Visual Application Based on Spatiotemporal Data

Abstract

Spatiotemporal data refers to data that describes the attributes of an information object in terms of time and space dimensions. In the real world, the evolution of most information objects is related to geographical location. In this study, based on the spatio-temporal data, the spatial background of the corresponding time node and the spatiotemporal information of the information object are returned according to the query result, and the temporal and spatial correspondence is updated in time. Support the dynamic association of spatiotemporal information of information objects, study the temporal and spatial evolution of events, the life route of characters, the changes of national boundaries, etc., and conduct data analysis and data mining on this basis. The main work of this article. 1. According to user needs and system functions, use PyQt' graphical technology to realize the visualization of spatiotemporal data. 2.Based on the visualization of spatiotemporal data, the evolution process of historical events, including the overall route and the route of each time node, through the spatiotemporal background switching, spatial positioning, superimposed attribute information, etc., realizes the dynamic correlation of time and space, which is convenient for studying events. Develop and mine hidden information about events. 3. On the basis of the visualization of time and space data, study the life route of the character, including the overall route of the person's life and the route corresponding to each time node, analyze the character state according to the movement track of the character, and mine the hidden information of the character.