导航电子地图的自适应多尺度表达
Adaptive Multi-scale Visualizations of Road Network for Navigation
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摘要: 提出了导航电子地图的自适应多尺度表达的概念、模型,并设计了相应的实现方法。该方法根据道路网的密度、显示的范围自动调节显示屏幕上不同区域内的地图比例尺,实现同一屏幕上地图数据的多尺度显示。实验结果表明,本方法可以实现视相关的导航电子地图多尺度显示,即显示的比例尺随地物到观察位置的距离增大而变小,而且在一些约束规则的前提下,可以实现兴趣点(POI)的合理取舍。Abstract: The paper proposes a method for the adaptive multiscale representation of navigation map for LBS applications.The method is able to automatically set a feasible scale according to geographical scope and the complexity of road network.Moreover,the method achieves multiple-scale representations of road network in a display screen.Initial experimental studies are shown in this paper.Further research will focus on the adaptive representations and visualizations of road network data.
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