Butkiewicz Thomas, Dou Wenwen, Wartell Zachary, Ribarsky William, Chang Remco
The Charlotte Visualization Center, UNC Charlotte, NC, USA.
IEEE Trans Vis Comput Graph. 2008 Nov-Dec;14(6):1165-72. doi: 10.1109/TVCG.2008.149.
Traditional geospatial information visualizations often present views that restrict the user to a single perspective. When zoomed out, local trends and anomalies become suppressed and lost; when zoomed in for local inspection, spatial awareness and comparison between regions become limited. In our model, coordinated visualizations are integrated within individual probe interfaces, which depict the local data in user-defined regions-of-interest. Our probe concept can be incorporated into a variety of geospatial visualizations to empower users with the ability to observe, coordinate, and compare data across multiple local regions. It is especially useful when dealing with complex simulations or analyses where behavior in various localities differs from other localities and from the system as a whole. We illustrate the effectiveness of our technique over traditional interfaces by incorporating it within three existing geospatial visualization systems: an agent-based social simulation, a census data exploration tool, and an 3D GIS environment for analyzing urban change over time. In each case, the probe-based interaction enhances spatial awareness, improves inspection and comparison capabilities, expands the range of scopes, and facilitates collaboration among multiple users.
传统的地理空间信息可视化通常呈现的视图会将用户限制在单一视角。当缩小视图时，局部趋势和异常情况会被抑制并丢失；当放大进行局部检查时，区域之间的空间感知和比较就会受到限制。在我们的模型中，协同可视化被集成到各个探测界面中，这些界面描绘用户定义的感兴趣区域内的局部数据。我们的探测概念可以融入各种地理空间可视化中，使用户能够观察、协调和比较多个局部区域的数据。在处理复杂模拟或分析时，当各个地方的行为与其他地方以及整个系统不同时，它特别有用。我们通过将该技术整合到三个现有的地理空间可视化系统中，来说明我们的技术相对于传统界面的有效性：一个基于智能体的社会模拟、一个人口普查数据探索工具以及一个用于分析城市随时间变化的三维地理信息系统环境。在每种情况下，基于探测的交互增强了空间感知，提高了检查和比较能力，扩大了范围，并促进了多个用户之间的协作。
