关于晕渲图中注记配置问题的研究

Research on point annotation of hill-shading map

本文在分析了当前晕渲图自动生产中注记处理的现状和存在问题的基础上,利用OpenGL纹理贴图技术,解决了文字位图生成、纹理透明处理、注记定位等技术问题,实现了晕渲图中随地形起伏注记的生成、交互操作和管理,提供了一种为晕渲图配置立体感较强的注记的方法。

This paper analyzed the current status and the problems about the annotation in computer hill-shading.By using the technique of the OpenGL's texture mapping,a series of problems for creating bitmap and pointing annotation have been solved.An inter-operative method about point annotation with fluctuant effect along the terrain on hill-shading map is implemented.