电动查阅的系列地图挂图产品的开发与初步设计

摘要

文章在电动地图挂图的基础上,寻求探索开发能够逐幅精确定位显示多幅系列的地图挂图,并且能够局部放大比例尺显示和任意选取所要查阅图幅内容的电动系列地图挂图的新产品。%On the basis of electric access wall maps,this article seeks to explore the new products of wall map series,in which multiple maps can be accurately located and displayed,the views of the maps can be enlarged locally,the contents of the maps can be freely chosen.