| environ. |
attribute A distinctive feature of an object. In mapping and GIS applications, the objects are points, lines, or polygons that represent features such as sampling locations, section corners (points); roads and streams (lines); lakes, forest and soil types (polygons). These attributes can be further divided into classes such as tree species (Douglas-fir and ponderosa pine) for forest types and paved and gravel for road types. Multiple attributes are generally associated with objects that are located on a single map layer (某个物体的特殊性质。在绘图和ＧＩＳ应用程序中，物体包括点，线，多边形，它们代表一些特性，比如地点，区域角落(点)，路线和河流(线)；河，森林和土壤类型(多边形)。这些属性可以被进一步分类，比如按照树木种类分为花旗松和西黄松，按照道路种类分为铺好的路和碎石路。在单一的地图层上，一般会有多种属性。) |
