基础地理信息要素分类与代码国标代码用户代码要素名称几何类型层1100001100000测量控制点1101021101021三角点点conpt1102021102025水准点点conpt1103021103021卫星定位等级点点conpt1104011104011重力点点conpt1104021104021独立天文点点conpt1109001109001测量控制点注记点anolk1200001200000数学基础1202501202502内图廓线线netln1202501202525坐标网线线netln2000002000000水系2100002100000河流2101012101012单线地面河流线hydnt2101012101013双线地面河流面hydnt2101032101031地下河段出入口有向点hydlk2101042101042单线消逝河段线hydnt2101042101043双线消逝河段面hydnt2102002102025单线时令河线hydnt2102002102025双线时令河面hydnt2103012103012单线河道干河线hydnt2103012103013双线河道干河面hydnt2103022103023漫流干河面hydnt2190002190001河流注记点annlk2200002200000沟渠2202502202503运河面hydnt2202512202525单线地面干渠线hydnt2202512202525双线地面干渠面hydnt2202522202522单线高于地面干渠线hydnt2202522202523双线高于地面干渠面hydnt2203012203012地面支渠线hydnt2203022203022高于地面支渠线hydnt2204002204002坎儿井线hydnt2205002205001渠首口有向点hydlk22050022050