum could not be set",2)
return False
# Factory code for WGS84 Coordinate System
arcpy.env.outputCoordinateSystem = arcpy.SpatialReference(4326)
""" ------------ Create Minimum Bounding Envelope of features ------------"""
envelope = arcpy.CreateScratchName("envelope",data_type="FeatureClass",workspace=scratchWS)
envelopePts = arcpy.CreateScratchName("envelopePts",data_type="FeatureClass",workspace=scratchWS)
# create minimum bounding geometry enclosing all features
arcpy.MinimumBoundingGeometry_management(envelopeFeature,envelope,"ENVELOPE","ALL","#","MBG_FIELDS")
if int(arcpy.GetCount_management(envelope).getOutput(0)) < 1:
AddMsgAndPrint("\n\tFailed to create minimum bounding area. \n\tArea of interest is potentially too small",2)
return False
arcpy.FeatureVerticesToPoints_management(envelope, envelopePts, "ALL")
""" ------------ Get X and Y coordinates from envelope ------------"""
coordList = []
with arcpy.da.SearchCursor(envelopePts,['SHAPE@XY']) as cursor:
for row in cursor:
if abs(row[0][0]) > 0 and abs(row[0][1]) > 0:
# Don't add duplicate coords; Last coord will also be the starting coord
if not row[0] in coordList:
coordList.append(row[0])
# Reset output Coord Sys Environment
arcpy.env.outputCoordinateSystem = ""
# Delete temp spatial files
for tempFile in [envelope,envelopePts]:
if arcpy.Exists(tempFile):
arcpy.Delete_management(tempFile)
if bExport:
arcpy.Delete_management(envelopeFeature)
if len(coordList) == 4:
AddMsgAndPrint("\tBounding Box Coordinates:")
AddMsgAndPrint("\t\tSouth Latitude: " + str(coordList[0][1]))
AddMsgAndPrint("\t\tNorth Latitude: " + str(coordList[2][1]))
AddMsgAndPrint("\t\tEast Longitude: " + str(coordList[0][0]))
AddMsgAndPrint("\t\tWest Longitude: " + str(coordList[2][0]))
return coordList[0][1],coordList[2][1],coordList[0][0],coordList[2][0]
else:
AddMsgAndPrint("\tCould not get Latitude-Longitude coordinates from bounding area",2)
return False
except:
for tempFile in [envelope,envelopePts]:
if arcpy.Exists(tempFile):
arcpy.Delete_management(tempFile)
errorMsg()
return False
## ================================================================================================================
def getWebPedonNumberSum(coordinates):
""" This function will send the bounding coordinates to the 'Web Export Pedon Box' NASIS report
and return a list of pedons within the bounding coordinates. Pedons include regular
NASIS pedons and LAB pedons. Each record in the report will contain the following values:"""
try:
AddMsgAndPrint("\nDetermining if there are any pedons within the bounding coordinates")
arcpy.SetProgressorLabel("Determining if there are any pedons within the bounding coordinates")
# Open a network object using the URL with the search string already concatenated
URL = r'https://nasis.sc.egov.usda.gov/NasisReportsWebSite/limsreport.aspx?report_name=WEB_ANALYSIS_PC_PEDON_NUMBER_SUM' + coordinates
""" -------------------------------------- Try connecting to NASIS to read the report ------------------------"""
try:
theReport = urlopen(URL).readlines()
except:
try:
AddMsgAndPrint("\t2nd attempt at requesting data")
theReport = urlopen(URL).readlines()
except:
try:
AddMsgAndPrint("\t3rd attempt at requesting data")
theReport = urlopen(URL).readlines()
except URLError, e:
if hasattr(e, 'reason'):
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tURL Error: " + str(e.reason), 2)
elif hasattr(e, 'code'):
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\t" + e.msg + " (errorcode " + str(e.code) + ")", 2)
return False
except socket.timeout, e:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tServer Timeout Error", 2)
return False
except socket.error, e:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tNASIS Reports Website connection failure", 2)
return False
