附件二洪水风险图成图技术要求二〇〇九年十月目录1风险图信息..........................................................................................32风险图图层..........................................................................................42.1基础地理信息图层...........................................................................................42.2工程信息图层...................................................................................................62.3非工程信息图层...............................................................................................72.4风险要素信息图层...........................................................................................83风险图及其图层延伸信息................................................................103.1底图图层延伸信息.........................................................................................103.2工程图层延伸信息.........................................................................................113.3非工程图层延伸信息.....................................................................................113.4风险要素图层延伸信息.................................................................................113.5风险图延伸信息.............................................................................................124风险图数据类型及主要属性............................................................144.1数据类型.........................................................................................................144.2基础地理信息数据及主要属性.....................................................................144.3工程信息数据及主要属性.............................................................................164.4非工程信息数据及主要属性.........................................................................184.5风险要素信息数据及主要属性.....................................................................195图层表现风格....................................................................................205.1基础地理、工程及非工程图层表现风格.....................................................205.2风险要素图层表现风格.................................................................................206纸质图布局........................................................................................246.1字体字号与尺寸.............................................................................................246.2数学要素.........................................................................................................256.3其他要素.........................................................................................................257系统编码说明....................................................................................277.1洪水风险图编码.............................................................................................277.2风险图类别编码.............................................................................................277.3行政区编码.....................................................................................................277.4流域/河流编码................................................................................................287.5防洪工程编码.........................................................................
