Scale-Aware Cartographic Displacement Based on Constrained Optimization

Scale-Aware Cartographic Displacement Based on Constrained Optimization
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基于约束优化的比例感知制图位移

DOI:
10.1109/iv.2019.00022
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发表时间:
2019
期刊:
In Proceedings of the 23rd International Conference on Information Visualisation (IV2019)
影响因子:
--
通讯作者:
and Masatoshi Arikawa
and Masatoshi Arikawa
中科院分区:
--
文献类型:
--
作者:
Ken Maruyama;Shigeo Takahashi;Hsiang-Yun Wu;Kazuo Misue;and Masatoshi Arikawa

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最近,根据地图比例尺一致地安排地图要素在数字制图综合中具有重要的技术意义。这主要是由于最近对信息地图系统的需求,特别是用于智能手机和平板电脑。然而,这种复杂的概化通常是由专家制图员手工进行的,因此是一个耗时且容易出错的过程。在本文中,我们专注于地图综合中的位移过程,并制定了一个约束优化问题,提供了一个相关的算法实现及其有效的解决方案。我们首先确定的基本空间关系的地图功能,如点和线,在每个地图比例尺的约束和优化的成本函数,惩罚过度位移的地图功能的地图比例尺。还提供了几个例子来证明,所提出的方法使我们能够保持一致的映射,而不管地图比例尺的变化。
The consistent arrangement of map features in accordance with the map scale has recently been technically important in digital cartographic generalization. This is primarily due to the recent demand for informative mapping systems, especially for use in smartphones and tablets. However, such sophisticated generalization has usually been conducted manually by expert cartographers and thus results in a time-consuming and error-prone process. In this paper, we focus on the displacement process within cartographic generalization and formulate them as a constrained optimization problem to provide an associated algorithm implementation and its effective solution. We first identify the underlying spatial relationships among map features, such as points and lines, on each map scale as constraints and optimize the cost function that penalizes excessive displacement of the map features in terms of the map scale. Several examples are also provided to demonstrate that the proposed approach allows us to maintain consistent mapping regardless of changes to the map scale.
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