多波束海底地形图的制作方法探讨

摘要

提出了采用高斯距离函数加权平均算法,对离散多波束数据进行网格化,该算法的优点是权函数收敛较快,能较好地保留细小的地形特征,而且运算速度较快.对于图形制作方面,提出了2D等深线图叠加3D阴影图模式的海底地形图的绘制思路及实现方法,最终成果图立体感强,可以更好地表现出地形细节.最后就如何改进海底地形图的配色方案进行了探讨.%In this paper,the Gaussian weighted average algorithm is proposed to grid efficiently the discrete multi-beam data. That results in preserving the small terrain features and the faster convergence of the weight function. And then,a mapping method,which recommends 2D contour chart overlaying with the 3D shaded relief map, can achieve the final results of a good perspective and fine details of the terrain. Finally, how to improve the color schemes of the bathymetric chart is discussed.