| 基于可移动区域的点状要素注记配置 |
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| 引用本文： | 李霖,张航,朱海红,胡玮.基于可移动区域的点状要素注记配置[J].武汉大学学报(信息科学版),2018,43(8):1129-1137. |
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| 作者姓名： | 李霖 张航 朱海红 胡玮 |
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| 作者单位： | 1.武汉大学资源与环境科学学院, 湖北 武汉, 430079 |
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| 基金项目： | 国家自然科学基金41271453中央高校基本科研业务费专项2012205020211 |
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| 摘 要： | 注记候选位置的确定是注记配置的重要基础，直接影响到注记算法的实现方式和最终配置效果。现有注记研究广泛使用的注记模型，其候选位置未充分利用图面空间，一定程度上制约了注记效果的进一步提升。在此背景下，提出注记候选区域模型，以要素邻域内所有无冲突压盖的候选区域作为注记配置基础，在考虑点、线、面要素压盖的前提下完成点注记配置。同其他研究相比，该算法在注记结果上取得较大提高，能更好地满足地图生产需要。
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| 关 键 词： | 碰撞检测 注记候选区域 注记质量评价 注记顺序 |
| 收稿时间： | 2016-10-31 |
A Point-Feature Labeling Algorithm Based on Movable Regions |
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| Affiliation: | 1.School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China |
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| Abstract: | As the basis of point-feature label placement, the candidate label position directly affects the implementation and quality of labeling algorithms. However, fixed-position model and slider model are mainly used in previous researches, which restrict the further improvement of labeling results when considering the conflicts with point, line, and area background features. In this context, the candidate label region model based on the plane collision detection theory is proposed to accomplish conflict-free labeling by utilizing the surrounding zone of point feature. Compared with other studies, this algorithm makes a greatly improvement in label quantity and quality to meet the demand of map production. |
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