基于ArcGIS Engine二次开发的国有林场DEM数据生产及实现

The Production and Achievement of DEM Data in State-owned Forest Farm Based on the Secondary Development of ArcGIS Engine

DEM即数字高程模型,主要包括规则格网模型(GRID)和不规则三角网模型(TIN);在VisualC++6.0编程环境下,应用ArcGIS Engine的COM接口对已获得的具有高程信息的矢量数据通过TIN构网,生产出满足国有林场日常生产和规划设计的DEM数据。

DEM, that is digital elevation model, mainly includes grid model rules （GRID）and triangulated irregular network model （TIN）.The AreGIS Engine application of COM interfaces in Visual C ＋ ＋ 6.0 programming environment have been obtained with the height information of vector data structure through the TIN network. Finally, the DEM data for meeting the requirements from the day-to-day production, planning and design in the state--owned forest farm is made.