图根控制网
- 网络Mapping Control Network
图根控制网-
从村镇规划用图方面对大比例尺的测图的基本要求出发，依误差传播理论，逐级推算出图根控制网和首级控制网所需的精度，并在实践中得到应用。
This paper , starting with the basic requirement of mapping with a large scale in town planning , calculates the precision needed by mapping control network and primary control network in accordance with the error communication theory and it is applied in practice .