osm-pbf-to-mddf:将开放街道地图协议缓冲区转换为 mddf

osm-pbf-to-mddf 将开放街道地图协议缓冲区转换为 例子 #!/usr/bin/env node var fs = require ( 'fs' ) ; var fd = fs . openSync ( argv . outfile , 'w+' ) ; var stat = fs . fstatSync ( fd ) ; var mddf = require ( 'mddf' ) ; var df = mddf ( { blksize : argv . blksize , dim : 3 , size : 0 , read : fs . read . bind ( null , fd ) , write : fs . write . bind ( null , fd ) } ) ; var osmddf = require ( 'osm-pb