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首页> 外文期刊>The international journal of virtual reality >A Magic Treemap Cube for Visualizing Olympic Games Data
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A Magic Treemap Cube for Visualizing Olympic Games Data

机译：可视化奥运数据的魔术树图立方体

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摘要

Treemap, a common information visualization approach for dividing a display area into nested rectangles, has a good performance on visualizing hierarchical data. And it enables user to compare nodes in the same level and to learn certain relationship between adjacent levels. However, treemap layout is limited to visualize multi-dimensional hierarchical data in which the hierarchy is unfixed and complex, especially when the hierarchy is an arbitrary graph. Considering this problem, we present a novel extension called magic treemap cube, which improves the layout and has a good performance on visualizing unfixed (cross-level) and complex data, inverting hierarchy without reorganizing the structure, and enabling users to easily compare among treemaps. The magic treemap cube is a three-dimensional regular hexahedron whose six faces are covered by six different treemaps. Each dimension of the magic treemap cube is a hierarchy structure specified by users according to a hierarchical division of visualization information. With the treemap algorithm, tagcloud and mapping rules, the treemaps are automatically controlled by permutations of three dimensions of the cube. Users could observe the six correlative treemaps respectively by rotating the magic treemap cube in three dimensional Cartesian coordinate. And this magic treemap cube can be unfolded into a tiled treemap in 2D Cartesian coordinate for users-friendly comparison of each treemap. Meanwhile, a merging operation to the tiled treemap is proposed to not only compare two treemaps through the adjacency relations among faces but also provide more information. For demonstrating the above characteristics, an application (called Olympic Vis) has been implemented to visualize the Beijing 2008 Olympic Games information, which involves multi-dimensional hierarchy and interconnected data. The OlympicVis can display Cube View, Schedule View, Medal View, Date Filter and Time Line.
机译：树形图是一种用于将显示区域划分为嵌套矩形的常见信息可视化方法，在可视化分层数据方面具有良好的性能。它使用户能够比较同一级别的节点并了解相邻级别之间的某些关系。但是，树形图布局仅限于可视化层次结构不固定且复杂的多维层次结构数据，尤其是当层次结构是任意图形时。考虑到此问题，我们提出了一种新的扩展，称为魔术树图多维数据集，它可以改善布局并在可视化未固定（跨级别）和复杂数据，在不重新组织结构的情况下反转层次结构以及使用户轻松在树图之间进行比较方面具有良好的性能。 。魔术树图立方体是三维正则六面体，其六个面由六个不同的树图覆盖。魔术树图立方体的每个维度都是用户根据可视化信息的层次划分指定的层次结构。利用树形图算法，tagcloud和映射规则，树形图由多维数据集的三个维度的排列自动控制。用户可以通过在三维笛卡尔坐标中旋转魔术树图立方体来分别观察六个相关树图。而且，该魔术树形图立方体可以展开为2D笛卡尔坐标的平铺树形图，以便于用户友好地比较每个树形图。同时，提出了对平铺的树状图的合并操作，以不仅通过面部之间的邻接关系比较两个树状图，而且提供更多的信息。为了证明上述特征，已实现了一个应用程序（称为Olympic Vis）以可视化北京2008年奥运会信息，该信息涉及多维层次结构和互连的数据。 OlympicVis可以显示多维数据集视图，时间表视图，奖牌视图，日期过滤器和时间线。

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  • 作者

    Xiaowu Chen; rnHaolin Yang; rnYongtao Ma; rnBin Zhou;

  • 作者单位

    State Key Laboratory of Virtual Reality Technology and Systems, School of Computer Science and Engineering, Beihang University, Beijing 100191, China;

    rnState Key Laboratory of Virtual Reality Technology and Systems, School of Computer Science and Engineering, Beihang University, Beijing 100191, China;

    rnState Key Laboratory of Virtual Reality Technology and Systems, School of Computer Science and Engineering, Beihang University, Beijing 100191, China;

    rnState Key Laboratory of Virtual Reality Technology and Systems, School of Computer Science and Engineering, Beihang University, Beijing 100191, China;

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  • 正文语种 eng
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  • 关键词

    treemap; hierarchy visualization; information visualization; treemap cube;

    机译：树状图;层次结构可视化;信息可视化;树图立方体;

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