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XYZtoGRID_FGDB.py
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XYZtoGRID_FGDB.py
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# create.py
# Create, write, or both to folder, personal geodatabase or feature dataset
# Tim Andrews
# April 28, 2010
import sys, string, os, arcgisscripting, glob, re
# Note used 9.3!
gp = arcgisscripting.create(9.3)
# Allow for the overwriting of file geodatabases, if they previously exist
gp.OverWriteOutput = 1
# Turn on history logging so that a history log file is written
gp.LogHistory = True
# Check out any necessary licenses
gp.CheckOutExtension("spatial")
gp.CheckOutExtension("3D")
# Load required toolboxes...
gp.AddToolbox("C:/ArcGIS/ArcToolbox/Toolboxes/Spatial Analyst Tools.tbx")
gp.AddToolbox("C:/ArcGIS/ArcToolbox/Toolboxes/Conversion Tools.tbx")
gp.AddToolbox("C:/ArcGIS/ArcToolbox/Toolboxes/Data Management Tools.tbx")
gp.AddToolbox("C:/ArcGIS/ArcToolbox/Toolboxes/3D Analyst Tools.tbx")
gp.AddToolbox("C:/ArcGIS/ArcToolbox/Toolboxes/Analysis Tools.tbx")
# Local variables...
inFolder = ""
outFolder = ""
inSide = ""
outGrid = ""
inSep = "."
inHeader = "Point"
inFooter = "END"
InCellSize = int(1.00)
InField = "Z"
count = int(0)
# GUI variables
inFolder = gp.GetParameterAsText(0)
outFGDB = gp.GetParameterAsText(1)
inSide = gp.GetParameterAsText(2)
# Some functions don't work without setting a workspace!
# gp.Workspace = inFolder.replace("\\","/")
# if outFGDB == "":
# outFGDB = inFolder
theFiles = glob.glob(inFolder+"/*.txt")
for i in theFiles:
inTXTfull = str(i).replace("\\","/")
inTXT = os.path.split(inTXTfull)[1]
inPath = os.path.split(inTXTfull)[0]
gp.AddMessage("Input Path is: " + inPath)
out_fgdb = str(outFGDB).replace("\\","/")
gp.AddMessage("Output FGDB is: " + out_fgdb)
outPath = out_fgdb + "/"
gp.AddMessage("")
gp.AddMessage("Input Text File is: " + inTXTfull)
noextName = str(inTXT[:-4])
result = re.split("\_", noextName)
# gp.AddMessage("Split on all underscores result is " + str(result))
result2 = re.split("\_", noextName, 1)
# gp.AddMessage("Split on first underscore result is " + str(result2))
siteNUM = result[0]
# gp.AddMessage("Site Number is " + siteNUM)
if len(siteNUM) == 1:
siteNUM = "00" + siteNUM
elif len(siteNUM) == 2:
siteNUM = "0" + siteNUM
siteDATE = result[1]
# gp.AddMessage("Date is " + siteDATE)
siteNOTE = result[2]
# gp.AddMessage("Note is " + siteNOTE)
outRasterName = "SE" + "_" + siteDATE
lenRasterName = len(outRasterName)
if lenRasterName > 13:
gp.AddMessage("Output Raster Name is too long: " + outRasterName)
# out_fgdb = "C:/TEMP/ED/123L/coregistered/123L.gdb"
# out_fgdb = (outPath + "/" + siteNUM + inSide + ".gdb")
outRasterNameFull = (outPath + outRasterName)
# gp.AddMessage("Full Output Grid Name: " + outRasterNameFull)
shortFCName = ("pt" + siteNUM + inSide + "_" + siteDATE)
# gp.AddMessage("Short Output FC Name: " + shortFCName)
outFCNameFull = (outPath + shortFCName)
# gp.AddMessage("Full Output FC Name: " + outFCNameFull)
# outFCNameFull = (out_fgdb + "/" + shortFCName)
# gp.AddMessage("Full Output FC Name: " + outFCNameFull)
# Get comma delimited x,y,z file contents into a list
fileHandle = open(inTXTfull, "r")
inFileLinesList = fileHandle.readlines()
fileHandle.close()
# create empty output list
outFileLinesList = []
# set file header as first line of output list
outFileLinesList.append(inHeader + '\n')
# copy only data lines {lines with numeric first character} to output list
for line in inFileLinesList:
tmpOut = line.replace(',', ' ')
lineOut = tmpOut.strip() + '\n'
pos = lineOut.find("GRID_1m")
if pos != -1:
# lineOut = line.strip[0:pos-1] + '\n'
lineOut = lineOut[0:pos-1] + '\n'
lineOut = lineOut.strip() + '\n'
lineChk = lineOut[0]
if lineChk.isdigit():
outFileLinesList.append(lineOut)
# set footer as last line of output list
outFileLinesList.append(inFooter)
outFilename = inTXTfull
# compare in / out lists to see if need to write file
if inFileLinesList != outFileLinesList:
fileHandle = open(outFilename,"w")
fileHandle.writelines(outFileLinesList)
fileHandle.close()
# Use the projection file as input to the SpatialReference class
prjFile = r"C:\arcgis\Coordinate Systems\Projected Coordinate Systems\State Plane\NAD 1983\NAD 1983 StatePlane Arizona Central FIPS 0202.prj"
spatialRef = gp.CreateObject("spatialreference")
spatialRef.CreateFromFile(prjFile)