except httplib.BadStatusLine:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tNASIS Reports Website connection failure", 2)
return False
except:
errorMsg()
return False
""" -------------------------------------- Read the NASIS report ---------------------------------"""
bValidRecord = False # boolean that marks the starting point of the mapunits listed in the project
# iterate through the report until a valid record is found
for theValue in theReport:
theValue = theValue.strip() # removes whitespace characters
# Iterating through the lines in the report
if bValidRecord:
if theValue == "STOP": # written as part of the report; end of lines
break
else:
try:
return int(theValue)
except:
continue
else:
if theValue.startswith('<div id="ReportData">START'):
bValidRecord = True
except:
errorMsg()
return False
## ================================================================================================================
def getWebExportPedon(coordinates):
""" This function will send the bounding coordinates to the 'Web Export Pedon Box' NASIS report
and return a list of pedons within the bounding coordinates. Pedons include regular
NASIS pedons and LAB pedons. Each record in the report will contain the following values:
Row_Number,upedonid,peiid,pedlabsampnum,Longstddecimaldegrees,latstddecimaldegrees,Undisclosed Pedon
24|S1994MN161001|102861|94P0697|-93.5380936|44.0612717|'Y'
A dictionary will be returned containing something similar:
{'102857': ('S1954MN161113A', '40A1694', '-93.6499481', '43.8647194','Y'),
'102858': ('S1954MN161113B', '40A1695', '-93.6455002', '43.8899956','N')}
theURL = r' #getPedonIDURL = r'https://nasis.sc.egov.usda.gov/NasisReportsWebSite/limsreport.aspx?report_name=WEB_EXPORT_PEDON_BOX_COUNT&Lat1=44.070820&Lat2=44.596950&Long1=-91.166274&Long2=-90.311911'"""
try:
AddMsgAndPrint("\nRequesting a list of pedonIDs from NASIS using the above bounding coordinates")
arcpy.SetProgressorLabel("Requesting a list of pedons from NASIS")
URL = r'https://nasis.sc.egov.usda.gov/NasisReportsWebSite/limsreport.aspx?report_name=WEB_EXPORT_PEDON_BOX_COUNT' + coordinates
# Open a network object using the URL with the search string already concatenated
startTime = tic()
#AddMsgAndPrint("\tNetwork Request Time: " + toc(startTime))
""" -------------------------------------- Try connecting to NASIS to read the report ------------------------"""
try:
theReport = urlopen(URL).readlines()
except:
try:
AddMsgAndPrint("\t2nd attempt at requesting data")
theReport = urlopen(URL).readlines()
except:
try:
AddMsgAndPrint("\t3rd attempt at requesting data")
theReport = urlopen(URL).readlines()
except URLError, e:
if hasattr(e, 'reason'):
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tURL Error: " + str(e.reason), 2)
elif hasattr(e, 'code'):
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\t" + e.msg + " (errorcode " + str(e.code) + ")", 2)
return False
except socket.timeout, e:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tServer Timeout Error", 2)
return False
except socket.error, e:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tNASIS Reports Website connection failure", 2)
return False
except httplib.BadStatusLine:
AddMsgAndPrint("\n\t" + URL)
AddMsgAndPrint("\tNASIS Reports Website connection failure", 2)
return False
""" -------------------------------------- Read the NASIS report ------------------------------------"""
totalPedonCnt = 0
labPedonCnt = 0
undisclosed = 0
bValidRecord = False # boolean that marks the starting point of the mapunits listed in the project
arcpy.SetProgressor("step", "Reading NASIS Report: 'WEB_EXPORT_PEDON_BOX_COUNT'", 0, len(theReport), 1)
# iterate through the report until a valid record is found
for theValue in theReport:
theValue = theValue.strip() # removes whitespace characters
