向表中插入 25 个新行。 1importarcpy23#Create insert cursor for table4rows = arcpy.InsertCursor("c:/base/data.gdb/roads_lut")56#Create 25 new rows. Set the initial row ID and distance values7forxinxrange(1, 26):8row =rows.newRow()9row.setValue("rowid", x)10row.setValue("distance...
"新DLBM","DOUBLE")#添加字段arcpy.AddMessage("新的字段添加成功)except:arcpy.AddWarning("字段已存在,添加失败")cursor=arcpy.UpdateCursor(fc)#更新游标,此操作的目的是为了更改
fc="./resource/第七次人口普查数据/中国各城市中心/中国各城市中心.shp"witharcpy.da.SearchCursor(fc,["SHAPE@XY","city"])ascursor:# 返回几何对象的特定值,此处为xy坐标,元祖格式forrowincursor:x,y=row[0]# 解开元祖city=row[1]print(f"{city}中心点坐标: {x}, {y}")# 打印点坐标>>>北京市...
最后,调用insertRow()方法向要素类中插入新行: rowValue=[('Bastrop','N',3000,(-105.345,32.234)),('Ft Davis','N',456,(-109.456,33.468))]fc="C:/data/wildfires.gdb/California"fileds=["FIRE_NAME","FIRE_CONTAINED","ACRES","SHAPE@XY"]witharcpy.da.InsertCursor(fc,fields)ascursor:forrowin...
cursor.insertRow((i,accode,arcpy.Point(120+random.random(),30+random.random())) 结果数据 SearchCursor 按照需要将数据中的值拿出来 例子 数据 用上面的数据 检索数据 代码语言:javascript 复制 #检索所有数据witharcpy.da.SearchCursor(data,fileds)ascursor:forrowincursor:print(u'id:%s;accode:%s;xy:...
cursor=arcpy.InsertCursor(lyr) foriinrange(1,10): row=cursor.newRow() row.setValue("NAME","阿拉斯加") row.setValue("ID", i) cursor.insertRow(row) # 将其删除 delcursor, row 06 UpdateCursor ===<<<Description>>>=== UpdateCursor 函数创建一个用于更新或删除指定要素类、shapefile 和表中的...
with arcpy.da.SearchCursor(fc, {"STREETNAME"}) as cursor: for row in cursor: print "Streetname = {0}".format(row[0]) 1. 2. 3. 4. 5. 2.2插入对象 使用InsertCursor函数创建一个游标对象,然后使用insertRow函数在新的一行中插入数据。
# Create insert cursor for table rows = arcpy.InsertCursor("c:/base/data.gdb/roads_lut") # Create 25 new rows. Set the initial row ID and distance values for x in range(1, 26): row = rows.newRow() row.setValue("rowid", x) row.setValue("distance", 100) rows.insertRow(row) ...
with arcpy.da.SearchCursor("Schools.shp",("Facility","Name")) as cursor: # 使用for循环遍历SearchCursor中的行,输出学校的等级和名称。注意要确保for循环缩进在with语句中 for row in sorted(cursor): print("School name: " + row[0] + " " + row[1]) ...
(workspace, output_line, "POLYLINE") # 定义线的坐标点 array = arcpy.Array() array.add(arcpy.Point(100.0, 100.0)) array.add(arcpy.Point(200.0, 200.0)) polyline = arcpy.Polyline(array) # 使用InsertCursor插入线 with arcpy.da.InsertCursor(output_line, ["SHAPE@"]) as cursor: cursor.insert...