下面是一个映射文件提取的例子，展示了如何编写两个特性类型:二氢睾酮和SASAUS \ BND \ BARRIERL．
*********************************************************** READER_TYPE形状READER_KEYWORD形状WRITER_TYPE VPF_DB WRITER_KEYWORD VPF_DB SHAPE_DATASET“G: \ SampleData \ \ LOTLINES形状。轴马力”VPF_DB_DATASET“G: \结合\“VPF_DB_PRODUCT VMAP0 VPF_DB_LOG_ALL_MESSAGES没有LOG_FILENAME”G: \结合\ shape2vpf_db.log“LOG_APPEND不 # ---------------------------------------------------------- SHAPE_DEF LOTLINES \ SHAPE_GEOMETRY shape_polyline \ LOTLINE_ID数量(5 0 ) # ---------------------------------------------------------- FACTORY_DEF *TeeFactory \ FACTORY_NAME“源- >通用”输入FEATURE_TYPE * \ \输出FEATURE_TYPE * \ @Transform(形状、FME_GENERIC PRESERVE_GEOMETRY ) # ---------------------------------------------------------- FACTORY_DEF * CreationFactory \ FACTORY_NAME NULLGEOMETRYCREATOR FEATURE_TYPE \ CREATE_AT_END没有\ NUMBER_TO_CREATE 1 \输出NULLGEOMETRYCREATOR_CREATED \ @SupplyAttributes (? creation_instance 0 ) # ---------------------------------------------------------- FACTORY_DEF * TeeFactory \ FACTORY_NAME“NULLGEOMETRYCREATOR_CREATED - > dht相关器“\输入FEATURE_TYPE NULLGEOMETRYCREATOR_CREATED \输出FEATURE_TYPE dht \ @Transform (FME_GENERIC VPF_DB) \@SupplyAttributes (database_name test_db ) # ---------------------------------------------------------- FACTORY_DEF * TeeFactory \ FACTORY_NAME“LOTLINES - > SASAUS \ BND \ BARRIERL相关器“\输入FEATURE_TYPE LOTLINES \输出FEATURE_TYPE SASAUS \ BND \ BARRIERL \ @Transform (FME_GENERIC VPF_DB) #---------------------------------------------------------------- * VPF_DB形状 * # ---------------------------------------------------------------- VPF_DB_DEF dht \ VPF_GEOMETRY所有\ libraryname char (10 ) # ---------------------------------------------------------------- VPF_DB_DEF SASAUS \ BND \ BARRIERL \ VPF_GEOMETRY**********************************************************