摘要
根据水下河床水深点测量采样的特点，提出了既有规则格网法又有三角形法二者优点的四边形法绘制河床等深线图，该法数据结构简单，编程方便，速度快．文中借助图表对水下河床水深点的数据结构组织．四边形的构成以及等深线的追踪作了详细的讨论。
According to the characteristic of river-bed's data sampling, this paper presents the quadrilateral method of drawing river-bed's depth contours with the advantage of both the grid and triangle. The method possesses simple data structure, programming conveniently and drawing quickly. The paper discusses fully data structure of river-bed's sampling, quadrilateral construction (how to form quadrilateral net) and depth contour tracking by way of graphs and lists.
出处
《测绘工程》
CSCD
1999年第3期21-25,共5页
Engineering of Surveying and Mapping
关键词
测深线
水深点
四边形
水下河床
等深线图
Sounding line
River depth point
Quadrilateral
Depth contour
