摘要
以一个地质数据可视化平台的构建为例,从数据组织、地图服务和地图缓存等方面研究了影响系统性能的因素,分别讨论了图层数量、影像图数据量、图层显示比例、非池式和池式服务模式、单个和多个地图服务机制以及是否建立地图缓存对系统的影响,提出了合并相同结构图层、对影像图进行特定格式的压缩、合理设置图层显示比例、选择池式服务模式和建立多个地图服务机制以及在服务器端对图层有选择性建立地图缓存等优化策略。从实验平台的测试结果来看,几种优化策略分别都能够在不同程度上提高地图渲染速度和减少客户等待时间,尤其在综合利用这几种优化策略后,实验效果更明显。实验验证了上述优化策略的有效性和可行性。
The influence factors were analyzed with aspects of data organization,map service and cache.Data layers,data bulk of image maps,layers' scale range,not pooled or pooled service,a single service or multi-map services,and caching or not were discussed in a geological data visualization platform.Optimization strategies such as combining the homologous layers,compressing image maps to specific format,setting layers' scale range,selecting pooled service and multi-map services and creating cache for a selective layer on the server were proposed.The experimental result shows that each of them can improve the speed of rendering layers and reduce clients' waiting time.It will be more obvious if these strategies are integrated.The validity and feasibility of these optimization strategies are validated.
出处
《实验室研究与探索》
CAS
北大核心
2010年第7期6-10,40,共6页
Research and Exploration In Laboratory
基金
国家自然科学基金委青年基金资助项目(40802080)
