Abstract
This paper presents hierarchical and time-varying data visualization techniques for nuclear reactor measurements and simulations. The developed system assumes time-varying values of hundreds or thousands of physical measurement values as input information. It divides the values according to their positions and unit systems, and represents the hierarchy of the values by HeiankyoView. It also represents the time sequence of the values in a thin window. This paper shows examples and user experiences that prove the effectiveness of the visualization techniques.
