在 ArcPy 中,deleteidentical_management 方法可用于删除具有相同要素的多个要素类中的重复要素。该方法有助于简化地理数据的管理,特别是在处理大型要素类时。本文将详细介绍 deleteidentical_management 的用法,并提供示例代码。 一、概述 deleteidentical_management 方法是 ArcPy 工具箱的一部分,用于删除具有相同属性和...
arcpy.DeleteFeatures_management("C:\Users\yao\Documents\ArcGIS\Default.gdb\地级市") except arcpy.ExecuteWarning: print arcpy.GetMessages()运行结果如下: 执行: DeleteFeatures C:\Users\yao\Documents\ArcGIS\Default.gdb\地级市开始时间: Thu Oct 13 16:46:30 2011WARNING 000117: 警告: 生成的输出为空...
if arcpy.Exists(p_fc2): arcpy.Delete_management(p_fc2) arcpy.Copy_management(p_fc,p_fc2) if arcpy.Exists(l_fc2): arcpy.Delete_management(l_fc2) arcpy.Copy_management(l_fc,l_fc2) # Perform the move with arcpy.da.UpdateCursor(p_fc2, ["SHAPE@XY"]) as cursor: for row in cursor: ...
arcpy.Delete_management("roadbuffer") 显式指定文件夹中的所有要素文件 env.workspace ="F:/map"fcs = arcpy.ListFeatureClasses("*","polygon")#寻找所有面矢量文件forfcinfcs:printfc.encode("utf-8")#含中文输出UTF-8 显示矢量文件中所有字符串类型的字段名 fds = arcpy.ListFields ('F:\\map\\regio...
path.join(outgdb, desc["baseName"]) arcpy.CopyFeatures_management(infc, outfc) 使用游标(cursor)访问数据 游标是一个数据库用于访问表(table)中的一组记录或者操作此记录,表中的记录也称作行(rows)。 游标有三种类型:搜索,插入和更新。分别创建于arcpy.da模块的arcpy.da.SearchCursor, arcpy.da.InsertCursor...
arcpy.DeleteFeatures_management('test')# 删除多余的字段arcpy.DeleteField_management(in_table=featurename,drop_field=['INTERSECT','TARGET_FID'])[0]# 增加计数字段,设定为图层名arcpy.AddField_management(featurename,fc,'LONG')[0]# Process: 计算字段 (计算字段)arcpy.CalculateField_management(in_table...
进行数据清理arcpy.DeleteField_management(input_feature_class,["unwanted_field"])arcpy.MakeFeatureLayer_management(input_feature_class,"data_lyr")arcpy.SelectLayerByAttribute_management("data_lyr","NEW_SELECTION","FieldName IS NOT NULL")arcpy.CopyFeatures_management("data_lyr",output_feature_class)...
这些操作可以通过ArcPy的`CreateFeatureClass_management`、`UpdateCursor`、`DeleteFeatures_management`等函数实现 4.地图自动化: - ArcPy还可以用于地图的自动化生成,如批量生成地图、更新地图布局等 这些操作可以通过ArcPy的`Mapping`模块实现 四、ArcPy的高级应用:游标对象 在ArcPy中,游标对象(Cursor Object)是处理GIS...
28printarcpy.AddMessage("7- 删除要素...")29arcpy.Delete_management(fcnew)30printarcpy.AddMessage("8- 处理完成...\n以下是变更记录:")3132#读取错误要素游标,写入csv文件33cursor = arcpy.da.SearchCursor(ckjg, ["admin_code","name","X","Y"])34i = 135forrowincursor:3637ck = str(i) +...
arcpy.management.CalculateField("updated_layer", "field_name", "new_value", "PYTHON") 3.如果需要,可以使用arcpy.DeleteFeatures工具删除原始图层中需要更新的要素。例如,可以使用以下代码删除原始图层中的特定要素: arcpy.DeleteFeatures_management("original_layer", "SQL_expression") 4.最后,可以使用arcpy.Ap...