【摘要】 根据3DGIS建模需要与AutoCAD格式的城市全要素地图数据特征,提出对已有CAD数据进行共享,并对此过程进行数据质量控制。通过MapBasic编写的程序进行二次开发,实现了数据的计算机预处理过程,生产出符合建模要求的地图数据,极大地减少了人工工作量,提高了数据生产效率。更多还原

【Abstract】 Based on the needs of 3DGIS modeling and the whole key element data characteristics of the city with AutoCAD format, the paper proposes to share the CAD data and carries out data quality control over this course. Through secondary development of the program by MapBasic, we have realized the computer pretreatment and produced the map data according with the modeling demand. The artificial work is reduced in large amount and the production efficiency has improved.更多还原