Study On3D Landforms Modeling Method Based On SketchUp

The process of3D landforms model can directly, vividly describe the distribution,landform spatial location, shape and internal structure features,3D animation modelcan also simulate the landform formation. The3D landforms modeling technologybased on SketchUp is efficient and practical3D modeling means as the researchersobserved landforms structure, analysis of morphological characteristics and provides anew idea in three-dimensional space. Therefore,3D landforms modeling is a focus ofattention in the field of modern natural geography and geographic information system.Based on the current situation of the development of3D modeling technology ofdomestic and foreign research, specific to the3D landforms modeling method basedon SketchUp, the key lies in data modeling, data is divided into skeleton model dataand texture data. Skeleton model data from the interpretation, interpretation andsampling data acquisition mode. Data acquisition and processing is the basis formodeling, application of SketchUp to complete the3D skeleton model creationprocess, with the ultimate aim of3D landforms modeling true representation ofregional landform and panoramic display, so the application of terrain texture data isparticularly important. The study introduced SketchUp environment four to create3Dlandforms modeling technology. For photo matching four3D landforms modelingtechnology, modeling, TIN modeling, contour lines and elevation point based on3Dlandforms model.To fold the geomorphic model, fault landforms model, surfacemodel as an example, the realization of three-dimensional display of the landformsfeatures; by alluvial fan landforms model and the landslide model as an example, theformation process of animation show. The3D landforms model can be shown througha variety of three-dimensional platform, realize the sharing of resources. In summary,based on3D landforms modeling technology of SketchUp is an ideal method for rapidmodeling of3D landforms.