# Iterating through the lines in the report
if bValidRecord:
if theValue == "STOP": # written as part of the report; end of lines
break
# Found a valid project record i.e. -- SDJR - MLRA 103 - Kingston silty clay loam, 1 to 3 percent slopes|400036
else:
theRec = theValue.split("|")
if len(theRec) != 7:
AddMsgAndPrint("\tNASIS Report: Web Export Pedon Box is not returning the correct amount of values per record",2)
return False
# Undisclosed Record; Reject this record
if theRec[6] == "Y":
undisclosed+=1
totalPedonCnt += 1
continue
rowNumber = theRec[0]
userPedonID = theRec[1]
pedonID = theRec[2]
longDD = theRec[4]
latDD = theRec[5]
# Lab sample or not
if theRec[3] == 'Null' or theRec[3] == '':
labSampleNum = None
else:
labSampleNum = theRec[3]
labPedonCnt += 1
if not pedonDict.has_key(pedonID):
pedonDict[pedonID] = (userPedonID,labSampleNum,longDD,latDD)
totalPedonCnt += 1
else:
if theValue.startswith('<div id="ReportData">START'):
bValidRecord = True
arcpy.SetProgressorPosition()
#Resets the progressor back to its initial state
arcpy.ResetProgressor()
if len(pedonDict) == 0:
AddMsgAndPrint("\tThere were no pedons found in this area; Try using a larger extent",1)
return False
else:
#AddMsgAndPrint("\tThere are a total of " + splitThousands(totalPedonCnt) + " pedons found in this area:")
AddMsgAndPrint("\tThere are " + splitThousands(totalPedonCnt) + " within this layer:")
AddMsgAndPrint("\t\tLAB Pedons: " + splitThousands(labPedonCnt))
AddMsgAndPrint("\t\tUndisclosed: " + splitThousands(undisclosed))
AddMsgAndPrint("\t\tNASIS Pedons: " + splitThousands((totalPedonCnt - labPedonCnt) - undisclosed))
return True
except:
errorMsg()
return False
## ================================================================================================================
def filterPedonsByFeature(feature):
""" This function will temporarily plot out the pedons in order to determine which pedons fall completely
within the user's AOI. Once determined, the extra pedons will be removed from the pedonDict"""
try:
AddMsgAndPrint("\nSelecting pedons that intersect with " + arcpy.Describe(feature).Name + " Layer",0)
arcpy.SetProgressorLabel("Selecting pedons that intersect with " + arcpy.Describe(feature).Name + " Layer")
#arcpy.env.outputCoordinateSystem = arcpy.SpatialReference(4326)
# Make a copy of the user-input features - this is just in case there is a selected set
aoiFeature = arcpy.CreateScratchName("aoiFeature",data_type="FeatureClass", workspace=scratchWS)
arcpy.CopyFeatures_management(feature,aoiFeature)
# Create a temp point feature class to digitize ALL of the pedons within the bounding box first
tempPoints = arcpy.CreateScratchName("tempPoints",data_type="FeatureClass", workspace=scratchWS)
# Factory code for WGS84 Coordinate System
spatial_reference = arcpy.SpatialReference(4326)
#spatial_reference = arcpy.Describe(feature).spatialReference
arcpy.CreateFeatureclass_management(scratchWS, os.path.basename(tempPoints), "POINT", "#", "DISABLED", "DISABLED", spatial_reference)
peiidFld = "peiid"
arcpy.AddField_management(tempPoints,peiidFld,"LONG")
# Initiate the insert cursor object using the peiid and XY values
cursor = arcpy.da.InsertCursor(tempPoints,[peiidFld,'SHAPE@XY'])
for pedon in pedonDict:
xValue = float(pedonDict[pedon][2])
yValue = float(pedonDict[pedon][3])
newRow = [pedon,(xValue,yValue)]
cursor.insertRow(newRow)
del cursor
tempPointsPRJ = arcpy.CreateScratchName("tempPointsPRJ",data_type="FeatureClass", workspace=scratchWS)
arcpy.Project_management(tempPoints,tempPointsPRJ,arcpy.Describe(feature).spatialReference)
arcpy.SetProgressorLabel("Selecting pedons that intersect with " + arcpy.Describe(feature).Name + " Layer") # Some odd reason 'tempPointsPRJ' stays frozen in the progress bar.
