计算机科学 ›› 2019, Vol. 46 ›› Issue (1): 107-111.doi: 10.11896／j.issn.1002-137X.2019.01.016
朱立霞, 李天瑞, 滕飞, 彭博
ZHU Li-xia, LI Tian-rui, TENG Fei, PENG Bo
摘要： 在时序数据可视化领域,螺旋图是一种常用的可视化方法,它既能将多个阶段的数据同时展示在一个平面空间内,又能在有限的空间内展示任意时长的数据。针对现有的螺旋图可视化方法在展示大量的时间序列数据时会出现因螺旋线交叉而导致视觉杂乱的问题,研究螺旋图可视化方法意义非凡。首先将状态圆环上的数据点进行分类;然后在相邻的状态圆环之间设置虚拟绑定圆环,通过边绑定的函数将状态圆环上的数据点映射到其对应的虚拟绑定圆环上;最后在状态圆环与其对应的虚拟绑定圆环之间绘制Bézier曲线,在虚拟绑定圆环与虚拟绑定圆环之间绘制螺旋线,从而实现边绑定的效果。实验结果表明,该边绑定算法能够有效地对大规模数据进行可视化,并能有效地缓解视觉杂乱的问题。
中图分类号:
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