Créer un outil de script qui créera une copie de la classe d'entités et la compensera par une distance donnée à l'aide d'ArcPy?

Je souhaite dupliquer une classe d'entités surfaciques et décaler tous les polygones d'environ 10 pieds dans les directions x et y. J'ai demandé s'il y avait un moyen de le faire la semaine dernière, et j'ai été informé que j'aurais très probablement besoin de créer mon propre script python en utilisant arcpy. J'ai créé mon propre script en utilisant arcpy, mais cela ne fonctionne pas:

import arcpy
from arcpy import env
import os

env.overwriteOutput = True

# Get arguments: 
#   Input polygon feature class
#   Output polygon feature class
#
inputFeatureClass = arcpy.GetParameterAsText(0)
outputFeatureClass = arcpy.GetParameterAsText(1)
xShift = arcpy.GetParameterAsText(2)
yShift = arcpy.GetParameterAsText(3)

shapeName = arcpy.Describe(inputFeatureClass).shapeFieldName

# Create the output feature class with the same fields and spatial reference as the input feature class
arcpy.CreateFeatureclass_management(os.path.dirname(outputFeatureClass), os.path.basename(outputFeatureClass), "POLYGON", inputFeatureClass, "", "", inputFeatureClass)

# Create a search cursor to iterate through each row of the input feature class
inrows = arcpy.SearchCursor(inputFeatureClass)
# Create an insert cursor to insert rows into the output feature class
outrows = arcpy.InsertCursor(outputFeatureClass)

# Create empty Point and Array objects
pntArray = arcpy.Array()
partArray = arcpy.Array()

# Loop through each row/feature
for row in inrows:
    # Create the geometry object
    feature = row.getValue(shapeName)

    partnum = 0

    # Count the total number of points in the current multipart feature
    partcount = feature.partCount


    while partnum < partcount:
        part = feature.getPart(partnum)
        pnt = part.next()
        pntcount = 0

        # Enter while loop for each vertex
        #
        while pnt:

            pnt = part.next()
            shiftedPoint = arcpy.Point()
            try:
                shiftedPoint.ID = pnt.ID
                shiftedPoint.X = pnt.X + float(xShift)
                shiftedPoint.Y = pnt.Y + float(yShift)
            except AttributeError:
                continue
            #shiftedPoint = arcpy.Point(float(pnt.X) + float(xShift), float(pnt.Y) + float(yShift))
            pntArray.add(shiftedPoint)
            pntcount += 1

            # If pnt is null, either the part is finished or there is an 
            #   interior ring
            #
            if not pnt: 
                pnt = part.next()
                if pnt:
                    arcpy.AddMessage("Interior Ring:")
        # Create a polygon using the array of points
        polygon = arcpy.Polygon(pntArray)

        # Empty the array for the next run through the loop
        pntArray.removeAll()

        # Add the polygons (or 'parts') to an array. This is necessary for multipart features, or those with holes cut in them
        partArray.add(polygon)
        arcpy.AddMessage("Added a polygon to the partArray!")
        partnum += 1

    # Create a new row object that will be inserted into the ouput feature class. Set newRow = row so that it has the same attributes
    # Set newRow.shape = partArray so that the only thing different about this new feature is that its geometry is different (shifted)
    newRow = row
    newRow.shape = partArray

    outrows.insertRow(newRow)

    # Empy the array for the next run through the loop
    partArray.removeAll()

del inrows, outrows

Je reçois toujours cette erreur sur la ligne 70

<type 'exceptions.ValueError'>: Array: Add input not point nor array object

Je ne peux pas comprendre pourquoi cela me donne cette erreur, car j'ai défini l'entrée comme un tableau.

Est-ce que quelqu'un sait pourquoi je reçois cette erreur?

Au lieu de créer et d'essayer d'ajouter un polygone à votre tableau, ajoutez votre tableau de points au tableau de pièces. Change ça:

polygon = arcpy.Polygon(pntArray)
pntArray.removeAll()
partArray.add(polygon)

Pour ça:

partArray.add(pntArray)
pntArray.removeAll()

De plus, il y a un problème avec votre code qui essaie d'insérer la ligne. Vous devez utiliser votre curseur d'insertion pour créer une nouvelle ligne et l'insérer. À partir de la ligne 77 de votre exemple de code d'origine:

newRow = outrows.newRow()
newRow.shape = partArray
outrows.insertRow(newRow)

Edit : Vous devez également déplacer le "pnt = part.next ()" dans votre boucle while intérieure en dessous de votre bloc try / except afin de ne sauter aucun point et de sorte que le bloc if qui teste les anneaux intérieurs s'exécute. En l'état, le code de votre message ne détectera pas les anneaux intérieurs. Voici le tout après toutes les modifications que j'ai décrites:

import arcpy
from arcpy import env
import os

env.overwriteOutput = True

# Get arguments: 
#   Input polygon feature class
#   Output polygon feature class
#
inputFeatureClass = arcpy.GetParameterAsText(0)
outputFeatureClass = arcpy.GetParameterAsText(1)
xShift = arcpy.GetParameterAsText(2)
yShift = arcpy.GetParameterAsText(3)
print '\nparams: ', inputFeatureClass, outputFeatureClass, xShift, yShift, '\n'

shapeName = arcpy.Describe(inputFeatureClass).shapeFieldName

# Create the output feature class with the same fields and spatial reference as the input feature class
if arcpy.Exists(outputFeatureClass):
    arcpy.Delete_management(outputFeatureClass)
arcpy.CreateFeatureclass_management(os.path.dirname(outputFeatureClass), os.path.basename(outputFeatureClass), "POLYGON", inputFeatureClass, "", "", inputFeatureClass)

# Create a search cursor to iterate through each row of the input feature class
inrows = arcpy.SearchCursor(inputFeatureClass)
# Create an insert cursor to insert rows into the output feature class
outrows = arcpy.InsertCursor(outputFeatureClass)

# Create empty Point and Array objects
pntArray = arcpy.Array()
partArray = arcpy.Array()

# Loop through each row/feature
for row in inrows:
    # Create the geometry object
    feature = row.getValue(shapeName)
    partnum = 0
    # Count the total number of points in the current multipart feature
    partcount = feature.partCount
    print 'num parts: ', partcount
    while partnum < partcount:
        part = feature.getPart(partnum)
        pnt = part.next()
        print 'outer while'
        pntcount = 0
        # Enter while loop for each vertex
        #
        while pnt:
            shiftedPoint = arcpy.Point()
            try:
                shiftedPoint.ID = pnt.ID
                shiftedPoint.X = pnt.X + float(xShift)
                shiftedPoint.Y = pnt.Y + float(yShift)
            except AttributeError:
                continue
            pntArray.add(shiftedPoint)
            pntcount += 1
            pnt = part.next()
            print 'pntcount: ', pntcount
            # If pnt is null, either the part is finished or there is an 
            #   interior ring
            if pnt is None: 
                pnt = part.next()
                if pnt:
                    arcpy.AddMessage("Interior Ring:")
        partArray.add(pntArray)
        pntArray.removeAll()
        arcpy.AddMessage("Added a polygon to the partArray!")
        partnum += 1
    # Create a new row object that will be inserted into the ouput feature class. Set newRow = row so that it has the same attributes
    # Set newRow.shape = partArray so that the only thing different about this new feature is that its geometry is different (shifted)
    newRow = outrows.newRow()
    newRow.shape = partArray
    outrows.insertRow(newRow)
    # Empy the array for the next run through the loop
    partArray.removeAll()
del inrows, outrows