피처 클래스의 사본을 생성하고 ArcPy를 사용하여 지정된 거리만큼 간격 띄우기하는 스크립트 도구를 작성 하시겠습니까?

다각형 피쳐 클래스를 복제하고 모든 다각형을 x 및 y 방향으로 약 10 피트 오프셋합니다. 지난주 에이 작업을 수행 할 수있는 방법이 있는지 물어 보았고 arcpy를 사용하여 내 자신의 파이썬 스크립트를 만들어야한다고 들었습니다. arcpy를 사용하여 자체 스크립트를 만들었지 만 작동하지 않습니다.

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

70 행에서이 오류가 계속 발생합니다.

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

입력을 배열로 정의했기 때문에 왜이 오류가 발생하는지 알 수 없습니다.

왜 내가이 오류가 발생하는지 알고 있습니까?

배열에 다각형을 만들고 추가하는 대신 점 배열을 부품 배열에 추가하십시오. 이것을 변경하십시오 :

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

이에:

partArray.add(pntArray)
pntArray.removeAll()

또한 행을 삽입하려고 시도하는 코드에 문제가 있습니다. 삽입 커서를 사용하여 새 행을 작성하고 삽입해야합니다. 원래 코드 샘플의 77 행에서 시작 :

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

편집 : 내부 while 루프의 "pnt = part.next ()"를 try / except 블록 아래로 이동하여 점을 건너 뛰지 않고 내부 링을 테스트하는 if 블록이 실행되도록합니다. 현재 게시물의 코드는 내부 링을 선택하지 않습니다. 여기에 내가 설명한 모든 수정 후의 모든 것이 있습니다.

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