In order to fill contours fast and conveniently, a new automatic filling algorithm between contours based on triangulation irregularnet was proposed.
为了快速方便地进行等值线自动填充，提出了一种基于不规则三角网的等值线自动填充算法。
2
Two kinds of main data structures of the DTM are briefly introduced in the paper, which are irregularnet of triangulation (TIN) and regular rectangular grid (grid).
文中简要介绍了DTM的两种主要的数据结构：不规则三角网(TIN)和规则矩形格网(GRID)。
3
The change law of net swing for the unit axis is derived, the possible reseaus of the irregular swing are analyzed, and the methods for calculating regular swing are given in this paper.