# Process: Create Feature Class...
gp.CreateFeatureclass_management(out_fgdb, shortFCName, "POINT", "", "DISABLED", "DISABLED", "", "", "0", "0", "0")
# Create the features from the XYZ text file
gp.CreateFeaturesFromTextFile(inTXTfull, inSep, outFCNameFull, spatialRef)
# AddField_management (in_table, field_name, field_type, {field_precision}, {field_scale}, {field_length},
# {field_alias}, {field_is_nullable}, {field_is_required}, {field_domain})
gp.AddField_management(outFCNameFull, "X", "DOUBLE", "20", "20", "", "", "NULLABLE", "NON_REQUIRED", "")
gp.AddField_management(outFCNameFull, "Y", "DOUBLE", "20", "20", "", "", "NULLABLE", "NON_REQUIRED", "")
gp.AddField_management(outFCNameFull, "Z", "DOUBLE", "20", "20", "", "", "NULLABLE", "NON_REQUIRED", "")
# Find the name of the shape field using Describe.
strShapeFieldName = gp.Describe(outFCNameFull).ShapeFieldName
# Create an update cursor to index through all the features in the feature class table.
objRowList = gp.UpdateCursor(outFCNameFull)
objRow = objRowList.Next()
try:
while objRow:
# Create a geometry object from the Shape field.
objGeometry = objRow.GetValue(strShapeFieldName)
# Assuming this feature class is a point shapefile, access the point XYZ
# "parts" and copy the values into the X/Y/Z fields.
objPart = objGeometry.GetPart(0)
objRow.SetValue("X", objPart.X)
objRow.SetValue("Y", objPart.Y)
objRow.SetValue("Z", objPart.Z)
# save the changes to the attribute table
objRowList.UpdateRow(objRow)
# release objects from memory
del objRow, objPart, objGeometry
objRow = objRowList.Next()
except:
print "error in script"
print gp.GetMessages()
sys.exit()
gp.AddMessage("Created XYZ Point Feature Class: " + outFCNameFull)
try:
# Process: FeatureToRaster_conversion
gp.FeatureToRaster_conversion(outFCNameFull, InField, outRasterNameFull, InCellSize)
gp.AddMessage("Created XYZ GRID: " + outRasterNameFull)
# Local variables...
outGRIDcm = (out_fgdb + "/" + "cm" + outRasterName)
outGRIDint = (out_fgdb + "/" + "i" + outRasterName)
tmpPOLY = (out_fgdb + "/" + "tmpPOLY")
outPOLY = (out_fgdb + "/" + "py" + siteNUM + inSide + "_" + siteDATE + "_bnd")
outBUFR = (out_fgdb + "/" + "py" + siteNUM + inSide + "_" + siteDATE + "_bndbuf")
tmpTIN = (out_fgdb + "/" + "tn" + siteNUM + inSide + "_" + siteDATE + "_tin")
# Process: Times 100 to get cm grid
gp.Times_sa(outRasterNameFull, 100, outGRIDcm)
gp.AddMessage("Created XYZ Float cm GRID: " + outGRIDcm)
# Process: Int...
gp.Int_sa(outGRIDcm, outGRIDint)
gp.AddMessage("Created XYZ Integer cm GRID: " + outGRIDint)
# Process: Raster to Polygon...
gp.RasterToPolygon_conversion(outGRIDint, tmpPOLY, "NO_SIMPLIFY", "Value")
gp.AddMessage("Created Polygons from XYZ Integer GRID: " + tmpPOLY)
# Process: Dissolve...
gp.Dissolve_management(tmpPOLY, outPOLY, "", "", "MULTI_PART", "DISSOLVE_LINES")
gp.AddMessage("Created Boundary Polygon from polygon dissolve operation: " + outPOLY)
