arcpy gis根据字段批量拆分(批量分析工具-筛选功能)
# in_feather:待拆分要素类
# out_folderpath:输出路径,注意最后加“/”以与字段名拼接出输出文件路径
# split_field:拆分标准字段
import arcpy
in_feather=r"C:/Users/yang/Desktop/中国行政区矢量图/省级行政区域.shp"
out_folderpath="C:/Users/yang/Desktop/1/"
split_field="NAME"
field_data_list=[]
with arcpy.da.SearchCursor(in_feather,split_field) as cursor:
for row in cursor:
if row[0] not in field_data_list:
field_data_list.append(row[0])
forselect_data infield_data_list:
arcpy.Select_analysis(in_feather,out_folderpath+select_data+'.shp',split_field+"="+"'"+select_data+"'")
该脚本实现把“省级行政区域”按“NAME”拆分成多个图层。
使用的函数:arcpy.Select_analysis
语法:Select_analysis (in_features,out_feature_class, {where_clause})
注意:ArcGis10.5以上版本有函数:SplitByAttributes_analysis (Input_Table, Target_Workspace,Split_Fields) 可使用此功能直接批量拆分