| 复杂地形景区三维导览图的设计与实现 |
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| 引用本文： | 吴思锴,李百寿,郭家豪,李雪,张卫平.复杂地形景区三维导览图的设计与实现[J].北京测绘,2020(1):38-43. |
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| 作者姓名： | 吴思锴 李百寿 郭家豪 李雪 张卫平 |
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| 作者单位： | 桂林理工大学测绘地理信息学院 |
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| 基金项目： | 桂林理工大学自治区级大学生创新创业训练计划(201910596257);国家自然科学基金(41161073);桂林市科学研究与技术开发计划(20190601;2016012601) |
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| 摘 要： | 为满足复杂地形景区对三维地图导览的需求,构建更为清晰的三维地图模型,提供良好的三维导览地图设计方案显得尤为重要。为了更好地与卫星影像进行贴合,DEM数据的采样密度要与卫星影像的分辨率一致。本文通过对比当下常用的四种空间插值方法的适用范围与运用特点,设置相关阈值及权重,直观比较了四种插值方法产生的插值结果,选择更适合复杂景区DEM插值的插值方法并对其进行精度提升,以此得到符合精度要求的DEM数据。最后利用相应地区的卫星影像进行地图投影及影像贴图,两种数据结合构建复杂景区的三维地图模型,给游客带来更为精确直观的定位信息和空间要素信息。
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| 关 键 词： | 数字高程模型(DEM) 空间插值方法 三维地图模型 地图导览 |
Design and Implementation of 3D Tour Map for Scenic Spots with Complex Terrain |
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| WU Sikai,LI Baishou,GUO Jiahao,LI Xue,ZHANG Weiping.Design and Implementation of 3D Tour Map for Scenic Spots with Complex Terrain[J].Beijing Surveying and Mapping,2020(1):38-43. |
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| Authors: | WU Sikai LI Baishou GUO Jiahao LI Xue ZHANG Weiping |
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| Institution: | (College of Surveying and Mapping Geographic Information,Guilin University of Technology,Guilin Guangxi 541004,China) |
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| Abstract: | In order to meet the needs of complex terrain scenic spots for three-dimensional map guidance,it is particularly important to build a clearer three-dimensional map model and provide a good design scheme for three-dimensional(3D)map guidance.In order to fit with satellite image better,the sampling density of DEM data should be consistent with the resolution of satellite image.By comparing the application scope and application characteristics of four commonly used spatial interpolation methods,setting relevant thresholds and weights,intuitively comparing the interpolation results of the four interpolation methods,this paper chooses an interpolation method more suitable for complex scenic areas to improve its accuracy,so as to obtain DEM data that meets the accuracy requirements.Finally,the corresponding satellite images are used for map projection and image mapping,and the two data are combined to construct a three-dimensional map model of complex scenic areas,which can give tourists more accurate and intuitive location information and spatial elements information. |
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| Keywords: | Digital Elevation Model(DEM) spatial interpolation method three-dimensional map model map navigation |
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