基于SVG的电力系统图形中动态图元技术研究

Study on Dynamic Primitive Technology in Power System Graph Based on SVG

基于SVG+AJAX的高质量图形显示是目前电力系统图形领域最通用的Web发布方案。随着电力系统接线图复杂性增加,为了完整地展示电力系统的实际结构,其接线图中需包含更多的电气元件信息及其连接关系,而每一个电气元件都引用一个SVG图元,使得SVG格式的图形文件日益增大,给网络传输带来了压力。提出一种动态图元技术,只在网络上传输少量必要的基本信息,即可实现电力系统图形的完整展示,从而有效降低网络传输负荷,提高图形系统的响应速度。

The high-quality graphs based on SVG （scalable vector graphics） and AJAX （asynchronous JavaScript and XML） is the most common Web publishing solution in power system graphic field. With the increasing complexity of power grid connection diagram, in order to fully display the real structure of the power system, the power grid diagram needs to contain more information about the electrical components and their connection relationships. Since each of the electrical components is referenced to SVG primitives, the size of the file increases fiercely and will increase the pressure to the network transmission. This paper puts forward a dynamic primitive technology with which the power system graphics could be completely demonstrated by transmitting only a small number of basic necessary information over the network for effectively reducing the network transmission load and improving the response speed of the graphics system.