摘要
直接法是由DTM计算地形坡度的常用计算机算法之一,本文分析直接法的精度、优点和缺点,在此基础上对其进行改进,给出更实用的改进计算模型和计算公式,并结合实例,对二者进行分析比较。
Direct method in one of the most commonly-used computer algorithms for resolving terrain gradient On the basic of analysizing precision, superiority and inferiority of the direct method, this paper gives a more utihty methmetical model and formula and compares them with the exact examples.
出处
《江苏测绘》
1998年第2期28-31,共4页
Jiangsu Surveying and Mapping
