位于osmtocsv，将osm文件转化为node、link、poi三个csv文件。
位于 alg 包中，trangle_net_single.py是单次的处理，trangle_net_iteration.py是多次迭代的版本
当前所用数据为poi_cleaned.csv。poi.csv为原始数据，两个数据集在属性上各个属性占比基本一致，区别仅为poi_cleaned.csv中删除了name为空的数据。
- nan (无效值)
- yes (是)
- stadium (体育场)
- office (办公室)
- house (住宅)
- train_station (火车站)
- roof (棚顶，遮阴的那种)
- commercial (商业)
- retail (零售)
- wall (墙)
- gate (门)
- gatehouse (城楼，比如凯旋门、鼓楼)
- boathouse (船坞)
- transportation （公共交通站点）
- dormitory (宿舍)
- university (大学)
- school (学校)
- hotel (酒店)
- church (教堂)
- residential (住宅区)
- garages (车库)
- ruins (废墟)
- hospital (医院)
- apartments (公寓)
- greenhouse (温室、大棚)
- temple (寺庙)
- college (学院)
- public (公共场所)
- industrial (工业)
- garage (车库)
- kindergarten (幼儿园)
- ger (蒙古包)
- service (专门设计用于容纳泵、变压器或测量设备等持续工作的机器的建筑物。通常，当机器正常运行时，这种建筑不适合人们在里面。）
- shrine (神社)
- stable (马厩)
- construction (建筑施工)
- sty (猪舍)
- company (公司)
- hut (小屋)
- warehouse (仓库)
- chapel (小教堂)
- shed (棚屋)
- semidetached_house (半独立式住宅)
- mosque (清真寺)
- pavilion (亭子)
- no (否)
- tower (塔)
- grandstand (看台)
- bungalow (平房)
- farm_auxiliary (农场辅助建筑)
- railway_station (火车站)
- carport (车棚)
- outbuilding (附属建筑)
- hotel;yes (酒店;是)
- yes;school (是;学校)
- nan (无效值)
- theatre (剧院)
- place_of_worship (礼拜场所)
- school (学校)
- shelter (避难所)
- hospital (医院)
- university (大学)
- restaurant (餐馆)
- marketplace (市场)
- parking (停车场)
- college (学院)
- research_institute (研究所)
- library (图书馆)
- grave_yard (墓地)
- planetarium (天文馆)
- bus_station (公交车站)
- arts_centre (艺术中心)
- police (警察局)
- fuel (加油站)
- concert_hall (音乐厅)
- car_wash (洗车店)
- bank (银行)
- fountain (喷泉)
- pharmacy (药店)
- toilets (厕所)
- charging_station (充电站)
- courthouse (法院)
- public_building (公共建筑)（注：这个属性已经被废弃）
- food_court (美食广场)
- post_office (邮局)
- fast_food (快餐店)
- clinic (诊所)
- kindergarten (幼儿园)
- driver_training (驾校)
- exhibition_centre (展览中心)
- cinema (电影院)
- prison (监狱)
- cafe (咖啡馆)
- nightclub (夜总会)
- community_centre (社区中心)
- childcare (托儿所)
- bar (酒吧)
- parcel_locker (包裹寄存柜)
- public_bookcase (公共书架)
- conference_centre (会议中心)
- townhall (市政厅)
- shower (淋浴)
- social_facility (社会福利设施)
- bicycle_parking (自行车停车场)
- public_bath (公共浴室)
- fire_station (消防站)
- smoking_area (吸烟区)
- research (研究)
- bicycle_rental (自行车租赁)
- car_pooling (拼车)
- animal_breeding (动物繁殖)
- waste_transfer_station (垃圾转运站)
- post_depot (邮局仓库)
- music_school (音乐学校)
- studio (工作室)
- dentist (牙科诊所)
- postpartum_care (产后护理)
- nursing_home (养老院)
- car_rental (汽车租赁)
- recycling (回收)
- crematorium (火葬场)
- social_centre (社会中心)
- vehicle_inspection (车辆检查)
- parking_space (停车位)
- ice_cream (冰淇淋店)
- sanitary_dump_station (卫生倾倒站)
- driving_school (驾校)
- stadium (体育场)
- nan (无效值)
- park (公园)
- garden (花园)
- pitch (球场)
- sports_centre (体育中心)
- golf_course (高尔夫球场)
- sports_hall (体育馆)
- swimming_pool (游泳池)
- track (跑道)
- fitness_centre (健身中心)
- horse_riding (马术)
- water_park (水上乐园)
- playground (游乐场)
- resort (度假村)
- dance (舞蹈)
- nature_reserve (自然保护区)
- outdoor_seating (户外座位)
- ice_rink (溜冰场)
- bleachers (看台)
- fitness_station (健身站)
- bandstand (乐队演奏台)
- common (公共用地)
- fishing (钓鱼)