# Select all of the pedons within the user's AOI
tempPointsLYR = arcpy.CreateScratchName("tempPointsLYR",data_type="FeatureClass", workspace=scratchWS)
arcpy.MakeFeatureLayer_management(tempPointsPRJ,tempPointsLYR)
#AddMsgAndPrint("\tThere are " + str(int(arcpy.GetCount_management("tempPoints_LYR").getOutput(0))) + " pedons in the layer",2)
arcpy.SelectLayerByLocation_management(tempPointsLYR,"INTERSECT",aoiFeature, "","NEW_SELECTION")
pedonsWithinAOI = int(arcpy.GetCount_management(tempPointsLYR).getOutput(0))
# There are pedons within the user's AOI
if pedonsWithinAOI > 0:
AddMsgAndPrint("\tThere are " + splitThousands(pedonsWithinAOI) + " pedons within this layer",0)
# Make a copy of the user-input features - this is just in case there is a selected set
selectedPedons = arcpy.CreateScratchName("selectedPedons",data_type="FeatureClass", workspace=scratchWS)
arcpy.CopyFeatures_management(tempPointsLYR,selectedPedons)
# Create a new list of pedonIDs from the selected set; pedonIDs are converted to strings in order
# to compare against the pedonDict()
selectedPedonsList = [str(row[0]) for row in arcpy.da.SearchCursor(selectedPedons, (peiidFld))]
# Make a copy of pedonDict b/c it cannot change during iteration
pedonDictCopy = pedonDict.copy()
# delete any pedon from the original pedonDict that is not in the selected set.
labPedonCnt = 0
for pedon in pedonDictCopy:
if pedon not in selectedPedonsList:
del pedonDict[pedon]
else:
if not pedonDict[pedon][1] is None:
labPedonCnt+=1
AddMsgAndPrint("\t\tLAB Pedons: " + splitThousands(labPedonCnt))
AddMsgAndPrint("\t\tNASIS Pedons: " + splitThousands(pedonsWithinAOI - labPedonCnt))
for layer in (aoiFeature,tempPoints,tempPointsPRJ,tempPointsLYR,selectedPedons):
if arcpy.Exists(layer):
arcpy.Delete_management(layer)
del pedonDictCopy,selectedPedons,selectedPedonsList
return pedonsWithinAOI
else:
AddMsgAndPrint("\tThere are NO pedons that are completely within your AOI. EXITING! \n",2)
exit()
except arcpy.ExecuteError:
AddMsgAndPrint(arcpy.GetMessages(2),2)
return False
except:
AddMsgAndPrint("Unhandled exception (filterPedonsByFeature). EXITING!", 2)
errorMsg()
return False
## ================================================================================================================
def createPedonFGDB():
"""This Function will create a new File Geodatabase using a pre-established XML workspace
schema. All Tables will be empty and should correspond to that of the access database.
Relationships will also be pre-established.
Return false if XML workspace document is missing OR an existing FGDB with the user-defined
name already exists and cannot be deleted OR an unhandled error is encountered.
