基于面图标的三维对称张量场可视化研究

Research on the Visualization of 3D Symmetric Tensor Fields Based on Surface Icons

现有的三维对称张量场可视化的面图标方法,仅表现了张量场的某一特征向量场在面图标上的方向信息,而没有表现出特征向量场的大小,基于此,提出了在面图标上通过绘制三维等值线及利用颜色属性来表现特征向量场的大小信息,这样,面图标就将特征向量场的方向和大小信息同时表现出来,从而进一步完善了三维对称张量场的面图标方法,更全面地揭示了张量场位于空间曲面上的信息。

The current surface icon method to visualize a 3D symmetric tensor field just displays the direction of certain eigenvector field of the tensor field,but not its magnitude.The paper presents that rendering 3D isolines and setting color on the surface icons can display the magnitude of the eigenvector field,thus the direction and magnitude of the eigenvector field are displayed simultaneously on the surface icons,which improves the surface icon method of 3D symmetric tensor fields and reveals more completely the information of tensor fields on surfaces.