| 基于3维API的电子地图显示研究 |
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| 引用本文： | 柳佳佳,栾晓岩,边淑莉.基于3维API的电子地图显示研究[J].东北测绘,2012(5):14-17. |
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| 作者姓名： | 柳佳佳 栾晓岩 边淑莉 |
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| 作者单位： | [1]信息工程大学测绘学院,河南郑州450052 [2]96669部队,北京100000 [3]61540部队,陕西西安710054 |
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| 基金项目： | 国家863计划（2009AA12 Z228）资助 |
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| 摘 要： | 电子地图显示速度直接影响地图用户的交互感受,一直是地图制图者关注的一个重点。本文从地图显示速度与适人化交互操作的关系出发,分析了GDI与OpenGL的特点和差异,提出了基于OpenGL的电子地图显示的方法,重点对基于OpenGL多线程的电子地图快速漫游显示技术和基于纹理映射的地图要素符号化方法进行了分析讨论,并进行了实验论证。
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| 关 键 词： | 电子地图 显示速度 OpenGL 多线程 纹理映射 符号化 |
Research on Electronic Map Based on 3D API |
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| LIU Jia-jia,LUAN Xiao-yan,BIAN Shu-li.Research on Electronic Map Based on 3D API[J].Northeast Surveying and Mapping,2012(5):14-17. |
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| Authors: | LIU Jia-jia LUAN Xiao-yan BIAN Shu-li |
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| Institution: | 1.Institute of Surveying and Mapping,the PLA Information Engineering University,Zhengzhou 450052,China; 2.96669 Troops,Beijing 100000,China;3.61540 Troops,Xi＇an 710054,China) |
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| Abstract: | The display speed of the electronic map affects directly the feeling of map users,and it is always the hot issues for the cartographers.This paper forms the relationship between the display speed of electronic map and the humanoid interaction,analyzes the characteristics and the difference between GDI and OpenGL,and proposes a new method based on OpenGL to display the electronic map.It discusses the speedy display based on OpenGL multi-thread and the map element symbolization method based on texture-mapping and verifies the results by the experiment. |
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| Keywords: | electronic map display speed OpenGL multi-thread texture-mapping symbolization |
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