| With the rapid development of global satellite navigation precision positioning technology,data storage technology,the Internet of Things,the scale of Beidou highprecision positioning data in various fields such as deformation monitoring,geological survey and rescue etc.has also growb up with exponential rate.This has made data analysis and information extraction more difficult,and it also means the application of data visualization is of great significance to the above problems.Data visualization technology has important applications in the current data age.This technology aims to display data in various forms withvisualization interface technology.at present,there are a lot learning visualization component design platforms at home and abroad such as data V,Sugar,Tableau,Power BI,etc.However problems such as relatively high development threshold exist.At the same time,since these platforms are aimed at data visualization in general scenarios the applications in some specific scenarios have been limitaed.Not only that,the use of these commercial-level visualization platforms usually comes with relatively expensive fees.To solve above problems,this research focuses on the current development of data visualization and component technology,analysing several common visualization tools and visualization analysis methods.Based on related researching and analyzing the Beidou highprecision data visualization component platform had been was designed to fit the Beidou high-precision data generation's characteristics like large data volume,andstrong timely effectiveness.This platform mainly displays Beidou high-precision data from different scenarios such as "spatial dimension P","time dimension T",and "dynamic N".Users can mine the value behind the data and can make correct decisions quickly by using this simple way.The main features of the platform are as follows:(1)The whole stuctureof the platform is divided into four layers,and each layer communicates through a defined data protocol.The presentation layer aims to support interactive features and visual chart display;the application service layer realizes the exploratory selection of charts;the data conversion layer realizes the processing and conversion of data sources;the data layer realizes the import of local files and background interfaces.This design can improve system's flexibility and enhance the debuggability.,also achieve high cohesion and low coupling,and avoid multiple problems caused by the mixing of data flow operations and user operations.(2)Multiple data sources import is supported by this platform,including data preprocessing,component selection,visual attribute configuration,interactive mode selection,online development,online preview and other functions.Through this platform,users can quickly find suitable charts to display Beidou's high-precision data,which significantly shortens the cycle of delivery of products..At the same time,the page area is clearly divided,which reduces the user's cognitive difficulty and operation cost,and improves the interaction and user experience.(3)The platform has a simple and flexible drag-and-drop interface usage.After accessesing the customized data source,users can graph the individual components through dragging and dropping rhe form.The platform stores the canvas information and component configuration information in the database table by calling the save interface,and returns the corresponding configuration data id.The user can view the visualization page by carrying the database table id through the address parameter in the business interface.At present,the platform has been successfully applied to two projects.Based on practical application and testing,the functions and performance of the platform basically meet the development needs. |
PDF Full Text Request