基于SketchUp的三维地貌建模技术

摘要

提出了三维地貌模型的逻辑结构,阐述了基于三维建模工具SketchUp的三维地貌建模流程,介绍了基于等高线和基于高程点的2种三维地貌建模技术；并以大连生态科技创新城核心区为例,详细介绍了2种建模技术的具体步骤.%The 3D landform model is a hotspot of Physical Geography and Geographical Information System fields currently, which directly and vividly describe the characteristics of geospatial distribution, position, shape and internal structure of the landform. The paper forwarded the logical structure of the 3D landform model, and introduced the modeling process of the 3D landform which used Google SketchUp as the 3D modeling tool, and introduced two kinds of modeling technology respectively based on the contours and the elevation points. Furthermore, the study took Dalian BEST City as example, elaborated the concrete steps of the modeling technologies. The results revealed that the modeling technology of the 3D landform based on SketchUp is an ideal method of rapid modeling.