基于网格的矢量场纹理绘制算法

Vector Field Texture Rending Algorithm Based on Mesh

基于网格的快速点定位方法与彩色绘制方法,提出了矢量场纹理绘制算法,该算法减少了流线追踪时过多的重复计算,大幅提高了计算速度,使得实时产生的庞大数据得到了有效利用,更能满足工程中的各种需求.在三维可视化处理过程中的效果尤为明显,不仅能够显示矢量场的结构信息和变化趋势,更能通过彩色图形表示矢量场的大小.同时可以通过自我控制比例,更为灵活的突出所侧重的方面.涡轮盘剖面温度梯度场受热分析和三维连杆模型位移场受力分析实验验证了算法的实用性.

Based on the quick point positioning of grid and color rendering method, a vector field visualization texture mapping algorithm was proposed. The repeat calculation of the streamline tracking was reduced and the speed was greatly improved, which made the real-time large data be effectively utilized and the various needs in the engineering be satisfied. The effect was particularly obvious in the 3D visualization process. Not only the structure and trends of the vector field could be displayed, but also the vector field size could be indicated by the color graphic. Meanwhile the force aspects could be highlighted more flexible through self-controlling the proportion. In addition, the practicality of the algorithm was proved by presentation of turbine disc＇s temperature gradient field and connecting rod＇s displacement field.