Return the path to the new Pedon File Geodatabase if everything executes correctly."""
try:
AddMsgAndPrint("\nCreating New Pedon File Geodatabase",0)
arcpy.SetProgressorLabel("Creating New Pedon File Geodatabase")
# pedon xml template that contains empty pedon Tables and relationships
# schema and will be copied over to the output location
pedonXML = os.path.dirname(sys.argv[0]) + os.sep + "Extract_Pedons_from_NASIS_XMLWorkspace.xml"
localPedonGDB = os.path.dirname(sys.argv[0]) + os.sep + "NasisPedonsTemplate.gdb"
# Return false if pedon fGDB template is not found
if not arcpy.Exists(localPedonGDB):
AddMsgAndPrint("\t" + os.path.basename(localPedonGDB) + " FGDB template was not found!",2)
return False
newPedonFGDB = os.path.join(outputFolder,GDBname + ".gdb")
if arcpy.Exists(newPedonFGDB):
try:
arcpy.Delete_management(newPedonFGDB)
AddMsgAndPrint("\t" + GDBname + ".gdb already exists. Deleting and re-creating FGDB\n",1)
except:
AddMsgAndPrint("\t" + GDBname + ".gdb already exists. Failed to delete\n",2)
return False
# copy template over to new location
AddMsgAndPrint("\tCreating " + GDBname + ".gdb with NCSS Pedon Schema 7.3")
arcpy.Copy_management(localPedonGDB,newPedonFGDB)
""" ------------------------------ Code to use XML Workspace -------------------------------------------"""
## # Return false if xml file is not found
## if not arcpy.Exists(pedonXML):
## AddMsgAndPrint("\t" + os.path.basename(pedonXML) + " Workspace document was not found!",2)
## return False
##
## # Create empty temp File Geodatabae
## arcpy.CreateFileGDB_management(outputFolder,os.path.splitext(os.path.basename(newPedonFGDB))[0])
##
## # set the pedon schema on the newly created temp Pedon FGDB
## AddMsgAndPrint("\tImporting NCSS Pedon Schema 7.3 into " + GDBname + ".gdb")
## arcpy.ImportXMLWorkspaceDocument_management(newPedonFGDB, pedonXML, "DATA", "DEFAULTS")
arcpy.UncompressFileGeodatabaseData_management(newPedonFGDB)
arcpy.RefreshCatalog(outputFolder)
AddMsgAndPrint("\tSuccessfully created: " + GDBname + ".gdb")
return newPedonFGDB
except arcpy.ExecuteError:
AddMsgAndPrint(arcpy.GetMessages(2),2)
return False
except:
AddMsgAndPrint("Unhandled exception (createFGDB)", 2)
errorMsg()
return False
## ===============================================================================================================
def getTableAliases(pedonFGDBloc):
# Retrieve physical and alias names from MDSTATTABS table and assigns them to a blank dictionary.
# Stores physical names (key) and aliases (value) in a Python dictionary i.e. {chasshto:'Horizon AASHTO,chaashto'}
# Fieldnames are Physical Name = AliasName,IEfilename
try:
arcpy.SetProgressorLabel("Gathering Table and Field aliases")
# Open Metadata table containing information for other pedon tables
theMDTable = pedonFGDBloc + os.sep + "MetadataTable"
arcpy.env.workspace = pedonFGDBloc
# Establishes a cursor for searching through field rows. A search cursor can be used to retrieve rows.
# This method will return an enumeration object that will, in turn, hand out row objects
if not arcpy.Exists(theMDTable):
return False
tableList = arcpy.ListTables("*")
tableList.append("pedon")
nameOfFields = ["TablePhysicalName","TableLabel"]
for table in tableList:
# Skip any Metadata files
if table.find('Metadata') > -1: continue
expression = arcpy.AddFieldDelimiters(theMDTable,"TablePhysicalName") + " = '" + table + "'"
with arcpy.da.SearchCursor(theMDTable,nameOfFields, where_clause = expression) as cursor:
for row in cursor:
# read each table record and assign 'TablePhysicalName' and 'TableLabel' to 2 variables
physicalName = row[0]
aliasName = row[1]
