地理信息系统（Geographic Information System,GIS）的普及、广泛应用必将成为21世纪的一个重要特征。MapObject是ESRI公司的组件式地理信息系统软件,本文通过比较MapObject中各种地图符号绘制方法的优缺点,从而提出了一种基于统一地...地理信息系统（Geographic Information System,GIS）的普及、广泛应用必将成为21世纪的一个重要特征。MapObject是ESRI公司的组件式地理信息系统软件,本文通过比较MapObject中各种地图符号绘制方法的优缺点,从而提出了一种基于统一地图符号结构的自定义符号块的方法。并对GIS中地图符号绘制的发展予以展望。展开更多
The history, current situation, and development trend of GIS (Geographic Information System) applied in the forest resources management were discussed in this paper. On the basis of geographic spatial characteristics ...The history, current situation, and development trend of GIS (Geographic Information System) applied in the forest resources management were discussed in this paper. On the basis of geographic spatial characteristics of forest resources data, a component geographic information system (ComGIS) was developed for forest resources management. The system embeds a GIS ActiveX control MapObjects (Inc. ESRI) on Visual C++ platform. System design, data organization and achieving way were studied and expatiated by taking Xigangzi Forestry Centre as study object. The system has many useful functions,, such as adding and display of various map layers, zoom of map by wheeling mouse, attribute and spatial data querying, map auto roaming, features rendering based on the spatial trait of data, label controlling through attribute data band with vector graph, as well as output of 'Column chart' for showing the result of statistics. At the same time, parts of source codes are attached.展开更多
文摘地理信息系统（Geographic Information System,GIS）的普及、广泛应用必将成为21世纪的一个重要特征。MapObject是ESRI公司的组件式地理信息系统软件,本文通过比较MapObject中各种地图符号绘制方法的优缺点,从而提出了一种基于统一地图符号结构的自定义符号块的方法。并对GIS中地图符号绘制的发展予以展望。
基金This work was supported by Provincial Key Technologies R and D program of Heilongjiang (GC02B608)
文摘The history, current situation, and development trend of GIS (Geographic Information System) applied in the forest resources management were discussed in this paper. On the basis of geographic spatial characteristics of forest resources data, a component geographic information system (ComGIS) was developed for forest resources management. The system embeds a GIS ActiveX control MapObjects (Inc. ESRI) on Visual C++ platform. System design, data organization and achieving way were studied and expatiated by taking Xigangzi Forestry Centre as study object. The system has many useful functions,, such as adding and display of various map layers, zoom of map by wheeling mouse, attribute and spatial data querying, map auto roaming, features rendering based on the spatial trait of data, label controlling through attribute data band with vector graph, as well as output of 'Column chart' for showing the result of statistics. At the same time, parts of source codes are attached.
