I tried to make masked raster.
At first, making mask raster, and then SetNull for input raster.It's very common process.
All processes is well ,but NoData setting differs according to file format in raster save method....
I've checked following two format.
# -*- coding: utf-8 -*-
# Import arcpy module
import arcpy
import sys
import os
class LisenceError(Exception):
pass
# Check Spatial Analyst license
try:
if arcpy.CheckExtension("Spatial") == "Available":
arcpy.CheckOutExtension("Spatial")
else:
# raise a custom extension
raise LisenceError
except LisenceError:
print("Spatial Analyst License is unavailable")
arcpy.AddMessage("Spatial Analyst License is unavailable")
def makeCoheMask(coheRas, ccthresh):
try:
coheMask = arcpy.sa.Con(arcpy.Raster(coheRas) < ccthresh, 0, 1)
return coheMask
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
def makeSlopeMask(dem, geoid, angle, heightType, zfactor):
try:
arcpy.env.cellSize = "MINOF"
TMP_SLOPE = arcpy.env.scratchWorkspace + '\\tmp_slope'
arcpy.Slope_3d(dem, TMP_SLOPE, 'DEGREE', zfactor)
return slopeMask
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
def makeLSMask(lsData, type):
try:
outRas = arcpy.sa.Con(arcpy.Raster(lsData) > 1, 0, 1)
return outRas
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
# Set overwrite option
arcpy.env.overwriteOutput = True
# Arguments
inputRas = sys.argv[1]
coheFlg = sys.argv[2]
coheRas = sys.argv[3]
ccthresh = sys.argv[4]
slopeFlg = sys.argv[5]
dem = sys.argv[6]
zfactor = sys.argv[7]
angle = sys.argv[8]
lsFlg = sys.argv[9]
lsData = sys.argv[10]
output = sys.argv[11]
try:
input_Raster = arcpy.Raster(inputRas)
if coheFlg.lower() == 'true':
mask_cohe = makeCoheMask(coheRas, float(ccthresh))
else:
arcpy.AddMessage('NOT applied coherence mask')
mask_cohe = 1
if slopeFlg.lower() == 'true':
mask_slope = makeSlopeMask(dem, geoid, float(angle), heightType, float(zfactor))
else:
arcpy.AddMessage('NOT applied slope mask')
mask_slope = 1
if lsFlg.lower() == 'true':
mask_ls = makeLSMask(lsData, type)
arcpy.AddMessage('finish making LS mask')
else:
arcpy.AddMessage('NOT applied LS mask')
mask_ls = 1
conRas = arcpy.sa.Int(mask_cohe * (mask_slope * mask_ls))
outSetNull = arcpy.sa.SetNull(conRas, input_Raster, "VALUE = 0")
outSetNull.save(output)
if arcpy.Exists(TMP_SLOPE):
arcpy.Delete_management(TMP_SLOPE)
except arcpy.ExecuteError:
print(arcpy.GetMessages(2))
