村镇规划用图量大,测绘困难也多,往往由于资金紧张而只能利用小比例尺地形图做一般粗线条规划,所以规划不可能过于详细,执行中也必然遇到许多问题,不利于村镇建设。因此,创造一种既简便、经济又能满足村镇规划需求的方法,为编制村镇规划提供大比例尺的地形图,是测绘界专家多年来孜孜探索的重要课题。 The township plans have a large number of maps, and surveying and mapping are also difficult. As the funds are often tight, they can only use the small-scale topographic maps for general rough line planning. Therefore, planning cannot be too detailed, and many problems will inevitably be encountered during implementation, which is not conducive to the construction of villages and towns. Therefore, to create a method that is simple, economical and able to meet the needs of villages and towns planning, and to provide large-scale topographic maps for the preparation of village and town planning is an important issue that the experts in the surveying and mapping industry have explored over the years.