基于ASP．NETAJAX的WebGIS三维应用研究

Research of the WebGIS's 3D Application Based on ASP.NET AJAX

当前,WebGIS技术发展迅速,将不断成熟的Web3D技术应用于GIS的网络三维方向已有不少解决方案,而利用AJAX技术的优势可避免其中的插件下载问题。本文将ASP.NET AJAX技术与Web3D技术相结合进行尝试,首先概述了AJAX技术的含义,之后较为详细地介绍了ASP.NET AJAX框架的原理机制。利用该框架中页面局部刷新的功能对Web3D进行了可行性研究和实验,并提出了初步的解决方案。将该技术与其他实现方案相比较可以看出,该解决方式在WebGIS应用中具有一定的现实意义。

At present,lots of solutions to 3D GIS networks using the maturing Web3D technology have already been designed with the rapid development of the WebGIS technology. And the technical superiority of AJAX should be adopted in order to avoid the plug-in download problem. Proposed in this paper,ASP. NET AJAX and Web3D are combined and tried. First the meaning of the AJAX technology is outlined, and then the more detailed principle or mechanism of ASP. NET AJAX is introduced. The feasibility study and experiment of Web3D are carried out using the partial page refresh function of this technology,and a preliminary solution is provided. Compared with other methods,it can be seen that this way has some practical significance in WebGIS applications.