# i.e. {phtexture:'Pedon Horizon Texture',phtexture}; will create a one-to-many dictionary
# As long as the physical name doesn't exist in dict() add physical name
# as Key and alias as Value.
if not tblAliases.has_key(physicalName):
tblAliases[physicalName] = aliasName
del physicalName,aliasName
del theMDTable,tableList,nameOfFields
return True
except arcpy.ExecuteError:
AddMsgAndPrint(arcpy.GetMessages(2),2)
return False
except:
AddMsgAndPrint("Unhandled exception (GetTableAliases)", 2)
errorMsg()
return False
## ===============================================================================================================
def createEmptyDictOfTables():
# Create a new dictionary called pedonGDBtables that will contain every table in the newly created
# pedonFGDB above as a key. Individual records of tables will be added as values to the table keys.
# These values will be in the form of lists. This dictionary will be populated using the results of
# the WEB_AnalysisPC_MAIN_URL_EXPORT NASIS report. Much faster than opening and closing cursors.
try:
arcpy.env.workspace = pedonFGDB
tables = arcpy.ListTables()
tables.append(arcpy.ListFeatureClasses('pedon','Point')[0]) ## pedon is a feature class and gets excluded by the ListTables function
# Create dictionary where keys will be tables and values will be later populated
# {'area': [],'areatype': [],'basalareatreescounted': [],'beltdata': [],'belttransectsummary': []........}
pedonGDBtablesDict = dict()
for table in tables:
# Skip any Metadata files
if table.find('Metadata') > -1: continue
pedonGDBtablesDict[str(table)] = []
del tables
return pedonGDBtablesDict
except:
AddMsgAndPrint("\nUnhandled exception (GetTableAliases)\n", 2)
errorMsg()
exit()
## ===============================================================================================================
def parsePedonsIntoLists():
""" This function will parse pedons into manageable chunks that will be sent to the 2nd URL report.
There is an inherent URL character limit of 2,083. The report URL is 123 characters long which leaves 1,960 characters
available. I arbitrarily chose to have a max URL of 1,860 characters long to avoid problems. Most pedonIDs are about
6 characters. This would mean an average max request of 265 pedons at a time.
This function returns a list of pedon lists"""
#1860 = 265
try:
arcpy.SetProgressorLabel("Determining the number of requests to send the server")
# Total Count
i = 1
listOfPedonStrings = list() # List containing pedonIDstring lists; individual lists are comprised of about 265 pedons
pedonIDstr = ""
for pedonID in pedonDict:
# End of pedon list has been reached
if i == len(pedonDict):
pedonIDstr = pedonIDstr + str(pedonID)
listOfPedonStrings.append(pedonIDstr)
# End of pedon list NOT reached
else:
# Max URL length reached - retrieve pedon data and start over
if len(pedonIDstr) > 1860:
pedonIDstr = pedonIDstr + str(pedonID)
listOfPedonStrings.append(pedonIDstr)
## reset the pedon ID string to empty
pedonIDstr = ""
i+=1
# concatenate pedonID to string and continue
else:
pedonIDstr = pedonIDstr + str(pedonID) + ",";i+=1
numOfPedonStrings = len(listOfPedonStrings) # Number of unique requests that will be sent
