>>> import sys, os, arcpy
InPolygons = sys.argv[1]
NearContour = sys.argv[2]
OutPolygons = sys.argv[3]
ElevationFieldName = "contour" # change this to match your field name
InFolder = os.path.dirname(InPolygons) # the folder the input is in
Working = InFolder + "\\Working.gdb"
WorkingContour = Working+"\\Contour"
WorkingPoly = Working+"\\Poly"
arcpy.CreateFileGDB_management(InFolder,"Working.gdb") # create a working space
arcpy.AddMessage("Copy 1")
arcpy.CopyFeatures_management(NearContour,WorkingContour) # need to do this to take charge of names
arcpy.AddMessage("Copy 2")
arcpy.CopyFeatures_management(InPolygons,WorkingPoly)
# remove 'bad' edges, tagged with elevation = -9999 to show they are a boundary
arcpy.MakeFeatureLayer_management(WorkingContour,"Remove",ElevationFieldName + " = -9999")
arcpy.DeleteFeatures_management("Remove")
arcpy.Delete_management("Remove") # relax, it's just removing the layer, just to keep it clean
# Create a near table
arcpy.AddMessage("Near table")
arcpy.GenerateNearTable_analysis(WorkingPoly,WorkingContour,Working+"\\NearTable","0",closest="ALL")
arcpy.AddField_management(Working+"\\NearTable","Elev","DOUBLE")
try:
arcpy.AddIndex_management(Working+"\\NearTable","NEAR_FID","NEAR_FID")
except:
arcpy.AddWarning("Unable to index")
# join and copy elevations
arcpy.AddMessage("Join & calc")
arcpy.MakeTableView_management(Working+"\\NearTable","View")
arcpy.AddJoin_management("View","NEAR_FID",WorkingContour,"OBJECTID")
arcpy.CalculateField_management("View","NearTable.Elev","!Contour."+ElevationFieldName+"!","PYTHON")
arcpy.Delete_management("View") # relax, it's just removing the table view, just to keep it clean
# remove join and summary statistics
arcpy.AddMessage("Make stats")
#arcpy.RemoveJoin_management("View")
arcpy.Statistics_analysis(Working+"\\NearTable",Working+"\\NearStats",[["Elev","MIN"],["Elev","Max"]],"IN_FID")
# copy the min and max to the working contours
arcpy.AddMessage("Copy min/max")
arcpy.AddField_management(WorkingPoly,"MinElev","DOUBLE")
arcpy.AddField_management(WorkingPoly,"MaxElev","DOUBLE")
arcpy.MakeFeatureLayer_management(WorkingPoly,"Layer")
arcpy.AddJoin_management("Layer","OBJECTID",Working+"\\NearStats","IN_FID")
arcpy.CalculateField_management("Layer","Poly.MinElev","!NearStats.Min_Elev!","PYTHON")
arcpy.CalculateField_management("Layer","Poly.MaxElev","!NearStats.Max_Elev!","PYTHON")
arcpy.RemoveJoin_management("Layer")
arcpy.Delete_management("Layer") # relax, it's just removing the layer, just to keep it clean
# check for field
arcpy.AddMessage("Checking for field")
Fields = arcpy.ListFields(WorkingPoly,"nilai")
if not Fields:
arcpy.AddMessage("-Adding field")
arcpy.AddField_management(WorkingPoly,"nilai","TEXT",field_length="10")
# format the field with the min and max,
# this could be done with a field calculation
# but in this case I want a special case for isolations
arcpy.AddMessage("Cursoring")
with arcpy.da.UpdateCursor(WorkingPoly,("nilai","MinElev","MaxElev")) as UpCur:
for Feat in UpCur:
if (Feat[1]==Feat[2]):
# values are the same = an isolation
Feat[0] = str(int(Feat[1]))
else:
Feat[0] = "%d - %d" % (Feat[1],Feat[2])
UpCur.updateRow(Feat)
arcpy.AddMessage("Copy out")
arcpy.CopyFeatures_management(WorkingPoly,OutPolygons)
Result https://i.sstatic.net/jF21X.png
My Polygon and attribute table are shown in the printscreen. Please help, any sugestion using python or else. Thanks.I use 2nd Method, it takes a long time but it work. Thanks.
