基于MicroStation实现地形图数据的多比例尺转换

Multiscale Topographic Map Data Conversion Based on MicroStation

摘要:

不同比例尺之间数据转换一直是地图测绘行业的研究热点，但实现地形图入库数据的多比例尺转换和标准化输出的成熟软件案例在国内并不多见，该文主要以1∶500向1∶2000比例尺地形图转换为例，研究解决不同比例尺之间转换方法，地物数据结构间的自动转换，其中包括面转点、面转线等数据结构的转换，而且保证转换前后位置恰当、属性正确；以及不同比例尺地形图在转换时如何进行恰当的智能综合取舍等问题，在以后缩编实际生产中的人工干预环节也有着很强的针对性和指导作用。

Abstract:

The data transformation between different scales have became the research focus in the surveying and mapping industry. But, there is not a mature software cases in Multiscale data conversion and standard output. In this paper, taking topographic map transformation with the scale of 1∶500 and 1∶2000 as the exemples, transformation methods of topographic maps with different scales are studied. The automatic conversion between ground object data structures includes transformation from plane to point and from plane to line. It can be ensured that the location before and after the transformation is property right. How to make the right choice when topographic maps with different scales are transferred.