A stroke-based method for automated generation of schematic network maps

A stroke-based method for automated generation of schematic network maps
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一种基于笔划的网络示意图自动生成方法

DOI:
10.1080/13658811003766936
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发表时间:
2010-11
影响因子:
5.7
通讯作者:
董卫华
董卫华
中科院分区:
地球科学2区
文献类型:
--
作者:
董卫华

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本文用图解法对网络进行图形简化。提出了一种基于笔划的渐进式原理图生成方法。此方法将笔划(线段连接在一起的长线)视为实现的基本单元。程序如下:(a)由线段形成笔划,(B)沿沿着网格线和/或对角线重新定向笔划,以及(c)将(子)笔划上的两个端点和所有交点投影到重新定向的直线上,以及(d)检测并解决空间不一致性。描述了这些步骤中的每一个的方法。用一组实际路网数据对该方法进行了验证,并通过分形分析和实证研究对该方法进行了评价。实验结果表明,这种新方法比基于段的方法更有效,并且能够产生非常简单和清晰的图形。根据所得结果,建议采用基于笔划的四个主要方向的图式化。
This article deals with the graphic simplification of a network by schematization. A new method employing a stroke-based and progressive strategy is proposed to generate schematic network maps. This method treats a stroke (which is a long line with segments concatenated together) as a basic unit for the implementation. The procedure is as follows: (a) strokes are formed from line segments, (b) the strokes are re-orientated along grid lines and/or diagonals, and (c) two endpoints and all intersection points on (sub-)strokes are projected onto re-oriented straight lines, and (d) spatial inconsistency is detected and resolved. A methodology for each of these steps is described. This new method has been tested with a set of real-life road network data and evaluated by fractal analysis and empirical study. Experimental results show that this new method is more effective than segment-based methods and is able to produce graphics with great simplicity and clarity. Based on the results obtained, the stroke-based schematization with four primary directions is recommended.
DOI: --
发表时间: 2007
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