if not numOfPedonStrings:
AddMsgAndPrint("\n\t Something Happened here.....WTF!",2)
exit()
else:
return listOfPedonStrings,numOfPedonStrings
except:
AddMsgAndPrint("Unhandled exception (createFGDB)", 2)
errorMsg()
exit()
## ================================================================================================================
def getPedonHorizon(pedonList):
# Here is an example of the output report
"""<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
</title><link href="basepage.css" rel="stylesheet" type="text/css" />
<title></title>
</head>
<body>
<form name="aspnetForm" method="post" action="./limsreport.aspx?report_name=WEB_AnalysisPC_MAIN_URL_EXPORT&pedonid_list=36186" id="aspnetForm">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKLTM2NDk4NDg3MA9kFgJmD2QWAgIDD2QWAgIBD2QWAgIDDw8WAh4HVmlzaWJsZWdkZGTGpOLNcjJy57o09/vgOTuu/3Y32k0Fja4e1d5/Fegb1w==" />
</div>
<div>
<input type="hidden" name="__VIEWSTATEGENERATOR" id="__VIEWSTATEGENERATOR" value="DCF944DC" />
</div>
<div>
<div id="ctl00_ContentPlaceHolder1_pnlReportOutput">
<div id="ReportData">@begin ncsspedonlabdata
pedlabsampnum|peiidref|psctopdepth|psctopdepth_s|pscbotdepth|pscbotdepth_s|noncarbclaywtavg|claytotwtavg|le0to100|wf0175wtavgpsc|volfractgt2wtavg|cec7clayratiowtavg|labdatasheeturl|ncsspedbiidref|grpiidref|objwlupdated|objuseriidref|recwlupdated|recuseriidref|ncsspedonlabdataiid
@end
@begin ncsslayerlabdata
ncsspedonlabdataiidref|layerseqnum|labsampnum|hzdept|hzdepb|layertype|hzname|hznameoriginal|stratextsflag|moistprepstate|texcl|sandvcmeasured|sandcomeasured|sandmedmeasured|sandfinemeasured|sandvfmeasured|sandtotmeasured|siltcomeasured|siltfinemeasured|silttotmeasured|claycarbmeasured|clayfinemeasured|claytotmeasured|carbonorganicpctmeasured|carbontotalpctmeasured|ompctest|fiberrubbedpct|fiberunrubbedpct|fragwt25|fragwt520|fragwt2075|fragwt275|wtpct0175|wtpctgt2ws|ph1to1h2o|ph01mcacl2|phnaf|phoxidized|resistivity|ecmeasured|esp|sar|cecsumcations|cec7|ecec|sumbases|basesatsumcations|basesatnh4oac|caco3equivmeasured|caco3lt20measured|gypsumequivlt2measured|gypsumequivmeasured|feoxalatemeasured|feextractable|fetotal|sioxalatemeasured|extracid|extral|aloxalatemeasured|altotal|pmehlich3|ph2osolublemeasured|poxalatemeasured|polsenmeasured|ptotalmeasured|nzpretention|dbthirdbar|dbovendry|aggstabpct|wtenthbarclod|wtenthbarsieve|wthirdbarclod|wthirdbarsieve|wfifteenbarmeasured|wretentiondiffws|wfifteenbartoclay|adod|lep|cole|liquidlimitmeasured|pi|recwlupdated|recuseriidref|ncsslayerlabdataiid
@end
@begin site
usiteid|latdegrees|latminutes|latseconds|latdir|longdegrees|longminutes|longseconds|longdir|horizdatnm|locdesc|plsssdetails|plsssection|plsstownship|plssrange|plssmeridian|utmzone|utmnorthing|utmeasting|geocoordsource|elev|geomposhill|geomposmntn|geompostrce|geomposflats|hillslopeprof|geomslopeseg|slope|aspect|slopelenusle|slopelenuptro|shapeacross|shapedown|slopecomplex|locphysnm|siteksatclassupper|siteksatclasslower|drainagecl|runoff|drainagepattern|pmgroupname|pmgroupname_s|climstaid|climstanm|climstatype|ffd|map|reannualprecip|airtempa|soiltempa|airtemps|soiltemps|airtempw|soiltempw|benchmarksoilflag|flodfreqcl|floddurcl|flodmonthbeg|pondfreqcl|ponddurcl|pondmonthbeg|wtabledur|latstddecimaldegrees|longstddecimaldegrees|gpspositionalerror|gpspdop|elevcorrected|sdbiidref|siteiid
