import arcpy # 输入参数 input_features = arcpy.GetParameterAsText(0) join_field = arcpy.GetParameterAsText(1) target_feature = arcpy.GetParameterAsText(2) target_field = arcpy.GetParameterAsText(3) area_threshold = arcpy.GetParameterAsText(4) # 创建空间连接 arcpy.SpatialJoin_analysis(input_features, target_feature, "in_memory/spatial_join", "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT") # 选择面积大于阈值的连接要素 arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", "\"Shape_Area\" > " + str(area_threshold)) # 统计相同连接字段值的面积总和 arcpy.Statistics_analysis("in_memory/selected_features", "in_memory/summarized_features", "Shape_Area SUM", join_field) # 创建字典，存储连接字段值和对应的面积总和 sum_dict = {} with arcpy.da.SearchCursor("in_memory/summarized_features", [join_field, "SUM_Shape_Area"]) as cursor: for row in cursor: sum_dict[row[0]] = row # 更新目标要素中的字段值 with arcpy.da.UpdateCursor(target_feature, [target_field, join_field]) as cursor: for row in cursor: join_value = row[1] if join_value in sum_dict: area_sum = sum_dict[join_value] row[0] = str(area_sum[1]) cursor.updateRow(row) # 导出结果 arcpy.CopyFeatures_management(target_feature, arcpy.GetParameterAsText(5))脚本运行错误：Traceback (most recent call last): File "D:\实验2\空间连接.py", line 14, in <module> File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\analysis.py", line 84, in Select raise e ExecuteError: ERROR 000358: 无效的表达式 "Shape_Area" > 600 SquareMeters 执行(Select)失败。 执行(fzzz)失败。请改正代码

这个错误是因为在执行选择分析时，表达式中的字段名 "Shape_Area" 没有被正确地引用。可以使用以下代码来修复这个错误：

# 选择面积大于阈值的连接要素
arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", "\"Shape_Area\" > " + str(area_threshold) + " SquareMeters")

在表达式中添加 " SquareMeters" 后缀来引用正确的单位。

相关问题

import arcpy# 输入参数 input_features = arcpy.GetParameterAsText(0) # 连接要素 join_field = arcpy.GetParameterAsText(1) # 连接字段 target_feature = arcpy.GetParameterAsText(2) # 目标要素 target_field = arcpy.GetParameterAsText(3) # 目标字段 area_threshold = arcpy.GetParameterAsText(4) # 面积阈值 # 创建空间连接 arcpy.SpatialJoin_analysis(input_features, target_feature, "in_memory/spatial_join", "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT") # 选择面积大于阈值的连接要素 arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", ""Shape_Area" > " + str(area_threshold)) # 统计相同连接字段值的面积总和 arcpy.Statistics_analysis("in_memory/selected_features", "in_memory/summarized_features", "Shape_Area SUM", join_field) # 创建字典，存储连接字段值和对应的面积总和 sum_dict = {} with arcpy.da.SearchCursor("in_memory/summarized_features", [join_field, "SUM_Shape_Area"]) as cursor: for row in cursor: sum_dict[row[0]] = row # 更新目标要素中的字段值 with arcpy.da.UpdateCursor(target_feature, [target_field, join_field]) as cursor: for row in cursor: join_value = row[1] if join_value in sum_dict: area_sum = sum_dict[join_value] row[0] = str(area_sum) cursor.updateRow(row) # 导出结果 arcpy.CopyFeatures_management(target_feature, arcpy.GetParameterAsText(5))运行上面代码出现错误：SyntaxError: invalid syntax (空间连接.py, line 11) 执行(fzzz)失败。请改正出完整的代码

import arcpy

# 输入参数
input_features = arcpy.GetParameterAsText(0)
# 连接要素
join_field = arcpy.GetParameterAsText(1)
# 连接字段
target_feature = arcpy.GetParameterAsText(2)
# 目标要素
target_field = arcpy.GetParameterAsText(3)
# 目标字段
area_threshold = arcpy.GetParameterAsText(4)
# 面积阈值

# 创建空间连接
arcpy.SpatialJoin_analysis(input_features, target_feature, "in_memory/spatial_join", "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT")

# 选择面积大于阈值的连接要素
arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", "\"Shape_Area\" > " + str(area_threshold))

# 统计相同连接字段值的面积总和
arcpy.Statistics_analysis("in_memory/selected_features", "in_memory/summarized_features", "Shape_Area SUM", join_field)

# 创建字典，存储连接字段值和对应的面积总和
sum_dict = {}
with arcpy.da.SearchCursor("in_memory/summarized_features", [join_field, "SUM_Shape_Area"]) as cursor:
for row in cursor:
sum_dict[row[0]] = row[1]

# 更新目标要素中的字段值
with arcpy.da.UpdateCursor(target_feature, [target_field, join_field]) as cursor:
for row in cursor:
join_value = row[1]
if join_value in sum_dict:
area_sum = sum_dict[join_value]
row[0] = str(area_sum)
cursor.updateRow(row)

# 导出结果
arcpy.CopyFeatures_management(target_feature, arcpy.GetParameterAsText(5))

import arcpy # 输入参数 input_features = arcpy.GetParameterAsText(0) input_target = arcpy.GetParameterAsText(1) output_location = arcpy.GetParameterAsText(2) overlap_area = arcpy.GetParameterAsText(3) # 创建输出要素类 output_features = arcpy.CreateFeatureclass_management(output_location, "OutputFeatures", "POLYGON") # 进行空间连接 arcpy.SpatialJoin_analysis(input_features, input_target, output_features, "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT", overlap_area) # 输出结果 arcpy.SetParameterAsText(4, output_features)运行上面代码出现错误：Traceback (most recent call last): File "D:\实验2\空间连接.py", line 12, in <module> NameError: name 'output_features' is not defined 执行(ccc)失败。请改正上面代码

修改代码如下：

import arcpy  

# 输入参数 
input_features = arcpy.GetParameterAsText(0) 
input_target = arcpy.GetParameterAsText(1) 
output_location = arcpy.GetParameterAsText(2) 
overlap_area = arcpy.GetParameterAsText(3)  

# 创建输出要素类 
output_features = arcpy.CreateFeatureclass_management(output_location, "OutputFeatures", "POLYGON")  

# 进行空间连接 
arcpy.SpatialJoin_analysis(input_features, input_target, output_features, "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT", overlap_area)  

# 输出结果 
arcpy.SetParameterAsText(4, output_features)

主要修改了两点：

1. 在创建输出要素类时，将 `arcpy.CreateFeatureclass_management` 的返回值赋值给 `output_features` 变量。
2. 在最后一行输出结果时，将 `output_features` 变量作为参数传递给 `arcpy.SetParameterAsText`。