# Process: Buffer...
gp.Buffer_analysis(outPOLY, outBUFR, "1 Meters", "FULL", "ROUND", "NONE", "")
gp.AddMessage("Created Buffered Boundary Polygon (1 meter): " + outBUFR)
logfilename = (inPath + "log.dat")
fileHandle = open(logfilename,'a')
# create empty output list
outLogList = []
# Add process lines
outLogList.append("Input: XYZ Point Text File = " + inTXTfull + "\n")
outLogList.append("Output: XYZ Point Feature Class = " + outFCNameFull + "\n")
outLogList.append("Output: XYZ Raster = " + outRasterNameFull + "\n")
outLogList.append("Parameters: XYZ Points to Raster: CellSize = " + str(InCellSize) + "\n")
outLogList.append("Output: XYZ Float cm Raster = " + outGRIDcm + "\n")
outLogList.append("Output: XYZ Integer Raster = " + outGRIDint + "\n")
outLogList.append("Output: Temporary XYZ Integer Raster to Polygons Undissolved = " + tmpPOLY + "\n")
outLogList.append("Parameters: Integer Raster to Polygon operation: " + outGRIDint + ", " + tmpPOLY + ", NO_SIMPLIFY, Value" + "\n")
outLogList.append("Output: Dissolved Boundary Polygon = " + outPOLY + "\n")
outLogList.append("Parameters: Dissolve Polygons operation: " + tmpPOLY + ", " + outPOLY + ", "", "", MULTI_PART, DISSOLVE_LINES" + "\n")
outLogList.append("Output: Boundary Polygon buffered 1 meter = " + outBUFR + "\n")
outLogList.append("Parameters: Buffer Boundary Polygon operation: " + outPOLY + ", " + outBUFR + ", " + "1 Meters, FULL, ROUND, NONE, """ + "\n")
outLogList.append(" " + '\n')
fileHandle.writelines(outLogList)
fileHandle.close()
gp.AddMessage("Log file written to: " + logfilename)
count = count + 1
gp.AddMessage(str(count)+ " Text Files Processed")
except:
print "error in script"
print gp.GetMessages()
sys.exit()
try:
# Local variables
inputs = ""
gp.Workspace = out_fgdb
max_grid = (out_fgdb + "/" + "max_grid")
min_grid = (out_fgdb + "/" + "min_grid")
GRIDlist = gp.ListRasters("SE*", "GRID")
gp.AddMessage("")
gp.AddMessage("GRIDlist is: " + str(GRIDlist))
# Get all the GRIDS in the list and separate by a semi-colon
for raster in GRIDlist:
inputs += raster + ";"
# Echo out the input list
gp.AddMessage("")
gp.AddMessage("Inputs List = " + inputs)
# Process: Cell Statistics...
# Create the MAXIMUM GRID
# gp.CellStatistics_sa(inputs, max_grid, "MAXIMUM")
# gp.AddMessage("Created Maximum GRID = " + str(max_grid))
# Process: MosaicToNew
gp.MosaicToNewRaster_management(inputs, (str(out_fgdb) + "/"), "max_grid", spatialRef, "32_BIT_SIGNED", "1","1", "MAXIMUM", "#")
gp.AddMessage("Created Maximum GRID = " + str(max_grid))
# Process: Cell Statistics...
# Create the MINIMUM GRID
# gp.CellStatistics_sa(inputs, min_grid, "MINIMUM")
# gp.AddMessage("Created Minimum GRID = " + str(min_grid))
# Process: MosaicToNew
gp.MosaicToNewRaster_management(inputs, (str(out_fgdb) + "/"), "min_grid", spatialRef, "32_BIT_SIGNED", "1","1", "MINIMUM", "#")
gp.AddMessage("Created Minimum GRID = " + str(min_grid))
except:
# If an error occurred while running a tool, then print the messages.
print gp.GetMessages()
# try:
# Feature class to hold exported MIN GRID points
# ptMINgrid = (out_fgdb + "/" + "ptMINgrid")
# Process: RasterToPoint_conversion
# gp.RasterToPoint_conversion(min_grid, ptMINgrid)
# gp.AddMessage("Created Points from Minimum GRID = " + str(ptMINgrid))
# Feature class to hold exported MIN GRID points
# ptMAXgrid = (out_fgdb + "/" + "ptMAXgrid")
# Process: RasterToPoint_conversion
# gp.RasterToPoint_conversion(max_grid, ptMAXgrid)
# gp.AddMessage("Created Points from Maximum GRID = " + str(ptMAXgrid))
# except:
# Print error message if an error occurs
# print gp.GetMessages()
# try:
# Process: Erase...
# ptMINsurvey = (out_fgdb + "/" + "ptMINsurvey")
# gp.Erase_analysis(ptMINgrid, outBUFR, ptMINsurvey, "")
# gp.AddMessage("Erased boundary of Minimum GRID = " + str(ptMINsurvey))
# Process: Create TIN...
# gp.CreateTin_3d(tmpTIN, spPROJ)
# except:
# If an error occurred while running a tool, then print the messages.
# print gp.GetMessages()