| 电子海图系统线状符号表达及绘制方法 |
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| 引用本文： | 王立新. 电子海图系统线状符号表达及绘制方法[J]. 应用科技, 2011, 0(8): 8-11 |
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| 作者姓名： | 王立新 |
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| 作者单位： | 中国船舶工业集团公司第708研究所; |
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| 基金项目： | 国家自然科学基金资助项目(60904087) |
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| 摘 要： | 电子海图系统中的线状符号应用广泛,但符号表示复杂,特别在拐点处容易出现失真现象．针对这个问题,该文在分析现有线状符号图元组成及特点的基础上,设计了以视觉变量为主要成员的线状符号数据结构,提出了断点几何线状填充以及循环配置图元方法,有效地解决了线状符号在拐点处图元的交叉、断裂、空白等问题．通过仿真可以看出,处理后的线状符号不仅存储简单,而且在视觉上达到了更好的显示效果．
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| 关 键 词： | 电子海图系统 线状符号 图元 拐点 |
Expression and mapping method of ECS-based linear symbols |
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| WANG Lixin. Expression and mapping method of ECS-based linear symbols[J]. Applied Science and Technology, 2011, 0(8): 8-11 |
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| Authors: | WANG Lixin |
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| Affiliation: | WANG Lixin(The 708 Institute,China State Shipbuilding Corporation,Shanghai 200011,China) |
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| Abstract: | Linear symbols in electronic chart system(ECS) are widely used,but symbols are complex,especially in turning point easily appear the distortion.To address this issue,this paper designs the linear symbols data structure model with pixel visual symbols as key members after analyzing the formulation and features of existing unit symbol of linear symbols,which also proposes the method of breakpoints filling algorithm and circular geometric configuration is effective in the treatment of the linear symbolic turni... |
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| Keywords: | electronic chart system linear symbol unit symbol turning point |
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