【摘要】 在分析Kiwi显示数据存储组织方法的基础上,研究了Kiwi显示数据在内存中的动态组织,改进了地图显示的二级缓存方法,提出了地图显示的双缓冲池策略。试验结果表明,本文研究的数据动态组织方法和地图显示策略提高了地图显示速度。更多还原

【Abstract】 Based on the analysis of the store methods of Kiwi format’s map display data, the dynamic organization methods of these data in the navigation software memory are studied. This paper improves the two-level buffer method of map display and a dual buffer pond strategy of the map display, in which data buffer pool and map bitmap buffer pool are used to manage data pre-load and map pre-draw in the process of drawing map. The results demonstrate the dynamic organization methods and the dual buffer pool map display strategy can improve the speed of map display.更多还原