【摘要】 针对铁路地理信息应用的专业化、需求分散、系统多元化等特点,提出基于MVC模式的空间分析服务模型框架。模型框架结构分为数据层、应用服务层和视图层。将空间分析的功能独立出来,为其他的系统和功能提供形式多样的空间数据分析服务。模型框架在物理上以分布式组件技术作为其实现技术。把铁路各种形式多样的应用划分为用户视图、空间模型和控制器。在该框架上实现基于沪宁线综合安全监测信息的车辆追踪的应用。更多还原

【Abstract】 In consideration of specialization, discrete demands and complexity of the applications in railway (geography) information system, a spatial analysis service framework based on MVC pattern is provided in this (paper). This model is composed of three tiers: data tier, application tier and presentation tier. The spatial analysis components exist as independent parts to provide spatial data analysis service in a multitude of forms. The model frame takes the technology of distributed components as the means for its realization. Multi-form applications on the railway are divided into user views, spatial models and controllers. On the basis of that frame, the application in car tracing is realized based on the comprehensive safety monitoring information on Shanghai-Nanjing line.更多还原