一种基于梯度域的三维军标绘制方法

为提高三维战场环境仿真中军标的标绘速度,提出一种基于梯度域的三维动态军标快速绘制方法。本方法首先提取军标覆盖区域的地形数据,通过梯度域计算获取对地形形状影响最大的若干特征点;通过特征合并对特征点进行进一步精简;通过对特征点进行样条插值,实现三维军标控制曲线的平滑过渡。实验证明,通过本绘制方法可以实现军标的快速绘制,并能使军标在动态运动过程中保持地形匹配,可显著提高军标绘制效率。

Rendering Method for 3D Military Symbol Based on Gradient Field

To improve the marking performance of the 3D military symbol,a fast rendering method based on gradient field was proposed.The method could decrease rapidly the time cost of generating and rendering for 3D symbol.The approach extracted the terrain height data covered by the symbol.And the feature of the terrain via processing in the gradient field was obtained.The feature points were simplified by combining based on their contribution.The smooth effect of the final control curve was achieved by interpolating these feature points.The interpolating procedure adopted the Catmull-Rom algorithm.The experimental results denote that the method can render the 3D symbol quickly.The final result can keep dynamic matching the terrain during simulation.