Stroke构造、移位一体化的道路网示意化方法

A Schematic Method Based on the Integration of Stroke Construction and Displacement for Road Network

针对当前常用示意性地图生成方法中往往存在简化程度不够、未考虑长度信息以及时间效率低等问题,提出了stroke构造、移位一体化的道路网示意化方法。该方法在对道路网进行stroke划分构造的同时,直接对其进行渐进式的移位示意化及拓扑检查。同时本文还提出利用相似分形维数来定量比较并验证不同示意化方法的有效性。试验表明,本算法在考虑原始线形的基础上,示意化过程简单,时间效率较高,减少了拓扑冲突问题,保证了拓扑一致性及路网的均衡分布,具有较好的清晰度和认知度。

In current map schematization methods,the degree of simplification is not enough,the length of information is not considered,and time efficiency is low. This study aims to track these problems and a schematic method based on the integration of stroke construction and displacement for road network is proposed. The method constructs strokes for road network,at the same time to make displacement and topology check. Simultaneously,this study uses similar fractal dimension to quantitatively compare and evaluate the effectiveness of different schematic methods. The experimental results indicated that the new method takes into account the original alignment and makes the process simply. The method has more effective in time and reduces topological confliction problem to maintain topological consistency and balance the road network. Finally,the schematic map has great clarity and well-preserved map recognition.