基于CASS的非等间隔内插点断面图绘制方法研究

Based on CASS Different Distances Interpolation Points Study of Rendering Section View Methods

断面图是线路工程设计中不可缺少的基础资料,绘制断面图是线路工程中的主要工作,然而现行CASS绘制的地形断面图是采用断面方向上相同间隔的高程点绘制的,因此,不能详细地表现地形起伏变化。针对这一问题,本文提出一种距离加权内插高程点非等间隔距离绘制断面图的方法,通过该方法可生成不等间隔断面,提高了测点的利用率,更加准确地反映了断面的实况,为设计人员提供了坡度设计、土石方计算等更加准确的数据。

Section view map is the basic data of the line engineering project, Drawing cross - sectional view is the main steps of line project. However, which draw it through exhibiting the same spaced apart elevation point use CASS in the cross -sectional view direc- tion. Thus ,this method dontwell perform topographychanges. This paper proposes a method to solve this problem based on exhibiting the different spaced apart elevation point for drawing cross - section view by distance - weighted interpolation, using the method gener- atesdifferent space section view automatically, and more accurately reflects the real section for designers to provide slope design and earthwork engineering design basic data.