Research On Touch-oriented Visual Interaction Technique

Considering that after the data is visualized,there is data stacking that causes data occlusion,which will cause incorrect operation in the process of user interaction;When users want to get multiple targets of interest,they need to click on multiple selected targets frequently,which increases user fatigue.Based on the above problems,this thesis carries out empirical research and proposes novel visual interaction techniques to solve these problems.This thesis first combines the touch input method to design the visual interaction techniques,then designs and carries out experiments,compares the technical performance on different touch screens,and finally investigates the performance differences between different techniques according to different touch screens and different target sizes,and gives the use strategies and application scenarios of visual interaction techniques.Firstly,based on the changes of touch gestures and touch point trajectories,two interaction strategies are proposed,namely static touch strategy and dynamic touch strategy.Under the two interaction strategies,three interaction techniques are proposed,namely Static Attraction,Dynamic Correlation and Dynamic Filtering,and then the techniques design and experiments are carried out.Additionally,in order to verify the feasibility of the techniques,it is compared with the Direct Touch,mainly through the comparison of technical performance in the target acquisition task of 3 sizes under 2 types of equipment,and comprehensively evaluated in the way of quantitative and qualitative analysis.The comprehensive performance analysis results show that the comprehensive performance of the Dynamic Transparent is the best and has been well evaluated by users,followed by the Dynamic Correlation,and the comprehensive performance of the Static Attraction is lower than that of the Dynamic Correlation.The comprehensive performance of the three techniques is better than that of the Direct Touch.Compared with the Direct Touch,the three techniques significantly improve the operation speed and accuracy of the target acquisition task,and can achieve better speed and accuracy performance through continuous training,and improve the interaction efficiency.Finally,according to the previous experimental results and comprehensive performance differences,the use strategy of touch-oriented visual interaction techniques is proposed,and the application scenarios of touch-oriented visual interaction techniques are designed considering the actual application,which provides a reference basis for the design of touch-oriented visual interaction techniques.