| 基于3DGIS的城市规划可视性分析模型研究 |
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| 引用本文： | 尹长林,许文强. 基于3DGIS的城市规划可视性分析模型研究[J]. 测绘科学, 2011, 36(4): 142-144 |
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| 作者姓名： | 尹长林 许文强 |
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| 作者单位： | 1. 武汉大学城市设计学院,武汉430072;长沙市规划信息服务中心,长沙410013
2. 长沙市规划信息服务中心,长沙,410013 |
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| 摘 要： | 视觉效果是城市规划需要考虑的重要要素之一.基于3 DGIS的计算机技术可以用于定量分析城市三维景观空间的可视性.本文介绍了可视性分析应用于城市规划的流程,提出了针对地形和建筑物可视性分析的数学几何模型.在地形可视性分析模型中,采用了一种结合水平投影和高程插值计算的方法判断地形上两点之间的通视性；在建筑物可视性分析中,采...
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| 关 键 词： | 可视性分析 城市规划 3DGIS |
Visibility analysis model of urban planning based on 3DGIS |
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| YIN Chang-lin,XU Wen-qiang. Visibility analysis model of urban planning based on 3DGIS[J]. Science of Surveying and Mapping, 2011, 36(4): 142-144 |
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| Authors: | YIN Chang-lin XU Wen-qiang |
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| Affiliation: | ②(①School of Urban Design,Wuhan University,Wuhan 430072,China;②Planning Information Service Center,Changsha 410013,China) |
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| Abstract: | The visual sensation is an important factor in urban planning.A computer analysis technology based on the three-dimensional Geographical Information Systems(3DGIS) can be used to measure the visibility in urban space.The process of visibility analysis applied in urban planning was introduced at first in the paper.Different geometric and mathematical models were studied.In terrain visibility analysis,a method based on projection and elevation interpolation was used to calculate the visibility of two points.And in building visibility analysis,another projection method was proposed to judge the relationshi Pbetween the sight and building.Based on the visibility analysis of two points,an approximate visual field in a plane could be computed in a discrete way.The analysis models could be used selectively in different landscape conditions.The visibility analysis models were proved to be feasible. |
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| Keywords: | visibility analysis urban planning 3DGIS |
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