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A FRAMEWORK FOR ONLINE SPATIO-TEMPORAL DATA VISUALIZATION BASED ON HTML5

机译:基于HTML5的在线时空数据可视化框架

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Web is entering a new phase - HTML5. New features of HTML5 should be studied for online spatio-temporal data visualization. In the proposed framework, spatio-temporal data is stored in the data server and is sent to user browsers with WebSocket. Public geo-data such as Internet digital map is integrated into the browsers. Then animation is implemented through the canvas object defined by the HTML5 specification. To simulate the spatio-temporal data source, we collected the daily location of 15 users with GPS tracker. The current positions of the users are collected every minute and are recorded in a file. Based on this file, we generate a real time spatio-temporal data source which sends out current user location every second. By enlarging the real time scales by 60 times, we can observe the movement clearly. The data transmitted with WebSocket is the coordinates of users' current positions, which will can be demonstrated in client browsers.
机译:Web正在进入新的阶段 - HTML5。应研究HTML5的新功能,以便在线时空数据可视化。在所提出的框架中,时空数据存储在数据服务器中,并与WebSocket发送到用户浏览器。互联网数字地图等公共地理数据被集成到浏览器中。然后通过HTML5规范定义的Canvas对象实现动画。要模拟时空数据源,我们将15个用户的每日位置与GPS跟踪器收集。每分钟收集用户的当前位置,并记录在文件中。基于此文件,我们生成一个实时时空数据源,每秒发出当前用户位置。通过扩大60倍的实时尺度,我们可以清楚地观察运动。使用WebSocket发送的数据是用户当前位置的坐标,这将在客户端浏览器中演示。

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