摘要
嵌入式GIS系统已经深入到国民经济和社会生活多个方面,并得到广泛应用,在资源受限的嵌入式平台上如何通过软件方法提高矢量地图显示速度值得研究。建立矢量地图显示数学模型后,本文从降低数据在外存定位时间、减少数据读取时间和提高矢量地图数据显示处理效率三个方面进行重点分析和阐述,测试结果表明这些方法是有效的。
Embedded GIS has been widely used in national economy and social life.It is important to study on how to improve vector map display speed by software methods on limited resource embedded studio.After building vector map display mathematics model,three methods are analyzed and explained in details,which are lowering data positioning time in external memory,reducing data reading time and increasing vector map display process.Experiment results show that these methods are very valid to improve vector map display speed on embedded platform.
出处
《测绘科学》
CSCD
北大核心
2007年第6期113-115,共3页
Science of Surveying and Mapping
