【摘要】 对海量地形数据快速整体CDT生成、实时更新等算法进行了研究 ,并在AutoCAD环境下研制了公路数字地面模型软件BID Land ,实现了与公路CAD的集成。 1 90多公里国家重点公路工程勘察设计中的实际应用表明 ,程序算法具有很强的实用性、极高的效率和良好的地形模拟精度。更多还原

【Abstract】 An efficient and practical algorithm for CDT generation and real time updating from mass geographic data is introduced in this paper. Based on this algorithm , a DTM software BID Land has been developed and integrated with road CAD. Its high speed, accuracy were shown in more than 190 km highway design application.更多还原