94IL111028|42|18|45.00|North|88|13|43.00|West|North American Datum of 1927|500 feet south and 2,600 feet east of the northwest corner of sec. 7, T. 44 N., R. 9 E.||||||||||229.0|Side Slope||||Backslope||27.0|270|||Linear|Linear|||||Excessively drained|Very high||||||||||||||||0||||||||42.3125106|-88.2286481||||139|36242
@end
@begin siteobs
seqnum|obsdate|obsdatekind|datacollector|photoid|swaterkind|swaterdepth|hydrologystatus|geomicrorelief|geommicelev|geommicpat|ecostateid|ecostatename|commphaseid|commphasename|plantassocnm|earthcovkind1|earthcovkind2|resourceretentionclass|bareareamaxwidth|pedodermclass|pedodermcovind|biolcrusttypedom|biolcrusttypesecond|physcrustsubtype|crustdevcl|soilredistributionclass|exposedsoilpct|localdisturbancedistance|localdisturbancedescription|drainedflag|beddingflag|plantationflag|forestrotationstage|yldstudyid|currweathcond|currairtemp|tidalperiod|bottomtype|saswatertempupper|saswatertemplower|saswaterphupper|saswaterphlower|phdetermeth|sasdissolvedoxyupper|sasdissolvedoxylower|saswatersalinityupper|saswatersalinitylower|siteiidref|siteobsiid
|10/14/1994 12:00:00 AM|Actual Site Observation Date||BXA-2-41|||||||||||||||||0|||||||||0|0|0||||||||||||||||36242|36165
@end
@begin siteerosionacc
seqnum|erokind|siteobsiidref|siteeroacciid
|Water erosion|36165|4703
@end
@begin sitegeomordesc
seqnum|geomfiidref|geomfmod|geomfeatid|existsonfeat|siteiidref|sitegeomdiid
|70||||36242|52245
@end
@begin siteobstext
seqnum|recdate|recauthor|siteobstextkind|textcat|textsubcat|textentry|siteobsiidref|siteobstextiid
@end
@begin siteaoverlap
seqnum|areaiidref|siteiidref|sareaoviid|areaname|areasymbol|areatypename
|643|36242|1050900|La Salle County, Illinois|IL099|Non-MLRA Soil Survey Area
|649|36242|1050901|McHenry County, Illinois|IL111|Non-MLRA Soil Survey Area
|68910|36242|1050899|United States|US|Country
@end
@begin sitemuoverlap
siteiidref|seqnum|lmapunitiidref|recwlupdated|recuseriidref|smuoviid
36242||2108706|9/22/2011 12:54:23 PM|1099|124012
@end
@begin sitepm
seqnum|pmorder|pmdept|pmdepb|pmmodifier|pmgenmod|pmkind|pmorigin|pmweathering|siteiidref|sitepmiid
@end
@begin sitesoilmoist
seqnum|soimoistdept|soimoistdepb|soilmoistsensordepth|soilmoistsensorkind|obssoimoiststat|obssoimoist|obsgrsoimoist|soimoistten|siteobsiidref|sitesmiid
@end
@begin sitesoiltemp
seqnum|soitempdep|soiltempsensorkind|soitemp|siteobsiidref|sitestiid
@end
@begin sitetext
seqnum|recdate|recauthor|sitetextkind|textcat|textsubcat|textentry|siteiidref|sitetextiid
@end
@begin transect
utransectid|tsectauth|tsectkind|tsectselmeth|tsectdelinsize|tsectdir|tsectcertstatus|tsectdbiidref|tsectiid
@end
@begin transecttext
seqnum|recdate|recauthor|transecttextkind|textcat|textsubcat|textentry|tsectiidref|transecttextiid
@end
@begin pediagfeatures
peiidref|seqnum|featdept|featdepb|featthick_l|featthick_r|featthick_h|featkind|recwlupdated|recuseriidref|pediagfeatiid
@end
@begin pefmp
peiidref|seqnum|fmpname|fmpvalue|fmpunits|recwlupdated|recuseriidref|pefmpiid
@end
@begin pedon
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