Except problems of interpretation of the visualized results, most studies about the state of the arts of visualization techniques will focus on the processing of the huge amount of data (for example, tens or hundreds of millions of grid points). On the other hand, it is not easy to visualize a three-dimensional vector field comprehensibly even for one-tenth million grid points. Some intelligible representing methods have been developed. In this paper, we survey the methods and will show some new solutions.